Digital PDFs

AZ-GLBAA-MN

November 1985

157 pages

Original

3.7MB

Document:	MicroVAX II 630QB Technical Manual
Order Number:	AZ-GLBAA-MN
Revision:	000
Pages:	157
Original Filename:

OCR Text

AZ-GLBAA-MN

............
~ •••••••

...........

...
: . : . : : : . : : : :.: : : :": :.:.:.: :.:.:.:.:.:.:.:.:.:.:.:::.:::::::-::::::::::::::::::+:+:+:'~~xx:::::::,
.....................................................
....... .. . ........................ " ................... .~~xx:::::::

. . ...... : ... :.:::.::::: :': : : :": :':.:': :.:.:.:.:.:.:.:.:.:.:.:::.:::::::.:::::::::::::::::::t:::t:::t::.

............ ,
.... ... .

..................................................~~xx:::::::

. : : : . : : : : : :': : : :': :':.:': :':.:':.:':.:':.:':.:':::':::::::':::::::::::::::::::t:::t:::t::.

MicroVAX II
630Q8
Technical Manual

Prepared by Educational Services
of Digital Equipment Corporation

u ••••••• a.
~

1st Edition, November 1985

The material in this manual is for informational purposes and is subject to change
without notice.
Digital Equipment Corporation assumes no responsibility for any errors that may
appear in this manual.
FCC Notice: This equipment generates, uses, and may emit radio frequency
energy. The equipment has heen tested and found to comply with the limits for a
Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which
are designed to provide reasonable protection against such radio frequency interference when operated in a commercial environment. Operation of this equipment in a
residential area may cause interference, in which case the user, at his own
expense, may be required to take measures to correct the interference.
Printed in U.S.A.
The manuscript for this book was created on a VAX-11/780 system and, via a
translation program, was automatically typeset by Digital's DECset Integrated Publishing System. The book was produced by Educational Services Development and
Publishing in Marlboro, MA.

The following are trademarks of Digital Equipment Corporation:

mamaDmo™

COMPACTape
DEC
DECmate
DECUS
DECwriter
DIBOL
LSI-II
MASSBUS

MicroVAX
MicroVMS
PDP
PIOS
Professional
Q-Bus
Rainbow
RSTS
RSX

RT
ULTRIX-32m
UNIBUS
VAX
VAXELN
VMS
VT
Work Processor

Contents

Introduction
Chapter 1

BA123-A Enclosure

1.1
1.2
1.3
1.3.1
1.3.2
1.4
1.5
1.6
1.7

INTRODUCTION .................................................................. 1-1
ENCLOSURE FRAME ........................................................... 1-2
CONTROL PANEL ................................................................ 1-5
Mass Storage Shelves........................................................ 1-5
CPU Console Board ........................................................... 1-6
SIGNAL DISTRIBUTION BOARD ........................................ 1-8
BACKPLANE ......................................................................... 1-10
POWER SUPPLY ................................................................... 1-13
I/O DISTRIBUTION PANEL ................................................. 1-17

Chapter 2

Base System

2.1
2.2
2.2.1
2.2.2
2.2.3
2.3

INTRODUCTION .................................................................. 2-1
KA630-A CPU ........................................................................ 2-1
Console Program............................................................... 2-4
Primary Bootstrap Program (VMB) ................................... 2-5
CPU Patch Panel Insert .................................................... 2-6
MS630 MEMORY MODULE ................................................. 2-9

Chapter 3

System Options

3.1
3.1.1
3.1.2
3.2
3.2.1
3.2.2

INTRODUCTION .................................................................. 3-1
Ordering Options............................................................... 3-1
Module Configuration ........................................................ 3-2
COMMUNICATIONS ............................................................. 3-4
DEQNA Ethernet Interface ............................................... 3-4
DHVll Asynchronous Multiplexer (Eight Lines) .............. 3-6

iii

Contents

3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.2.10
3.3
3.3.1
3.3.2
3.3.2.1
3.3.2.2
3.3.3
3.4
3.4.1

DHVll Remote Distribution Cabinet Kit
(CK-DHVII-VA) ............................................................ 3-9
DLVJl Asynchronous Interface (Four Lines) .................... 3-11
DMVll Synchronous Controller. ....................................... 3-14
DPVll Synchronous Interface .......................................... 3-20
DRVII-J High Density Parallel Interface (Four Lines) ..... 3-24
DZQll Asynchronous Multiplexer (Four Lines) ................ 3-26
DZVll Asynchronous Multiplexer (Eight Lines) ............... 3-29
LPVll Interface Module (For LP25 System Printer) ....... 3-32
DISK STORAGE .................................................................... 3-34
RQDX2, RQDX3 Disk Controllers ..................................... 3-34
RD52, RD53 Disk Drives .................................................. 3-37
Factory Configuration ................................................... 3-37
Disk Formatting ............................................................ 3-37
RX50 Diskette Drive......................................................... 3-39
TAPE STORAGE ................................................................... 3-40
TK50 Tape Drive Subsystem ............................................ 3-40

Chapter 4

Configuration

4.1
4.1.1
4.1.2
4.1.2.1
4.1.2.2
4.1.3
4.1.4
4.1.5
4.2

CONFIGURATION RULES ................................................... 4-1
Module Physical Priority ................................................... 4-1
Expansion Space ................................................................ 4-3
Backplane ...................................................................... 4-3
I/O Distribution Panel Insert Space .............................. 4-3
Power Requirement........................................................... 4-3
Bus Loads .......................................................................... 4-6
Module CSR Addresses and Interrupt Vectors ................. 4-6
CONFIGURATION EXAMPLES ........................................... 4-9

Chapter 5

Diagnostics

5.1
5.2
5.2.1
5.2.2
5.2.3
5.3

INTRODUCTION .................................................................. 5-1
KA630-A BOOT AND DIAGNOSTIC ROM .......................... 5-1
Power-up Mode ................................................................. 5-1
Console Mode.................................................................... 5-5
Console Terminal Error Messages .................................... 5-5
POWER-UP LEDS ON MASS STORAGE, BACKUP,
AND COMMUNICATIONS DEVICES ............................... 5-7
MicroVAX MAINTENANCE SySTEM .................................. 5-10
Test the System (Menu Item #1) ...................................... 5-12

3.2.3

5.4
5.4.1

Contents

5.4.2

5.5.2

Display System Configuration and Devices
(Menu Item #2) ............................................................. 5-12
Display the Utilities Menu (Menu Item #3) ...................... 5-12
Display the Service Menu (Menu Item #4) ....................... 5-12
Exit the MicroVAX Maintenance System
(Menu Item #5) ............................................................. 5-12
TROUBLESHOOTING ........................................................... 5-13
Unknown System Level Problems
(System Fails to Boot) ................................................... 5-13
Device-Specific Problems ................................................... 5-13

Chapter 6

FRU Removal and Replacement Procedures

6.1
6.2
6.2.1
6.2.2
6.3
6.4
6.5
6.5.1
6.5.2
6.6
6.6.1
6.6.2
6.7
6.8
6.9
6.10
6.11
6.12

INTRODUCTION .................................................................. 6-1
REMOVAL OF THE EXTERIOR PANELS .......................... 6-4
Removal of the Right Side PaneL................. .................... 6-4
Removal of the Left Side PaneL....................................... 6-6
ON/OFF SWITCH REMOVAL ............................................... 6-8
CPU CONSOLE BOARD REMOVAL .................................... 6-9
13.3 em (5.25 in) MASS STORAGE DEVICE REMOVAL ... 6-10
RD52 Read/Write Board RemovaL ................................... 6-10
RD53 Read/Write Board RemovaL ................................... 6-14
FAN REMOVAL .................................................................... 6-16
Mass Storage Fan Removal ............................................... 6-16
Card-Cage Fan Removal .................................................... 6-18
MODULE REMOVAL ............................................................ 6-19
DOOR INTERLOCK SWITCH REMOVAL ........................... 6-21
TEMPERATURE SENSOR REMOVAL ................................ 6-21
POWER SUPPLY REMOVAL ............................................... 6-23
BACKPLANE REMOVAL ...................................................... 6-25
FILTER CONNECTOR REMOVAL ...................................... 6-27

5.4.3
5.4.4
5.4.5
5.5
5.5.1

Appendixes
Appendix A
Appendix B

Console Commands ................................................................ A-I
Console Error Messages and Explanations ............................ B-1

Contents
FIGURES
1-1
1-2
1-3
1-4
1-5
1-6
1-7
1-8
1-9
1-10
1-11
1-12
1-13
1-14
1-15
2-1
2-2
2-3
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
3-12
3-13
3-14
3-15
3-16
3-17
3-18
3-19
3-20
3-21

BAI23-A Enclosure .............................................................................. 1-1
BAI23-A Removable Panels and Doors........ .................. ................ ...... 1-2
Air Flow ............................................................................................... 1-3
Temperature Sensor PC Board ............................................................ 1-4
Mass Storage Shelves ........................................................................... 1-5
CPU Console Board.............................................................................. 1-7
Signal Distribution Board...................................................................... 1-8
Signal Distribution Board Cabling ......................................................... 1-9
Backplane Grant Continuity.................................................................. 1-11
Backplane Connectors ........................................................................... 1-12
Power Supply ........................................................................................ 1-14
Circuit Breaker, Voltage Select Switch, Connectors (Rear View) ........ 1-15
Electrical Distribution ........................................................................... 1-16
I/O Distribution Panel. .......................................................................... 1-18
Filter Connectors and Adapter Plate .................................................... 1-19
KA630-A CPU Module ......................................................................... 2-3
CPU Patch Panel Insert (Front View) .................................................. 2-6
CPU Patch Panel Insert (Rear View) ................................................... 2-7
DEQNA Module Layout ........................................................................ 3-4
DEQNA Internal Cabling ...................................................................... 3-5
DHVll Module Layout ........................................................................ 3-7
DHVll Internal Cabling ....................................................................... 3-8
DHVl1 Remote Distribution Cabinet Kit ............................................. 3-10
DLVJl Module Layout .......................................................................... 3-12
DLVJl Internal Cabling ........................................................................ 3-13
DMVll (M8053) Module Layout ......................................................... 3-17
DMVll (M8064) Module Layout ......................................................... 3-17
M8053 Internal Cabling ........................................................................ 3-18
M8064 Internal Cabling........................................................................ 3-19
DPVll Module Layout ......................................................................... 3-20
DPVl1 Internal Cabling ....................................... ;............................... 3-23
DRVII-J Module Layout ...................................................................... 3-24
DRVII-J Internal Cabling ..................................................................... 3-25
DZQll Module Layout ......................................................................... 3-26
DZQll Internal Cabling ........................................................................ 3-28
DZVll Module Layout ......................................................................... 3-29
DZVll Internal Cabling ....................................................................... 3-31
LPVl1 Module Layout ......................................................................... 3-32
LPVl1 Internal Cabling ........................................................................ 3-33

Contents

3-22
3-23
3-24
3-25
3-26
3-27
4-1
4-2
4-3
4-4
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-10
6-1
6-2
6-3
6-4
6-5
6-6
6-7
6-8
6-9
6-10
6-11
6-12
6-13
6-14
6-15
6-16
6-17
6-18
6-19

RQDX2 Module Layout ........................................................................ 3-35
RQDX3 Module Layout ........................................................................ 3-35
RD52 Disk Drive and Shunt Jumper .................................................... 3-38
RX50 Diskette Drive ............................................................................ 3-39
TK50 Tape Drive Subsystem ............................................................... 3-40
M7546 Module Layout ......................................................................... 3-41
Configuration Worksheet ...................................................................... 4-4
Module Utilizations ............................................................................... 4-9
Base System..................................... .................................................... 4-11
Advanced System ................................................................................. 4-12
KA630-A CPU Module LEDs ............................................................... 5-5
Example of a Console Terminal Error Message ................................... 5-6
LED Orientation on the DEQNA Module ............................................. 5-7
LED Orientation on the RQDX2 Module ............................................. 5-7
LED Orientation on the TQK50 Module .............................................. 5-9
Disclaimer Screen ................................................................................. 5-10
Load Additional Media Screen................................................. ............. 5-11
Maintenance System Main Menu............................... ..... ........ ............. 5-11
Troubleshooting Flowchart for Fail-to-Boot Problems ......................... 5-14
Troubleshooting Flowchart for Device-Specific Problems .................... 5-15
BA123-A FRUs .................................................................................... 6-3
Unhooking the Right Side PaneL ......................................................... 6-4
Removing the Right Side Panel........ ........ ...... ...................................... 6-5
Unhooking the Left Side Panel....................................................... ...... 6-6
Removing the Left Side PaneL............................................................ 6-7
On/Off Switch Removal ...'................................. .................................... 6-8
CPU Console Board Removal......................................................... ...... 6-9
Removing the Slide Plate................... .................................................. 6-11
Removing the 2-Pin Connector and Screws ......................................... 6-11
Removing the Front Bezel. ................................................................... 6-12
Removing Phillips Screws from Heatsink ............................................. 6-13
Removing the MPCB ............................................................................ 6-13
RD53 Read/Write Board RemovaL ...................................................... 6-15
Mass Storage Fan Removal............................. ..................................... 6-17
Card-Cage Fan Removal ....................................................................... 6-18
Module Removal ................................................................................... 6-20
Door Interlock Switch/Temperature Sensor. ........................................ 6-22
Power Supply Removal. ........................................................................ 6-24
Backplane Removal ............................................................................... 6-26

vii

Contents
TABLES
1-1
1-2
2-1
2-2
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
3-12
3-13
3-14
3-15
3-16
3-17
3-18
3-19
3-20
3-21
3-22
3-23
4-1
4-2
4-3
5-1
5-2
5-3
5-4
6-1
B-1

viii

Regulator A and B Current and Power ................................................ 1-13
Cutout and Insert Panel Sizes .............................................................. 1-17
Console Program Boot Sequence .......................................................... 2-5
MS630 Memory Module Versions ........................................................ 2-9
DEQNA CSR Address and Interrupt Vector ........................................ 3-5
DRVll CSR Address ........................................................................... 3-7
DRVll Interrupt Vector ...................................................................... 3-7
DLVJl CSR Address ............................................................................ 3-11
DLVJl Interrupt Vector ....................................................................... 3-12
DMVll Versions .................................................................................. 3-14
DMVll Interfaces ................................................................................ 3-14
DMVll CSR Address ........................................................................... 3-15
DMVll Interrupt Vector ..................................................................... 3-15
DMVll Switch Selectable Settings ...................................................... 3-16
DPVll CSR Address ............................................................................ 3-21
DPVll Interrupt Vector ...................................................................... 3-21
DRVII-J CSR Address ......................................................................... 3-25
DZQll CSR Address ............................................................................ 3-27
DZQll Interrupt Vector ...................................................................... 3-27
DZVl1 CSR Address............................................................................ 3-30
DZVll Interrupt Vector ...................................................................... 3-30
LPVll CSR Address ............................................................................ 3-32
LPVll Interrupt Vector....... ..................................................... ........... 3-33
RQDX2/RQDX3 CSR Address .............................................................. 3-36
Revision Level Switch Settings ............................................................ 3-41
Unit Number Settings .......................................................................... 3-42
M7546 Controller Module CSR Address .............................................. 3-42
Power Requirements, Bus Loads, I/O Inserts.............. ........................ 4-5
Address/Vector Worksheet.................... .... .................................... ....... 4-7
Floating CSR Addresses ....................................................................... 4-8
LED Status and Countdown Error Messages ....................................... 5-2
DEQNA Module LED Indications ......................................................... 5-7
RQDX2 Module LED Indications .......................................................... 5-8
TQK50 Module LED Indications......... ................................................. 5-9
BAI23-A FRUs .................................................................................... 6-1
Console Error Messages and Explanations ........................................... B-1

Introduction
This manual describes the MicroVAX II 630QB system. Housed in the BA123-A
enclosure, this system uses standard Q22-Bus options and mass storage devices.
Chapter 1 describes the BA123-A enclosure, including the backplane, power supply,
mass storage area, I/O distribution panel, and internal cabling.
Chapter 2 describes the MicroVAX II KA630-A CPU module, the CPU patch panel
insert, and MS630 memory module.
Chapter 3 describes the communications, mass storage, and backup devices currently available as system options. The chapter provides configuration tables, cabinet kit information, and a brief description of each device.
Chapter 4 provides configuration information required for system expansion. Examples of typical systems are shown.
Chapter S describes the MicroVAX II power-up self-test and corresponding countdown error messages. The customer version of the MicroVAX Maintenance System
and basic troubleshooting are also covered.
Chapter 6 lists the field replaceable units (FRUs) and provides appropriate removal
and replacement procedures.
Appendix A provides information on MicroVAX II console commands.
Appendix B lists the console error messages produced by the KA630-A CPU, along
with a brief explanation of each message.
CONVENTIONS

Lower case n represents multiple numbers, where a specific designation is unnecessary or cumbersome (for example, RDSn instead of RDSl, RDS2, RDS3). Similarly, a lowercase x represents multiple letters.

Introduction

NOTES, CAUTIONS, AND WARNINGS

Notes, cautions, and warnings appear throughout this manual and are defined as
follows. A note contains general information. A caution contains information to
prevent damage to equipment. A warning contains information to prevent personal
injury.
RELATED DOCUMENTS

The following is a list of related documents for the MicroVAX II systems.

KA630-A CPU Module User's Guide
MicroVAX System Maintenance Guide
DEQNA Ethernet User's Guide
DHVll Technical Manual
DLVll-] User's Guide
DMVll Synchronous Controller Technical Manual
DPVll Synchronous Interface User's Manual
DRVll-] Interface User's Manual
DZVll Asynchronous Multiplexer Technical Manual
RD52-D, -R Fixed Disk Drive Subsystem Owner's Manual
RD53-D, -R Fixed Disk Drive Subsystem Owner's Manual
RQDX2 Controller Module User's Guide
RQDX3 Controller Module User's Guide
RX50-AA Diskette Drive Subsystem Owner's Manual
TK50 Tape Drive Subsystem User's Guide
You can order these documents from:
Digital Equipment Corporation
Accessories and Supplies Group
P.O. Box CS2008
Nashua, NH 03061
Attention: Documentation Products

BK-KA630-UG
AZ-GM3AA-MN
EK-DEQNA-UG
EK-DHV11-TM
EK-DLVlJ-UG
EK-DMV11-TM
EK-DPV11-UG
EK-DRVlJ-UG
EK-DZV11-TM
EK-LEP03-0M
EK-LEP06-0M
EK-RQDX2-UG
EK-RQDX3-UG
EK-RX50A-MM
EK-LEP05-0M

BA123-A Enclosure
1.1

INTRODUCTION

The BAI23-A enclosure (Figure 1-1) is a floor stand unit for microcomputer systems. It can support a wide variety of hardware options. The air-cooled enclosure
is designed to operate in an open office environment. It includes the following
major components:
•

Enclosure frame

•

Backplane assembly

•

Control panel

•

Power supply

•

Mass storage area

•

I/O distribution panel

Figure 1-1

BAI23-A Enclosure

1-1

BA 123-A Enclosure

1.2

ENCLOSURE FRAME

The BA123-A enclosure frame houses the power supply and the backplane assembly. It also provides mounting space for five 13.3 cm (5.25 in) mass storage
devices. It is mounted on four shock-isolating casters and has the following
dimensions:
Height: 62.2 cm (24.5 in)
Width: 33.0 cm (13.0 in)
Depth: 70.0 cm (27.5 in)
The enclosure frame is covered by removable panels on the front, right, and left
sides (Figure 1-2).
There are three doors: a control panel door on the front, an I/O panel door at the
rear, and a card-cage door inside the right side panel.
NOTE
For panel removal procedures, see Section 6.2.

MR·1402B

Figure 1-2 BA123-A Removable Panels and Doors

1-2

SA 123-A Enclosure

Three fans in the BA123-A enclosure draw air into the top of the enclosure from
the following areas (Figure 1-3):
• Below the module card cage
• Behind the control panel
• Inside the power supply

Figure 1-3 Air Flow

1-3

BA 123-A Enclosure

A printed circuit (PC) board above the card cage contains two temperature sensors
(Figure 1-4). One sensor regulates the speed of the card-cage fan, keeping it at the
minimum level required to maintain a constant temperature within the card cage.
The other sensor shuts down the system at high temperature. The card-cage door
encloses the area surrounding the modules. Removal of this door triggers an interlock switch, which increases the speed of the card-cage fan to maximum. If the
proper temperature within the card cage cannot be maintained, even at maximum
fan speed, the over-temperature sensor causes the system to shut down. The system also shuts down if the card-cage fan fails.

Figure 1-4 Temperature Sensor PC Board

1-4

BA 123-A Enclosure
1.3

CONTROL PANEL

The control panel has six cutouts to provide space for control circuits. One cutout
is used for a CPU console board. The other five cutouts provide space for mass
storage console boards. Unused cutouts are covered with removable plates. Figure
1-5 shows the relationship between the cutouts and the mass storage shelves.

LEGEND:
1. DISK DRIVE 1
2. DISK DRIVE 2
3. DISK DRIVE 3

4. TAPE DRIVE
5. DISKETTE DRIVE

Figure 1-5 Mass Storage Shelves
1.3.1

Mass Storage Shelves

The front panel covers five shelves used for mounting 13.3 cm (5.25 in) mass
storage devices (Figure 1-5). The maximum recommended number of mass storage
devices is four. These should be installed with two in shelves 1 and 2 and two in
shelves 3, 4 or 5. Removable plates in front of shelves 3, 4 and 5 allow access to
removable mass storage devices.

1-5

BA 123-A Enclosure

1.3.2

CPU Console Board

The CPU console board (Figure 1-6) is attached to the back of the control panel. It
contains a DC OK indicator light, and two buttons that allow the user to halt or
restart the system. A ribbon cable connects the CPU console board to the backplane. This cable provides the connection between the CPU and the CPU console
board. The buttons and DC OK light provide the following functions:
• When the Halt button is depressed, the red LED in the Halt button lights. The
system then enters console I/O mode (Section 2.2.1), providing halts are enabled
by the switch on the CPU distribution panel at the rear of the system (Section
2.2.3).
NOTE
If halts are disabled at the rear of the system, the LED in the
Halt button still lights when the button is depressed, but the
system is not halted.

• When the DC OK light is ON, the system is receiving stable dc voltage from the
power supply.
• When the Restart button is depressed, the system boots.
There are two LEDs on the CPU console board. These can be seen by removing
the left side panel of the enclosure. If the DC OK light on the control panel is not
lit, these two LEDs indicate which regulator supply to the backplane has failed:
Left LED:
Right LED:

1-6

Regulator A
Regulator B

SA 123-A Enclosure

When a LED is ON, +5 Vdc to the backplane is OK. When the LEDs are OFF, a
regulator or connection to a regulator has failed.
NOTE
There should be at least one module in both odd- and evennumbered backplane slots to draw enough current to start each
regulator. See Section 1.6.

There is a DIP switch pack to the left of the LEDs that contains two switches.
Both switches are normally OFF and are unused in MicroVAX II systems.
RESTART/RUN

DC OK

HALT

LED

(REGULATOR A)

(REGULATOR 8)
MR-14187

Figure 1-6 CPU Console Board

1-7

SA 123-A Enclosure

1.4 SIGNAL DISTRIBUTION BOARD

The signal distribution board (M9058, Figure 1-7) is mounted in the bottom two
(C and D) rows of backplane slot 13.
Up to four fixed disk drives, or an RX50 diskette drive and up to two fixed disk
drives, can be connected to the signal distribution board (Figure 1-8). The signal
distribution board is connected by a 50-conductor ribbon cable to an RQDXn mass
storage controller module in the card cage. The signal distribution board is also
connected to the RD console boards behind the control panel by a 40-conductor
ribbon cable.
@

Figure 1-7 Signal Distribution Board

1-8

17-00867-01

NOTE: RODX2 AND RD52 ARE SHOWN. RODX3
AND/OR RD53 MAY ALSO BE USED.

Figure 1-8 Signal Distribution Board Cabling
cD

BA 123-A Enclosure

1.5 BACKPLANE

The BAI23-A has a 4-row by 13-s10t backplane that measures 27.9 X 19.9 cm
(11 X 7.85 in). The backplane implements the extended LSI-II bus (or Q22-Bus),
which uses 22-bit addressing.
The first 12 slots of the backplane provide space for dual- or quad-height modules
that are compatible with the Q22-Bus.
• A dual-height module has connectors that fit into two rows of a backplane slot.
Two dual-height modules can occupy one backplane slot.
NOTE
Dual-height modules in slots 5-11 and rows C and D of slot 12
require another dual-height module or an M9047 grant card in
the other two rows of the slot.

• A quad-height module has connectors that fit into all four rows of a backplane
slot. One quad-height module occupies one backplane slot.
Figure 1-9 shows the grant lines for the Q22-Bus interrupt and for direct memory
access (DMA). The C and D rows of slots 1-4 implement a separate MicroVAX II
local memory interconnect that is used to interface the system CPU and memory
modules.

1-10

BA 123-A Enclosure
FRONT OF
SYSTEM

SLOTS
7
6

REAR OF
SYSTEM

w
S

.... D

MR-14068

Figure 1-9 Backplane Grant Continuity
Four 120 ohm resistor packs between backplane slots 12 and 13 are used to
terminate the Q22-Bus. The thirteenth slot of the backplane provides space for two
dual-height modules (rows AB and CD). The Q22-Bus is not implemented in this
slot. The CD rows are used for the signal distribution board. The AB rows can be
used for a second signal distribution board. The thirteenth slot provides +5 Vdc,
+12 Vdc, ground, and a signal (DC OK) that indicates dc voltage from the power
supply is stable.
NOTE
This backplane is a "bounded" system. That is, additional backplanes cannot be connected to the system.

1-11

BA 123-A Enclosure

The backplane supports a maximum of 38 ac loads and 20 dc loads. The backplane
balances the load on each of the power supply's two regulators. Figure 1-10 shows
three 1 connectors on the backplane .
• 11 and 12 are 18-pin connectors that receive dc power and signals from two
independent regulators in the power supply. 11 is connected to Regulator A,
which supplies power to the odd-numbered slots. 12 is connected to Regulator B,
which supplies power to the even-numbered slots.
• 13 is a 10-pin connector that connects a cable to the CPU console board.

--==-

-- f ']

:---..

IW:

~,- -;:;

"- -

)

""'"

)

Figure 1-10 Backplane Connectors

1-12

SA 123-A Enclosure

The backplane has an eight-layer PC board, which is arranged as follows:
layer

1
2
3
4
5
6
7
8

signal
signal
+5 Vdc from Regulator A
ground
ground
+5 Vdc from Regulator B
signal
signal

Configuration rules for the backplane are listed in Chapter 4.

1.6 POWER SUPPLY
The power supply (Figure 1-11) is a 460 W unit consisting of two regulators. Each
regulator supplies power to one-half of the slots in the backplane (see Section 1.5)
and to mass storage devices inside the system.
The power supply provides protection against excess voltage and current, and
against temporary fluctuations in the ac supply. Table 1-1 lists the minimum and
maximum currents supplied by each regulator.

Table 1-1

Regulator A and B Current and Power

Regulator

Maximum
Power
(in watts)

Minimum

Maximum

Minimum

Maximum

230
230

4.5
4.5

36.0
36.0

0.0
0.0

7.0
7.0

Current at +5 Vde
(in amps)

Current at +12 Vde
(in amps)

1-13

BA 123-A Enclosure

NOTE
Total power used from each regulator must not exceed 230 w.
This means that maximum current at +5 Vdc and +12 Vdc cannot be drawn at the same time. See Figure 4-1, a configuration
worksheet, for further information.

--------

Figure 1-11 Power Supply
The power supply also has two separate +12 Vdc outputs that are independent of
the main 460 W output. These are used to drive the two fans that are external to
the power supply, and to provide power to the temperature sensor above the card
cage.

1-14

SA 123-A Enclosure

The power supply contains a connector at the back for remote control of power.
The input power cable is protected by a circuit breaker (Figure 1-12), There is an
International Electrical Commission (IEC) ac input connector for compatibility with
international power cables.
Two voltage ranges can be selected:
120 V:
240 V:

88-128 Vac
176-256 Vac

NOTE
In order to compensate for line cord voltage drop when the system is operating at maximum load, a minimum of 90 Vac (88-128
Vac setting) should be present at the outlet for low line
operation.

REMOTE
CONTROL
CONNECTOR

Figure 1-12 Circuit Breaker, Voltage Select Switch, Connectors (Rear View)

1-15

SA 123-A Enclosure

Figure 1-13 shows the electrical power distribution of the enclosure. The part
numbers of the power cables are also shown.

POWER SUPPLY

(SEE NOTE 1)

J11

-----

REGULATOR

A
17-00911-01

J8A

J9A

MASS STORAGE DEVICES
IN SHELVES 3, 4, AND 5

17-00865-01
BACKPLANE J1
(ODD NUMBERED SLOTS)

---REGULATOR

B
17-00870-01

J8B

J9B

-----

17-00865-01

MASS STORAGE DEVICES
IN SHELVES 1 AND 2
BACKPLANE J2
(EVEN NUMBERED SLOTS)

17-00863-01
CARD-CAGE FAN

J10
TEMPERATURE SENSOR
PC BOARD

17-00864-01

(SEE NOTE 2)

MASS STORAGE FAN

AC POWER CORD
NOTES: 1. (INCLUDES THE ON/OFF SWITCH) 17-00859-01
2. (INCLUDES INTERLOCK SWITCH) 17-00942-01
MR-14270

Figure 1-13 Electrical Distribution

1-16

BA 123-A Enclosure

1.7

I/O DISTRIBUTION PANEL

The I/O distribution panel is used for connecting the system to external devices.
The rear door provides access to the I/O distribution panel (Figure 1-14).
Each module that connects to an external device requires an internal cable, a filter
connector, and an insert panel. Together these three items are referred to as a
cabinet kit.
Filter connectors are mounted in the insert panels. The insert panels are then
mounted in cutouts in the I/O distribution panel, in the order shown in Figure 1-14.
The CPU I/O distribution panel insert is typically mounted in cutout A. Unused
cutouts are covered by removable plates.
NOTE
The phrase "type x filter connector" used in this manual refers
to an insert panel and to a filter connector that has been
mounted in the insert panel. This configuration is typical of what
is contained in a cabinet kit.

The I/O distribution panel has ten cutouts (Figure 1-14). Table 1-2 lists cutout and
corresponding insert panel sizes.

Table 1-2

Cutout and Insert Panel Sizes
Dimensions

Cutout/Insert Panel

(in mm)

(in inches)

Type A (4):
Cutout
Insert Panel

15 X 81
25 X 102

0.6 X 3.2
1.0 X 4.0

Type B (6):
Cutout
Insert Panel

57 X 81
64 X 84

2.25 X 3.2
2.5 X 3.3

1-17

BA 123-A Enclosure

TYPE

B _.,.

~
~

~PE

G
C!

DO
O:D
nOt]

A _ _:

~LJLJ.

MR-,4037

Figure 1-14

1-18

I/O Distribution Panel

BA 123-A Enclosure

In addition, a removable bracket between the bottom two type B cutouts allows for
the addition of three more type A cutouts by installing an adapter plate (DIGITAL
P.N. 74-27720-01).
Figure 1-15 shows typical type A and type B connectors and the adapter plate.

Figure 1-15 Filter Connectors and Adapter Plate

1-19

Base System
2.1

INTRODUCTION

A MicroVAX II base system includes a system enclosure, a KA630-A CPU module,
and a CPU patch panel insert. The CPU module, which includes its own local
memory, also supports one or two MS630 memory modules, adding up to 8 MByte
of local memory.
2.2

KA630-A CPU

Two KA630-A CPU versions are available for MicroVAX II systems, the KA630AA, with floating point, and the KA630-AB, without floating point. They include
the following features:
• Micro VAX processor chip, which provides a subset of the VAX instruction set
and data types, as well as full VAX memory management.
• 1 MByte of on-board memory, with support for up to two MS630 memory
modules.
• Floating Point Processor (FPP) chip (KA630-AA only), which provides a subset
of the VAX floating-point instruction set and data types. The FPP must be
factory installed (surface mounted). It is not available as a field-upgrade part.
• Console Serial Line Unit (SLU) with externally selectable baud rate. The console
SLU is accessed using four VAX Internal Processor Registers (IPRs).
• Interval timer, with 10 millisecond interrupts. Interrupts are enabled via an IPR.
• 64 KByte boot/diagnostic ROM, which provides power-up diagnostics, boot programs for standard devices, and a subset of the VAX console program.
• Q22-Bus map/interface, which provides Direct Memory Access (DMA) for all
local memory. The KA630-A fields Q22-Bus interrupt requests BIRQ7 through 4.
• Virtual memory space of four gigabytes (2**32).

2-1

Base System

The KA630-A supports the following VAX data types:
• Byte, word, longword, quadword
• Character string
• Variable length bit field
• F-1loating, <Lfloating and g-1loating (KA630-AA only)
The remaining VAX data types 'are supported through software emulation.
The KA630-A implements the following subset of the VAX instruction set:
• Integer
• Address
• Variable length bit field
• Control and procedure call
• Queue
• MOVC3/MOVC5
• Floating point (KA630-AA only)
The remaining VAX instructions, including floating point for the KA630-AB version, are supported through software emulation.
The KA630-A CPU communicates with mass storage and peripheral devices via the
Q22-Bus. The KA630-A communicates with MS630 memory modules through the
MicroVAX local memory interconnect in the CD rows of backplane slots 1 through
3, and through a cable between the CPU and the MS630 memory module.
The KA630-A (Figure 2-1) CPU contains three connectors:
• J1, for a cable connecting to an MS630 memory module.
• J2, for a cable to the configuration and display connector on the CPU patch
panel insert.
• J3, for a cable to the internal console SLU connector on the CPU patch panel
insert.

2-2

Base System

CAUTION
The KA630-A CPU module can only be installed in a slot that
contains the MicroVAX local memory interconnect. It is normally
installed in slot 1. It must not be installed in slots 4-12.
Static electricity can damage integrated circuits in modules and
mass storage devices. Always use a grounded wrist strap
(DIGITAL P.N. 29-11762-00) and grounded work surface when
accessing any internal part of a computer system.

D
D
D
D
Figure 2-1

D~e~E
D~7G"H

MicroVAX 32780

8YTE

MICROPROCESSOR

FLOATING POINT
UNIT (OPTIONAL)

KA630-A CPU Module

2-3

Base System

2.2.1

Console Program

The console program, resident in two ROM chips on the module, receives control
whenever the processor halts. For the KA630-A CPU, a halt means only that
processor control has passed to the console program, not that instruction execution
stops. The processor halts as a result of the following:
• System power-up or Restart button push
• External halt signal
• Execution of a halt instruction
• System error
At power-up, the system enters one of three power-up modes, which are set using
a switch on the CPU patch panel insert (Section 2.2.3). The console program then
determines console device type and console language.
If the console device supports the Multinational Character Set (MCS), then the

console program can be run in anyone of 11 languages. The language is chosen by
setting the switch on the CPU patch panel insert to the Language Inquiry position
and booting the system. A list of the 11 languages is then displayed and the user
enters the number of the appropriate language. Mter the language is chosen, the
switch on the CPU patch panel insert should be set to the Run position. The user
language is then recorded in battery backed-up RAM (see Section 2.2.3) so that
the preferred language is retained when the system is shut off.
If the console device does not support the MCS, no language prompt will occur and

the console program will default to English.
Next, the message "Performing normal system tests" is displayed. A countdown of
ongoing diagnostic tests is displayed on the console terminal, on the LED display
on the CPU patch panel insert, and on the CPU module's LEDs. These diagnostics
test the CPU, the memory system and the Q22-Bus interface. The diagnostic test
codes and corresponding tests, along with the FRUs most likely to be at fault, are
described in Table 5-1.
If the halt has been caused by a condition other than power-up, the console pro-

gram will branch directly to service the halt. The console program may branch to
diagnostics, to a restart sequence, to a primary bootstrap routine, or to console I/O
mode, depending on the nature of the halt.

2-4

Base System

If halts are enabled by the switch on the CPU patch panel insert (Section 2.2.3),
the console program will enter console I/O mode in response to any halt condition,
including system power-up. Console I/O mode allows the user to control the system
through the console terminal using a console command language (described in
Appendix A). The console I/O mode prompt is »>.
2.2.2

Primary Bootstrap Program (VMB)

If halts are disabled by the CPU patch panel switch, and the diagnostic tests are
completed successfully, the console program tries to load and start (bootstrap) an
operating system. To do so, it searches for a 64 Kbyte segment of correctly
functioning system memory. It then copies a primary bootstrap program, called
VMB, from the console program ROM into the base address of the segment plus
512 bytes. The console program then branches to the VMB, which attempts to
bootstrap an operating system from one of the devices listed in Table 2-1, in the
order shown.
Table 2-1

Console Program Boot Sequence

Sequence

Controller
Type

1
2
3
4

MSCP (Disk)
MSCP (Tape)
PROM
Ethernet
adapter

Controller

Device Name

RQDX
TQK50
MRV11
DEQNA

DUmn*
MUmn
PRmn
XQmn

* m = controller designator (A = first, B = second, etc.)
n = unit number on specified controller

When VMB determines that a controller is present, it searches in order of increasing unit number for a bootable unit with a removable volume. If it finds none, it
will repeat the search for a nonremovable volume.
In console mode the system can also be directed to boot a specific device. To do
so, use the boot command followed by the device name (for example, B DUAO).

2-5

Base System

When the operating system is booted, the processor no longer executes instructions
from the console program ROM. The processor is then in program I/O mode, in
which terminal interaction is handled by the operating system.
2.2.3

CPU Patch Panel Insert

The CPU patch panel insert (Figures 2-2 and 2-3) is mounted in the I/O distribution panel of the BA123-A enclosure.
The CPU patch panel insert contains the following:
• 3 switches
• 1 LED display
• 1 external connector
• 2 internal connectors
• 1 battery backup unit (BBU)
HALTS ENABLED
HALTS DISABLED

HEX
DISPLAY
NORMAL OPERATION
LANGUAGE INQUIRY MODE
LOOPBACK TEST MODE

300

CONNECTOR
FOR CONSOLE
TERMINAL

600
1200
2400
4800
9600
19200
38400

OUTSIDE

MR·'4503

Figure 2-2

2-6

CPU Patch Panel Insert (Front View)

Base System

BATTERY
BACKUP
UNIT

CPU MODULE
J2

CPU MODULE
J3

MA·14504

Figure 2-3

CPU Patch Panel Insert (Rear View)

Switches
The three switches on the CPU patch panel insert provide the following functions:

Halt Enable Switch - (2-position toggle)
Position

Function

Down
(dot outside circle)

Halts are disabled (factory setting). On power-up or
restart, system attempts to load software from one of
the boot devices at the completion of start-up
diagnostics.

Up
(dot inside circle)

Halts are enabled. On power-up or restart, system
enters console 1/0 mode at the completion of start-up
diagnostics and the console 1/0 mode prompt (»»
appears.

2-7

Base System

Power-Up Mode Select Switch - (3-position rotary)
Position

Function

o (arrow)

Run (factory setting). If the console terminal supports
the MCS, the user is prompted for language only if the
battery backup has failed. Full start-up diagnostics are
run.

1 (face)

Language inquiry. If the console terminal supports
MCS, the user is prompted for language on every
power-up and restart. Full start-up diagnostics are run.

2 (T in a circle)

Test. ROM programs run wrap-around serial line unit
(SLU) tests.

Baud Rate Select Switch - (8-position rotary)
Sets the baud rate of the console terminal serial line. The factory setting is 4800
baud. The baud rate of this switch must match the baud rate of the console
terminal.

LED Display
Displays numbers of on-going steps of power-up tests and booting procedures. If a
failure occurs, the LED display stops at a non-zero hex value. Table 5-1 lists the
tests corresponding to those values, and the FRUs most likely to be at fault when
the test fails.

Console SLU Connector - (external)
9-pin connector for a cable to the console terminal.

Console SLU Connector - (internal)
9-pin connector for a cable to connector J3 of the KA630-A CPU.

Configuration and Display Connector - (internal)
20-pin connector for a cable to connector J2 of the KA630-A CPU. Connects the
three switches and the LED display to the CPU.

Battery Backup Unit (BBU) - (internal)
Provides power to the time-of-year (TOY) clock chip on the KA630-A CPU when
the system is off. The code for the user's language is stored in RAM on this chip
and is lost if the BBU fails.
For further information, refer to the Micro VAX 630 CPU Module User's Guide
(EK-KA630-UG).
2-8

Base System

2.3

MS630 MEMORY MODULE

The MS630 memory module provides memory expansion for the KA630-A CPU
module. It is available in three versions (Table 2-2), all populated with 256 K RAM
chips.

Table 2-2

MS630 Memory Module Versions

Version

Size
(Mbyte)

Module
Height

Module
Number

MS630-AA
MS630-BA
MS630-BB

1
2
4

Dual
Quad
Quad

M7607-AA
M7608-AA
M7608-BA

One or two MS630 modules can be used in the MicroVAX system. The MS630
modules interface with the KA630-A CPU through the MicroVAX local memory
interconnect in the CD rows of slots 1 through 3 of the backplane, and through a
50-conductor cable. This cable is installed between J1 of the KA630-A CPU and
the corresponding J connector on one or both MS630 modules.
No jumper or switch configuration is required for MS630 modules.
CAUTION
MS630-BA and -BB modules can only be installed in slots 2 and
3 of the backplane. The MS630-AA module can only be installed
in the CD rows of slots 2 and 3.

2-9

System Options
3.1

INTRODUCTION

This chapter describes the options currently supported by the MicroVAX II 630QB
system. These options, as well as commonly used peripheral devices, are broken
down into the following categories:
• Communications
• Disk Storage
• Tape Storage
Each section includes configuration tables and a description of the cabinet kit
required for installation. Detailed documentation for each device is also listed.
NOTE
Current, power and bus loads for the following options are listed
in Table 4-1.
3.1.1

Ordering Options

Two items, a base module and a cabinet kit, must be ordered to get all the parts
necessary for an option. For example,
• DEQNA-M Base mooule
• CK-DEQNA-KA Cabinet kit

3-1

System Options

3.1.2

Module Configuration

Each module in a system has a device address, commonly referred to as a control
and status register (CSR) address, and an interrupt vector, which must be set when
the module is installed. The CSR address and interrupt vector are either fixed or
floating.
A fixed address or vector means that there is a standard location reserved in
memory for the address or vector of that particular module. Modules with fixed
addresses and vectors are usually shipped to match the standard locations. If two
modules of the same type are used, the address and vector settings of the second
module must be changed.
A floating address or vector is assigned a location within an octal range. The exact
address or vector within the range depends on what other modules are in the
system. The ranges are as follows:
• Floating CSR address: (1776)0010-(1776)3776
• Floating interrupt vector: (00000)300-(00000)774
Chapter 4 provides guidelines for determining floating CSR address and interrupt
vector settings.
The address and vector settings are usually configured by means of switches or
jumpers on the module. For example, the 22-bit setting for a CSR address of
17761540 is as follows:
A21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6
1
1 1 1 1 111 1 000 1 101

3-2

AA
7

AA
6

5 4 3 2
1 000

154

1
0

0
0

A
0

System Options

It is not necessary to change bits 21-13, because all possible fixed and floating
addresses begin with either 1777 or 1776. It is only necessary to be able to change
bits A12-A3 (or A2) to set the CSR addt;ess. A typical switch setting would only
show the following switches:
Switch
Setting ---t

A12 All AI0
0
0
0
~ 1\
6*
1

A9 A8
1
1
1\ t:L

A7
0

A6
1

A5
1
~ 6

A4
0

A3 -- Add. Bits
0
1\

* If A12 were set to a 1, this would be a 7.
Similarly, an interrupt vector of 320 is typically configured using only the following
bits:
Switch
Setting

---t

V8 V7 V6 V5 V4 V3
0 1 1 0 1 0
1\
66
6
2
3

Vector Bits

NOTE
The switch layout for different modules varies. The line below
the switch setting for each module shows the octal boundaries.

3-3

System Options

3.2

COMMUNICATIONS

3.2.1

DEQNA Ethernet Interface

Order:

DEQNA-M
CK-DEQNA-KA

Module Number:

M7504

Base module
Cabinet kit (type A filter connector
and internal cable)

The DEQNA is a dual-height module used to connect a Q-Bus system to a Local
Area Network (LAN) based on Ethernet. The Ethernet is a communications system
that allows data exchange between computers within a moderate distance (2.8 km,
or 1.74 mi). The DEQNA can transmit data at a rate of 1.2 Mbytes per second
through coaxial cable. For high Ethernet traffic, a second DEQNA may be installed.
The module is configured using three jumpers, WI through W3 (Figure 3-1).
Jumper WI determines the CSR address assignment. If two DEQNAs are to be
installed, install jumper WI of the second DEQNA onto the left and center pins
(module edge towards you). The DEQNA CSR addresses are fixed. Table 3-1
shows the CSR address and interrupt vector for two DEQNA modules.

IW3

.1W1

:W2

MR-14072

Figure 3-1

3-4

DEQNA Module Layout

System Options

Table 3-1

DEQNA CSR Address and Interrupt Vector

Module

CSR Address

Interrupt Vector

1
2

17774440
17774460

Floating

120

Jumper W2 is normally removed. This provides fair access to all Q22-Bus DMA
devices by causing the DEQNA to wait 5 microseconds before re-requesting the
bus. Jumper W3 is normally installed. When installed, it disables a sanity timer at
initialization. Figure 3-2 shows the internal cabling for the DEQNA.
For further information, refer to the DEQNA User's Guide (EK-DEQNA-UG).

Figure 3-2

DEQNA Internal Cabling

3-5

System Options

3.2.2

DHV11 Asynchronous Multiplexer (Eight Lines)

Order:

DHV11-M
CK-DHV11-AA

Module Number:

M3104

Base module
Cabinet kit (two type B filter connectors,
2 internal cables)

The DHV11 (Figure 3-3) is an asynchronous multiplexer that provides support for
up to eight serial lines for data communications. It is a quad-height module with the
following features:
• Full modem control
• DMA or silo output
• Silo input buffering
• Split speed
The DHV11 is compatible with the following modems:
• Digital modems: DF01, DF02, DF03, and DFl12
• Bell modems: 103, 113, 203C, 202D, and 212
The CSR address and interrupt vector of the module are set using two DIP
switches, E58 and E43 (Figure 3-3). The CSR address and interrupt vector are
floating. Tables 3-2 and 3-3 show the factory and common settings.

3-6

System Options

LOW CHANNELS (0-3)

HIGH CHANNELS (4-7)
DIAGNOSTIC LED

ADDRESS ADDRESS AND
SELECT
VECTOR SELECT

GG
BACKPLANE CONNECTORS

Figure 3-3

Table 3-2
CSR
Address

DHVll Module Layout

DHVII CSR Address
Al2 All AIO A9
E58
I
2
4
3

17760460
17760440
17760500

0
0

0
0
o6 0

0
0
0

1
1
o 1\ 1

0
0
0

1
0
1
0
1 1\ 0

0
0

A4
E43
I
1
0
0

Add. Bits
Switches
(Factory)

1 = Switch on

o = Switch off
Table 3-3

DHVII Interrupt Vector

V8
Setting E43-3

V7
4

V6
5

300
310

1
1

1
0
1/\ 0

0
0

V5
6

V4
7

V3
8

0
0

0
1

- Switch*
(Factory)

1 = Switch on

o = Switch off

* E43 switch 2 is not used.
3-7

System Options

NOTE
The actual address and vector of the DHV11 depend on what
other modules are installed in the system. Refer to Section 4.1.5
for guidelines for setting the address and vector.

Figure 3-4 shows the internal cabling for the DHV11. The internal cables should
be installed with the red stripe side connected to pin A (pin 1) of the DHV11
connectors. The other end of the cables should then be installed with the red stripe
aligned with the small arrow (pin 1) on the filter connector.
For further information, refer to the DHVll Technical Manual (EK-DHVII-TM).

Figure 3-4
3-8

DHV11 Internal Cabling

System Options

3.2.3

DHV11 Remote Distribution Cabinet Kit (CK-DHV11-VA)

The DHVll Remote Distribution Cabinet Kit (Figure 3-5) distributes eight dataonly serial lines from one type B filter connector using a remote distribution panel.
The DHVll Remote Distribution Cabinet Kit contains the following:

•
•

H3176

Bulkhead panel (fits into one type B I/O panel cutout)

H3175

Remote distribution panel (contains eight 25-pin D
subconnectors)

•

BC22H-I0

A 10 ft cable (connects the remote distribution panel to the
bulkhead panel)

•

BC05L-IK

Two 21-inch cables (connect the DHVll to the bulkhead
panel)

The H3176 bulkhead panel consists of two 40-pin headers and a fully filtered
female 25-pin D subconnector. It is connected to a DHVll by two BC05L-IK
cables, which supply eight pairs of data signals (transmit/receive) plus signal ground
for each pair.
The H3175 remote distribution panel distributes the eight pairs of data signals plus
signal ground for each pair to eight male 25-pin D subconnectors. The connection
to the H3176 is made by the BC22H-I0 cable. The H3175 has teardrop cutouts on
both ends, and can be mounted vertically or horizontally on a wall or floor. The
H3175 dimensions are 279 X 86 X 17.7 mm (11 X 3.4 X 0.7 in).

3-9

System Options

Figure 3-5 DHVII Remote Distribution Cabinet Kit

3-10

System Options

3.2.4

DLVJ1 Asynchronous Interface (Four Lines)

Order:

DLVJI-M
CK-DLVII-LA

Module Number:

M8043

Base module
Cabinet kit (type B filter connector,
internal cable)

The DLVJl (formerly DLVII-J) is a dual-height module that connects a Q-Bus to
up to four asynchronous serial lines (channels 0-3), for data communications. The
serial lines must conform to EIA and CCITT standards. The DLVJ1 acts as four
separate devices.
NOTE

The DLVJ1 is not supported by the MicroVMS operating system.

The DLVJl module is configured using wire-wrap pins (Figure 3-6). The CSR
addresses for two DLVJl modules are fixed. Table 3-4 lists the factory setting for
the CSR address of the first channel (CH-O). The address for each successive
channel is incremented by 10 (octal). For example, if CH-O is set at 17776500, the
CH-l CSR address will be 17776510, CH-2 will be 17776520, etc.
NOTE

The factory configuration of the DLVJ1 must be changed to be
used in a MicroVAX II system. C1 and C2 must be wire-wrapped
on pins 0 and x.

Table 3-4

DLVJI CSR Address

Module CH-O CSR
Number Address Al2 All AI0 A9 AS A7
1
2

17776500
17776540

I-x I-x
I-x t)-x

I-x
I-x

O-x I-x
O-x 1\ I-x

R
R

x-h O-x
x-h tJ-x

Add. Bits
(Factory)

R = No wire wrap on pins = 0
x-h = Wire wrap on pins x and h = 1
O-x = Wire wrap on pins 0 and x = 0
1-x = Wire wrap on pins 1 and x = 0

3-11

System Options

The interrupt vector is flo(iting and is configured using wire-wrap pins. The interrupt vector of channel 0 can only be set at xOO or x40. The interrupt vector of the
remaining channels is then 10 (octal) greater. For example, if the module is set at
300, the interrupt vector of CH-l is 310, CH-2 is 320, etc. The factory configuration is shown in Table 3-5.

Table 3-5
Settings

DLVJI Interrupt Vector
V8

300
340

x-h
x-h

x-h
R-x
x-h /\ I-x

Vector Bits
(Factory)

R = No wire wrap on pins = 0
x-h = Wire wrap on pins x and h = 1
I-x = Wire wrap on pins 1 and x = 1

NNMM

~z~z

N····

x ••••

M ••••

•

M ....

•

YWKVN

·iiiT~~
•
1'; L

Z 0 1 2 3
0000

0000

•

~%%%l
N

••••

00-~z~z

RlO~

5r:I; .1;.
Ir: Z~I!t;.1.;
Ir: .(')1.;.
I~r: IE .(,)1.;
I~r: ;t.;
tr: I• ~
0

EDSP

EDSP
MR-14798

Figure 3-6

3-12

DLVJl Module Layout

System Options

NOTE
The actual interrupt vector of the DLVJ1 depends on the other
modules in the system. Section 4.1.5 provides guidelines for
determining the interrupt vector.

Figure 3-7 shows the internal cable setup for the DLVJl.
For further information, refer to the DL Vl.1-] User's Guide (EK-DLVU-UG).

Figure 3-7

DLVJl Internal Cabling

3-13

System Options

3.2.5

DMV11 Synchronous Controller

The DMVll is a quad-height module that supports:
• Full-duplex or half-duplex operations
• DMA
• Point-to-point communications
• Multipoint communications
It is available in four system options. The option is determined by the interface
requirements of your system. Table 3-6 lists the four system options and their
corresponding upgrade components. Table 3-7 lists the interface for each system
option and the appropriate external cable.

Table 3-6

DMVl1 Versions

Order (Base Module

+ Cabinet Kit)
DMVII-M + CK-DMVll-AA
DMVII-M + CK-DMVII-BA
DMVII-N + CK-DMVII-CA
DMVII-M + CK-DMVII-FA

Table 3-7

Module
Number

Module
Connector

1/0 Panel
Insert Type

MB053
MB053
MB064
MB053

J2 (of 2)
Jl (of 2)
Jl (of 1)
J2 (of 2)

A
B
B

DMVII Interfaces

Order (Base Module

+ Cabinet Kit)

Interface

External
Cable

DMVII-M + CK-DMVll-AA
DMVII-M + CK-DMVII-BA
DMVII-N + CK-DMVII-CA
DMVII-M + CK-DMVII-FA

EIA RS232-C/CCITT V.2B
CCITT V.35/DDS
Integral modem
EIA RS423-A/CCITT V.24

BC22E or BC22F
BCI7E*
BC55S or BC55T
BC55D

* Cable included in the -BA cabinet kit.

3-14

System Options

The CSR address and interrupt vector of the DMVll are configured by means of
DIP switches (Figures 3-8 and 3-9). The CSR address and interrupt vector are
both floating. Tables 3-8 and 3-9 show the factory settings and other common
settings.

Table 3-8

CSR
Address
17760320
17760340
17760360

DMV11 CSR Address
A12 All A10 A9
E53 (M8053)
E58 (M8064)

A4 A3 - Add. Bits
E54 (M8053)
E59 (M8064)

0
0

o /\ 0

0
0
0
0
0 6 0

1
1
1

1
0
1
1
16, 1

1
0
1

0
0
06,

- Switches

(Factory)

1 = On = Closed
0= Off = Open

Table 3-9

DMV11 Interrupt Vector
V8
V7
E54 (M8053)
E59 (M8064)

Interrupt
Vector

300
310

0
0

1
1

0
0

0
1

- Vector Bits

- Switches

(Factory)

1 = On = Closed
0= Off = Open
NOTE

The actual settings depend on the other modules in the system.
Section 4.1.5 provides guidelines for setting the CSR address
and interrupt vector.

3-15

·System. Options

Another DIP switch on the DMV11 controls selectable features. Table 3-10 shows
the function of this. switch and a common setting.

Table 3-10

DMVII Switch Selectable Settings

EI07 (M8064)
EIOI (M8053)
10
9
8

off

On = function disabled = 0

Notes:
Switch 10 is unused on M8064. Switch 10 is in OFF position for EIA interface, ON
for V.3S.
Switch 9 must be OFF for integral modem (M8064) or when running above 19.2 K
baud.
Switches 8, 7 and 6 set mode- of operation when switch 1 is OFF.
Switch 5 OFF enables Rerpote Load Detect.
Switch 4 OFF enables Power On Boot.
Switch 3 OFF enables Auto Answer.
Switch 2 determines unit number for booting (ON = first DMV11, OFF = second
DMV11).
Switch 1 OFF enables switches 8, 7 and 6 to determine mode of operation. Switch
1 ON = mode of operation determined by software.
A DIP switch (El19 on M8064, El13 on M8053) determines the Digital Data
Communications Message Protocol (DDCMP) address register tributary/password.
This must· be set to a unique site address. For further information, refer to the
DMVll Synchronous Controller User's Guide (EK-DMV11-UG).
Figures 3-8 and 3-9 show the location of the DIP switches on the two DMV11
modules. Figures 3-10 and 3-11 show the internal cabling for the four DMV11
interfaces.
For further information, refer to the DMVll Synchronous Controller Technical
Manual (EK-DMV11-TM).

3-16

System Options

M8084

~.
[ili]

Figure 3-8 DMVll (M8053) Module Layout

M8053

rE64J

[Jill
M~"4075

Figure 3-9 DMVll (M8064) Module Layout

System Options

Figure 3-10 M8053 Internal Cabling

3-18

System Options

Figure 3-11

M8064 Internal Cabling

3-19

System Options

3.2.6

DPV11 Synchronous Interface

Order:

DPV11-M
CK-DPV11-AA

Module Number:

M8020

Base module
Cabinet kit (type A filter connector and
internal cable)

The DPV11 is a dual-height module that connects the Q-Bus to a modem, using a
synchronous serial line. The serial line conforms to the following RS-232-C, RS423-A, and RS-422-A EIA standards.
EIA compatibility is provided solely for use in local communications (timing and
data leads only). The DPV11 is intended for character-oriented protocols, such as
DDCMP, or communication protocols that are bit-oriented, such as Synchronous
Data-Link Control (SDLC).
The CSR address and interrupt vector of the DPV11 are configured by means of
jumpers (Figure 3-12).

.023
22\:)

21~ 20

W18

A 011
010

g~
28

121314151617
P2 000000
bW1

1
26

SHIPPED{
VECTOR

300

::~045

42 043
400 41
380039

SHIPPED
ADDRESS

17160100 {

360037
340 3_5
33
300031
W29

32~O

MR-14236

Figure 3-12

3-20

DPV11 Module Layout

System Options

The CSR address and interrupt yenor are both floating. Tables 3-11 and 3-12
show factory and common settings.

Table 3-11

DPV11 CSR Address

Setting

A12 All A10 A9 AS A7 A6 A5 A4 A3 +- Add. Bits
W31 W30 W36W33 W32 W39 W3S W37W34 W35 +- Pin

17760010
17760270
17760310

o 0 0 0
0
0
0
0
0
1
0000010111
01\0
0
01\0
1
11\0
0
1

(Factory)

1 = jumper inserted between pin Wxx and pin 29 (ground)

o = jumper removed
Table 3-12

DPV11 Interrupt Vector

Interrupt
Vector

VS
W34

V7
W42

V6
W41

V5
W40

V4
W44

V3
W45

300
310

0
0

1
1

0
0

0
1

++-

Vector Bits
Pin

(Factory)

1 = jumper inserted between pin Wxx and pin 46 (ground)

o = jumper removed
NOTE

The actual settings of the DPV11 depend on the other modules
in the system. Section 4.1.5 provides guidelines for setting the
CSR address and interrupt vector.

3-21

System Options

Figure 3-13 shows the internal cabling of the DPV11. The DPV11 cabinet kit
should be installed in cutout J or I of the I/O distribution panel (see Figure 1-14).
The cable must be installed from the inside of the I/O distribution panel, as follows:
1. Unscrew the filter connector from the black cable terminator.
2. Connect the cable to the DPV11 module.
3. Place the black cable terminator inside the J or I cutout.
4. Reconnect the filter connector to the cable terminator from the outside of the
I/O distribution panel.
5. Tighten the two screws that secure the cable terminator to the filter connector
from the inside of the I/O distribution panel.
6. Tighten the two screws that secure the filter connector to the I/O panel from
the outside of the I/O distribution panel.

3-22

System Options

Figure 3-13 DPV11 Internal Cabling

For further information, refer to the DPVll Synchronous Interface User's Manual
(EK-DPV11-UG).

3-23

System Options

3.2.7

DRV11-J High Density Parallel Interface (Four Lines)

Order:

DRVll-]
CK-DRVlJ-KB

Module Number:

Base module
Cabinet kit (two type A filter connectors,
two internal cables)

M8049

The DRVll·] (Figure 3-14) is a dual-height module that connects a Q-Bus to 64
1/0 lines. These lines are organized as four I6-bit ports, A through D. Data line
direction is selectable under program control for each 16-bit port.

Jl
E10

XE9

W10

OWll

"----y----J
ADDRESS SELECTION
MR·14797

Figure 3-14

DRVll-] Module Layout

The interrupt vector is set under program control, eliminating the need for jumperdefined vectors. The CSR address of the module is· fixed and is set with jumpers
WI through W9. Table 3-13 lists the factory configuration.

3-24

System Options

Table 3-13

DRVll-J CSR Address

Starting
Module Address
1
2

17764160
17764140

A12 All AlO A9 A8 A7 A6 A5 A4 - Add. Bits
WI W2 W3 W4 W5 W6 W7 W8 W9 - Jumpers

o 1\ 1

o
o

(Factory)

1 = Installed

o = Removed
Figure 3-15 shows the internal cabling for the DRV11-].
For further information, refer to the DRV11-] Interface User's Manual
(EK-DRVl1-UG).

Figure 3-15 DRV11-] Internal Cabling
3-25

System Options

3.2.8

DZQ11 Asynchronous Multiplexer (Four Lines)

Order:

DZQ11-M
CK-DZQ11-DA

Module Number:

M3106

Base module
Cabinet kit (type B filter connector,
internal cable)

The DZQ11 is a dual-height module that connects the Q22-Bus to up to four
asynchronous serial lines. It conforms to the RS-232-C and RS-423-A interface
standards. The DZQ11 permits dial-up (auto-answer) operation with modems using
full-duplex operations such as Bell models 103, 113, 212 or equivalent.
The CSR address and interrupt vector of the module are set using two DIP
switches, E28 and E13 (Figure 3-16). The CSR and interrupt vector are floating.
Tables 3-14 and 3-15 show the factory and common settings.

VECTOR
SWITCH PACK

ADDRESS

SWITCHPA~

o
MR-15244

Figure 3-16

3-26

DZQ11 Module Layout

System Options

Table 3-14

DZQ11 CSR Address

CSR
Address

A12 All A10 A9 A8 A7 A6 A5 A4 A3
E28
1
2
4
10
7
8
9
5
3
6

17760010
17760100

0
0
0 6 0

0
0

0
0
0 6 0

0
0

1
06

0
0
16 0

0
0

Switches

Switches
(Factory)

o = Switch open
1 = Switch closed

DZQ11 Interrupt Vector

Table 3-15

V8 V7
E13
1
2

Interrupt
Vector

300
310

0
0

1
0
1 1\ 0

0
0

0
1

1
1

(Factory)

o = Switch open
1 = Switch closed

Notes:
Switch 7 of the E13 DIP switch is not used.
For normal operation switch 8 must be ON and switches 9 and 10 must be OFF.

3-27

System Options

Figure 3-17 shows the internal cabling for the DZQ11.
For further information, refer to the DZQll Asynchronous Multiplexer User's
Guide (EK-DZQ11-UG).

MR·t5583

Figure 3-17

3-28

DZQ11 Internal Cabling

System Options

3.2.9

DZV11 Asynchronous Multiplexer (Eight Lines)

Order:

DZV11-M
CK-DZV11-DA

Module Number:

M7957

Base module
Cabinet kit (type B filter connector,
internal cable)

The DZV11 (Figure 3-18) is a quad-height module that connects a Q22-Bus to up
to four asynchronous serial lines. It conforms to the RS-232-C interface standard,
and permits dial-up (auto-answer) operation with modems using full-duplex
operations.

C
W8T~m

I~
W1
W4

~W2
W3

W12

b TrT\

W13

W14

A12

W10

W11

Figure 3-18

W15 W16

WOOoooooom

w~ooonnm

ADDRESS SWITCHES

VECTOR
SWITCHES

DZV11 Module Layout

3-29

System Options

The DZV11 is configured using 16 jumpers and 2 DIP switches. The CSR address
and interrupt vector of the DZV11 are both floating. Tables 3-16 and 3-17 list the
factory settings.

Table 3-16
CRS
Address
17760010
17760100

DZV11 CSR Address
A12 All A10 A9 A8 A7 A6 A5 A4 A3
E30
1
2
4
8
9
10
3
5
6
7
0

0
0
o 1\

0
0

0
0
06 0

0
0
0
16

0
0

1
0

- Add. Bits
- Switches
(Factory)

1 = Switch closed

o = Switch open
Table 3-17

DZV11 Interrupt Vector
V8
E2
1

- Vector Bits

Interrupt
Vector

- Switches

300
310

0
0

1
1

1
1 6

0
0

0
1

(Factory)

1 = Switch closed
o = Switch open

NOTE

The actual settings of the DZV11 depend on the other modules
in the system. Section 4.1.5 provides guidelines for setting the
CSR address and interrupt vector.

3-30

System Options

Figure 3-19 shows the internal cabling layout.
For further information, refer to the DZVll Asynchronous Multiplexer Technical
Manual (EK-DZV11-TM).

Figure 3-19

DZV11 Internal Cabling

3-31

System Options

3.2.10

LPV11 Interface Module (For LP25 System Printer)

LPV11-AD

Order:

LP25-DA printer and LPV11 controller for
64/96 US character set
Cabinet kit (type A filter connector and
internal cable)

CK-LPV1A-KB
Module Number: M8027

The LPV11 is a dual-height module that controls the flow of data between the
Q22-Bus and a line printer. It is configured using jumpers (Figure 3-20).
W13

Wll

~V2

~V3

~V4
~V5
V6~

Wl
Dn=:J

~V6

V~V8
W14

'-F~\

F-\ V7
W7

W3~~/W'
A4

'~4

W4~5o-tK> A5

W8
~c::::IlK>

o-A6-o

K>A7

0------0

0- A8-o

o-A9-o
<>Al0oO
<>AlloO
oA12<>

NOTE:
0= WIRE - WRAP PIN.

MR·14235

Figure 3-20 LPV11 Module Layout
The CSR address and interrupt are both fixed. Tables 3-18 and 3-19 show the
factory configuration. Figure 3-21 shows the internal cabling setup.

Table 3-18

LPVll CSR Address

CSR
Address

A12 All AlO A9 A8 A7 A6 A5 A4 A3

17777514

1 1\ 1

o = Installed
1 = Removed

3-32

Add. Bits
(Jumpers)
(Factory)

System Options

Table 3-19

LPVll Interrupt Vector

Interrupt
Vector

V8
W14

V7
V7

V6
W13

200

V5
W12

6 0

V4
Wll

V3
WI0

()

V2
W9

- Vector Bits
- Jumper

(Factory)

o = Installed
1 = Removed

MA-15587

Figure 3-21

LPV11 Internal Cabling

3-33

System Options

3.3

DISK STORAGE

3.3.1

RQDX2, RQDX3 Disk Controllers

Order:

RQDXn-BA
(n = 2 or 3)

Module Number:

M8639-YB (RQDX2)
M7555 (RQDX3)

Controller kit for BA123-A enclosure

An RQDXn-BA kit includes the following:

1. RQDXn: Controller module
2. M9058: Signal distribution board
3. 17-00861-01: 50-pin cable, RQDX to M9058
4. 17-00862-01: 40-pin cable, M9058 to four RD console boards
RQDX2 and RQDX3 are intelligent controllers with on-board microprocessors, used
to interface fixed disk drives and diskette drives to the Q22-Bus. Data is transferred using DMA. Programs in the host system communicate with the controller
and drives using the Mass Storage Control Protocol (MSCP).
The RQDX2 and RQDX3 can control a maximum of four drives. Each fixed disk
counts as one drive. Each RX50 counts as two drives. Figure 3-22 shows the
jumper and LED locations for the RQDX2, while Figure 3-23 shows the jumper and
LED locations for the RQDX3.

3-34

System Options

LUN7 ::::: ::: 0

0::0

A12

: :1: ::11:1:

Figure 3-22

RQDX2 Module Layout

(COMPONENT SIDE)

RQDX3 CONTROLLER
(M7555)

W02
W04

o 0
0-0
o 0

W01

0-0
0-0

W03

0-0

W11

W05

o 0
o 0 W07
W08 o 0
0-0 WOg
W10 o 0
W06

W23
LED

10 0

0-01

4 3 2 1

W12

[]W14

W13

~ ~ W15 0
W17

Figure 3-23

o
0

0
0
0

W16

RQDX3 Module Layout

MR·16713

3-35

System Options

The CSR address of the first MSCP controller is fixed. If a second controller is
installed, its CSR address is floating. Table 3-20 lists the factory setting and common settings for a second MSCP controller.

Table 3-20

RQDX2/RQDX3 CSR Address

Starting
Address

Al2 All AIO A9 AS A7 A6 A5 A4 A3 A2 +- Add. Bits
(Jumpers)

17772150

000

1 0
1 1
1,,1

1
0
1

1 1
1 1
11\1

(Factory)

Possible settings for a second controller:
17760334
17760354
17760374

0
0
0
0
0 ,,0

0
0
0

0 0
0 0
01\0

1
1
1

1 = Installed
0= Removed

The interrupt vector for the RQDX2 and RQDX3 controllers is set under program
control. The first controller is assigned a fixed interrupt vector of 154. If a second
one is installed, its interrupt vector is floating.
NOTE

RQDX2 and RQOX3 controllers are MSCP devices. The first
MSCP device in a system is assigned a CSR address of
17772150. If more than one MSCP device is installed, the CSR
address of the second device must be set within the floating
range. See Section 4.1.5 to determine the floating CSR address.
In MicroVAX II systems, Logical Unit Number (LUN) jumpers
should not be installed on the RQOX2 or RQOX3 modules.

For further information, refer to the RQDX2 Controller Module User's Guide (EKRQDX2-UG), or the RQDX3 Controller Module User's Guide (EK-RQDX3-UG).

3-36

System Options

3.3.2

RD52, RD53 Disk Drives

Order:

RD5nA-BA
(n = 2 or 3)

Disk kit

An RD5nA-BA kit includes the following:
1. RD5n-A: Disk drive
2. 17-00282-01: 20-pin cable to signal distribution board
3. 17-00286-01: 34-pin cable to signal distribution board
4. 70-22393-01: Control panel assembly
The RD52 and RD53 are fixed disk drives with formatted storage capacities of 31
and 71 Mbytes, respectively.
In addition to the cables listed above, a cable from the power supply must be
connected to each RD drive in the system (see Section 1.6).
3.3.2.1 Factory Configuration - The RD52 read/write printed circuit board
(PCB) has five pairs of drive select pins (Figure 3-24). One (anyone) of the four
pairs of pins on the left must be connected with a jumper. The RD53 read/write
PCB has four drive select switches at the rear of the drive's read/write board. One
(anyone) of the four switches must be depressed.

In the BA123-A enclosure, a drive is selected by the position of its signal cables in
the M9058 signal distribution board, not by the drive select pins. See Figure 1-8
for the correct cabling.
3.3.2.2 Disk Formatting - If an RD52 or RD53 drive is added to the system, it
must be formatted. The formatting utility is available in the maintenance version of
the Micro VAX II Diagnostics Kit.

For further information, refer to RD52-D, -R Fixed Disk Drive Subsystem Owner's
Manual (EK-LEP04-0M-001) and llC23-UE/llC23-UC RD52 Installation Guide
(EK-RD52U-IN).

3-37

System Options

FRONT OF DRIVE

I:
DS1

DS3

DS2

DS4

REAR OF DRIVE

•

Figure 3-24

3-38

FRONT
OF
DRIVE

RD52 Disk Drive and Shunt Jumper

System Options
3.3.3

RX50 Diskette Drive

Order:

RX50A-BA

Diskette kit

The RX50A-BA kit includes the following:
1. RX50-AA: Diskette drive
2. 17-00867-01: 34-pin cable, RX50 to signal distribution board
The RX50 (Figure 3-25) is a random access, dual-diskette storage device that uses
two single-sided 13.3 cm (5.25 in) RX50K diskettes. It has a total formatted capacity of 818 Kbytes (409 per diskette). The RX50 has two access doors and slots for
diskette insertion. A light next to each slot indicates when the system is reading or
writing to the diskette in that slot.
The RX50 is installed in mass storage shelf 5. A cable connects the RX50 to the
power supply.
NOTE
Only one RX50 drive can be used with one RQDX2 controller
module.

Figure 3-25

RX50 Diskette Drive

3-39

System Options

3.4

TAPE STORAGE

3.4.1

Order:

TK50 Tape Drive Subsystem

TK50-AA
TQK50-BA

Tape drive and cartridge
Controller module and signal cable

The TK50 is a streaming tape drive subsystem that provides 95 Mbytes of backup
data storage. The media used are magnetic tape cartridges.
The TK50 tape drive subsystem (Figure 3-26) consists of two major components:
• TK50-AA tape drive and cartridge, installed in enclosure shelf 4
• TQK50-BA (M7546) controller module and 76.2 cm (30 in) signal cable

Figure 3-26 TK50 Tape Drive Subsystem
The M7546 controller module provides the interface between the TK50-AA tape
drive and the Q22-Bus. The signal cable connects the module to the drive.
Figure 3-27 shows the location of two DIP switches on the controller module,
which are used to configure the following:
• Hardware revision level (set at the factory)
• Unit number

3-40

System Options

g+--LEDS

UNIT
NUMBER
HARDWARE
~
REViSiON.........
LEVEL

wIIIIIIII

'11111111111

ADDRESS

JUMPERS~ •••••••••••

...........

MR·14083

Figure 3-27

M7546 Module Layout

The' hardware revision level DIP switch is set to match the module revision level
stamped on the back of the module. The eight switches in this DIP switch
represent a binary weighted value, as shown in Table 3-21.

Table 3-21

Revision Level Switch Settings

Revision
Level

Switches

3-8*

1 (A)
2 (B)

3 (C)

0
0
1
1

0-0
0-0
0-0
0-0

etc.
0= Open
1 = Closed
* Switch 8 is nearest module edge.

3-41

System Options

The unit number may be specified using the unit number DIP switch as shown in
Table 3-22. It is not necessary to change this switch from the factory setting if the
MicroVMS operating system is installed.

Table 3-22

Unit Number Settings

Unit
Number

Switches
I
2
3-8*

0
1
0
1

1
2

0
0
1
1

0-0 (Factory)
0-0
0-0
0-0

etc.
0= Open
1 = Closed
* Switch 8 is nearest module edge.

The CSR address for the first M7546 controller module is fixed at 17774500 and
is set using jumpers (Figure 3-27). If an additional M7546 controller module is
installed, its CSR address is floating (see Table 4-3). Table 3-23 lists the factory
setting for the first M7546 and possible settings for a second M7546.

Table 3-23

M7546 Controller Module CSR Address

CSR
Address

Al2 All AIO A9 A8 A7 A6 A5 A4 A3 A2 - Add. Bits
(Jumpers) *

17774500

010

(Factory)

Common settings for a second M7546 controller:
17760404
17760444

o /\ 0

o
o

1 = Jumper installed

o = Jumper removed

* A2 is the jumper nearest the module edge.
The interrupt vector is fixed at 260 for the first and is floating for a second
M7546 controller. The interrupt vector is set under program control.
For further information, refer to the TK50 Tape Drive Subsystem Owner's Manual
(EK-LEP05-0M).

3-42

Configuration
4.1

CONFIGURATION RULES

There are several factors to consider when configuring a Micro VAX system in a
BA123-A enclosure:
• Module physical priority
• Backplane and I/O distribution panel expansion space
• Power requirements
• Module CSR addresses and interrupt vectors
4.1.1

Module Physical Priority

The order in which options are placed in the backplane affects system performance.
Modules should be installed according to the following rules.
1. The KA630-A CPU is installed in slot 1.

2. MS630-B memory modules are installed in slots 2 and 3.
3. The MS630-AA memory module must be placed in the CD rows of slot 2 or 3.
4. With the exception of the MS630-AA memory module, dual-height modules
installed in slots 2-4 must be placed in the AB rows. No grant continuity card is
necessary in the CD rows.
NOTE
If slots 2 and 3 (or slot 3) are not used for MS630 memory modules, and are not required for Q22-Bus options, it is recommended that they be reserved for future memory expansion with
M9047 grant continuity cards placed in the AB rows.

5. Dual-height modules installed in slots 5-12 can be located in either the AB or
CD rows. The opposite rows must contain either another dual-height module or
an M9047 grant continuity card.
4-1

Configuration

The following list shows the recommended sequence of modules:

1. CPU
KA630-A
2. Local Memory Modules (no more than two):
MS630-BB
MS630-BA
MS630-AA
3. Q22-Bus Memory Modules
MRVll

MB047

4. Synchronous Communications Modules - No Silos
DPVl1

MB020

5. General Purpose I/O Ports
DRVI1-J MB049
6. Line Printer Interface
LPVll

MB027

7. Asynchronous Communications Module - No Silos
DLVJl

MB043

B. Asynchronous Communications Modules - With Silos

DZVll
DZQll

M7957
M3106

9. Synchronous Communications Modules - DMA
DMVI1-M MB053
DMVI1-N MB064
10. Ethernet Communications Module
DEQNA

M7504

11. Asynchronous Communications Module - With Silos/DMA
DRVl1

4-2

M3104

Config uration

12. Streaming Tape Controller (Smart DMA)
TQK50

M7546

13. Mass Storage Controller (Smart DMA)
RQDX3
RQDX2

M7555
MS639-YB

The relative priority of these options is based on their preferred interrupt and
DMA priority. The location of the MRV11 has no effect on interrupt and DMA
priorities; its location may be changed to facilitate cable distribution, etc.
4.1.2

Expansion Space

4.1.2.1 Backplane - There are twelve backplane slots available for Q22-Bus
compatible modules. The configuration examples in this chapter show the slots
occupied by modules and the number of open slots that remain.
4.1.2.2 I/O Distribution Panel Insert Space - There are four type A (1 X 4)
and six type B (2 X 3) cutouts available for mounting I/O distribution panel inserts
on the back panel. The bottom two type B cutouts can be converted to provide
three additional type A cutouts. Table 4-1 lists the type of inserts used for each
module. The configuration worksheet (Figure 4-1) tracks inserts used.
4.1.3

Power Requirement

The configuration worksheet (Figure 4-1) is used to keep track of current at +5 V
and +12 V, and power. The total current drawn and power used by system modules and mass storage devices in the enclosure must not exceed the following limits
for each regulator:
Current:

at +5 Vdc = 36 A
+12 Vdc = 7 A

Power:

230 W from each regulator

4-3

Configuration
ADD THESE COLUMNS

I/O INSERTS
(2 X 3) (1 X 4)
SLOT

4*·

1 AB
CD t - - - 2 AB
CD t - - - 3 AS
CD
4 AS t - - - CD
5 AS t - - - CD t - - - 6 AS
CD
t---7 AS
CDt--_ _

8 AS
CD
1---9 AS
CD t - - - 10 AS
CD
11 AB t - - - CD
12 AS t - - - CD
13 AS~~CD
MASS
SHELF

5*
4

3
2
1

TOTAL THESE
COLUMNS:
MUST NOT
EXCEED:

36A

230W

36A

230W

*RECOMMENDED FOUR DRIVES MAXIMUM - TWO IN SHELVES 1 AND 2. WI/O IN 3. 4. OR 5.
··IF MORE THAN FOUR 1 X 4 I/O PANELS ARE REQUIRED. AN ADAPTER TEMPLATE MAY BE USED.
MR·15928

Figure 4-1

4-4

Configuration Worksheet

Configuration

Table 4-1 lists the current drawn by the Q22-Bus options.

Table 4-1

Power Requirements, Bus Loads, I/O Inserts
Current
(in amps)

Option

Module

KA630-AA
KA630-AB
MS630-AA
MS630-BA
MS630-BB
MRVll-AA
DPVII-DP
DRVI1-JP
LPV11-XP
DLVJ1-LP
DZV11-DP
DZQ11
DMVI1-AP
DMV11-BP
DMVI1-CP
DMV11-FP
DHVI1-AP
DEQNA-KP
RLV12-AP
TQK50
RQDX2
RQDX3
RX50-AA
RD51-A
RD52-A
RD53-A
TK50-AA

M7606
M7606
M7607
M760B
M760B
M7942
MB020
MB049
MB027
MB043
M7957
M3106
MB053-MA
MB053-MA
MB064-MA
MB053-MA
M3104
M7504
MB061
M7546
MB639-YB
M7555

Power
+5 V +12 V (in watts)
6.2
5.9
1.0
1.3
loB
2.B
1.2
1.8
O.B
1.0
1.2
1.0
3.4
3.4
3.4
3.4
4.5
3.5
5.0
2.9
6.4
2.4B
0.B5
1.0
1.0
0.9
1.35

0.14
0.14
0.0
0.0
0.0
0.0
0.3
0.0
0.0
0.25
0.39
0.36
0.4
0.4
0.4
0.3B
0.55
0.5
0.10
0.0
0.1
.06
loB
1.6
2.5
2.5
2.4

32.7
31.1
5.0
6.5
9.0
14.0
9.6
9.0
4.0
B.O
10.7
9.32
21.B
21.B
21.B
21.56
29.1
23.5
26.2
14.5
33.2
13.12
25.9
24.2
35.0
34.5
33.55

Bus Loads I/O Inserts
A = 1 X 4
ae de
B =2 X 3
2.7 1.0
2.7 1.0

loB
1.0
2.0
1.4
1.0
3.9
1.5
2.0
2.0
2.0
2.0
2.9
2.B
2.7
2.0
2.0
1.0

1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.5
0.5
1.0
1.0
1.0
1.0

B
B

A
A (2)
A
B
B
B
B
A
B
B
B (2)
A
A

4-5

Configuration
4.1.4

Bus Loads

Bus loads must not exceed 38 ac or 20 dc. These limits are not exceeded using
standard Q22-Bus options, but bus loads for each option are included in Table 4-1
in case a nonstandard module is installed. In such a case, the total bus loads of
installed modules should be checked to be sure the total does not exceed these
limits.
4.1.5

Module CSR Addresses and Interrupt Vectors

Modules must be set to the correct CSR address and interrupt vector. Use Table
4-2 to determine the correct settings. The following rules must be observed:
1. Check off all the devices that will be installed in the system.

2. If there is an F in the vector column, the device has a floating interrupt vector.
Assign a vector to each device checked, starting at (octal) 300 and continuing as
follows:
DLVJl

(increment of 40 to next device)

DRV11

(increments of 10 for subsequent devices)

DZV/Q
DPV11
DMVl1
2nd MSCP

(first is fixed at 154)

2nd TQK50

(first is fixed at 260)

DHV11
2nd DEQNA (first is fixed at 120)
For example, from the list of devices above, systems containing the following
modules would be assigned as shown:

Example 1
DLVJ1
DZV11
DMVl1
2nd MSCP
DRV11

4-6

300
340
350
360
370

Example 2
DZQl1
2nd MSCP
DHV11
2nd DEQNA

300
310
320
330

Configuration

The floating vector of a 2nd MSCP or TQK50 is program-set, not configured
using jumpers or switches. If there is a second MSCP or TQK50 in your system,
you must still determine what the vector is, because it will determine the vector
of devices after it.
3. If there is an F in the address column, the device has a floating CSR address.
Use Table 4-3 to determine the correct addresses for these devices. If a module
has a floating vector and CSR address, additional modules of the same type will
also have a floating vector and CSR address.

Table 4-2

Address I Vector Worksheet

Option

Module

KA630-A
MS630-A
DPV11
DRV11-JP
DRV11-JP
LPV11
DLVJ1
DLVJ1
DZV11
DZQ11
DHV11
DEQNA
DMV11
DMV11-CP
TQK50
RQDX2
RQDX3

M7606
M760x
M8020
M8049
M8049
M8027
M8043
M8043
M7957
M3106
M3104
M7504
M8053
M8064
M7546
M8639
M7555

Unit
No.

1
1
2
1
1
2
1
1
1
1
1
1
1
1
1

Check
if in
System

Vector

F
F
F
200

F*
F
F
F
F

CSR
Address
(N = 177)

F
N64120
N64140
N77514
N76500
N76510

F
F
F

120

N74440

F
F

260
154
154

N74500
N72150
N72150

* The DLVj1 vector can only be configured at 300, 340, 400, 440 etc. If the first available
floating vector is 310, 320, or 330, the DLVJl should be set to 340 and the next device
set to 400.

4-7

Configuration

Table 4-3 lists the floating CSR addresses for common combinations of devices
requiring configuration. These settings are only valid for the devices listed. They
may change if other devices with floating CSR addresses are installed.
Table 4-3
Device
DZQ/V 1
DZQ/V 2
DZQ/V 3
DPVl1
DMV11
2nd MSCP
2nd TK50
DHV111
DHV112

Floating CSR Addresses
Substitute the Numbers Below for the nnn in 17760nnn
100
110*
120*
270*

270*

404*
440
460

334
444*
500
520

270*
320
354*
444*
500
520

100
110*
310*
354*

444*
500
520

500
520

100
110
120
330*
374
504*
540

100
110*
310*
340
374
504*
540

100
110
120
330*
360
414*
504

100
110*
310*
340
444*
500
520

* Device may be installed or not. Go DOWN through the columns in the table to find the
column that matches your configuration. Any device added to or removed from the list
does not affect the addresses of devices above it.
Example 1:
1 DHVl1 only: 17760440
(derived from the first column)
Exainple 2:

DZQ11: 17760100
DPV11: 17760310
DHV11: 17760500
(derived from the fifth column)

4·8

Configuration
4.2

CONFIGURATION EXAMPLES

The BA123-A enclosure can be used in a variety of configurations. Figure 4-2
shows possible module utilizations for MicroVAX II systems.
NOTE
Refer to Figure 1-9 to review the bus grant continuity before
configuring a system.

POSSIBLE MODULE
UTI LlZATIONS
FOR SLOT 4
ARE AS FOLLOWS:

THE MODULE

~6kL\;fhT~~~T

POSSIBLE MODULE UTI LlZATIONS
FOR SLOTS 5-12 ARE AS FOLLOWS:

E
Q

w
I

-,0

~t
00

-,0

<ti=

(!)

-'0

C
to

0
Ol

(!)

-,0

(!)

>I-

:::>

I-

cb
0

t
0

~
2

t
0

..J
:::>
0

.....

:::>a.
00

t
0

w
I

~
Ol

ffi
0

(!)

POSSIBLE MODULE UTILIZATIONS
FOR SLOT 2 AND 3 ARE AS FOLLOWS:

THE MODULE
UTILIZATION
FOR THE FI RST
SLOT IS AS
FOLLOWS:

:::>

X
X

~
~

:::>

0
D

2-3

5-12

Figure 4-2

Module Utilizations

4-9

Configuration

Figure 4-3 shows the backplane setup for a base system that can be expanded at a
later time. It includes the following features:
• 2 Mbytes of main memory
• 1 RD52 fixed disk drive, providing 31 Mbytes of mass storage
• 1 RX50 dual-diskette drive for system loading and backup
• 1 eight-line asynchronous multiplexer, providing ports for 8 serial devices
Figure 4-4 shows the expandability of a MicroVAX II system in the BA123-A
enclosure. It includes the following features:
• 9 Mbytes of main memory
• 2 RD53 fixed disk drives, providing 142 Mbytes of mass storage
• 2 eight-line asynchronous multiplexers, providing ports for 16 serial devices
• DEQNA module to connect to Ethernet
• DPV11 module to connect to a modem
• LPV11 module for an LP25 printer
• TK50-AA tape drive for system loading and backup

4-10

Configuration

MASS STORAGE DEVICE: RX50
RD52

BACKPLANE
SLOT NO.

I/O CUTOUTS
(STANDARD I/O)

BACKPLANE
ROW

KA630-AB (QUAD) CPU

M9047 GRANT CARD

MS630-AA MEMORY

M9047 GRANT CARD

EMPTY

DHV11 (QUAD) 8-LlNE MULTIPLEXER

RQDX2 (QUAD) RD/RX CONTROLLER

(1 X 4)
4

(2 X 3)
6
1

6
7

8
9
10
11
12

TOTAL USED:

AVAILABLE:

3
MR-16399

Figure 4-3 Base System

4-11

Configuration

MASS STORAGE DEVICE: RX50
RD53
RD53
BACKUP DEVICE: TK50-AA

BACKPLANE
SLOT NO.

I/O CUTOUTS
(STANDARD I/O)

BACKPLANE
ROW
A

(1 X4)
4

(2 X 3)
6

KA630-AA (QUAD) 1 MBYTE MEMORY + FPP

MS630-BB (QUAD) 4 MBYTE MEMORY

MS630-BEl (QUAD) 4 MBYTE MEMORY

DPV11 (DUAL)

EMPTY

LPV11 (DUAL)

DEQNA (DUAL)

DHV11 (QUAD) 8-LlNE MULTIPLEXER

M9047 GRANT CARD

RQDX2 (QUAD) RD/RX CONTROLLER

TQK50 (DUAL)

10
11
12

TOTAL USED:

AVAILABLE:
MR-16400

Figure 4-4

4-12

Advanced System

Diagnostics
5.1

INTRODUCTION

This chapter performs two basic functions. It provides:
• An overview of the diagnostic and maintenance tools available for use with the
MicroVAX II
• A roadmap for the diagnosis and repair of failures
5.2

KA630-A BOOT AND DIAGNOSTIC ROM

The MicroVAX II boot and diagnostic ROM tests the basic functionality of the
KA630-A module. Testing can occur in either of two modes:
• Power-up Mode
• Console I/O Mode
5.2.1

Power-up Mode

In power-up mode the ROM diagnostics, in conjunction with the boot programs,
test the KA630-A module's ability to load and run an operating system, the
MicroVAX Maintenance System, or other diagnostic software.
Table 5-1 provides a description of each test located in the ROM diagnostic, and
the LED value displayed on the MicroVAX II CPU I/O distribution insert as the
system counts down through each test. The LED value is also displayed in binary
form by a series of red LEDs on the KA630-A module (Figure 5-1), and, for values
of 7 or less, on the console terminal.
Table 5-1 also lists the field replaceable units (FRUs) most commonly at fault if the
countdown stops at a particular nonzero value. Their numbering indicates their
probability of fault (i.e., 1 is most likely).

5-1

Diagnostics

Table 5-1

LED Status and Countdown Error Messages

Value Countdown Tests/Probable FRU Failures
F

WAITING FOR DC OK
1. KA630-A module (does not recognize DC OK assertion)
2. Power supply (negating DC OK on bus)
3. A Q22-Bus device (negating DC OK on bus)
4. Backplane (DC OK shorted to another signal)
5. Power supply cable (defective or not properly connected)

WAITING FOR P OK
1. KA630-A module (does not recognize P OK assertion)
2. Power supply (negating P OK on bus)
3. A Q22-Bus device (negating P OK on bus)
4. Backplane (P OK shorted to another signal)

RUNNING CHECKSUM TEST ON CPU ROM
1. KA630-A module

SEARCHING FOR RAM MEMORY REQUIRED FOR CPU ROM
PROGRAMS
1. KA630-A module
2. MS630 module or modules
3. KA630-AjMS630 interconnect cable (short- or open-circuited)

READING KA630-A IPCR REGISTER (accesses Q22-Bus)
1. KA630-A module
2. A Q22-Bus device (preventing the CPU from acquiring the bus)
3. Backplane (preventing the CPU from acquiring the bus)

TESTING VCBOI VIDEO CONSOLE DISPLAY (if present)
1. Keyboard for VCBOI (defective or not connected)
2. Video display for VCBOI (defective or not connected)
3. VCBOI module
4. KA630-A module (can't read or write Q22-Bus; may be shorting
Q22-Bus)
5. A Q22-Bus device (preventing the CPU from acquiring the bus)
6. Backplane (preventing the CPU from acquiring the bus)
7. VCBOI distribution insert

5-2

Diagnostics

Table 5-1

LED Status and Countdown Error Messages (Cont)

Value Countdown Tests/Probable FRU Failures
9

IDENTIFYING CONSOLE TERMINAL
1. KA630-A module (if console does not respond within 6 seconds,
CPU proceeds to 7)

LANGUAGE INQUIRY OR CPU HALTEDt
1. KA630-A module (probably console interface)
2. Console cables (defective or not connected)
3. Console baud rate (mismatched)
4. Console terminal (power-off or broken)
5. Console distribution insert

RUNNING DATA TESTS ON RAM MEMORY
1. KA630-A module (RAM memory failure)
2. MS630 module
3. Backplane (CD interconnect short- or open-circuited)
4. KA630-A/MS630 interconnect cable (short- or open-circuited)

RUNNING ADDRESS TESTS ON RAM MEMORY
1. MS630 module
2. Backplane (CD interconnect short- or open-circuited)
3. KA630-A/MS630 interconnect cable (short- or open-circuited)

RUNNING TESTS THAT USE Q22-BUS MAP TO ACCESS LOCAL
MEMORY
1. KA630-A module
2. Q22-Bus device (preventing the CPU from acquiring the bus)
3. Backplane (preventing the CPU from acquiring the bus)

CPU INSTRUCTION AND REGISTER TESTS
1. KA630-A module

5-3

Diagnostics

Table 5-1

LED Status and Countdown Error Messages (Cont)

Value Countdown Tests /Probable FRU Failures
3

RUNNING INTERRUPT TESTS
1. KA630-A module
2. Q22-Bus device (incorrectly requesting interrupt)
3. Backplane (Q22-Bus BR line shorted)

SEARCHING FOR BOOTSTRAP DEVICE:!:
1. RQDX controller, RD5n drive, RX50 drive, or interconnect
cable (defective or not properly connected)
2. TQK50 controller, TK50 drive, or interconnect cable (defective
or not properly connected)
3. MRVIID module
4. DEQNA module
5. KA630-A module

BOOTSTRAP DEVICE FOUND
1. Q22-Bus bootstrap device
2. Signal cable to bootstrap device (defective or not connected)
3. Power cable to bootstrap device (defective or not connected)
4. KA630-A module

TESTING COMPLETED

* Before the console reaches 8, a heading should appear that reports the version of CPU
installed in the system, as well as other system information. If the LED reaches 8 or less
and the console terminal doesn't display a heading, then the five FRUs listed should be
suspected.

t When the LED is stopped at 8, the system is A) preparing to ask the user to supply the
selected language .to be used, B) informing the user that the CPU is halted, or C) actually
indicating a failure. If the system is not indicating a halt, but waiting for a language to be
entered, time out occurs and testing continues within two to six minutes.
:j: Be sure to try the troubleshooting remedies in the Micro VAX II 630QB Owner's Manual

before exploring these possibilities. Check signal and power cables before assuming drives
or controllers to be defective. Once cables have been checked, examine power-up LEDs
on individual devices and refer to Section 5.3 of this manual.

5-4

Diagnostics

GREEN
DC OK LED

{

RED LEDS

F\ F\ F\

VALUE ON

VALUE OFF

0
MR·' 5684

Figure 5-1

KA630-A CPU Module LEDs

The sum of values of all LEDs ON (when translated to hexadecimal) corresponds to
the hexadecimal values listed in Table 5-1.
5.2.2

Console Mode

In the console I/O mode, one of the ROM tests may be selected using the TEST
command. In addition, the EXAMINE command lets the user examine the contents
of registers and memory, and the BOOT command, when combined with the appropriate qualifier, selects the boot device. Further details on console commands are
given in Appendix A.
5.2.3 Console Terminal Error Messages
Error messages reported on the console terminal are formatted as shown in Figure
5-2. An explanation of the numbered messages follows the figure.

5-5

Diagnostics

KA630-A.XX

2.
3.

PERFORMING NORMAL SYSTEM TESTS.

7 ..

? <SUBTEST>

FAILURE.
NORMAL OPERATION NOT POSSIBLE.

<P1>

<P2>

<P3>

MR·15685

Figure 5-2 Example of a Console Terminal Error Message
1. Identifies the processor and the version number of the console program ROM.

2. Explains that the system is performing normal system tests as programmed on
the ROM.
3. Begins a countdown sequence to show that the system is progressing through its
tests. The numbers displayed have the same meaning as the numbers displayed
on the 1/0 distribution panel insert.
4. Indicates that the countdown sequence has been interrupted. Displays a diagnostic message that includes the question mark, a subtest code number and up to
three parameters.
5. Indicates that the test has failed and that the console program has stopped
executing.

5-6

Diagnostics

5.3 POWER-UP LEOS ON MASS STORAGE, BACKUP, AND
COMMUNICATIONS DEVICES

Several of the supported options (modules) for MicroVAX II have LEDs which
provide information on device-level power-up testing. Figures 5-3 through 5-5 show
the orientation of LEDs on these modules. Tables 5-2 through 5-4 explain the LED
readings and list the field replaceable units (FRUs) most likely to be at fault. Their
numbering indicates their probability of fault (i.e., 1 is most likely).
3

{

MR-15686

Figure 5-3

LED Orientation on the DEQNA Module

Table 5-2

DEQNA Module LED Indications

LEDs
3
2

Definition/FRU

OFF

Performing DEQNA station address PROM test
1. DEQNA module
2. KA630-A module
3. Q22-Bus device
4. Backplane
Performing DEQNA internalloopback test
1. DEQNA module
Performing DEQNA externalloopback test
1. DEQNA module
2. Cabling (short- or open-circuited, or not connected)
3. Fuse in distribution insert
DEQNA has passed all power-up tests

010

a
\

{

MR-15687

Figure 5-4 LED Orientation on the RQDX2 Module

5-7

Diagnostics

Table 5-3

RQDX2 Module LED Indications

LEDs

DI0

Definition/FRU

Beginning power-up testing
1. RQDX2 Module

OFF

Performing TIl processor test
1. RQDX2 Module

OFF

Performing TIl timer/counter/address generator
test
1. RQDX2 Module

OFF

Performing Q22-Bus timer/counter/address
generator test
1. RQDX2 Module

OFF

Performing Serializer/Deserializer test
1. RQDX2 Module

OFF

Performing CRC generator test
1. RQDX2 Module
Performing hardware version test
1. RQDX2 Module

OFF

Performing valid configuration test
1. RQDX2 Module

ON
ON
ON
OFF

ON
ON
ON

OFF
OFF

OFF

NOT USED
NOT USED

5-8

OFF

ON
OFF'

ON
OFF
OFF

Performing ROM checksum test
1. RQDX2 Module
Performing RAM test
1. RQDX2 Module
Performing diagnostic interrupt test
1. RQDX2 Module
Performing shuffle oscillator test
1. RQDX2 Module

NOT USED
Testing completed

Diagnostics
2

(

MR-15688

Figure 5-5

Table 5-4

LED Orientation on the TQK50 Module

TQK50 Module LED Indications

LEOs
2

Definition RU

Failed to pass power-up test
1. M7546 module

OFF

Failed U/Q port initialization
1. M7546 module
2. Interconnect cable
3. TK50 drive

BLINKING BLINKING Fatal error detected by controller
1. Interconnect cable (improperly keyed)
2. M7546 module
3. TK50 drive
OFF

OFF

Normal operation

The following supported options for the MicroVAX II system have a single LED
that (when ON) indicates proper operation of that option:
• DRV11
• DRV11
The RQDX3 module has a single LED that indicates a failure when ON.

5-9

Diagnostics
5.4

MicroVAX MAINTENANCE SYSTEM

The MicroVAX Maintenance System (MMS) is a combination diagnostic/
maintenance operating system. The system is available in two versions: 1) the
installation version provided with each Micro VAX II, and 2) the service version
shipped with the Micro VAX II Maintenance kit. The installation version is documented here, while the service version is documented in the Micro VAX System
Maintenance Guide. The installation version provides:
• Configuration verification
• System level testing
MMS is menu driven and can be loaded into any MicroVAX II system via tape or
diskette. Figure 5-6 shows the disclaimer screen when the first tape cartridge or
diskette is loaded into a system. Mter entering the date, if necessary, and pressing
the Return key, a screen similar to Figure 5-7 appears, requesting that the next
diskette be loaded (if diskettes are used). This screen is repeated until all necessary diagnostics have been loaded. Once this has been accomplished, pressing the
Return key accesses the MMS Main Menu as seen in Figure 5-8.

,..
MicroVAX Maintenance System - MOM Version V1.06
CONFIDENTIAL DIAGNOSTIC SOFTWARE
PROPERTY OF
DIGITAL EQUIPMENT CORPORATION
Use Authorized Only Pursuant to a Valid Right-to-use Licence
Copyright (c) 1985
Digital Equipment Corporation
The current date and time is: 26-JUL-1985 11 :34:47.00

Press the RETURN key to continue,
or enter the new date and time; then press the RETURN key.
[DD-MMM-YYYY HH:MM]:

MR·16211

Figure 5-6 Disclaimer Screen

5-10

Diagnostics

,..
[DD-MMM-YYYY HH:MM):
The current date and time is: 26-JUL-1985 11 :37:50.22

The system is preparing for testing.
This may take several minutes.
Please wait ..

Please remove the diskette.
Insert the next diskette in the same drive
and press the RETURN key.
If you can not insert the next diskette,
type 1 and press the RETURN key.

MA·16212

Figure 5-7

Load Additional Media Screen

,..
Press the RETURN key to continue. >
MAIN MENU
1 - Test the system
2 - Display System Configuration and Devices
3 - Display the Utilities Menu
4 - Display the Service Menu
5 - Exit MicroVAX Maintenance System
Type the number; then press the RETURN key. >

Figure 5-8 Maintenance System Main Menu
5-11

Diagnostics

5.4.1

Test the System (Menu Item #1)

System functional and exerciser tests are run by MMS. System tests are run on all
recognized devices, and can be run by any user at any time without jeopardizing
data.
5.4.2

Display System Configuration and Devices (Menu Item #2)

MMS provides verification of system installation by determining and displaying recognized system configuration. A problem or incorrect installation is evident when
any device known to be physically installed is missing from the terminal display.
NOTE
It is often useful to use the Display System Configuration and
Devices selection before using the Test the System selection. It
provides a quick check on what the system "sees" as available
for testing.
5.4.3

Display the Utilities Menu (Menu Item #3)

This selection is not used by the installation version of MMS. It is reserved for
further development under the service version of MMS.
5.4.4

Display the Service Menu (Menu Item #4)

This selection is not used by the installation version of MMS. It is used by the
service version, available in the MicroVAX Maintenance Kit, and documented by
the Micro VAX System Maintenance Guide.
5.4.5

Exit the MicroVAX Maintenance System (Menu Item #5)

This selection performs an orderly exit from the MicroVAX Maintenance System.

5-12

Diagnostics

5.5

TROUBLESHOOTING

When the MicroVAX II system or a supported option fails or exhibits erratic
behavior, the problem may be diagnosed using:
• Front panel indicators and lights
• Power-up self-tests

• Micro VAX II 630QB Owner's Manual
• Micro VAX II 630QB Technical Manual (this manual)
• MicroVAX Maintenance System - installation version

• Micro VAX System Maintenance Guide
• MicroVAX Maintenance System - service version
NOTE
Before using the Troubleshooting section of this manual, please
read the Problem/Solution section of the MicroVAX I/S30Q1J
Owner's Manual.

Most problems exhibited by a MicroVAX II system fall under one of the following
categories:
• Unknown system level problems (system fails to boot)
• Suspected device level problems (system can boot, problem may be intermittent
and is very often a CPU, memory, mass storage, or communications problem)
The following sections give a suggested method of troubleshooting each family of
problems.
5.5.1

Unknown System Level Problems (System Fails to Boot)

Figure 5-9 outlines the general procedure for troubleshooting the system when
either an operating system or the MicroVAX Maintenance System fails to boot.
5.5.2

Device-Specific Problems

Figure 5-10 outlines the general troubleshooting procedure when the system can
boot the MicroVAX Maintenance System, but a problem with a specific device is
suspected.

5-13

Diagnostics

TRY TO RESOLVE
PROBLEM USING
TROUBLESHOOTING
SECTION OF
OWNER'S MANUAL

NO
CHECK LED
INDICATORS ON ALL
Q22-BUS DEVICES

ISOLATE FRU AND
REPLACE USING
INSTRUCTIONS IN
CHAPTER 6

REFER TO TABLES
5-1 THROUGH 5-4
AND APPENDIX B
OF THIS MANUAL

ISOLATE FRU AND
REPLACE USING
INSTRUCTIONS IN
CHAPTER 6
NO

SUSPECT KA630-A
MODULE OR CABLE
CONNECTING
MODULE TO
DISTRIBUTION PANEL

SUSPECT POWER
SUPPLY AND/OR
ASSOCIATED CABLING

ISOLATE FRU AND
REPLACE USING
INSTRUCTIONS IN
CHAPTER 6

ISOLATE FRU AND
REPLACE USING
INSTRUCTIONS IN
CHAPTER 6
MA-15690

Figure 5-9

5-14

Troubleshooting Flowchart for Fail-to-Boot Problems

Diagnostics

TRY TO RESOLVE
PROBLEM USING
TROUBLESHOOTING
SECTION OF
OWNER'S MANUAL

LOAD MICROVAX
MAINTENANCE
SYSTEM

START SYSTEM
CONFIGURATION
UTILITY

DEVICE IS BROKEN,
NOT PROPERLY
CONNECTED.
OR NOT PROPERLY
CONFIGURED

START SYSTEM
TESTING FROM
MAIN MENU

RESEAT THE
DEVICE AND/OR
ITS CABLE(S).
IT MAY NEED TO BE
RECONFIGURED OR
REPLACED.

YES

REFER TO CHAPTER 6
FOR REMOVAL AND
REPLACEMENT
PROCEDURES

OBTAIN AND USE
MICROVAX SYSTEM
MAINTENANCE KIT
(DOCUMENTED IN THE
MICROVAX SYSTEM
MAINTENANCE GUIDE)
MR·15691

Figure 5-10 Troubleshooting Flowchart for Device-Specific Problems

5-15

FRU Removal and Replacement Procedures
6.1

INTRODUCTION

This chapter describes the removal and replacement procedures for the field
replaceable units (FRUs) in the BA123-A enclosure (Table 6-1, Figure 6-1).

Table 6-1

BAI23-A FRUs

Part Number

Description

17-00859-01

Switch, ac power to power supply, and cable from switch to
power supply
Cable, backplane to CPU console board
CPU console board
Cable, signal distribution board to 4 RD consoles
Cable, 20-conductor RD drive
Cable, 40-conductor RD drive
RD52 console
Cable, 50-conductor, RQDX to signal distribution board
Cable, signal distribution board to RX50
Cable, TK50-A/TQK50 interconnect
Signal distribution board
Fan, 12.7 cm (5 in) card-cage
Fan, 11.4 cm (4.5 in) mass storage
Switch, door interlock, and cable from switch to temperature
sensor board
Temperature sensor board

17-00860-01
54-16596-01
17-00862-01
17-00282-01
17-00286-01
54-16244-02
17-00861-01
17-00867-01
17-01047-01
M9058
12-23395~01

12-22271-01
17-00942-01
54-16665-01

6-1

FRU Removal and Replacement Procedures

Table 6-1

BAI23-A FRUs (Cont)

Part Number

Description

17 -00863-01
17 -00864-01
17-00865-01
17 -00865-01
17-00870-01
17 -00911-01
30-23616-01
54-17507-01
12-23985-01
12-23985-02
54-16744-01

Cable, power supply to card-cage fan and temperature sensor
Cable, power supply to mass storage fan
Cable, Regulator A to backplane
Cable, Regulator B to backplane
Cable, Regulator A to 2 drives via 2 plugs
Cable, Regulator B to 3 drives via 3 plugs
Power supply
Q22-Bus backplane, 13-s10t, quad-height
Casters, shock isolating, fixed (2)
Casters, shock isolating, swivel (2)
CPU distribution insert

NOTE
Unless otherwise specified, FRUs are replaced by reversing the
order of the removal procedures.

6-2

TO DRIVE 3 OR 4

TO DRIVE 5

TO DRIVE
1 OR 2
17-00859-01
BACKPLANE
54 -17507 -01

ON/OFF
SWITCH

"Tl

JJ
C
JJ
CD

3
o

e.
P>
~

CARD-CAGE
FAN
12-23395-01

RD CONSOLE BOARD 17-00862-01

"'0

o
CD
3
CD

MR-15292

*RODX2. TOK50 AND SIGNAL DISTRIBUTION
BOARD SHOWN_ ALL 022-BUS MODULES ARE
FRUS_ SEE CHAPTER 3 FOR MODULE AND
CABLING NUMBERS FOR 022-BUS OPTIONS_
0)

-0

Figure 6-1

BA123-A FRUs

Ci)
CJ)

FRU Removal and Replacement Procedures

6.2

REMOVAL OF THE EXTERIOR PANELS

The exterior panels must be taken off before beginning most removal and replacement procedures. The following two sequences will be referenced in the subsequent procedures.
6.2.1

Removal of the Right Side Panel

1. Turn the system off and unplug the ac power cord from the wall socket.
2. Open the rear door.
3. Loosen the captive screw that connects the right side panel to the rear of the
enclosure frame (Figure 6-2).
4. The panel is attached to the bottom of the enclosure frame by two snap fasteners. Pull the bottom of the panel out until the panel detaches from the bottom of
the enclosure.
5. Lift the panel slightly to release it from the lip at the top of the frame and
remove the panel (Figure 6-3).

MR·14045

Figure 6-2

6-4

Unhooking the Right Side Panel

FRU Removal and Replacement Procedures

Figure 6-3

Removing the Right Side Panel

6-5

FRU Removal and Replacement Procedures

6.2.2

Removal of the Left Side Panel

1. Turn the system off and unplug the ac power cord from the wall socket.
2. Open the front control panel door.
3. Loosen the screw that connects the left side panel to the front of the enclosure
frame (Figure 6-4).
4. The panel is attached to the bottom of the enclosure frame by two snap fasteners. Pull the bottom of the panel out until the panel detaches from the bottom of
the enclosure.
5. Lift the panel slightly to release it from the lip at the top of the frame and
remove the panel (Figure 6-5).

Figure 6-4 Unhooking the Left Side Panel

6-6

FRU Removal and Replacement Procedures

MR-14606

Figure 6-5

Removing the Left Side Panel

6-7

FRU Removal and Replacement Procedures

6~3

ON/OFF SWITCH REMOVAL

1. Remove the left side panel as described in Section 6.2.2.

2. Unplug the On/Off switch cable from the power supply.
3. Remove the nut that holds the cable's ground lead to the enclosure frame.
Disconnect the ground lead.
4. Press the top and bottom of the On/Off switch and push the switch and its cable
out from the inside of the front panel (Figure 6-6).

Figure 6-6

6-8

On/Off Switch Removal

FRU Removal and Replacement Procedures

6.4

CPU CONSOLE BOARD REMOVAL

1. Remove the left side panel as described in Section 6.2.2.

2. Disconnect the ribbon cable from the CPU console board (Figure 6-7).
3. Remove the two screws that hold the CPU console board assembly to the
control panel.
4. Remove the board from the plastic brackets.

MR-'4048

Figure 6-7

CPU Console Board Removal

6-9

FRU Removal and Replacement Procedures

6.5

13.3 cm (5.25 in) MASS STORAGE DEVICE REMOVAL

The following procedure applies to both removable and fixed media drives.
1. Remove both side panels as described in Sections 6.2.1 and 6.2.2.

2. The front panel is attached to the enclosure by four snap fasteners. Remove the
front panel by pulling it from the frame until the snap fasteners detach.
3. Disconnect all signal cables and dc power cables from the device.
4. Push down on the release tab found below the front of the device and slide the
device out of the shelf.
6.5.1

RD52 Read/Write Board Removal
NOTE
Replace the main printed circuit board (MPCB) only on RD52
disk drives with a DIGITAL P.N. 30-21721-02.
Screws located on the slide plate and MPCB are different sizes.
Make sure you reinstall the screws in their proper location.

1. Remove the four Phillips screws retaining the slide plate and ground clip. Set
the slide plate aside (Figure 6-8).

2. Unplug the 2-pin connector (Figure 6-9).
3. Remove the two Phillips screws that attach the front bezel to the drive.

6-10

FRU Removal and Replacement Procedures

Figure 6-8 Removing the Sl"d
1 e Plate

Rem

Figure 6-9

.
""W"
ovmg the 2-Pin Connector and Screws

6-11

FRU Removal and Replacement Procedures

4. Remove the front bezel by pulling it away from the drive. The bezel is held in
place with pop fasteners (Figure 6-10).
5. Remove the three Phillips screws from the heatsink, grounding strip, and the
corner opposite the heatsink (Figure 6-11).
6. Lift the MPCB straight up until it clears the chassis. This disconnects P4, a
12-pin fixed plug (Figure 6-12).
7. Disconnect P5, a 10-pin connector.

Figure 6-10 Removing the Front Bezel

6-12

FRU Removal and Replacement Procedures

i
I

Figure 6-11

Removing Phillips Screws from Heatsink

Figure 6-12

Removing the MPCB

6-13

FRU Removal and Replacement Procedures

6.5.2

R053 Read/Write Board Removal

The RD53 read/write board is the only part of an RD53 drive that is replaceable.
Always try replacing the read/write board before you replace an entire RD53 drive.
1. Remove the four Phillips screws retaining the slide plate and ground clip. Set
the plate aside (Figure 6-13).

2. Loosen the two captive screws that hold the read/write board in place.
3. Rotate the board upward (the board pivots in hinge slots at the front of the
drive). Being careful not to strain any of the connectors or cables, tilt the board
over center until it comes to rest against the outer frame.
CAUTION
Flexible circuit material is fragile and requires careful handling
to avoid damage.

4. Disconnect the motor control board connector j8 and the preamplifier board
connector j9 from the read/write board. Both connectors and cables are fragile;
handle them with care.
5. Lift the board out of the hinge slots.
NOTE
Make sure to set the jumpers and switches for the new board to
the same positions as the old one.

6-14

FRU Removal and Replacement Procedures

MOTOR CONTROL BOARD

~~-""-~~SCREWS. MOTOR

CONTROL BOARD

PREAMPLIFIED BOARD
AND SHIELD

MR·15693

Figure 6-13

RD53 Read/Write Board Removal

6-15

FRU Removal and Replacement Procedures

6.6

FAN REMOVAL

The following two sections list the procedures for removing the card-cage fan and
the mass storage fan. The fan in the power supply is not an FRU.
6.6.1

Mass Storage Fan Removal

1. Remove the left side panel as described in Section 6.2.2.

2. Note that the dc power cable's plug is contoured to fit along the side of the fan.
Disconnect the cable from the fan. When replacing the fan, be sure to align the
cable the same way.
3. Remove the three screws that connect the fan's metal base plate to the enclosure frame (Figure 6-14).
NOTE
Observe the alignment of the fan before removing it. Be sure to
align the replacement fan in the same direction.

4. Remove the four screws that connect the fan to the metal base plate.

6-16

FRU Removal and Replacement Procedures

Figure 6-14 Mass Storage Fan Removal

6-17

FRU Removal and Replacement Procedures

6.6.2

Card-Cage Fan Removal

1. Remove the right side panel as described in Section 6.2.1.
2. Remove the card-cage door by releasing the two clasps at the front end of the
door and swinging the door open.
3. Slide the tray below the card cage partially out (Figure 6-15).
4. Note that the cable's dc power plug is contoured to fit along the side of the fan.
Disconnect the cable from the fan. When replacing the fan, be sure to align the
cable the same way.
5. Remove the four screws that connect the fan to the tray.

Figure 6-15

6-18

Card-Cage Fan Removal

FRU Removal and Replacement Procedures

6.7

MODULE REMOVAL
CAUTION
Static electricity can damage modules. Always use a grounded
wrist strap and grounded work surface when working with or
around modules.
Remove and install modules carefully to prevent damage to
module components and other modules, or possibly changing
the switch settings.

1. Remove the right side panel as described in Section 6.2.1.
2. Remove the card-cage door by releasing the two clasps at the front end of the
door and swinging the door open.
3. Carefully but firmly pull the levers which hold the module in place. Slide the
module partially out of the backplane (Figure 6-16).
4. Note the alignment of any cables attached to the module. Disconnect the cables.
5. Remove the module from the enclosure.
NOTE
Be sure that the jumper and switch configurations on the
replacement module are the same as those on the module
removed.
Before removing a module from the backplane, be sure to note
the position of all modules and the alignment of any cables that
you disconnect.

6-19

FRU Removal and Replacement Procedures

I
MR-14051

Figure 6-16

Module Removal

When installing modules, make sure the levers latch properly as you seat the
module in the backplane.
Replacement modules come wrapped in special antistatic packaging material. A
silica gel packet is also included to prevent damage from moisture. Use this
antistatic packaging material and silica gel packet to protect any modules you store,
transport, or return.
If you install a dual-height module in slots 1 through 4 of the backplane, you must
install it in the AB rows. MS630-AA memory modules must be installed in the CD
rows of slot 2 or 3. If you install dual-height modules in slots 5 through 12 of the
backplane, you must install a grant continuity card (M9407) or a second dual-height
module in the other two rows of the slot.

6-20

FRU Removal and Replacement Procedures

6.8

DOOR INTERLOCK SWITCH REMOVAL

1. Remove the right side panel as described in Section 6.2.1.
2. Remove the card-cage door by releasing the two clasps at the front end of the
door and swinging the door open.
3. A cable connects the interlock switch to the temperature sensor. Disconnect the
cable from the temperature sensor (Figure 6-17).
4. Remove the two screws that connect the switch to the side of the card cage and
remove the switch and the cable.
6.9

TEMPERATURE SENSOR REMOVAL

1. Remove the right side panel as described in Section 6.2.1.
2. Remove the card-cage door by releasing the two clasps at the front end of the
door and swinging the door open.
3. A cable connects the interlock switch to the temperature sensor. Disconnect the
cable from the temperature sensor (Figure 6-17).
4. A cable connects the temperature sensor to the power supply. Disconnect the
cable from the temperature sensor.
5. Remove the temperature sensor from the four plastic brackets connecting it to
the enclosure frame.

6-21

FRU Removal and Replacement Procedures

DOOR INTERLOCK
SWITCH

MR-14052

Figure 6-17

6-22

Door Interlock Switch/Temperature Sensor

FRU Removal and Replacement Procedures

6.10

POWER SUPPLY REMOVAL

1. Remove the left side panel as described in Section 6.2.2.

2. Note the location and alignment of all cables attached to the power supply.
Disconnect all cables, including the ac power cable at the rear of the system.
3. Remove the four 1/4 turn fasteners holding the power supply to the enclosure
frame and remove the power supply (Figure 6-18).
CAUTION
Before installing a new power supply, verify that the voltage
select switch at the rear of the power supply is set for the correct ac voltage. Damage to the system could result if the switch
is not properly set.

6-23

FRU Removal and Replacement Procedures

Figure 6-18

6-24

Power Supply Removal

FRU Removal and Replacement Procedures

6.11

BACKPLANE REMOVAL

1. Remove both side panels as described in Sections 6.2.1 and 6.2.2.
2. Slide all modules partially out of the backplane, including the signal distribution
board.
3. Remove the power supply as described in Section 6.10.
4. There is a metal plate between the backplane and the power supply. Remove
the six screws that hold the plate to the enclosure frame.
5. Lift the metal plate and the backplane out of the back of the card cage
(Figure 6-19).
6. Remove the screws that hold the metal plate to the backplane.
The backplane is replaced as follows:
1. Insert the screws that hold the metal plate to the backplane.
2. Place the backplane and the metal plate at the back of the card cage.
3. Insert a module in the first and the last card guide of the card cage.
4. Align the backplane so that the two modules can be fully inserted into the
backplane. Insert the modules.
5. Insert the six screws that hold the metal plate to the enclosure frame.
6. Check the alignment of the backplane by inserting all of the system modules in
their original slots.
7. Replace the power supply by reversing the procedure described in Section 6.10.

6-25

FRU Removal and Replacement Procedures

Figure 6-19 Backplane Removal

6-26

FRU Removal and Replacement Procedures

6.12

FILTER CONNECTOR REMOVAL

1. Turn the system off and unplug the ac power cord from the wall socket.
2. Open the rear door.
3. Disconnect any cables attached to the filter connector. Note where the cables
were attached.
4. Remove the right side panel as described in Section 6.2.1.
5. Remove the card-cage door by releasing the two clasps at the front end of the
door and swinging the door open.
NOTE
Some of the internal cables that connect to the back of filter
connectors may not be keyed. Observe the alignment of the
internal cables and be sure to reconnect them the same way.

6. Disconnect any cables that connect the filter connector insert to modules inside
the enclosure.
7. Remove the screws that hold the filter connector to the I/O distribution panel.
8. Remove the filter connector.

6-27

Appendix A
Console Commands
A.1

CONSOLE COMMAND SYNTAX

The console accepts commands up to 80 characters long. Longer commands are
responded to with an error message. The count does not include rubouts, rubbed
out characters, or the terminating carriage return.
Commands may be abbreviated. Abbreviations are formed by dropping characters
from the end of a keyword. All commands are recognized from their first
character.
Multiple adjacent spaces and tabs are treated as a single space by the console.
Leading and trailing spaces and tabs are ignored.
Command qualifiers can appear after the command keyword, or after any symbol or
number in the command.
All numbers (addresses, data, counts) are in hexadecimal. (Note, though, that symbolic register names include decimal digits.) Hex digits are 0 through 9, and A
through F. The console does not distinguish between upper and lower case either
in hex numbers (A through F) or in commands. Both are accepted.
A.2

REFERENCES TO PROCESSOR REGISTERS AND MEMORY

The KA630 console is implemented by macrocode executing from ROM. For this
reason, the actual processor registers may not be modified by the command interpreter. When console I/O mode is entered, the console saves the processor registers in a scratch page and all command references to them are directed to the
corresponding scratch page locations, not to the registers themselves. When the
console reenters program mode, the saved registers are restored and any changes
then become operative. References to processor memory are handled normally
except where noted below.

A-1

Console Commands

Generally, a free page on the interrupt stack is used for the scratch page, so the
console does not modify the machine state. If a free page on the interrupt stack
cannot be located, the console program uses the last valid page in contiguous
physical memory and the original machine state is lost. This should occur only on
power-up.
References to the console scratch page by EXAMINE and DEPOSIT commands
must be qualified by the IU qualifier. (Access is primarily to simplify debugging of
the console program.) The binary load and unload commands may not reference the
console scratch page.
~3

A.3.1

CONSOLE COMMANDS
Binary Load and Unload (X)

Command Syntax:
X <address> <count> <CR> <checksum>

The X command is for use by automatic systems communicating with the console.
It is not intended for use by operators. The console loads or unloads (that is, writes
to memory, or reads from memory) the specified number of data bytes, starting at
the specified address.
If bit 31 of the count is clear, data is to be received by the console and deposited
into memory. If bit 31 of the count is set, data is to be read from memory and sent
by the console. The remaining bits in the count are a positive number indicating
the number of bytes to load or unload.

The console accepts the command upon receiving the carriage return. The next
byte the console receives is the command checksum, which is not echoed. The
command checksum is verified by adding all command characters, including the
checksum, (but not including the terminating carriage return or rub outs or characters deleted by rubout), into an 8-bit register initially set to zero. If no errors
occur, the result is zero. If the command checksum is correct, the console responds
with the input prompt and either sends data to the requester or prepares to
receive data. If the command checksum is in error, the console responds with an
error message. The intent is to prevent inadvertent operator entry into a mode
where the console is accepting characters from the keyboard as data, with no
escape sequence possible.
If bit 31 of the count is clear (binary load commands), the console responds with
the input prompt, then accepts the specified number of data bytes for depositing to
memory, and an additional byte of received data checksum. The data is verified by

A-2

Console Commands
adding all data characters and the checksum character into an 8-bit register initially
set to zero. If the final contents of the register is non-zero, the data or checksum
is in error, and the console responds with an error message.
If bit 31 of the count is set (binary unload commands), the console responds with
the input prompt, followed by the specified number of bytes of binary data. As each
byte is sent it is added to a checksum register initially set to zero. At the end of
the transmission, the 2's complement of the low byte of the register is sent.
If the data checksum is incorrect on a load, or if memory errors or line errors
occur during the transmission of data, the entire transmission is completed, and
then the console issues an error message. If an error occurs during loading, the
contents of the memory being loaded are unpredictable.

Echo is suppressed during the receiving of the data string and checksums.
It is possible to control the console through the use of the console control characters «CTRL> C, <CTRL> S, <CTRL> 0, etc.) during binary unload commands.
It is not possible during binary load commands, as all received characters are valid
binary data.
Data being loaded with a binary load command must be received by the console at
a rate of at least one byte per second. The command checksum that precedes the
data must be received by the console within 10 seconds of the <CR> that terminates the command line. The data checksum must be received within 10 seconds of
the last data byte. If any of these timing requirements are not met, the console
aborts the transmission by issuing an error message and prompting for input.
The entire command, including the checksum, may be sent to the console as a
single burst of characters at the console's specified character rate. The console is
able to receive at least 4 Kbytes of data in a single X command.
A.3.2

BOOT

Command Syntax:
BOOT [<qualifier list>] [<device>]

The device specification is of the format ddcu, where dd is a two-letter device
mnemonic, c is an optional one-digit controller number, and u is a one-digit unit
number.
The console initializes the processor and starts VMB running. VMB boots the
operating system from the specified device. The default bootstrap device is determined as described in the section on system bootstrapping.

A-3

Console Commands
Qualifier:
• /R5:<data> - After initializing the processor and before starting VMB, R5 is
loaded with the specified data. This allows a console user to pass a parameter to
VMB. (To remain compatible with previous processors, /<data> is also recognized and has the same result.)
A.3.3

Comment (!)

Command Syntax:
! <comment>

The comment command is ignored. It is used to annotate console I/O command
sequences.
A.3.4

CONTINUE

Command Syntax:
CONTINUE
The processor begins instruction execution at the address currently contained in
the program counter. Processor initialization is not performed. The console enters
program I/O mode.
A.3.S

DEPOSIT

Command Syntax:
DEPOSIT [<qualifier list>] <address> <data>
This command deposits the data into the address specified. If no address space or
data size qualifiers are specified, the defaults are the last address space and data
size used in a DEPOSIT or EXAMINE com-mand. After proces~or initialization, the
default address space is physical memory, the default data size is long, and the
default address is zero.
If the specified data is too large to fit in the data size to be deposited, the console
ignores the command and issues an error response. If the specified data is smaller
than the data size to be deposited, it is extended on the left with zeros.

A-4

Console Commands

The address may also be one of the following symbolic addresses:
• PSL - The processor status longword. No address space qualifier is legal. When
PSL is examined, the address space is identified as M (machine dependent) .
• PC - The program counter (general register 15). The address space is set to

IG.
• SP - The stack pointer (general register 14). The address space is jG.
• Rn - General register n. The register number is in decimal. The address space
is IG. For example:
D R5 1234 is equivalent to DIG 5 1234
D RIO 6FFOO is equivalent to DIG A 6FFOO

• '+' - The location immediately following the last location referenced in an
EXAMINE or DEPOSIT command. For references to physical or virtual memory
spaces, the location referenced is the last address, plus the size of the last
reference (1 for byte, 2 for word, 4 for long). For other address spaces, the
address is the last address referenced, plus one.
• '-' - The location immediately preceding the last location referenced in an
EXAMINE or DEPOSIT command. For references to physical or virtual memory
spaces, the location referenced is the last address minus the size of this reference (1 for byte, 2 for word, 4 for long). For other address spaces, the address
is the last address referenced minus one.

• ,*, - The location last referenced in an EXAMINE or DEPOSIT command.
• '@' - The location addressed by the last location referenced in an EXAMINE or

DEPOSIT command.
Qualifiers:

• IB - The data size is byte.
• IW - The data size is word.

• IL - The data size is longword.

A-5

Console Commands

• IV - The address space is virtual memory. All access and protection checking
occurs. If the access would not be allowed to a program running with the current PSL, the console issues an error message. Virtual space DEPOSITs cause
the PTE<M> bit to be set. If memory mapping is not enabled, virtual addresses
are equal to physical addresses.

• IP - The address space is physical memory.
• II - The address space is internal processor registers. These are the registers
addressed by the MTPR and MFPR instructions.

• IG - The address space is the general register set, RO through PC.

• IU - Access to console program memory is allowed. This qualifier also disables
virtual address protection checks.

• IN :<count> - The address is the first of a range. The console deposits to the
first address, then to the specified number of succeeding addresses. Even if the
address is the symbolic address '-', the succeeding addresses are at larger
addresses. The symbolic address specifies only the starting address, not the
direction of succession. For repeated references to preceding addresses, use
REPEAT DEPOSIT - <data>.
NOTE
Only memory may be accessed as bytes or words. Registers,
the PSL and the IPRs must be accessed using the longword
reference. This means that the IB and IW qualifiers may not be
used with the II and IG qualifiers.

Examples:

D/P/B/N:1FF 0 0

Clears the first 512 bytes of physical memory.

D/V/L/N:3 1234 5

Deposits 5 into four longwords starting at virtual
address 1234.

D/N:8 RO FFFFFFFF

Loads general registers RO through R8 with -l.

D/N:200 - 0

Starting at previous address, clears 513 bytes.

If conflicting address space or data sizes are specified, the console ignores the
command and issues an error response.

A-6

Console Commands

A.3.6

EXAMINE

Command Syntax:
EXAMINE [<qualifier list>] [<address>]

Examines the contents of the specified address. If no address is specified, '+' is
assumed. The address may also be one of the symbolic addresses described under
Section A.3.5, DEPOSIT.
Qualifiers:
The same qualifiers used with EXAMINE may be used with DEPOSIT.
Response:
<tab> <address space identifier> <address> <tab> <data>
The address space identifier can be:
• P - Physical memory. Note that when virtual memory is examined, the address
space and address in the response are the translated physical address.
• G - General register.
• I - Internal processor register.
• M - Machine dependent address (used only for display of the PSL).
A.3.7

FIND

Command Syntax:
FIND [<qualifier list>]

The console searches main memory starting at address zero for a page-aligned 64kilobyte segment of good memory, or a Restart Parameter Block (RPB). If the
segment or block is found, its address plus 512 is left in SPa If the segment or
block is not found an error message is issued, and the contents of SP are unpredictable. If no qualifier is specified, /RPB is assumed.

A-7

Console Commands

Qualifiers:
• /MEMORY - Searches memory for a page-aligned segment of good memory, 64
kilobytes in length. The search includes a read/write test of memory and leaves
the contents of memory unpredictable.
• /RPB - Searches memory for a restart parameter block. The search leaves the
contents of memory unchanged.
A.3.8

INITIALIZE

Command Syntax:
INITIALIZE

A processor initialization is performed. The following registers are set (all values
are hexadecimal):
PSL

04IFOOOO

IPL

ASTLVL

SISR

o
o
o

ICeS

Rxes
Txes
MAPEN

All other registers are unpredictable.
The previous console reference defaults (the defaults used to fill in unsupplied
qualifiers for DEPOSIT and EXAMINE commands) are set to physical address,
longword size and address o.

A-8

Console Commands
A.3.9

HALT

Command Syntax:
HALT

The HALT command has no effect, the processor is already halted when in console
I/O mode.
A.3.10

REPEAT

Command Syntax:
REPEAT <command>

The console repeatedly displays and executes the specified command. The repeating is stopped by typing <CTRL> C. Any valid console command may be specified
for the command with the exception of REPEAT.
A.3.11

START

Command Syntax:
8TART [<address>]

The console starts instruction execution at the specified address. If no address is
given, the current PC is used. If no qualifier is present, macroinstruction execution
is started. If memory mapping is enabled, macroinstructions are executed from
virtual memory. The START command is equivalent to a DEPOSIT to PC, followed
by a CONTINUE command. No INITIALIZE is performed.

A-9

Console Commands

A.3.12

TEST

Command Syntax:
TEST [<test number>]

The console invokes a diagnostic test program denoted by <test number>. Valid
test numbers are 3 through 7 and B. If no test number is supplied, no test is
performed.
A.3.13

UNJAM

Command Syntax:
UNJAM

An I/O bus reset is performed.

A-10

Appendix B
Console Error Messages and Explanations
Table B-1

Console Error Messages and Explanations

Hex
Value

Message

Explanation

EXT HLT

Break was typed on the console, QBINIT or
QHALT was asserted.

ISP ERR

In attempting to push state onto the interrupt
stack during an interrupt or exception, the
processor discovered that the interrupt stack
was mapped NO ACCESS or NOT VALID.

DBL ERR

The processor attempted to report a machine
check to the operating system, and a second
machine check occurred.

HLTINST

The processor executed a HALT instruction in
kernel mode.

SCB ERR3

The vector had bits <1:0> equal to 3.

SCB ERR2

The vector had bits <1:0> equal to 2.

CHM FR ISTK

A change mode instruction was executed when
PSL<IS> was set.

CHM TO ISTK

The exception vector for a change mode had bit
<0> set.

SCB RD ERR

A hard memory error occurred while the
processor was trying to read an exception or
interrupt vector.

MCHKAV

An access violation or an invalid translation
occurred during machine check exception
processing.

8-1

Console Error Messages and Explanations

Table B-1

Console Error Messages and Explanations (Cont)

Hex
Value

Message

Explal!-ation

KSPAV

An access violation or an invalid translation
occurred during processing of an invalid kernel
stack pointer exception.

CORRPTN.

The console database was corrupted. The
console program simulates a power-up sequence
and rebuilds its database.

ILL REF

The requested reference would violate virtual
memory protection, the address is not mapped,
the reference is invalid in the specified address
space, or the value is invalid in the specified
destination.

ILL CMD

The command string cannot be parsed.

INV DGT

A number has an invalid digit.

LTL

The command was too large for the console to
buffer. The message is issued only after receipt
of the terminating carriage return.

ILL ADR

The address specified falls outside the limits of
the address space.

VAL TOO LRG

The value specified does not fit in the
destination.

SW CONF

For example, two different data sizes are
specified with an EXAMINE command.

UNKSW

The switch is unrecognized.

UNKSYM

The symbolic address in EXAMINE or
DEPOSIT is unrec)gnized.

CHKSM

The command or data checksum of an X
command is incorrect. If the data checksum is
incorrect, this message is issued, and is not
abbreviated to 'Illegal command.'

HLTED

The operator entered a HALT command.

8-2

Console Error Messages and Explanations

Table B-1

Console Error Messages and Explanations (Cont)

Hex
Value

Message

Explanation

FND ERR

A FIND command failed either to find the RPB
or 64 kilobytes of good memory.

TMOUT

During an X command, data failed to arrive in
the time expected.

MEMERR

Parity error detected.

UNXINT

An unexpected interrupt or exception has
occurred.

NOSUCHDEV

No bootable devices found.

DEVASSIGN

Device is not present.

NOSUCHFILE

Program image not found.

FILESTRUCT

Invalid boot device file structure.

BADCHKSUM

Bad checksum on header file.

BADFILEHDR

Bad file header.

BADIRECTORY

Bad directory file.

FILNOTCNTG

Invalid program image file.

ENDOFFILE

Premature end of file encountered.

BAD FILENAME

Bad file name given.

BUFFEROVF

Program image does not fit in available memory.

CTRLERR

Boot device I/O error.

DEVINACT

Failed to initialize boot device.

DEVOFFLINE

Device is off-line.

MEMERR

Memory initialization error.

SCBINT

Unexpected SCB exception or machine· check.

SCBZNDINT

Unexpected exception after starting program
image.

NOROM

No valid ROM image found.

Console Error Messages and Explanations

Table B-1
Hex
Value
52

8-4

Console Error Messages and Explanations (Cont)
Message

Explanation

NOSUCHNODE
INSFMAPREG
RETRY

No response from load server.
Invalid memory configuration.
No devices bootable, retrying.

Index
Air flow,

1-3

BAI23-A enclosure, 1-1 - 1-19
air flow, 1-3
backplane, 1-10 - 1-13
control panel, 1-5
CPU console board, 1-6, 1-7
enclosure frame, 1-2 - 1-4
expansion space, 4-3
mass storage shelves, 1-5
power supply, 1-13 - 1-16
removal of exterior
panels, 6-4 - 6-7
signal distribution board, 1-8, 1-9
Backplane, 1-10 - 1-13
connectors, 1-12
grant continuity, 1-10, 1-11
module priority, 4-1 - 4-3
removal, 6-25,6-26
Baud rate select switch, 2-8
Bootstrap program, 2-5, 2-6
fail-to-boot troubleshooting
flowchart, 5-14
Cabinet kit, 1-17,3-1. See also
specific option.
Card-cage fan, 1-3, 1-4
removal, 6-18
Circuit breaker, 1-15
Communications options, 3-4 - 3-33

Configuration, 4-1 - 4-12
bus loads, 4-5,4-6
examples, 4-9 - 4-12
expansion space, 4-3
floating CSR address, 4-8
module CSR addresses and
interrupt vectors, 4-6 - 4-8
module physical priority, 4-1 - 4-3
power requirements, 4-3 - 4-5
rules, 4-1
Console commands, A-I - A-I0
Console error messages, B-1 - B-4
Console I/O mode, 2-5,2-7,5-5
Console serial line unit
(SLU) , 2-1,2-2
Console terminal error message
example, 5-6
Control panel, 1-5
CPU console board, 1-6, 1-7
removal, 6-9
CPU module. See KA630-A CPU
module.
CPU patch panel insert, 2-6 - 2-8
switches, 2-7,2-8
CSR address. See also specific module.
definition, 3-2
example, 3-2,3-3
fixed, 3-2
floating, 3-2

Index-1

Index

DEQNA Ethernet interface, 3-4, 3-5
current and power, 4-5
floating CSR (2nd DEQNA), 4-6
physical priority, 4-2
DHV11 asynchronous
multiplexer, 3-6 - 3-8
current and power, 4-5
floating CSR, 4-7
physical priority, 4-2
Diagnostics, 5-1 - 5-17
Console error messages, B-1 - B-4
Console terminal error
messages, 5-5, 5-6
DEQNA LED indications, 5-7
KA630-A boot and diagnostic
ROM, 5-1
LED countdown error
messages, 5-2 - 5-4
MicroVAX maintenance system
(MMS), 5-10 - 5-12
RQDX2 LED indications, 5-8
TQK50 LED indications, 5-9
troubleshooting, 5-13 - 5-15
Disk controller module. See
RQDX2 disk controller.
Disk drive
current and power, 4-5
RD52, 3-37, 3-38
RD53, 3-37, 3-38
removal, 6-10 - 6-15
Disk storage devices, 3-34 - 3-39
DLVJ1 asynchronous
interface, 3-11 - 3-13
current and power, 4-5
floating interrupt vector, 4-7
physical priority, 4-2
DMV11 synchronous
controller, 3-14 - 3-18
current and power, 4-5
floating CSR and vector, 4-7
physical priority, 4-2

Index-2

Door interlock switch, 1-4
removal, 6-21
DPV11 synchronous
interface, 3-20 - 3-23
current and power, 4-5
physical priority, 4-2
DRV11-J high density parallel
interface, 3-24, 3-25
current and power, 4-5
floating interrupt vector, 4-7
physical priority, 4-2
DZQ11 asynchronous
multiplexer, 3-26 - 3-28
current and power, 4-5
floating CSR and interrupt
vector, 4-7
physical priority, 4-2
DZV11 asynchronous
multiplexer, 3-29 - 3-31
current and power, 4-5
floating CSR and interrupt
vector, 4-7
physical priority, 4-2
Electrical distribution, 1-16
Enclosure frame, 1-2 - 1-4
removal of exterior
panels, 6-4 - 6-7
Expansion space, 4-3
Factory configuration. See specific
module.
Fail-to-boot troubleshooting
flowchart, 5-14
Fans, 1-3, 1-4
removal, 6-16 - 6-18
Filter connector, 1-17 - 1-19
removal, 6-27
Fixed CSR address, 3-2
Floating CSR address, 3-2
how to configure, 4-8

Index

FRU procedures, 6-1 - 6-27. See also
specific component.
list, 6-1 - 6-2
Grant continuity,

1-11

Halt button, 1-6
Halt enable switch, 2-7
Halts, console program, 2-4 - 2-5
I/O distribution panel, 1-17 - 1-19
expansion space, 4-3
KA630-A CPU module, 2-1 - 2-3
bootstrap and ROM, 2-5
boot sequence, 2-5
connectors, 2-2
console I/O mode, 2-5,2-7,5-5
console program, 2-4 - 2-5
features, 2-1
halts, 2-4 - 2-5
power-up mode, 2-4, 2-8, 5-1
primary bootstrap program
(VMB), 2-5
Language inquiry mode, 2-4,2-8
LPVl1 interface module, 3-32, 3-33
current and power, 4-5
physical priority, 4-2
Mass storage device, 3-34 - 3-42
RD52 fixed disk drive, 3-37, 3-38
RD53 fixed disk drive, 3-37,3-38
RX50 diskette drive, 3-39
TK50 tape drive, 3-40 - 3-42
Mass storage device removal, 6-10
Mass storage shelves, 1-5
Memory, MS630, 2-9
Memory, on-board CPU, 2-1
MicroVAX II, deSCription, 2-1
system options, 3-1 - 3-42

MicroVAX local memory
interconnect, 2-2, 2-3
Micro VAX maintenance system
(MMS), 5-10 - 5-12
display system configuration and
devices, 5-12
display the utilities menu, 5-12
display the service menu, 5-12
exit the Micro VAX maintenance
system, 5-12
test the system, 5-12
MMS. See Micro VAX maintenance
system.
Module, bus loads, 4-5
configuration, 3-2,3-3
CSR addresses and interrupt
vectors, 4-6 - 4-8
current and power, 4-5
definition of dual- and
quad-height, 1-10
physical priority, 4-1 - 4-3
removal, 6-19, 6-20
MS630 memory module, 2-9
current and power, 4-5
Multinational character set, 2-4
On/Off switch removal, 6-8
Options
communications, 3-4 - 3-33
disk storage devices, 3-34 - 3-39
ordering, 3-1
tape storage devices, 3-40 - 3-42
Power supply, 1-13 - 1-16
current and power, 1-13
electrical distribution, 1-16
limits, 4-3, 4-5
removal, 6-23 - 6-24
voltage ranges, 1-15
Power-up mode select switch, 2-8

Index-3

Index

Q22-Bus backplane,

1-10, 1-11

RD52 fixed disk drive, 3-37, 3-38
removal, 6-10 - 6-13
RD53 fixed disk drive, 3-37,3-38
removal, 6-14 - 6-15
RD console boards, 1-8
Regulator, 1-13,4-3. See also
power supply.
Restart button, 1-6
RQDX2 disk controller, 3-34 - 3-36
current and power, 4-5
physical priority, 4-3
LED indications, 5-8
RX50 diskette drive, 3-39
removal, 6-10 - 6-15
Side panels, 1-2
removal of right side, 6-4 - 6-5
removal of left side, 6-6 - 6-7

Index-4

Signal distribution board, 1-8, 1-9
Switch, door interlock, 1-4
part number, 6-1
removal, 6-21
Switch, On/Off
removal, 6-8
Temperature sensor, location, 1-4
removal, 6-21
TK50 tape drive, 3-40 - 3-42
LED indications, 5-9
removal, 6-10 - 6-15
TQK50 controller module, 3-40
current and power, 4-5
CSR address (second TQK50), 4-6
Troubleshooting, 5-13 - 5-15
flowcharts, 5-14, 5-15
device-specific
problems, 5-13 - 5-15