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EK-163AA-IS-1

September 1988

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Document:	MicroVAX 3400 VAXserver 3400 Technical Information
Order Number:	EK-163AA-IS
Revision:	1
Pages:	120
Original Filename:

OCR Text

September 1988
The information in this document is subject to change without notice and should not be
construed as a commitment by Digital Equipment Corporation.
Digital Equipment Corporation assumes no responsibility for any errors that may appear in
this document.
The software, if any, described in this document is furnished under a license and may be used
or copied only in accordance with the terms of such license. No responsibility is assumed
for the use or reliability of software or equipment that is not supplied by Digital Equipment
Corporation or its affiliated companies.

© Digital Equipment Corporation. 1988. All rights reserved.
Printed in U.S.A.
The READER'S COMMENTS form on the last page of this document requests the user's
critical evaluation to assist in preparing future documentation,
The following are trademarks of Digital Equipment Corporation:
COMPACTape
DEC
DECmate
DECnet
DECserver
DECUS
DECwriter
DELNI
DEQNA
DESTA
DIBOL

MASSBUS
MicroVAX
PDP
P/OS
Professional
Q-bus
Rainbow
ReGIS
RSTS
RSX
RT

ThinWire
ULTRIX
UNIBUS
VAX
VAXcluster
VAXELN
VAXlab
VMS
VT
Work Processor

mamaDmO'"

Amphenol is a trademark of Amphenol.
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POSTSCRIPT is a trademark of Adobe Systems, Inc.
Tektronix is a trademark of Tektronix, Inc.
ML-S932

FCC NOTICE: The equipment described in this manual generates, uses, and may emit
radio frequency energy. The equipment has been type 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.

Contents
Preface

vii

Chapter 1 Base System Specifications
1.1
Base System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.1
Digital Small Storage Interconnect (DSSI). . . . . . . . . . . . .
1.1.2
KA640 Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
CPU Cover Panel Operation ...................... .
1.1.3
Switches .................................... .
1.1.3.1
LED Display ................................ .
1.1.3.2
Console Terminal Connector .....................
1.1.3.3
Battery Backup Unit (BBU) . . . . . . . . . . .. . . . . . . . . ..
1.1.3.4
Ethernet Logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
1.1.3.5
1.2
Base System Specifications ..........................
1.2.1
KA640-ANBA Processor Specifications. . . . . . . . . . . . . ..
1.2.2
MS650 Memory Option ...........................
1.2.2.1
MS650-AA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

1-1
1-1
1-3
1-5
1-6

1-9
1-10
1-10
1-10
1-10
1-10
1-13
1-13

Chapter 2 Option Specifications
2.1
Mass Storage Options .............................. 2-2
2.1.1
Disk Drives and Controllers. . . . . . . . . . . . . . . . . . . . . . .. 2-2
2.1.1.1
RF30 Fixed-Disk Drive ......................... 2-2
2.1.2
Tape Drives and Controllers ....................... 2-4
2.1.2.1
TSV05 Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-4
2.1.2.2
TS05 Tape Drive .............................. 2-5
TQK70 Controller ............................. 2-7
2.1.2.3
2.1.2.4
TK70 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-8
2.1.2.5
TQK50 Controller ............................. 2-10
2.1.2.6
TK50 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-11

iii

Optical Disk Drives and Controllers .................
2.1.3
2.1.3.1
KLESI Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
RV20 Optical Disk Drive. . . . . . . . . . . . . . . . . . . . . . ..
2.1.3.2
2.2
Communications Options. . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.2.1
Asynchronous Serial Controllers. . . . . . . . . . . . . . . . . . ..
2.2.1.1
CXA16 Asynchronous Multiplexer (16 lines) .........
2.2.1.2
CXB16 Asynchronou~ Multiplexer (16 lines) .........
2.2.1.3
CXY08 Asynchronous Multiplexer (8 lines) ... . . . . . ..
2.2.1.4
DFAOI Asynchronous Controller with Integral Modem.
2.2.1.5
CXF16 and CXF32 Asynchronous Controllers. . . . . . ..
2.2.1.6
DSRVB DECserver 200 .........................
Synchronous Serial Controllers . . . . . . . . . . . . . . . . . . . ..
2.2.2
DSVll Synchronous Interface . . . . . . . . . . . . . . . . . . ..
2.2.2.1
DMVll Synchronous Controller. . . . . . . . . . . . . . . . . ..
2.2.2.2
DPVll ............................ , . . . . . . . ..
2.2.2.3
KMVIA Programmable Communications Controller ...
2.2.2.4
Network Controllers. . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.2.3
2.2.3.1
DESQA Ethernet Controller .....................
DELQA Ethernet Controller .....................
2.2.3.2
2.3
Real-Time Controllers ..............................
2.3.1
DRQ3B Parallel Interface .........................
2.3.2
DRVIW Parallel Interface . . . . . . . . . . . . . . . . . . . . . . . ..
2.3.3
IEQll Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.3.4
IBQOl Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.3.5
AAVll-S Digital-to-Analog Converter . . . . . . . . . . . . . . ..
2.3.6
ADVll-S Analog-to-Digital Converter. . . . . . . . . . . . . . ..
2.3.7
KWVll-S Programmable Real-Time Clock ............
2.3.8
AXVll Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.3.9
ADQ32 Analog-to-Digital Converter. . . . . . . . . . . . . . . . ..
2.4 MRVll-D Programmable Read-Only Memory Module. . . . ..
2.5
Printer Options ...................................
2.5.1
Line Printer Subsystems . . . . . . . . . . . . . . . . . . . . . . . . ..
2.5.1.1
LPVll-SA Printer Interface .....................
2.5.1.2
LGOI Text Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.5.1.3
LG02 Text and Graphics Printer. . . . . . . . . . . . . . . . ..
2.5.1.4
LG31 Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

2-13
2-13
2-14
2-17
2-17
2-17
2-20
2-23
2-25
2-28
2-30
2-33
2-33
2-35
2-37
2-39
2-41
2-41
2-42
2-45
2-45
2-46
2-48
2-50
2-51
2-53
2-56
2-59
2-62
2-65
2-67
2-67
2-67
2-68
2-70
2-71

(

LP29 Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.5.1.5
2.5.2
Dot Matrix Printers . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.5.2.1
LA75 Companion Printer. . . . . . . . . . . . . . . . . . . . . . ..
2.5.2.2
LA100 Letterwriter . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.5.2.3
LA120 Printer!l'erminal (DECwriter III) . . . . . . . . . . ..
2.5.2.4
LA210 Letterprinter. . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.5.3
Letter-Quality Printers ...........................
2.5.3.1
LQP02 Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.5.3.2
LQP03 Printer . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . ..
2.5.4
Ink Jet Printers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.5.4.1
LJ250ILJ252 Companion Color Printers ............
2.5.5
Laser Printers ..... '. . . . . . . . . . . . . . . . . . . . . . . . . . . ..

2-73
2-77
2-77
2-80
2-82
2-84
2-87
2-87
2-88
2-93
2-93
2-97

Chapter 3 System Expansion
3.1

Determining Expansion Capacity. . . . . . . . . . . . . . . . . . . . ..

3-1

Index
Figures
1-1
1-2
3-1

CPU Cover Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Baud Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Worksheet. . . . . . . . . . . . . . . . . . . . . . . . . . ..

1-6
1-8
3-4

Tables
1-1
1-2
3-1

Device Names ....................................
Baud Rate Switch Settings ..........................
Power Requirements ...............................

1-4
1-9
3-2

Preface
This manual summarizes technical information about MicroVAX 3400 and
VAXserver 3400 systems.
The manual is organized as follows:
•

Chapter 1 describes the base system specifications, including the CPU
module and associated memory options.

•

Chapter 2 describes specifications for optional components available for
MicroVAX 3400 and VAXserver 3400 systems.

•

Chapter 3 contains information on expanding your system.

NOTE: VAXserver 3400 systems are designed to offer maximum performance
for applications that do not require timesharing. Some of the devices
and components listed in this manual are designed for multiuser systems
and may not be suitable for VAXserver systems. Contact your DIGITAL
representative if you have any questions about whether use of a specific
device is appropriate for your VAXserver system.

Conventions
The following conventions are used in this book:
Convention

Meaning
A symbol denoting a terminal key used in text and examples in this book.
For example, IBreak Iindicates that you press the Break key on your terminal
keypad. IReturn I indicates that you press the Return key on your terminal
keypad.
A symbol indicating that you hold down the Ctrl key while you press the
Ckey.

Bold

Bold type is used to indicate user input. For example:
»> BOOT MUAO
This line shows that the user must type BOOT MUAO at the "»>" prompt.

vii

Chapter 1

Base System Specifications
MicroVAX 3400 and VAXserver 3400 base system components reside in a
BA213 enclosure, with a 12-slot backplane. The base system includes a
central processor unit (CPU) module, and one to three memory modules.
The CPU module resides in slot 1 of the backplane. Memory modules can
reside in slots 2 through 4.

1.1 Base System Operation
Base system operation is based on the KA640 CPU module. The KA640
CPU module has the following components:
•

CPU chip with 1 Kbyte of cache

•

Floating-Point Accelerator (FPA) chip

•

A 4-Mbyte, 400-nanosecond, 39-bit wide memory array

•

Memory controller

•

Clock registers

•

DIGITAL Small Storage Interconnect (DSSI) bus adapter

•

Ethernet controller

•

Q-bus interface

•

Console serial line

•

Firmware

The following sections describe the DSSI bus, KA640 firmware, and the
controls on the CPU cover panel.

1.1.1 Digital Small Storage Interconnect (0551)
The Digital Small Storage Interconnect (DSSI) bus is dedicated to mass
storage devices on the MicroVAX 3400 and VAXserver 3400 systems.

Base System Specifications

1-1

The DSSI bus has the following characteristics:
•

4 Mbytes-per-second bandwidth

•

Single-ended bus transfers

•

Up to eight nodes (up to two host adapters and six mass storage devices)

•

Eight data lines

•

One parity line

•

Eight control lines

DSSI architecture features a DSSI host adapter and DSSI mass storage
devices. The DSSI host adapter, located on the KA640 CPU module, is the
interface between the DSSI mass storage devices and the CPU. The DSSI
mass storage devices, such as the RF30, contain a built-in controller.
DSSI architecture improves system performance through the following:
•

DSSI bus handles all mass storage transactions (Q-bus is free for other
activity).

•

DSSI bus is faster than the Q-bus.

•

Mass storage devices can act independently (since each device has its
own controller, several devices can work simultaneously).

The DSSI bus supports up to eight daisy-chained nodes. These eight nodes
might be one DSSI host adapter and seven DSSI mass storage devices, such
as seven RF-series disk drives.
Atypically, a DSSI mass storage device can maintain connections to more
than one DSSI adapter. Since the DSSI adapter is located on the KA640
CPU module, a DSSI mass storage device can connect to more than one
KA640 CPU module.
For example, an external DSSI cable can connect two MicroVAX 3400
systems. The DSSI bus, in this case, would consist of two DSSI host
adapters and up to six RF30 disk drives. The two MicroVAX 3400 systems
would have access to each drive on the DSSI bus.
For more information about connecting two MicroVAX 3400 systems and the
advantages of this configuration, refer to the section Dual-Host Capability,
found in the Operation manuaL

1-2 MicroVAX 3400 VAXserver 3400 Technical Information

1.1.2 KA640 Firmware
Two read-only memory (ROM) chips on the KA640 module contain
firmware. The firmware contains three major programs:
•

A console program

•

A set of self-tests for the CPU and memory

•

A primary bootstrap program (VMB)

The console program receives control whenever the processor halts. For
the KA640 CPU, a halt means only that processor control has passed to the
console program, not that instruction execution stops. The standard VAX
console functionality is emulated by executing a program in ROM, rather
than by CPU microcode or a separate console processor.
Control passes to the firmware under any of the following conditions:
•

The system is powered up

•

The Reset button is pressed

•

The Q22-bus BHALT signal is asserted (by pressing the Halt button or
by pressing the IBreak I key when the Break EnablelDisable switch is set
to enable)

•

A HALT instruction is executed

•

Halt button on the front control panel is pressed

•

A system error occurs

At Power-Up
At power-up, the system enters one of three power-up modes that are set
using the Power-Up Mode switch on the CPU cover panel. (The modes and
their meaning are described later in this chapter.) The console program
then determines the console device type and console language.

The console program then runs the self-tests for the CPU and memory. The
message
Performing normal system tests.

is displayed on the terminal. As the tests progress, a series of numbers
displays· on the console terminal. Operation . describes the power-on
sequence and shows examples of successful power-on operations. Micro VAX
Troubleshooting and Diagnostics describes possible problems that can occur
during power-on.

Base System Specifications

1-3

Ifthe self-tests are successful, the system does one of two things, depending
on whether the Break EnablelDisable switch on the CPU cover panel is set
to disable or enable.
If the Break Enable/Disable Switch Is Disabled

If the Break EnablelDisable switch is set to disable, the CPU tries to
autoboot an operating system. It locates a 128-Kbyte segment of system
memory and copies a primary bootstrap program, called VMB, from the
ROM chip into the base address plus 512. The CPU then begins executing
VMB, which attempts to bootstrap an operating system.

The system does not test all devices in search of bootable software, but
looks for a previously-selected boot device.
If you have not yet selected a boot device, the system issues a list of bootable
devices and prompts you to select a boot device from the list. Depending
on whether you type in a device name, one of two things happens:
•

If you do not type a boot device name within thirty seconds, the system
boots from the Ethernet adapter, ESAO.

•

If you type a boot device name within thirty seconds, the system boots
from that device.

For more information about this process, see Operation.

NOTE: Selecting a boot device other than the Ethernet adapter is not
appropriate for diskless and tapeless systems which must boot software over
the network.
Once you have selected a default boot device, you may change the default
boot device by using the SET BOOT device name command. To use the
command, put the system into console mode by pressing the Halt button
twice. At the >>> prompt, enter "SET BOOT device-name." Use Table 1-1
to determine the name of the boot device you want to select.

Table 1-1: Device Names
Controller Type

Controller

Device Name

DSSI

On-board CPU

DImn (fixed disks)

MSCP (Tape)

TQK70

MUmn

PROM

MRVll

PRAn

Ethernet adapter

On-board CPU

ESAO

1-4 MicroVAX 3400 VAXserver 3400 Technical Information

If the Break Enable/Disable Switch Is Enabled
If break is enabled, the console program enters console I/O mode in response

to any halt condition except the HALT instruction, including system powerup. Console I/O mode allows you to control the system by typing commands
at the console terminal.
CAUTION: Do not press the Restart button while in console mode. Doing so
destroys the system state. You will not be able to continue normal operation.

You can direct the system to boot a specific device when in console I/O mode.
Use the BOOT command, followed by the device name as listed in Table 1-1.
For example, to boot from the TK70 tape drive, issue the command BOOT
MUAO.
Typing HELP at the console prompt displays a list of all console commands.
For a complete description of the console commands, refer to the KA640
CPU Module Technical Manual.

1.1.3 CPU Cover Panel Operation
The CPU cover panel covers the CPU and first memory module in slots
1 and 2. The panel contains controls for the CPU and connectors for the
console terminal and for Ethernet cables. Two Ethernet connectors are
provided: one for standard transceiver cable and one for ThinWire cable.
The outside of the CPU cover panel contains the following components, as
shown in Figure 1-1.
•

Break EnablelDisable switch

•

Power-Up Mode switch

•

LED display

•

Modified modular jack (MMJ) for the console terminal serial line unit
(SLU)

•

Ethernet ports:
One BNC-style connector for ThinWire cable
One 15-pin connector for standard Ethernet transceiver cable

The inside of the cover panel (shown in Figure 1-2) contains:
•

Baud rate switch (discussed in the next section)

•

Battery backup unit (BBU) for the time-of-year clock and language
selection (see Section 1.1.2.4)

Base System Specifications

1-5

•

Ethernet logic which supports selection of the standard Ethernet port
or the ThinWire port.

1.1.3.1 Switches
The four switches on the CPU panel are the Break EnablelDisable switch,
the Power-Up Mode switch, Ethernet connector switch, and the baud rate
switch. The operation of these switches is discussed on the following pages.
Figure 1-1: CPU Cover Panel

~LED

.~II

DISPLAY

BREAK ~.
ENABLE!
~
POWER-UP
DISABLE
6 '®@+-,MODESWITCH
SWITCH
©I:r
MODIFIED

~ MODULAR

JACK

STANDARD
ETHERNET
CONNECTOR

00
00
00
00

~
og

@+-.THINWIRE
(0
ETHERNET
~

CONNECTOR

ETHERNET
CONNECTOR
SWITCH
MLO-000717

1-6 MicroVAX 3400 VAXserver 3400 Technical Information

Break Enable/Disable Switch (2-position slider)
Switch Position

Function

Dot outside circle (down)

Break disable (factory setting). With the switch in this
position, pressing the iBreaki key on the console terminal has
no effect on the system. On power-up or after a reset, the
system attempts to load software from one of the boot devices
at the completion of self-tests.

Dot inside circle (up)

Break enable. With the switch in this position, pressing the
iBreaki key on the console terminal halts the CPU. On power-

up or after a reset, the system enters console 110 mode at the
completion of self-tests.

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

Mode

Human profile

Language inquiry.
If the console terminal supports
Multinational Character Sets (MCS), the user is prompted for
language on every power-up and after a reset. Until a default
boot device is selected, the user is prompted for a boot device.
Full start-up diagnostics are run.
.

Arrow

Run (factory setting). If the console terminal supports
Multinational Character Sets (MCS), the user is prompted for
language and for a boot device on initial power-up. Until a
boot device is selected, the user is prompted for a boot device
at each power-up. Once a boot device is selected, the user is
prompted for language and for boot device at power-up and
after a reset only if the battery backup has failed. Full startup diagnostics are run.

T in a circle

Test. ROM programs run wraparound serial line unit (SLU)
tests. A loopback connector is required.

Ethernet Connector Switch
This 2-position switch enables you to choose the type of Ethernet
connection. In the up position, the connector for a standard Ethernet
transceiver cable is active. In the down position, the connector for a
ThinWire Ethernet cable is active. Each connector has an associated
indicator light that glows to indicate the active connector.
Baud Rate Switch (8-position rotary)
The baud rate switch is located on the inside of the CPU cover panel, as
shown in Figure 1-2. Use the following procedure to remove the CPU cover
panel and change the baud rate.

Base System Specifications 1-7

Figure 1-2: Changing the Baud Rate

BAUD RATE
SELECT
SWITCH

ETHERNET
HARDWARE
ADDRESS

MLO-000692

Turn off the system and remove the front panel of the enclosure.

Using a Phillips-head screwdriver, push in and turn counterclockwise
the quarter-turn screws at the top and bottom of the CPU cover panel
until the screws pop free.

Place one hand at the top ofthe panel, and carefully pull out the bottom
of the panel with the other hand.

With your other hand, carefully pull out the top of the panel. Because
cables connect the cover panel to the CPU module, you cannot pull the
panel very far from the module.

1-8 MicroVAX 3400 VAXserver 3400 Technical Information

5. Tilt the top of the panel out as far as possible. The baud rate switch,
a white circular switch, is just inside the top of the panel. A number
from 0 to 7 is visible. See Table 1-'2 to determine the correct switch
setting for the baud rate you want. Rotate the switch to the desired
setting.

Table 1-2: Baud Rate Switch Settings
Setting

Baud Rate

300

600

1200

2400

4800

96001

19200

38400

1Factory setting

6. Replace the cover panel by pressing the bottom of the panel back into
position. While firmly holding the bottom in place with one hand, gently
push the top until it locks into position.
7. Push in and turn clockwise the quarter-turn screws at the top and
bottom of the cover panel until the screws are tight.
You can now turn on the system and the new baud rate will be in effect.
1.1.3.2 LED Display
The red LED display on the CPU cover panel displays a numerical sequence

(in hexadecimal numbers) as the system runs its self-test diagnostics and
bootstrap routine. The countdown begins with F (15 in decimal) and
ends with 3 if the processor enters console 110 mode (breaks enabled).
The countdown ends with 0 if the processor has successfully booted
(breaks disabled). Simultaneously, a countdown appears on the console
terminal. See Operation for examples of successful power-on sequences,
and MicroVAX Troubleshooting and Diagnostics for examples of problems
you may encounter during power-on.

(
Base System Specifications

1-9

1.1.3.3 Console Terminal Connector
The console cable is connected to the CPU cover panel through a modified
modular jack (MMJ). An internal cable connects the MMJ, switches, and
LED display to the CPU module.
1.1.3.4 Battery Backup Unit (BBU)
A battery backup unit (BBU), located on the inside of the CPU cover
panel, maintains the correct time-of-year and language selection on the
CPU module when power to the system is turned off. Both the time-of-year
and language selection code are lost if the BBU fails. The BBU provides
power for up to seven days if the system power is turned off.
1.1.3.5 Ethernet Logic
A printed circuit board and switch support the two Ethernet ports.

1.2 Base System Specifications
The base system includes a KA640-AAlBA processor and one to three
MS650 memory modules.

1.2.1 KA640-AA/BA Processor Specifications
MicroVAX 3400 systems use the KA640-AA processor. VAXserver 3400
systems use the KA640-BA. The only difference is the -AA is for multiuser
systems and the -BA is for single-user systems.
Central Processor

Specification

Clock rate

20 MHz

Data path width

32 bits

Number of data types

Hardware: 9
Software emulated: 7

Number of instructions

Hardware: 272
Software emulated: 32

General purpose registers

16 (32-bit wide)

Addressing modes

General register: 8
Program counter: 4
Index: 9

1-10 MicroVAX 3400 VAXserver 3400 Technical Information

Central Processor

Specification

PDP-ll compatibility mode

Emulated in software

Time bases

Time-of-year clock: 1 (battery backed up)

Interval timer: 1 (10 milliseconds)
Programmable timers: 2

110 bus interface

One Q22-bus interface with 8192
entry "scatter gather" map registers

Termination

240n

Memory Management and Control
Page size

512 bytes

Virtual address space

4 gigabytes

Physical memory space

28 Mbytes

Number of memory modules

3 maximum

Performance

Specification

Instruction prefetch buffer size

12 bytes

Cache
Size

1 Kbyte

Speed

100 nanoseconds

Associativity

2-way set

Translation buffer
Size

28-entry

Associativity

Fully associative

Q22-bus address translation map cache
Size

16-entry

Associativity

Fully associative

110 bus buffer size
Input

32 bytes

Output

4 bytes

Base System Specifications

1-11

Performance

Specification

Maximum 110 bandwidth
DMARead

2.4 Mbytes/second

DMA Write

3.3 Mbytes/second

Ethernet Port

Specification

Supported protocols

Ethernet V2.0

Supported media types

Standard Ethernet and ThinWire Ethernet

Buffer size

64 Kbytes

DIGITAL Small Storage Interconnect (DSSI) Port
Maximum number of devices supported
off the CPU

Data path width

8 bits

Maximum bandwidth

4 Mbytes/second

Buffer size

128 Kbytes

Console Serial Line

Specification

Interface standards

EIA RS-423-AlCCITT V.10 X.26
EIA RS-232-C/CCITT V.28
DEC 423

Data format

1 start bit, 8 data bits, 0 parity bits, 1 !}top bit

Baud rates

300,600,1200,2400,4800,9600,19200,38400

Ordering Information
Included as part of base system

1-12 MicroVAX 3400 VAXserver 3400 Technical Information

Configuration Information
Form factor

Quad height

Power requirements

+5 Vdc, 6.0 A
+12 Vdc, 0.24 A

Power consumption

32.88 W

Bus loads

3.5 ac
1.0 dc

Operating System Support
VMS

Version 5.0-2A and later

ULTRIX-32

Version 3.0 and later

VAXELN

Version 3.2 and later

Diagnostic Support
MicroVAX Diagnostic Monitor

Revision 2.3 and later

Self-tests

Yes