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EK-TC44I-IM-002

November 1993

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Document:	TC44-AA/BA STI to StorageTek 4400 ACS Interconnect Hrdw Inst
Order Number:	EK-TC44I-IM
Revision:	002
Pages:	34
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OCR Text

TC44-AA/BA STI to
StorageTek 4400 ACS
Interconnect Hardware
Installation Guide
Order Number EK–TC44I–IM–002

Digital Equipment Corporation
Maynard, Massachusetts

Edition, November 1990
Edition, December 1993

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.
No responsibility is assumed for the use or reliability of software on equipment that is not
supplied by Digital Equipment Corporation or its affiliated companies.
Restricted Rights: Use, duplication, or disclosure by the U.S. Government is subject to
restrictions set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer
Software clause at DFARS 252.227-7013.

© Digital Equipment Corporation 1993.
All Rights Reserved.
The following are trademarks of Digital Equipment Corporation: Digital, VAX, and the
DIGITAL logo.
The following are third party trademarks:
StorageTek is a registered trademark of Storage Technology Corporation.
IBM is a registered trademark of International Business Machines Corporation.
UL is a registered trademark of Underwriters Laboratories.
CSA is a registered trademark of Canadian Standards Association.

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
operating 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 Introduction
1.1

Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
1.1.1
Preinstallation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
1.1.2
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
1.1.3
Static Electricity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5

Chapter 2 Installation
2.1
2.2
2.3

2.4

2.5

Unpacking the TC44–AA/BA STI to FIPS-60 Interconnect . . . . . . . . . . . . . . . . . . . . . . 2–1
Installing the TC44–AA/BA STI to FIPS-60 Interconnect in a Cabinet . . . . . . . . . . . . . 2–3
Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
2.3.1
A/B Port Select and Fault Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
2.3.2
The CE Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
2.3.3
TC44 Adapter Module Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
Selecting Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
2.4.1
Configuring the TC44–AA/BA STI to FIPS-60 Interconnect . . . . . . . . . . . . . . . 2–7
2.4.1.1
Installing Loopback Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
2.4.1.2
Turning the Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
2.4.1.3
Turning the Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
2.4.1.4
Selecting a Base Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
2.4.1.5
Masking Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–11
2.5.1
Selecting Control Unit Transfer Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–11
2.5.2
Connecting the FIPS-60 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–11
2.5.3
Connecting the STI/HSC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–13

iii

Chapter 3 Verification and Error Indications
3.1

3.2

Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
3.1.1
Power-Up Diagnostics Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
3.1.1.1
Kernel Error Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
3.1.1.2
FIPS Error Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
3.1.1.3
HSC Error Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
3.1.1.4
Front Panel Error Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Advanced Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3

Appendix A Specifications
A.1
A.2
A.3
A.4
A.5

Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–1
A–1
A–2
A–2
A–2

Figures
1–1
1–2
1–3
1–4
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
2–9

TC44–AA/BA and TA92 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
TC44–AA/BA and StorageTek ACS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Major System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Front and Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
Unpacking the TC44 Interconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Cabinet Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
The CE Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
TC44 Adapter Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
AC Power Cord and Voltage Select Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
Connecting the FIPS-60 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–12
Redundant System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–14
Connecting the STI/HSC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–15

Tables
1
2–1
3–1
A–1
A–2
A–3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
STI/HSC Cable Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–13
Front Panel Fault Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
TC44–AA/BA Enclosure Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–1
Voltage, Frequency and Power Consumption Specifications . . . . . . . . . . . . . . . A–1
Temperature, Humidity and Altitude Specifications . . . . . . . . . . . . . . . . . . . . . A–2

Preface

This manual provides the information necessary for installing and performing basic troubleshooting on the TC44 Standard Tape Interface (STI) to Federal Information Processing
Standard (FIPS–60) Interconnect.
The information in this manual is for the Digital-trained Customer Services technician
qualified to service TA9x and HSC units, and is intended to address the installer’s need
for information on the TC44 Interconnect.

Structure of the Manual
Chapter 1 provides general information and describes the physical characteristics of the
TC44 Interconnect. This chapter also contains the electrical, mechanical, and environmental
specifications.
Chapter 2 provides information on installing and configuring the TC44 Interconnect.
Chapter 3 provides information on basic error interpretation and troubleshooting.
Appendix A provides physical, electrical, and environmental specifications.

Related Documentation
•

TC44–AA/BA STI to StorageTek 4400 ACS Interconnect Maintenance Manual (EK–TC44I–TM)

•

HSC Installation Manual (EK–HSCMN–IN)

vii

Conventions
Table 1 lists the conventions observed in this manual.
Table 1:
Convention

Meaning

NOTE

Highlights important information or provides explanations.

CAUTION

Highlights areas that could cause damage to the equipment.

a,b,c

Lowercase italics used in CE Panel Display examples represent variables that
change based on the type of configuration.

key

Press the specified key. For example, Return indicates that you should press
the Return Key.

viii

Chapter 1
Introduction
The TC44–AA/BA two channel Digital interface (STI) to IBM® interface (FIPS–60)
Interconnect is designed to allow a VAX system to access a Storage Technology Automated
Cartridge System (StorageTek®ACS) or a Digital TA92 standalone tape subsystem.
When configured with the StorageTek ACS, client-level software is loaded on the VAX
to communicate to the tape library server over an Ethernet link. This software translates
the VAX operating system tape commands into StorageTek ACS commands to control the
library robotics. Simplified configuration diagrams are shown in Figure 1–1 and Figure 1–2.
Figure 1–1: TC44–AA/BA and TA92

Host
System

Star
Coupler
Host
System

Host
System

STI
Cables
HSC

TC44
Interconnect

FIPS-60
Cables

Digital
TA92
LJ-03697-TI0

Introduction 1–1

Figure 1–2: TC44–AA/BA and StorageTek ACS
Host
System
Client
Software

Star
Coupler
Host
System

HSC

Data
Path

Host
System
STI Cables

Control
Path

Host
System

Ethernet

StorageTek
Library
Server

TC44
Interconnect

FIPS-60 Cables

Library
Management
Unit
(LMU)

Library
Control
Unit
(LCU)

Library
Storage
Module
(LSM)

Cartridge
Drive
(CD)

Control
Unit

LJ-03698-TI0

The TC44 Interconnect hardware is a standard rack-mountable, user-transparent system.
The major system components are listed below (See Figure 1–3):
•

The FIPS–60 converter module

•

Two TC44 Adapter Module

1–2 Introduction

Figure 1–3: Major System Components

TC44 Interconnect
TC44
Adapter
STI Cables
TC44
Adapter

FIPS-60
Converter
Module

Left Bus and Tag
FIPS-60 Cables
Right Bus and Tag

LJ-03699-TI0

The following supporting components are housed in the same enclosure:
•

One power supply

•

Two fans

•

One voltage select switch

•

One customer engineer (CE) panel

Introduction 1–3

Figure 1–4: Front and Rear View

Left Port A/B
Select Switches/Lights
Right Port A/B
Select Switches/Lights

TC4
A

Fault
Switch/Light

CE Panel

Front

STI Connectors (4)
Fans

Fans
S TR

Voltage Select
Switch

L
A
B

R
A

Circuit Breaker

AC Power Jack

FIPS-60
Connectors (4)
Rear

MKV-X4066-90

1.1 Site Preparation
Computer systems and peripherals may be affected by static discharge, temperature changes,
and humidity. These conditions may cause poor operation and affect the dependability of the
equipment. Good site planning can minimize these effects and make the installation process
easier.

1–4 Introduction

1.1.1 Preinstallation Considerations
Space
It is recommended that the TC44 Interconnect be installed in a cabinet. Allow enough
space so the cabinet doors can be opened to service the unit and the air circulation is not
obstructed. Run the power cord and data cables in areas where no one will step on or trip
over them and ensure that all the STI and FIPS–60 cables reach the cabinet without needing
to be stretched.
Note
If the FIPS–60 cables are routed prior to installation of the hardware, ensure that
the dark colored connectors are located where the TC44 Interconnect will be installed
and the light colored connectors are located where the control unit will be installed.

Power
Primary power is provided and installed by the customer. This circuit must meet all national
and local codes that apply to it. It is important that the TC44 Interconnect receive well
regulated power. Do not connect the TC44 Interconnect to a circuit that supplies power
to equipment such as air conditioners, office copiers or coffee pots. If power disturbances
cannot be prevented and they adversely effect the TC44 Interconnect, it is the customer’s
responsibility to provide the necessary power conditioning equipment to ensure the correct
operation of the TC44 Interconnect.
Because the TC44 Interconnect requires 3.0 A maximum at 120 Vac, it may be plugged into
the same circuit as other system components, as long as the total current does not exceed
the circuit capability. This circuit must be stable without any electrical noise, and provide a
good system ground. Do not use extension cords.

1.1.2 Environment
The system that controls the environment should be capable of maintaining the recommended
temperature and humidity ranges year-round. (See Section A.3.) This system should filter
the air to remove dust and other particles, as well as provide an even distribution of the air
to prevent hot areas in the room where the TC44 Interconnect is installed. Keep the TC44
Interconnect away from heaters and direct sunlight.

1.1.3 Static Electricity
Static discharge is a common problem for any electronic device and may cause lost data,
equipment downtime, and other problems. The most common source of static electricity is
the movement of people in contact with carpets and clothing. Low humidity allows a large
amount of static charge to build up. To minimize problems with static electricity:
•

Maintain more than 40% relative humidity

•

Place the TC44 Interconnect away from the heavy traffic areas

Introduction 1–5

Chapter 2
Installation
This chapter contains all the necessary information for a successful installation and
subsequent checkout of the TC44 Interconnect. No assembly of equipment is required.
The topics covered in this chapter are:
•

Unpacking

•

Installation

•

Controls and indicators

•

Selecting configurations

•

Cabling

2.1 Unpacking the TC44–AA/BA STI to FIPS-60 Interconnect
Place a check mark ( ) in each box as you complete the task:
Open the shipping carton and check the contents. Save the carton and shipping material.
Remove the shipping restraint from the top of the TC44 Interconnect.
Remove the TC44 Interconnect from the shipping carton.
Remove the TC44 Interconnect from the plastic bag.

Installation 2–1

Also contained in the shipping carton are:
•

1 pair of mounting rails with hardware

•

1 power cord

•

4 terminators (2 bus and 2 tag)

•

1 installation guide

•

2 loopback connectors (1 bus and 1 tag)

Figure 2–1 shows the contents of the TC44 Interconnect.
Figure 2–1: Unpacking the TC44 Interconnect

EK-TC44I-IM
12-34275-01 (69684-010)

Installation Guide

TAG Loopback
TC44-AA/BA

12-34276-01 (69684-009)

1-TC44-AA/BA

Bus Loopback

TC 44
A

12-34271-01

17-00083-09

1-Power Cord
120 V

(78884-002)

2 Bus Terminators
12-34272-01

(78884-001)

2 Tag Terminators

2-Shipping
Restraints

74-41069-02

1-Mounting Rail (right)

74-41069-01

1-Mounting Rail (left)

90-07786-01

8-Screws, 10-32

90-00063-39

8-Nuts, J Type 10-32
LJ-03701-TI0

If there are any missing items:
Identify the missing pieces.
Contact your sales representative and delivery agent.
If there is any damage:
Identify the damaged parts.
Contact your sales representative and delivery agent.

2–2 Installation

2.2 Installing the TC44–AA/BA STI to FIPS-60 Interconnect in a
Cabinet
Place a check mark ( ) in each box as you complete the task:
Verify that the TC44 Interconnect and rails fit into the rack (Figure 2–2).
Install the two mounting rails inside the rack as shown in Figure 2–3.
Slide the TC44 Interconnect into the cabinet on the rails.
Install and secure the four mounting screws in the front panel.
Figure 2–2: Cabinet Requirements
Side View
30" Front to Back
25" Rail to Rail
2"
18.5"

Front
Cabinet
Door

Rear
Cabinet
Door

Mounted to
Front of
Rail

TC44−AA/BA

CE Panel
Cover 0.5"
in Front of
Rail

FIPS
Cabling

Support Option

0.5"
22"
0.5"

5" to 6"
For Cabling
mkv−r2047−90

Installation 2–3

Figure 2–3: Rack Mounting
Mounting Rails
Typical 2 Places

10-32
Screws

TC4
A

10-32 Screws
Typical 4 Places
10-32
J Nut
Typical
8 Places

MKV-X4077-90

2–4 Installation

2.3 Controls and Indicators
The section describes the various input and output devices in the TC44 Interconnect.

2.3.1 A/B Port Select and Fault Switches
The front panel of the TC44 Interconnect has two sets of switches, one on the left and one
on the right.
•

The left set of switches enables or disables access to the tape drives connected to the STI
ports located in the top right corner of the rear panel and the FIPS-60 ports located in
the top center of the rear panel.

•

The right set of switches enables or disables access to the tape drives connected to the
STI ports located in the bottom right corner of the rear panel and the FIPS-60 ports
located in the bottom center of the rear panel.

Each TC44 Adapter Module will communicate with up to four tape drives. Each TC44
Interconnect contains two adapters, so it can access up to eight tape drives. The eight tape
drives are numbered consecutively starting from a base address that is selected using the CE
Panel. The left TC44 Adapter Module uses drives numbered base address + 0, base address
+ 2, base address + 4 and base address + 6. The right TC44 Adapter Module uses drives
numbered base address + 1, base address + 3, base address + 5, and base address + 7.
When set to the on (in) position, the port select A or B switch allows the Hierarchical Storage
Controller (HSC) to access port A or B. When port select A and B switches are enabled, the
TC44 Adapter Module samples each port until one receives a command to go on line. Until
a port goes on line, communications with the HSC are limited to very few commands.
Placing the port select switch in the off (out) position with the port on line causes the
formatter to alert the HSC. After completing the current operation, the HSC disconnects the
port and places it off line.
Each switch has an internal LED that is used to light the switch cap. The port select LED
lights if the port is on line or if an error has been detected and the fault switch has been
pressed. The Fault LED lights when a potentially fatal error has been detected in the
formatter. (Even though an error has occurred, the formatter still attempts to communicate
to the HSC per the STI Specification. See Chapter 3 for additional error information.)
Note
Unless there is a problem, never release the A or B Port Select switches if the port is
active. An active port is indicated when an A or B Port Select switch is lit.

Installation 2–5

2.3.2 The CE Panel
The customer engineer (CE) panel is the primary maintenance tool for the TC44 Interconnect.
It is used to:
•

Set a logical base drive address

•

"Mask" drives that the TC44 Interconnect cannot use because they are allocated to other
systems connected to the FIPS–60 channel

•

Perform loopback diagnostics

•

Display configuration and status information

Figure 2–4: The CE Panel
Right Readout

Left Readout
Readout

Base

Diag

Entr

Clr

Yes

Hex Keypad

Command Keys

TC4
A

CE Panel
MKV-X4067-90

2–6 Installation

2.3.3 TC44 Adapter Module Status LEDs
Each TC44 Adapter Module contains three LED indicators. These LEDs can be seen by
looking through the right side of the grill located in the front panel. The top set of LEDs
display the status of the left TC44 Adapter Module and the bottom set displays the status of
the right TC44 Adapter Module. Figure 2–5 shows the location of the LEDs and Chapter 3
describes each of them.
Figure 2–5: TC44 Adapter Module

FIPS
LED

Kernel
LED

HSC
LED
Left
TC44 Adapter Module

Right
TC44 Adapter Module

R
HSC
LED
Kernel
LED
Viewing
LEDs
FIPS
LED
LJ-03700-TI0

2.4 Selecting Configurations
Each TC44 Interconnect can communicate with up to eight tape drives (four per TC44
Adapter Module). It is important to determine which drives will be connected to the TC44
Interconnect prior to setting up the entire configuration because the TC44 Interconnect
cannot share any of its tape drives with other hosts. Once eight or fewer tape drives have
been selected and they are no longer accessible by any other systems, you may begin to set
up the configuration.

2.4.1 Configuring the TC44–AA/BA STI to FIPS-60 Interconnect
The TC44 Interconnect must be powered up and configured prior to being connected to an
active channel.

Installation 2–7

2.4.1.1 Installing Loopback Connectors
Two loopback connectors are included with each TC44 Interconnect, one BUS loopback and
one TAG loopback. This means only one channel can be configured or tested at any time.
Before powering up the TC44 Interconnect install the loopbacks on the top two connectors to
use the left channel or install them on the bottom two connectors to use the right channel.
2.4.1.2 Turning the Power On
Operating voltage is present before shipment. If the voltage selected is not compatible with
the site power, set the switch to the correct voltage as shown in Figure 2–6.
The TC44 Interconnect does not have a power switch. To power up the unit, plug in the
power cord. When connecting the power cord for the first time, perform the following steps:
1. Make sure the Voltage Select switch is set to the voltage required at your site.
2. Remove and discard the safety tape.
3. Plug the correct power cord into the power plug on the unit.
When power is applied the power-up diagnostics will be executed and the status of the tests
are output to the TC44 Adapter Module LEDs and the CE Panel Display. If the diagnostics
run successfully, the following events will occur:
•

The LEDs on the TC44 Adapter Module will light sequentially and the CE Panel
hardware and software revisions will be displayed on the CE Panel display.

•

All the LEDs will go out and the microprocessor kernel LED will begin blinking to
indicate that the microprocessor kernel is operational. At the same time the message
"PWRUP OK" will be displayed on the left side, right side, or both sides of the CE Panel
display, depending which TC44 Adapter Module is connected to a channel or a set of
loopbacks.

•

The FIPS LED will light and remain on, indicating an operational status.

•

The HSC LED will light and remain on. If a loopback is installed on that TC44 Adapter
Module then this indicates the internal circuits are operational. If an active channel is
connected to that TC44 Adapter Module then this indicates a valid connection to the
HSC.

If the power-up diagnostics do not execute successfully, then go to Chapter 3 to perform basic
troubleshooting.
2.4.1.3 Turning the Power Off
Before removing the power cord to turn the power off, make sure that none of the A or B
Port Select switches are lit (indicating activity on the port). If a switch is lit, wait until it
goes out. When all activity on the ports has stopped, disable the ports by placing the A and
B Port Select switches in the off (out) position. The TC44 Interconnect is now ready to be
unplugged.

2–8 Installation

Figure 2–6: AC Power Cord and Voltage Select Switch

Voltage Select Switch

240

AC Power Cord

12 0 V A

120

Safety Tape
MKV-X4071-90

2.4.1.4 Selecting a Base Address
To set the base address:
1. Slide the CE Panel out of its pocket and press the Base key.
2. When the message BASE ADDRESS IS a :CHANGE? appears on the display press Yes .
3. The message NEW BASE ADDRESS? will be displayed. Input the new base address and
press Entr . The new address will be displayed as BASE ADDRESS: b.
2.4.1.5 Masking Drives
The TC44 Interconnect requires that it be the only device that has access to the drives
its cluster has been allocated. Problems will occur if other hosts are allowed to use the
drives that have been allocated to the cluster using the TC44 Interconnect. Drive Masking
was developed so the TC44 Interconnect would not try to communicate to drives it was
not allocated. Drive Masking configures the TC44 Adapter Module to send back a "drive
not there" status to the hierarchical storage controller (HSC) and it will never initiate
communications to the "masked" drives over the FIPS channel. This allows other hosts to
use the masked drives.
When using a TA92, if a tape drive does not exist at one or more of the eight addresses, it
must be masked out or the TC44 Interconnect will not pass self-test when it is connected to
the channel.

Installation 2–9

Note
Even if the TC44 Interconnect is not using all eight drives a block of eight contiguous
drive addresses must remain available on the HSC, starting from the base address
selected for the TC44 Interconnect.

Follow this procedure to mask off drives:
1. Disable the STI ports by putting the A and B Port Select switches in the off (out) position.
2. Install the loopback connectors on the channel that controls the drives to be masked off
(Section 2.3.1).
3. Slide the CE Panel out of its pocket and select diagnostics by pressing Diag .
4. To select the left adapter, press Yes when USE LEFT ADAPTER? appears on the display.
To select the right adapter, press No when USE LEFT ADAPTER? appears on the display.
5. Press D followed by Entr . MY DRIVES a, b, c, d will appear, where "a,b,c,d" are the
drives that are allocated to the TC44 Adapter Module.
6. Pressing the drive number followed by Yes will enable the drive, and No will disable
or mask the drive. The display will then show its latest drive selection configuration.
Continue to select/deselect drives until the desired combination is reached. (At least one
drive has to be selected at all times.)
7. Select diagnostics again by pressing Diag to leave the drive selection and return to the
main menu.
8. If more drives must be masked from the other TC44 Adapter Module turn the TC44
Interconnect power off, move the loopback connectors to the other FIPS–60 channel, turn
the TC44 Interconnect power on and run steps 2 through 7 again.
9. When the drives are masked out as required turn the TC44 Interconnect power off and
remove the loopback connectors.
Note
Digital does not recommend sharing access to the Storage Technology control units
with other hosts. Should it be necessary to do this, make sure that no other system on
the channel has access to the drives that have been allocated to the cluster connected
via the TC44 Interconnect (this is usually accomplished by using the "vary offline"
command on the non-Digital hosts). If the masking is not done correctly, data may be
lost and unpredictable operation will result.

2–10 Installation

2.5 Cabling
The system manager will determine the physical configuration of the system.

2.5.1 Selecting Control Unit Transfer Speed
It is beyond the scope of this manual to discuss the details of setting up a Storage Technology
or Digital tape subsystem. When installing the TC44 Interconnect with Storage Technology
equipment it is recommended that the installation be a joint effort between the Storage
Technology and Digital Customer Service Engineers. When installing a TA92 configuration,
review its documentation for installation and configuration information.
In order to setup a Storage Technology Control Unit or a Digital TA92 correctly, the channel
transfer speed must be set to 3 MBytes/second streaming. In some cases this is equivalent
to a setting of "0D" and in other cases it is "00" The correct settings can be determined by
reading the documentation for the control unit being configured.

2.5.2 Connecting the FIPS-60 Cables
If both channels are being used there will be two pairs of standard blue FIPS channel cables.
They have 50-pin keyed connectors on each end and a maximum length of 122 meters (400
feet). They connect the TC44 Interconnect to a Storage Technology control unit or Digital
TA92.
To connect the FIPS-60 cables (Figure 2–7), perform the following steps:
1. Remove the protective caps from the four FIPS-60 connectors on the rear of the enclosure.
2. Inspect the enclosure connectors and cable end connectors for bent pins. Straighten
them, if necessary.
3. Tag the individual cables "R BUS," "R TAG," "L BUS," and "L TAG" at both ends. (This
will prevent confusion during installation, or when removing these cables for loopback
testing.)

Installation 2–11

Figure 2–7: Connecting the FIPS-60 Cables

Left Tag Connector
STI

L
A
B

T
A
G

A
B
U
S

R
T
A
G

Left Bus Connector
B
U
S

Right Tag Connector
Retaining Screw

Right Bus Cable
MKV-X4069-90

CAUTION
Use extreme caution when performing steps 4, 8, and 10 because a misalignment
can damage the connector pins.

Note
Ensure that the dark colored connectors of the FIPS-60 cables are connected to
the TC44 and the light colored connectors are connected to the control unit.

4. Connect the right bus cable by pressing the dark colored end into the bottom connector
at the center rear of the cabinet. (Note that the narrow side is up and the retaining
screw is on the bottom.)
5. Secure the connector in place by tightening the connector retaining screw (slotted).

2–12 Installation

6. Repeat the previous two steps with the right tag cable (the next higher one on the
cabinet).
7. Follow this procedure again to install the left tag cable, and then the left bus cables.
8. Connect the light colored connector ends to the appropriate plugs on the Storage
Technology control unit or Digital TA92.
9. Secure the connector in place by tightening the connector retaining screw (slotted).
Note
The FIPS–60 Interface must be terminated at the Storage Technology control
units. The TC44 Interconnect will not operate properly if the channel is connected
to multiple Storage Technology control units.

10. When working with a Storage Technology control unit install the terminators on the
signal-out ports.
11. Secure the terminator in place by tightening the connector retaining screw (slotted).

2.5.3 Connecting the STI/HSC Cables
The TC44 Interconnect connects to an HSC by means of Digital’s standard interface (SI)
cables, which come in various lengths from 3 meters (10 feet) to 24.4 meters (80 feet). See
Table 2–1.
Table 2–1: STI/HSC Cable Information
Part Number

Length

BC26V-10

3.05 meters (10 feet)

BC26V-25

7.62 meters (25 feet)

BC26V-50

15.24 meters (50 feet)

BC26V-80

24.38 meters (80 feet)

If there is one HSC, connect the "A" port only. With two HSCs, use both "A" and "B" ports
for a redundant configuration (Figure 2–8).
Verify that the following HSC setup has been performed:
1. The K.SI module(s) is installed in the slot closest to the CPU subsystem.
NOTE
The TC44 Interconnect works only with the L0119-YA D/T K.SI cards and not
with the L0108-YB K.STI card.

2. The K.SI card is configured for TAPE (the default is DISK).

Installation 2–13

Figure 2–8: Redundant System Configuration
HSC
K.SI
K.SI
(SI)
Cables

(SI)
Cables

HSC
K.SI
K.SI

TC44

M24
Cartridge
Drive

A|B

Odd

Even

Odd

Even

Channel Adapters

M20
Control Unit 0

Buffer
Memory

Local

Remote

Local

Remote

TC44

M24
Cartridge
Drive

Transport 0

Transport 1

Transport 2

Transport 3

Transport 3
MKV−R4000−90

2–14 Installation

To connect the STI/HSC cables (Figure 2–9), perform the following steps:
1. Tag the individual cables "RB," "RA," "LB," and "LA" at both ends. (This will prevent
confusion when removing these cables.)
2. Connect the right "A" cable by pressing it into the bottom "A" connector at the left rear
of the cabinet. (Note the key pin position.)
Figure 2–9: Connecting the STI/HSC Cables

STI

L
A
B

R
A
B

Left "A" Cable

Right "B" Cable

MKV-X4068-90

3. Secure the connector in place by tightening the two connector retaining screws (Phillips).
4. Repeat the previous two steps with the right "B" cable (the next lower one on the cabinet).
5. Follow this procedure to install the left "A" and "B" cables.
6. Be sure that the HSC requestor cards are in place and have been properly configured.
See the HSC Installation Manual (EK-HSCMN-IN).
The configuration is ready to be brought on line. Refer to Section 2.4.1.2 to turn the TC44
Interconnect power on. If problems occur, refer to Chapter 3 for basic troubleshooting
instructions.

Installation 2–15

Chapter 3
Verification and Error Indications
This chapter contains information on basic installation troubleshooting for the TC44
Interconnect.

3.1 Basic Troubleshooting
Basic troubleshooting consists of performing the corrective actions indicated by error codes
reported by the CE panel display, the LEDs on the front panel, or by messages on the host
system.
For additional information on error codes, service aid diagnostics, and field replaceable unit
replacement, see the TC44-AA/BA STI to StorageTek 4400 ACS Interconnect Hardware
Maintenance Manual (EK-TC44I-TM).

3.1.1 Power-Up Diagnostics Errors
At power-up, the display on the CE panel shows the hardware and software versions of the
CE Panel. After approximately 30 seconds the diagnostics should complete and the message
"PWRUP OK" should be displayed on both halves of the CE Panel display (if both channels
are connected). If there is a fault, follow the steps below based on the TC44 Adapter Module
status LEDs (Figure 2–5) and the A/B Port Select Switches (See Table 3–1).
3.1.1.1 Kernel Error Indication
The microprocessor kernel failure is indicated by a failure of the center LED to light, and
means that the associated TC44 Adapter Module must be replaced. See the TC44-AA/BA
STI to StorageTek 4400 ACS Interconnect Hardware Maintenance Manual (EK-TC44I-TM)
for replacement procedures.

Verification and Error Indications 3–1

3.1.1.2 FIPS Error Indication
If the FIPS LED does not blink, the data connection to a channel has not been made. If the
other TC44 Adapter Module is operating correctly, isolate the problem by performing the
following steps:
1. Turn the TC44 Interconnect power off.
2. Swap the FIPS cables and turn the TC44 Interconnectpower on.
If the problem has moved to the other board, the problem is in the FIPS-60 cables or the
control unit.
If the fault indication persists, the problem is internal to the TC44 Interconnect enclosure
(cables or board). See the maintenance manual for further troubleshooting and replacement
procedures.
3.1.1.3 HSC Error Indication
If the HSC LED does not blink, the connection to a valid channel has not been made. Note
that a fault indication in the FIPS LED will not allow the HSC power-up diagnostics to start.
If the other TC44 Adapter Module is operating correctly, isolate the problem by performing
the following steps:
1. Turn the TC44 Interconnect power off.
2. Remove the suspect pair of STI cables from the rear of the TC44 Interconnect enclosure.
3. Replace the cables with the pair from the HSC that worked correctly.
4. Turn the TC44 Interconnect power on and complete the power-up diagnostics.
If the LED now indicates no fault, the problem is in the HSC or with STI cables.
If the fault indication persists, the problem is internal to the TC44 Interconnect enclosure
(cables or board). See the maintenance manual for further troubleshooting and replacement
procedures.
3.1.1.4 Front Panel Error Indication
When a fatal error occurs, press the Fault switch once to display the error code (see Table 3–1)
and a second time to clear the error. If you press the Fault switch when no fatal error has
occurred, all three front panel switch LEDs will light (A , B , and Fault ).
Table 3–1: Front Panel Fault Indications
A

Fault

Indication

–

Kernel Memory Error

–

TCU (FIPS) Interface Error

–

STI Interface Error

Kernel Nonmemory Error

1 An asterisk (*) indicates that the lamp is lit.

3–2 Verification and Error Indications

3.2 Advanced Troubleshooting
Advanced Troubleshooting Procedures are described in the TC44-AA/BA STI to StorageTek
4400 ACS Interconnect Maintenance Manual (EK-TC44I-TM).

Verification and Error Indications 3–3

Appendix A
Specifications
A.1 Physical
Table A–1: TC44–AA/BA Enclosure Dimensions
Centimeters

Inches

Height

17.78

7.0

Width

44.45

17.5

Depth

59.69

23.0

A.2 Electrical
The TC44 Interconnect complies with Underwriters’ Laboratories (UL®) for power cord
grounded equipment, VDE (German standards and testing organization), and Canadian
Standards Association (CSA®) requirements.
Table A–2: Voltage, Frequency and Power Consumption Specifications
Low Range

High Range

Voltage

100 to 120 Vac

200 to 240 Vac

Frequency

60 Hz

50 Hz

Consumption

400 W (max)

Note
The only difference between the AA variation and the BA variation is the position of
the voltage select switch. The AA variation is set to 120 Vac and the BA variation is
set to 220 Vac.

Specifications A–1

A.3 Environmental
Table A–3: Temperature, Humidity and Altitude Specifications
Operating

Non-Operating

15.0°C to 32.0°C

-40.0°C to 65.0°C

(59.0°F to 90.0°F)

(-40.0°F to 149.0°F)

Humidity

20.0 %RH to 80.0 %RH

Wet Bulb (max)

25.0°C

(77.0°F)

2438 m (8000 ft)

9100 m (30,000 ft)

Temperature

Altitude

A.4 Performance
The TC44 Interconnect can sustain an average data transfer rate of two Mbytes/sec.

A.5 Installation
Mean Time to Install (MTTI) is less than two hours for the rack mounted unit.

A–2 Specifications