Quantum ATL STACKLINK User Manual

ATL StackLink™

Installation Instructions

6421009-07 A01

Quantum ATL StackLink™ Installation Instructions, 6421009-07 A01, September 2003, Made in USA.

Quantum Corporation provides this publication “as is” without warranty of any kind, either express or
implied, including but not limited to the implied warranties of merchantability or fitness for a particular
purpose. Quantum Corporation may revise this publication from time to time without notice.

COPYRIGHT STATEMENT

Copyright 2003 by Quantum Corporation. All rights reserved.

Your right to copy this manual is limited by copyright law. Making copies or adaptations without prior
written authorization of Quantum Corporation is prohibited by law and constitutes a punishable violation of
the law.

TRADEMARK STATEMENT

Prism Library Architecture, IntelliGrip, StackLink, WebAdmin, and WebLibrarian are all trademarks of
Quantum Corporation.

Other trademarks may be mentioned herein which belong to other companies.

6207947-06cP 63

Contents

Preface xiii

Chapter 1 Installing the StackLink 1

Preparing for the StackLink Installation......................................................... 1

StackLink Kit Contents .............................................................................. 2

Required Tools ............................................................................................ 3

Preparing the Rack ..................................................................................... 4

Installing the Top Mounting Tray Assembly................................................. 7

Installing the Bottom Mounting Tray Assembly........................................... 9

Installing the Carriage/Counterweight Assembly ..................................... 11

Installing the Motor Assembly....................................................................... 15

Attaching the Shuttle Assembly to the Mounting Tray Assemblies ........17

Chapter 2 Installing the Rack Mount Shelves 19

Determining the Position of the Shelves in the Rack..................................20

Installing the Shelves....................................................................................... 22

Installing the ATL M1500 Rack Mount Shelves ................................... 22

Installing the ATL M2500 Rack Mount Shelves ................................... 30

ATL StackLink™ Installation Instructions iii

Contents

Chapter 3 Installing the Libraries 47

Installing the Libraries in the Rack ................................................................48

Installing Tape Drives in the Libraries..........................................................50

Installing Tape Drives in an ATL M1500...............................................51

Installing Tape Drives in an ATL M2500...............................................52

Installing the Safety Blanking Panels ............................................................54

Preparing and Inserting Tape Cartridges .....................................................55

Labeling Tape Cartridges.........................................................................56

Setting the Write-Protect Switch.............................................................57

Placing Cartridges in the Library............................................................59

Chapter 4 Cabling the Multiple Library Stack 65

Interlibrary (Control Bus) Cabling................................................................. 66

StackLink Motor Connection..........................................................................68

SCSI Bus Cabling..............................................................................................70

SCSI Cabling Guidelines ..........................................................................72

Terminator Power .....................................................................................72

Power Cabling...................................................................................................72

Connecting an ATL M1500 Library to AC Power ................................73

Connecting an ATL M2500 Library to AC Power ................................75

Chapter 5 Completing the Installation 79

Powering Up the Library ................................................................................79

Disabling Unused Drive Bays.........................................................................82

Configuring the Library ..................................................................................84

SCSI Import/Export Elements ................................................................85

Tape Drive SCSI IDs .................................................................................85

Library SCSI Settings................................................................................85

Testing the Library Robotics...........................................................................86

Appendix A Library Size 89

Library Size .......................................................................................................89

Library Size Calculation Examples................................................................90

Library Size in Mixed Stacks...........................................................................92

iv ATL StackLink™ Installation Instructions

Contents

Appendix B SCSI Element Addressing 95

Overview........................................................................................................... 95

Option Settings and Their Effect on SCSI Element Addressing ............... 98

Auto-Clean Option ................................................................................... 98

Import/Export Option............................................................................. 98

SCSI Element Addressing in Multiple Library Stacks.............................. 103

ATL StackLink™ Installation Instructions v

Contents

vi ATL StackLink™ Installation Instructions

Figures

Figure 1 Inserting Caged Nuts into the Rack Rails................................. 5

Figure 2 Caged Nut Locations ...................................................................6

Figure 3 Adjusting the Depth of the Top Mounting Tray Assembly ... 7

Figure 4 Securing the Top Mounting Tray Assembly to the Rack........ 8

Figure 5 Adjusting the Depth of the Bottom Mounting Tray

Assembly ....................................................................................... 9

Figure 6 Securing the Bottom Mounting Tray Assembly to

the Rack........................................................................................ 10

Figure 7 Installing the Carriage/Counterweight Assembly ............... 12

Figure 8 Connecting the Umbilical Cable to the Bottom of the

Carriage........................................................................................ 14

Figure 9 Inserting the Motor Assembly into the Vertical

Shuttle Assembly........................................................................ 15

Figure 10 Securing the Motor Assembly to the Vertical

Shuttle Assembly........................................................................ 16

Figure 11 Routing the Belt .......................................................................... 16

Figure 12 Connecting the Ribbon Cable ................................................... 17

Figure 13 Installing the Shuttle Assembly................................................ 18

Figure 14 Example of Full and Half U Mounting Positions .................. 21

ATL StackLink™ Installation Instructions vii

Figures

Figure 15 Identifying the Shelf Extender Slots.........................................25

Figure 16 Attaching the Shelves to the Extenders...................................26

Figure 17 Installing the Inserts in the Shelves..........................................27

Figure 18 Installing the Shelf in the Rack .................................................28

Figure 19 Securing the Shelf Clamp to the Rail .......................................29

Figure 20 Identifying the Shelf Extender Slots.........................................32

Figure 21 Attaching the Shelves to the Extenders...................................33

Figure 22 Installing Inserts at the Front of the Shelves...........................34

Figure 23 Installing Inserts at the Rear of the Shelves ............................35

Figure 24 Installing the Shelves..................................................................35

Figure 25 Installing the Front Shelf Clamps.............................................36

Figure 26 Installing the Rear Shelf Clamps ..............................................37

Figure 27 Installing the Clamp Strips........................................................39

Figure 28 Installing Inserts at the Front of the Shelves...........................41

Figure 29 Installing Inserts at the Rear of the Shelves ............................41

Figure 30 Installing the Shelves..................................................................42

Figure 31 Installing the Front Shelf Clamps.............................................43

Figure 32 Installing the Rear Shelf Clamps ..............................................44

Figure 33 Installing the Clamp Strips........................................................45

Figure 34 Rack Mount Clamp Screw Access Holes, ATL M1500.......... 49

Figure 35 Rack Mount Clamp Screw Access Holes, ATL M2500.......... 49

Figure 36 Installing a Tape Drive in an ATL M1500 Library.................51

Figure 37 Drive Bay Numbering, ATL M2500.........................................52

Figure 38 Installing a Tape Drive in an ATL M2500 Library.................53

Figure 39 Labeling Tape Cartridges ..........................................................57

Figure 40 Setting the Write-Protect Switch (DLT and

SDLT Cartridges) ........................................................................58

Figure 41 Setting the Write-Protect Switch (LTO Cartridges) ...............58

Figure 42 Magazine Release Button...........................................................59

Figure 43 Inserting DLT Cartridges into a Magazine .............................60

viii ATL StackLink™ Installation Instructions

Figures

Figure 44 Removing the Level 2 Left Magazine......................................61

Figure 45 Release Latch............................................................................... 62

Figure 46 Removing the Level 1 Left Magazine......................................62

Figure 47 Library Control and StackLink Power Cabling ..................... 67

Figure 48 StackLink Motor Connection.................................................... 69

Figure 49 Typical SCSI Bus Connections.................................................. 71

Figure 50 Power Inlet .................................................................................. 73

Figure 51 Power Inlet .................................................................................. 76

Figure 52 Power Switch, ATL M1500........................................................ 80

Figure 53 Power Switches, ATL M2500....................................................80

Figure 54 Welcome Screen, ATL M2500................................................... 81

Figure 55 Main Screen, ATL M2500 .......................................................... 81

Figure 56 Using the GUI Buttons............................................................... 82

Figure 57 Menu Screen................................................................................ 83

Figure 58 Configuration Screen ................................................................. 83

Figure 59 Menu Screen................................................................................ 86

Figure 60 Demo Programs Screen .............................................................87

Figure 61 Main Screen................................................................................. 89

Figure 62 Library Size Calculation Examples.......................................... 91

Figure 63 Library Size Calculation, ATL M1500 Stack vs.

Mixed Stack .................................................................................93

ATL StackLink™ Installation Instructions ix

Figures

x ATL StackLink™ Installation Instructions

Tables

Table 1 Contents, StackLink Kit ............................................................... 2

Table 2 Contents, ATL M1500 Universal Rack Mount Kit................. 23

Table 3 Shelf Assembly Matrix............................................................... 25

Table 4 Contents, ATL M2500 Universal Rack Mount Kit................. 30

Table 5 Shelf Assembly Matrix............................................................... 32

Table 6 Bar Code Label Requirements .................................................. 56

Table 7 ATL M1500 AC Distribution Requirements........................... 74

Table 8 ATL M2500 AC Distribution Unit Requirements.................. 76

Table 9 SCSI Element Addressing, Stand-alone ATL M1500 ............ 96

Table 10 SCSI Element Addressing, Stand-alone ATL M2500 ............ 96

Table 11 ATL M1500, Import/Export Option Set to 1-Slot.................. 99

Table 15 Element Addressing, Multiple Library Stack....................... 103

Table 16 Element Addressing, Multiple Library Stack....................... 105

ATL StackLink™ Installation Instructions xi

Tables

xii ATL StackLink™ Installation Instructions

Preface

This document explains how to install the StackLink™ mechanism. The
StackLink provides the physical connection between library modules in a
multiple library stack, allowing each of the tape drives in the stack to
have access to all of the data cartridges.

Four heights of StackLink can be purchased for use with the
ATL M-Series libraries: 10U, 22U, 30U, and 42U.

Audience This document is written for installers of the StackLink mechanism.

Purpose This document explains how to install a multiple library stack, including:

• Installing the StackLink mechanism

• Installing the rack mount shelves

• Installing the library modules in the rack

• Installing tape drives in the library modules

• Installing safety blanking panels

• Preparing and inserting tape cartridges

• Cabling the multiple library stack

ATL StackLink™ Installation Instructions xiii

Preface

Document
Organization

Notational
Conventions

This document is organized as follows:

• Chapter 1, Installing the StackLink

, explains how to install the

StackLink mechanism in the rack.

• Chapter 2, Installing the Rack Mount Shelves

, explains how to install

the rack mount shelves.

• Chapter 3, Installing the Libraries

, explains how to install the libraries
in the rack, install tape drives in the libraries, install the safety
blanking panels, and prepare and insert tape cartridges.

• Chapter 4, Cabling the Multiple Library Stack

, explains how to
connect the interlibrary (control bus), StackLink, SCSI bus, and power
cabling.

• Chapter 5, Completing the Installation

, explains how to power up the
multiple library stack, disable unused drive bays, configure the
library, and test the library robotics.

• Appendix A, Library Size

, explains how the library firmware

calculates and reports library size.

• Appendix B, SCSI Element Addressing

, explains how the library

firmware assigns SCSI element addresses.

This manual uses the following conventions:

Note: Notes emphasize important information related to the main

topic.

Caution: Cautions indicate potential hazards to equipment and are

included to prevent damage to equipment.

Warning: Warnings indicate potential hazards to personal safety and

are included to prevent injury.

xiv ATL StackLink™ Installation Instructions

Preface

Related
Documents

Documents related to the ATL M-Series libraries are shown below.

ATL M-Series Documentation

Doc. No Title Description

6421001 ATL M1500 Field

Service Manual

This document explains how to
service the ATL M1500 library,
including:

• Understanding error codes

• Using built-in diagnostic checks
to troubleshoot library problems

• Replacing field replaceable
units (FRUs)

6421002 ATL M1500

Unpacking
Instructions

6421005 ATL M1500 Rack

Mount to Desktop
Conversion
Instructions

This document explains how to
remove the ATL M1500 library
from its shipping container.

This document explains how to
convert a rack mounted
ATL M1500 library to a desktop
unit.

0

6421007 ATL M1500 Desktop to

Rack Mount
Conversion

This document explains how to
convert a desktop ATL M1500
library to a rack mount unit.

Instructions

6421008 ATL M-Series Tape

Drive Installation
Instructions

6421010 ATL M-Series Software

Interface Guide

This document explains how to
install a tape drive in an ATL
M-Series library.

This document describes the
procedures and issues involved in
the development of hierarchical
mass storage software applications
and utilities to communicate with
the ATL M-Series libraries.

ATL StackLink™ Installation Instructions xv

Preface

Doc. No Title Description

6421014 ATL M-Series Tape

Drive Removal and
Replacement
Instructions

6421015 ATL M1500 Chassis

Removal and
Replacement
Instructions

6421017 ATL M1500 Chassis

Unpacking
Instructions

6421026 ATL M1500 Spacer

Installation
Instructions

6421034 ATL M1500 Front

Bezel/GUI Assembly
Replacement
Instructions

This document explains how to
remove and replace a tape drive in
an ATL M-Series library.

This document explains how to
remove, package for shipment,
and replace an ATL M1500 library
chassis.

This document explains how to
unpack the ATL M1500 library
chassis FRU.

This document explains how to
install spacers on the rack before
installing an M1500 library. These
spacers are necessary if you are
installing a new M1500 library in a
rack with older M1500 libraries
and a StackLink mechanism.

This document describes the
procedure for replacing the front
bezel/graphical user interface
(GUI) assembly in an ATL M1500
library.

6423000 ATL M2500

Unpacking
Instructions

6423001 ATL M-Series

Installation Guide

6423002 ATL M-Series User’s

Guide

xvi ATL StackLink™ Installation Instructions

This document explains how to
remove the ATL M2500 library
from its shipping container.

This document explains how to
install an ATL M-Series library.

This document explains how to
operate an ATL M-Series library.

Doc. No Title Description

Preface

6423003 ATL M2500 Field

Service Manual

6423006 ATL M-Series Library

Redundant Power
Supply Replacement
Instructions

6423007 ATL M-Series Library

Universal Power
Supply Replacement
Instructions

6423008 ATL M-Series Library

System Board PWA
Replacement
Instructions

This document explains how to
service the ATL M2500 library,
including:

• Understanding error codes

• Using built-in diagnostic checks
to troubleshoot library problems

• Replacing field replaceable
units (FRUs)

This document explains how to
remove and replace a redundant
power supply in an ATL M-Series
library

This document explains how to
remove and replace a universal
power supply in an ATL M-Series
library.

This document explains how to
remove and replace the system
board PWA in an ATL M-Series
library.

6423009 ATL M-Series Library

SCSI Servo Board and
SCSI Adapter
Replacement

This document explains how to
remove and replace the SCSI servo
board and SCSI adapter in an
ATL M-Series library.

Instructions

6423010 ATL M-Series Library

Robotic Hand Removal
and Replacement

This document explains how to
remove and replace the robotic
hand in an ATL M-Series library.

Instructions

6423012 ATL M2500 Library

GUI Assembly
Replacement

This document explains how to
remove and replace the GUI
assembly in an ATL M2500 library.

Instructions

ATL StackLink™ Installation Instructions xvii

Preface

Doc. No Title Description

6423034 Quantum ATL

M-Series Power Supply
Upgrade Instructions

6423036 ATL M2500 Rack

Mount to Deskside
Conversion
Instructions

6423039 Quantum ATL

StackLink FRU
Removal and
Replacement
Instructions

6423062 Quantum ATL

M-Series Drive Brick
Replacement
Instructions

6423063 Quantum ATL M2500

Bezel/Doors/Winged
Window Replacement
Instructions

This document explains how to
upgrade the power supply in an
ATL M-Series library.

This document explains how to
convert a rack mounted ATL
M2500 to a deskside library.

This document explains how to
remove and replace the StackLink
motor assembly, carriage,
counterweight, and umbilical
chain.

This document explains how to
remove and replace an SDLT 320,
SDLT 600, or HP LTO Gen 2 tape
drive (without a canister) in an
ATL M-Series library.

This document explains how to
replace the bezel, doors, and
window in an ATL M2500 library.

Refer to the appropriate product manuals for information about your
tape drive and cartridges.

SCSI-2 Specification

The SCSI-2 communications specification is the proposed American
National Standard for information systems, dated March 9, 1990. Copies
may be obtained from:

Global Engineering Documents
15 Inverness Way, East
Englewood, CO 80112
[phone] or [phone]

xviii ATL StackLink™ Installation Instructions

0

Contacts Quantum company contacts are listed below.

Preface

Quantum Corporate Headquarters

To order documentation on the ATL M-Series libraries or other products
contact:

Quantum Corporation
P.O. Box 57100
Irvine, CA 92619-7100
[phone]
[phone]

Technical Publications

To comment on existing documentation send e-mail to:

[e-mail]

Quantum Home Page 0

Visit the Quantum home page at:

http://www.quantum.com

0

0

Customer Support 0

The Quantum Customer Support Department provides a 24-hour help
desk that can be reached at:

North/South America: [phone] or

[phone]

Asia/Pacific Rim: (International Code)

[phone]

Europe/Middle East/Africa: (International Code)

[phone]

ATL StackLink™ Installation Instructions xix

Preface

Send faxes for the Customer Support Department to:

North/South America: [phone]

Asia/Pacific Rim: (International Code)

[phone]

Europe/Middle East/Africa: (International Code) +

[phone]

Send e-mail for the Customer Support Department to:

North/South America: Go to http://www.quantum.com/

askaquestion and enter your question

and e-mail address

Asia/Pacific Rim: [e-mail]
Europe/Middle East/Africa: [e-mail]

xx ATL StackLink™ Installation Instructions

Chapter 1

1Installing the StackLink

The StackLink installation procedure consists of the following steps:

• Preparing for the StackLink Installation

• Installing the Top Mounting Tray Assembly

• Installing the Bottom Mounting Tray Assembly

• Installing the Carriage/Counterweight Assembly

• Installing the Motor Assembly

• Attaching the Shuttle Assembly to the Mounting Tray Assemblies

Preparing for the StackLink Installation 1

Before starting the StackLink installation procedure:

• Verify that the StackLink kit contains all of the necessary items (see
the following section, StackLink Kit Contents

• Make sure you have the necessary tools for the installation (see

Required Tools

• Prepare the rack for the installation (see Preparing the Rack

ATL StackLink™ Installation Instructions 1

).

).

).

Chapter 1 Installing the StackLink
Preparing for the StackLink Installation

StackLink Kit Contents

Table 1 lists the contents of the StackLink kit. If any items are missing,

contact Quantum (see Customer Support

1

on page xix).

Note: The StackLink kit is shipped in two boxes. Before starting the

installation procedure, verify that you received both boxes,
and that the boxes contain all of the items listed in table 1

Table 1 Contents,
StackLink Kit

Quantity Provided

Part No. Description

with 10U

StackLink

with 22U

StackLink

212406 Front safety blanking panel, 1U N/A 1 1 1

212407 Front safety blanking panel, 2U N/A 1 1 1

212502 Rear safety blanking panel, 4U N/A 3 5 8

212579 Front safety blanking panel, 4U N/A 3 5 8

with 30U

StackLink

.

with 42U

StackLink

214217 Rear safety blanking panel, .5U N/A 1 1 1

214218 Rear safety blanking panel, 1U N/A 2 2 2

215941 Front panel, .5U N/A 1 1 1

6421009 ATL StackLink Installation Instructions 1111

214070 StackLink motor cable (2 meter) N/A N/A 1 1

214080 StackLink motor cable (1 meter) N/A 1 N/A N/A

214090 StackLink motor cable (.6 meter) 1 N/A N/A N/A

214370 Top mounting tray assembly 1111

214380 Bottom mounting tray assembly 1111

214390 Vertical shuttle assembly (10U) 1 N/A N/A N/A

2 ATL StackLink™ Installation Instructions

Chapter 1 Installing the StackLink

Preparing for the StackLink Installation

Quantity Provided

Part No. Description

with 10U

StackLink

with 22U

StackLink

with 30U

StackLink

with 42U

214400 Vertical shuttle assembly (22U) N/A 1 N/A N/A

214410 Vertical shuttle assembly (42U) N/A N/A N/A 1

214450 Shuttle motor mount assembly 1111

215180 Carriage/counterweight assembly 1111

217370 Vertical shuttle assembly (30U) N/A N/A 1 N/A

AS3642 Library control bus cable (.5 meter) 3 5 7 10

AS3643 Library control bus cable (2 meter) N/A 1 1 1

AS3667 Library control bus cable (1 meter) N/A 1 1 2

YS40402M4 plain washer 6666

YS40404 M6 plain washer 16 22 26 32

YS41731 Washer, large N/A 6 6 6

YS41952M4 x 12 socket head cap screw 6666

YS41964 M4 x 10 socket head cap screw 1 7 11 17

YS42008 M6 caged nut 16 22 26 32

StackLink

YS42011 M6 x 12 button head screw 16 22 26 32

YS42038M4 x 10 socket head countersink screw 2222

Required Tools 1

The following tools are required to install the StackLink:

• Flat blade screwdriver

•No. 2 POZIDRIV

•Metric Allen

ATL StackLink™ Installation Instructions 3

®

screwdriver

®

wrenches, sizes M4 and M6

Chapter 1 Installing the StackLink
Preparing for the StackLink Installation

Preparing the Rack

To prepare the rack for the installation procedure:

1

1 Verify that the distance between the front and rear mounting strips is

between 19 inches and 36 inches (483 mm and 914 mm). If this is not
the case, adjusting the mounting strips referring to the instructions
provided by the rack manufacturer.

2 Determine the correct placement of the StackLink in the rack.

Caution: Take rack stability into account when determining

where to place the StackLink. If the multiple library
stack will be the only equipment in the rack, it is
recommended that you install the StackLink at the
bottom of the rack.

The bottom mounting tray assembly should be installed at the
bottom of the rack.

Note: The bottom mounting tray assembly occupies 1U of rack

space unless you are installing 3 ATL M2500 libraries in
the rack. In this configuration, the bottom mounting tray
assembly is modified to occupy .5U of rack space.

Note: 1U equals 1.75 inches, or 44 millimeters.

The top mounting tray assembly should be installed as follows:

• If you are installing an 10U StackLink, allow 8U of space between
the top and bottom mounting tray assemblies.

• If you are installing a 22U StackLink, allow 20U of space between
the top and bottom mounting tray assemblies.

• If you are installing a 30U StackLink, allow 28U of space between
the top and bottom mounting tray assemblies.

• If you are installing a 42U StackLink and:

• Fewer than 3 ATL M2500 library modules, allow 40U of

space between the top and bottom mounting tray assemblies.

• 3 ATL M2500 library modules, allow 40.5U of space between

the top and bottom mounting tray assemblies.

4 ATL StackLink™ Installation Instructions

Figure 1 Inserting
Caged Nuts into the
Rack Rails

Chapter 1 Installing the StackLink

Preparing for the StackLink Installation

3 Use a pencil to mark the correct position of the mounting tray

assemblies on the rack rails.

4 If the holes in the rack rails are square (untapped), insert caged nuts

(PN YS42008) into the holes where the mounting tray assemblies will
be installed (see figures 1

and 2).

Note: Install the caged nuts on the back of the rack rails, facing

the interior of the rack.

Caged nuts

Flat blade
screwdriver

ATL StackLink™ Installation Instructions 5

Chapter 1 Installing the StackLink
Preparing for the StackLink Installation

Figure 2 Caged Nut
Locations

Install caged nuts
in locations marked
by an “X”

If you are installing 3 ATL M2500 library modules

in the rack, do not put caged nuts in these locations

FRONT OF RACK

Top mounting tray position

Bottom mounting tray position

BACK OF RACK

1U

1U

Top mounting tray position

Bottom mounting tray position

6 ATL StackLink™ Installation Instructions

1U

1U

Chapter 1 Installing the StackLink

Installing the Top Mounting Tray Assembly

Installing the Top Mounting Tray Assembly 1

To install the top mounting tray assembly in the rack:

1 Remove the six screws and washers securing the rear support arms to

the sides of the top mounting tray (see figure 3

Figure 3 Adjusting the
Depth of the Top
Mounting Tray
Assembly

).

2 Adjust the position of the rear support arms on the top mounting tray

until the distance between the front and rear flanges is approximately
the same as the distance between the front and rear mounting strips
in the rack.

3 Replace the six screws and washers you removed in step 1

finger-tighten them. Position the front and rear screws as far apart as
the slots allow. Position the third screw approximately in the middle
slot.

Note: Do not over-tighten the screws. You need to be able to

extend or retract the rear support arms slightly as you
install the top mounting tray assembly.

ATL StackLink™ Installation Instructions 7

and

Chapter 1 Installing the StackLink
Installing the Top Mounting Tray Assembly

4 Position the top mounting tray assembly in the rack, referring to

figure 4

for the correct orientation.

Note: Position the front and rear flanges of the top mounting

Figure 4 Securing the
Top Mounting Tray
Assembly to the Rack

tray assembly outside of the rack rails.

REAR

FRONT

5 Secure the top mounting tray assembly to the rack, using eight screws

(PN YS42011) and washers (PN YS40404) provided in the StackLink
kit (see figure 4

).

Note: If the rack has widely spaced mounting holes, it may not

be possible to use all four screws to secure the rear flanges.
If this is the case, one screw per side at the rear is
acceptable.

6 Fully tighten the six screws and washers securing the rear support

arms to the sides of the top mounting tray.

8 ATL StackLink™ Installation Instructions

Chapter 1 Installing the StackLink

Installing the Bottom Mounting Tray Assembly

Installing the Bottom Mounting Tray Assembly 1

To install the bottom mounting tray assembly in the rack:

1 If three ATL M2500 library modules will be installed in the rack,

remove the 1U panel from the front of the bottom mounting tray
assembly and replace it with the .5U panel provided in the StackLink
kit:

Caution: Do not remove this panel if fewer than three

ATL M2500 library modules will be installed in the
rack.

a Remove the five nuts securing the 1U panel to the front of the

bottom mounting tray assembly.

b Position the .5U panel (PN 215941) at the front of the bottom

mounting tray assembly and secure it using the five nuts you
removed in the previous step.

2 Remove the six screws and washers securing the rear support arms to

the sides of the bottom mounting tray (see figure 5

).

Figure 5 Adjusting the
Depth of the Bottom
Mounting Tray
Assembly

ATL StackLink™ Installation Instructions 9

Chapter 1 Installing the StackLink
Installing the Bottom Mounting Tray Assembly

3 Adjust the position of the rear support arms on the bottom mounting

tray until the distance between the front and rear flanges is
approximately the same as the distance between the front and rear
mounting strips in the rack.

Figure 6 Securing the
Bottom Mounting Tray
Assembly to the Rack

4 Replace the six screws and washers you removed in step 2

and
finger-tighten them. Position the front and rear screws as far apart as
the slots allow. Position the third screw approximately in the middle
slot.

Note: Do not over-tighten the screws. You need to be able to

extend or retract the rear support arms slightly as you
install the bottom mounting tray assembly.

5 Position the bottom mounting tray assembly in the rack, referring to

figure 6

for the correct orientation.

Note: Position the front and rear flanges of the bottom mounting

tray assembly outside of the rack rails.

REAR

FRONT

10 ATL StackLink™ Installation Instructions