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Document:	DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide
Order Number:	EK-410RC-IN
Revision:	A01
Pages:	22
Original Filename:

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DIGITAL Custom AlphaServer 4100
System in a Rittal Cabinet
Installation Guide
Part Number: EK-410RC-IN. A01

January 1998

Digital Equipment Corporation
Maynard, Massachusetts

January 1998
Digital Equipment Corporation makes no representations that the use of its products in the manner described in this
publication will not infringe on existing or future patent rights, nor do the descriptions contained in this publication
imply the granting of licenses to make, use, or sell equipment or software in accordance with the description.
Possession, use, or copying of the software described in this publication is authorized only pursuant to a valid written
license from DIGITAL or an authorized sublicensor.
© Digital Equipment Corporation 1998. All rights reserved.
The following are trademarks of Digital Equipment Corporation: AlphaServer, DIGITAL, StorageWorks, and the
DIGITAL logo.
The following are third-party trademarks:
Rittal is a trademark of Rittal Corporation

S3617

Table of Contents
1 Introduction
1.1 General.................................................................................................................... 1–1
1.2 Mounting Hardware and Components List............................................................... 1–1

2 Installation
2.1 General.................................................................................................................... 2–1
2.2 Unpacking the Shipment.......................................................................................... 2–1
2.3 Installing the Custom AlphaServer 4100 System...................................................... 2–2
2.3.1 Assembling the Slide Assemblies................................................................... 2–2
2.3.1.1 Assembling the Right Slide Assembly.................................................. 2–2
2.3.1.2 Assembling the Left Slide Assembly.................................................... 2–3
2.3.2 Determining the Installation Area .................................................................. 2–4
2.3.3 Attaching the Slide Assemblies to the Cabinet Rails ...................................... 2–6
2.3.3.1 Attaching the Right Slide Assembly to the Cabinet Rails ..................... 2–6
2.3.3.2 Attaching the Left Slide Assembly to the Cabinet Rails ....................... 2–7
2.3.4 Installing Cage Nuts on the Front Rails.......................................................... 2–7
2.3.5 Attaching the Inner Races to the Chassis........................................................ 2–8
2.3.6 Mounting the System on the Slides ................................................................ 2–9
2.3.7 Connecting and Routing the Power Cord(s)...................................................2–10
2.3.8 Installing the Front Bezel..............................................................................2–11
2.4 Installing the Swing Arm Cable Management Bracket............................................2–13
2.5 Installing the 2T-EXBAY Options ..........................................................................2–14

Figures
Figure 2-1 Attaching the Slide Brackets to the Slide Assemblies .................................. 2–3
Figure 2-2 Installation Area and Rail-Hole Pattern (Front View) .................................. 2–4
Figure 2-3 Installation Area and Rail Hole Pattern (Rear View) ................................... 2–5
Figure 2-4 Attaching the Slide Assemblies to the Cabinet Rails.................................... 2–6
Figure 2-5 Attaching the Inner Slide Races................................................................... 2–8
Figure 2-6 Mounting the System on the Slides.............................................................. 2–9
Figure 2-7 Connecting and Routing the Power Cord(s) ................................................2–10
Figure 2-8 Installing the Front Bezel ...........................................................................2–11
Figure 2-9 Securing the System to the Cabinet Rails ...................................................2–12
Figure 2-10 Installing the Swing Arm Cable Management Bracket..............................2–13

Tables
Table 1-1 Mounting Hardware and Component List ..................................................... 1–1
iii

Table 2-1 2T-EXBAY Options ................................................................................... 2–14

Preface
Overview
This guide provides the information necessary to install the DIGITAL custom AlphaServer
4100 system in a Rittal cabinet.

Intended Audience
This guide is intended for DIGITAL service personnel or qualified Self-maintenance
customers who are familiar with installing computer systems.

Organization
This guide is organized as follows:
Chapter 1, Introduction – Provides an overview of installing the DIGITAL custom
AlphaServer 4100 in a Rittal cabinet along with a parts list.
Chapter 2, Upgrade Procedure – Provides the detailed procedures for installing the custom
AlphaServer 4100 system in a Rittal cabinet.

Related Documents
Other documents related to the DIGITAL custom AlphaServer 4100 system include the
following:
•

DIGITAL Custom AlphaServer 4100 System Solutions Installation/Owner’s/Service Guide
(EK-410LP-IN)

Conventions
This guide uses the following conventions:
Convention

Meaning

Note

A note calls the reader’s attention to any item of information that may be of
special importance.

Caution

A caution contains information essential to avoid damage to the equipment.

Warning

A warning contains information essential to the safety of personnel.
Circled numbers provide a link between figures or examples and text.

Italic type

Italic type emphasizes important information, indicates variables, and
indicates complete titles of manuals.

The following symbols appear on the chassis. Please review their definitions below:
This Dangerous Voltage warning symbol indicates risk of electrical shock and
indicates hazards from dangerous voltage.

This Attention symbol is used to alert the reader about specific safety
conditions, and to instruct the reader to read separate instructional material.

Reader’s Comments
DIGITAL welcomes your comments on this or any other manual. You can send your
comments to DIGITAL by mail to the following address:
Digital Equipment Corporation
Shared Engineering Services
PKO3-2/21J
129 Parker Street
Maynard, MA 01754-2199

1
Introduction
1.1 General
This chapter contains an overview of installing the DIGITAL custom AlphaServer 4100
system in a Rittal cabinet along with a parts list.
The custom AlphaServer 4100 system can be installed in a Rittal cabinet by using mounting
hardware that is different from the mounting hardware used for installation in a standard
DIGITAL English or metric RETMA cabinet. The main differences include the following:
•

Slide mounting brackets

•

Installation rail-hole pattern

•

The use of Rittal cage nuts

•

A swing arm cable management bracket

1.2 Mounting Hardware and Components List
Table 1-1 lists the mounting hardware and components included with the system shipment for
installation in a Rittal cabinet.
Table 1-1 Mounting Hardware and Component List
Description

Part Number

Quantity

Chassis slide assembly (pre-assembled with slide mounting brackets)

12-46387-01

1 pair

Slide mounting brackets (LF/LR) (pre-assembled to slide assemblies)

74-53081-01

Slide mounting brackets (RF/RR) (pre-assembled to slide assemblies)

74-53082-01

M6 screw

90-40333-02

Screw, 8-32 pan-head

90-09545-00

Front bezel

74-53083-01

Screw, 8-32 flat-head

90-00039-01

M6 cage nut

90-40333-01

Swing arm cable management bracket (cabinet)

12-26281-01

Screw, 10-32 truss-head

90-00063-39

U-nut

90-07786-00

Molded right angle power cord

17-04522-03

Strain relief

12-21249-01

Tie-wraps

90-07031-01

DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet
Installation Guide

EK-410RC-IN

DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide 1–1

SES Template Word 7 Blank Page Fix by Peter LaQuerre

2
Installation
2.1 General
This chapter covers the installation of the custom AlphaServer 4100 system in a 43U Rittal
cabinet. The major topics covered in this chapter include:
•

Unpacking the Shipment

•

Installing the Custom AlphaServer 4100 System
– Assembling the Slide Assemblies
– Determining the Installation Area
– Attaching the Slide Assemblies to the Cabinet Rails
– Installing Cage Nuts on the Front Rails
– Attaching the Inner Races to the Chassis
– Mounting the System on the Slides
– Connecting and Routing the Power Cord(s)
– Installing the Front Bezel

•

Installing the Swing Arm Cable Management Bracket

•

Installing the 2T-EXBAY Options

2.2 Unpacking the Shipment
The custom AlphaServer 4100 system shipment may include several cartons. Check the
packing list to ensure that all items listed have been received.
If the equipment is damaged or if any items are missing, notify the delivery agent and contact
the DIGITAL sales representative.
Save all shipping cartons in case the equipment needs to be moved to a new location, or
needs to be returned for repair.
___________________________ WARNING _________________________
The custom AlphaServer 4100 system can weigh up to 45.36 kg (100 lb). Use
sufficient personnel or the proper lifting equipment to remove the system
from the shipping carton.
______________________________________________________________

DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide 2–1

Installation

2.3 Installing the Custom AlphaServer 4100 System
The following sections contain the procedure for installing the custom AlphaServer 4100
system in a 43U Rittal cabinet.

Tools Required
•

Phillips-head screwdriver

•

Flat-blade screwdriver

•

Adjustable wrench

2.3.1 Assembling the Slide Assemblies
The slide assemblies are shipped with the slide brackets attached to the slides. Refer to Figure
2-1 and the following steps to remove the inner races from the right and left slide assemblies:
1.
2.

Find the right slide assembly  that is shipped with the system.

Pull out the inner race  until it locks. Press up on the locking lever  (direction of the
arrow ), and pull the inner race  out of the right slide assembly . Set the inner race
aside.

Find the left slide assembly that is shipped with the system.

Pull out the inner race until it locks. Press up on the locking lever (direction of the
arrow), and pull the inner race out of the left slide assembly. Set the inner race aside.

If the slide brackets are ever removed from the slide assemblies, refer to the following
sections for the procedure for assembling the right and left slide assembly.
_____________________________Caution__________________________
Using the specified slide bracket part number for the left and right slide
assemblies is critical.
______________________________________________________________
2.3.1.1 Assembling the Right Slide Assembly
Refer to Figure 2-1 and assemble the right slide assembly as follows:
1.

Find the right slide assembly  that is shipped with the system.

Pull out the inner race  until it locks. Do not remove the inner race from the slide
assembly at this time.

Orient the slide so that the arrow  next to the locking lever  is pointing upward.

4.
5.

6.
7.

Slide the RF/RR slide bracket  (P/N 74-53082-01) onto the rear end of the right slide
assembly .

Attach the right rear slide bracket  to the right slide assembly  using the mounting
holes shown in Figure 2-1 and two 8-32 screws , flat washers , lock washers , and
nuts ¡, but do not tighten. The right rear slide bracket must be loose enough to adjust
later.
Press up on the locking lever  (direction of the arrow ), and pull the inner race  out
of the right slide assembly . Set the inner race aside.
Slide the RF/RR slide bracket ¢ (P/N 74-53082-01) onto the front end of the right slide
assembly .

2–2 DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide

Installation

Pull out the inside slide  about halfway, enough to align two half-inch access holes on
the inside slide with the mounting holes  on the slide assembly and the front slide
bracket ¢. The first hole on the front end of the right slide assembly aligns with the first
hole on the right front slide bracket as shown in Figure 2-1.
Attach the right front slide bracket ¢ to the right slide assembly  using the mounting
holes shown in Figure 2-1 and two 8-32 screws , flat washers , lock washers , and
nuts ¡. Tighten these two screws and nuts.

10. Set this assembly aside.
Figure 2-1 Attaching the Slide Brackets to the Slide Assemblies
3
4
9

7
1
6

2
7 8

7
8

2
1

9
8
LJ-06274.DWG

2.3.1.2 Assembling the Left Slide Assembly
Refer to Figure 2-1 and assemble the left slide assembly as follows:
1.

Find the left slide assembly that is shipped with the system.

Pull out the inner race until it locks. Do not remove the inner race from the slide
assembly at this time.

Orient the slide so that the arrow next to the locking lever is pointing upward.

Slide the LF/LR slide bracket (P/N 74-53081-01) onto the rear end of the left slide
assembly.

Attach the left rear slide bracket to the left slide assembly using the mounting holes
shown in Figure 2-1 and two 8-32 screws, flat washers, lock washers, and nuts, but do not
tighten. The right rear slide bracket must be loose enough to adjust later.

Press up on the locking lever (direction of the arrow), and pull the inner race out of the
left slide assembly. Set the inner race aside.

Slide the LF/LR slide bracket (P/N 74-53081-01) onto the front end of the left slide
assembly.

Pull out the inside slide about halfway, enough to align two half-inch access holes on the
inside slide with the mounting holes on the slide assembly and the front slide bracket.
The first hole on the front end of the left slide assembly aligns with the first hole on the
left front slide bracket as shown in Figure 2-1.

DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide 2–3

Installation

Attach the left front slide bracket to the left slide assembly using the mounting holes
shown in Figure 2-1 and two 8-32 screws, flat washers, lock washers, and nuts. Tighten
these two screws and nuts.

10. Set this assembly aside.

2.3.2 Determining the Installation Area
The custom AlphaServer 4100 system requires 22.23 cm (8.75 in.) of vertical space or 15
contiguous holes in a 43U Rittal cabinet.
To determine the installation area, perform the following steps at the front and the rear
cabinet rails. Refer to Figure 2-2 for a diagram of the installation area as seen from the front
of the cabinet. Refer to Figure 2-3 for a diagram of the installation area as seen from the rear
of the cabinet.
1.

Select a section of the cabinet rail where there is an indentation beside a hole and make a
mark above this hole. This is the starting point of the installation area.

Count up or down 15 holes from the starting point and make a mark above or below the
15th hole. The area between these two marks is the installation area. The bottom hole of
the installation area is identified as hole 1 of the installation area.

Repeat steps 1 and 2 for the same holes on the front of both front rails and the rear of
both rear rails.

The total installation area for the custom Alpha Server 4100 system is or 22.23 cm (8.75 in.)
of vertical space.
Figure 2-2 Installation Area and Rail-Hole Pattern (Front View)

"Installation Area"

LJ-6275A.AI4

Holes 2 and 4 for attaching right slide
bracket.

Holes 5 and 14 for cage nuts used to secure
system to left and right front rails.

Holes 11 and 13 for attaching left slide
bracket.

2–4 DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide

Installation

Figure 2-3 Installation Area and Rail Hole Pattern (Rear View)

"Installation Area"
1

LJ-6275B.AI4

Holes 2 and 4 for attaching right slide
bracket.

Holes 4, 5, 6, and 7 for U-nuts used to
secure swing arm cable management
bracket to left rear rail.

Holes 11 and 13 for attaching left slide
bracket.

DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide 2–5

Installation

2.3.3 Attaching the Slide Assemblies to the Cabinet Rails
The following sections contain the procedures for attaching the right and left slide assembles
to the cabinet rails.
2.3.3.1 Attaching the Right Slide Assembly to the Cabinet Rails
To attach the right slide assembly to the cabinet rails, refer to Figure 2-4 and proceed as
follows:
1.

Determine the proper mounting holes for the right slide brackets.
The proper mounting holes are the 2nd and 4th holes of the installation area (see Figure
2-2 and Figure 2-3).

2.
3.

4.
5.
6.
7.

Locate the right slide assembly .
Place the right front slide bracket on the inside of the right front rail and align the two
slide bracket holes with the 2nd and 4th holes of the installation area on the right front
rail.
Install two M6 x 1.5 mm screws  in the 2nd and 4th holes of the installation area to
secure the right front slide bracket to the right front rail, but do not tighten.
Place the right rear slide bracket on the inside of the right rear rail and align the two slide
bracket holes with the 2nd and 4th holes of the installation area on the right rear rail.
Install two M6 x 1.5 mm screws  in the 2nd and 4th holes of the installation area to
secure the right rear slide bracket to the right rear rail, but do not tighten.
Tighten the two 8-32 screws and nuts that secure the right rear slide bracket to the right
slide assembly (shown in Figure 2-1).

Figure 2-4 Attaching the Slide Assemblies to the Cabinet Rails

3
4

2
1
2
LJ-6276A.AI4

2–6 DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide

Installation

2.3.3.2 Attaching the Left Slide Assembly to the Cabinet Rails
To attach the left slide assembly to the cabinet rails, refer to Figure 2-4 and proceed as
follows:
1.

Determine the proper mounting holes for the left slide brackets.
The proper mounting holes are the 11th and 13th holes of the installation area (see Figure
2-2 and Figure 2-3).

2.
3.
4.
5.
6.
7.

Locate the left slide assembly .
Place the left front slide bracket on the inside of the left front rail and align the two slide
bracket holes with the 11th and 13th holes of the installation area on the left front rail.
Install two M6 x 1.5 mm screws  in the 11th and 13th holes of the installation area to
secure the left front slide bracket to the left front rail, but do not tighten.
Place the left rear slide bracket on the inside of the left rear rail and align the two slide
bracket holes with the 11th and 13th holes of the installation area on the left rear rail.
Install two M6 x 1.5 mm screws  in the 11th and 13th holes of the installation area to
secure the left rear slide bracket to the left rear rail, but do not tighten.
Tighten the two 8-32 screws and nuts that secure the left rear slide bracket to the left
slide assembly (shown in Figure 2-1).

2.3.4 Installing Cage Nuts on the Front Rails
Four cage nuts must be installed on the front cabinet rails to receive the thumb-screws on the
front bezel that secure the system to the rails. Use the following procedure to install the cage
nuts:
1.

Locate the 5th and 14th holes of the installation area on the left and right front rails (see
Figure 2-2).

Install a cage nut behind each mounting hole identified in step 1 by aligning it with the
hole and snapping it into place. Ensure that the threads of the cage nuts are on the inside
of the cabinet rails.

DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide 2–7

Installation

2.3.5 Attaching the Inner Races to the Chassis
To attach the inner slide races to the chassis, refer to Figure 2-5 and proceed as follows:
_____________________________Caution__________________________
When performing this procedure, ensure that the arrow  (shown in Figure 2-5)
points upward and the locking lever  points toward the front of the system.
Otherwise, the slide will be damaged when the system is installed on the slide
assemblies.
______________________________________________________________
Attach the right inner slide race  to the lower right side of the system chassis (as viewed
from the front) using four 8-32 pan-head screws .

Attach the left inner slide race  to the upper left side of the system chassis (as viewed from
the front) using four 8-32 pan-head screws .
Figure 2-5 Attaching the Inner Slide Races
1

2
5

4
3

4
LJ-06270.DWG

2–8 DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide

Installation

2.3.6 Mounting the System on the Slides
To mount the system on the slides, refer to Figure 2-6 and proceed as follows:
___________________________ WARNING _________________________
The custom AlphaServer 4100 system can weigh up to 45.36 kg (100 lb). Use
sufficient personnel or the proper lifting equipment when lifting or moving
the system.
______________________________________________________________
Pull both equipment slides  out fully to their locked positions.

Lift the chassis and position it so that the slide races  fit into the front end of the slides.

Push the system into the slides until it stops. Push up on the two locking levers  and
then push the system into the cabinet.

3.
4.

Pull up on the front of the system and securely tighten all eight M6 x 1.5 mm screws that
secure the slides to the cabinet rails.

Figure 2-6 Mounting the System on the Slides

3
1
2

LJ-06271.DWG

DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide 2–9

Installation

2.3.7 Connecting and Routing the Power Cord(s)
To install the power cord(s), refer to Figure 2-7 and proceed as follows:
1.
2.
3.

Attach the molded right angle power cord  to the left power supply ac input receptacle

located on the front of the chassis.

Route the power cord to the left and along the power cord tray  located on the upper
left side of the chassis.
Secure the power cord to the tray using tie wraps. Ensure that the tie wraps are positioned
so that they allow the chassis to slide in and out of the cabinet without catching on the
left front rail. Refer to Figure 2-10 to install the power cord strain relief on the rear of the
chassis.
______________________________ Note ___________________________
At this time, leave the other end of the power cord disconnected from the cabinet
power distribution unit. This connection serves as an ac power switch.
______________________________________________________________

If the system has a second power supply installed, repeat steps 1 through 3 to connect and
route the power cord that ships with the custom AlphaServer 4100 system for the right
power supply.

Figure 2-7 Connecting and Routing the Power Cord(s)
3

LJ-06269.DWG

2–10 DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide

Installation

2.3.8 Installing the Front Bezel
To install the front bezel, refer to Figure 2-8 and proceed as follows:
1.

Pull the system partially out of the cabinet.

Attach the front bezel  to the top left bracket on the front of the system chassis using
two 8-32 flat-head screws .

3.
4.
5.

Attach the front bezel  to the top right bracket on the front of the system chassis using
one 8-32 flat-head screw .
Attach the front bezel  to the bottom right bracket on the front of the system chassis
using two 8-32 flat-head screws .

Attach the front bezel  to the bottom bracket on the front of the system chassis using
one 8-32 flat-head screw .

Figure 2-8 Installing the Front Bezel

3
2

1
5

LJ-06273.DWG

DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide 2–11

Installation

After attaching the front bezel to the system chassis, push the system into the cabinet and
secure the system to the front rails with the four thumb-screws  on the front bezel (see
Figure 2-9).
Figure 2-9 Securing the System to the Cabinet Rails

1
1

LJ-06272.DWG

2–12 DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide

Installation

2.4 Installing the Swing Arm Cable Management Bracket
The cable management system consists of a swing arm cable management bracket and cable
tie wraps. When installed, the swing arm cable management bracket keeps the data cables and
power cord(s) in place to prevent them from being damaged when the system is pulled out or
pushed into the cabinet.
To install the swing arm cable management bracket, refer to Figure 2-10 and proceed as
follows:
1.
2.

3.
4.
5.

Locate the 4th, 5th, 6th, and 7th holes of the installation area on the left rear cabinet rail
(see Figure 2-3).
Install a U-nut  over each hole identified in step 1 by sliding the U-nut over the edge of
the cabinet rail and aligning it with the hole. Ensure that the threaded half of the U-nuts
are toward the inside of the cabinet.
Attach the swing arm cable management bracket  to the left rear cabinet rail using four
10-32 truss-head screws .
Attach the strain relief  for the power cord to the rear of the chassis.

The routing of cables to the swing arm cable management bracket is left to the
customer’s preference.

Figure 2-10 Installing the Swing Arm Cable Management Bracket

LJ-6277A.AI4

DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide 2–13

Installation

2.5 Installing the 2T-EXBAY Options
There are five 2T-EXBAY options that can also be installed in the Rittal cabinet. The five
options along with their components are listed in Table 2-1.
Table 2-1 2T-EXBAY Options
Option

Components

2T-EXBAY-01

BA370 chassis
Rackmount kit for BA370
Rittal mounting hardware
HSZ70 controller
Alpha host controller
Cables

2T-EXBAY-02

BA370 chassis, expansion
Rackmount kit for BA370
Rittal mounting hardware
Cables

2T-EXBAY-03

HSZ70 controller
Alpha software kit

2T-EXBAY-05

BA370 chassis
Rackmount kit for BA370
Rittal mounting hardware
HSZ70 controller
Intel host controller
Cables

2T-EXBAY-06

HSZ70 controller
Intel software kit

To install the 2T-EXBAY options in a Rittal cabinet, refer to the MP-03775-01 print set
drawing and the DIGITAL StorageWorks Ultra SCSI RAID Enclosure (DS-BA370-Series)
User’s Guide (EK-BA370-UG).
____________________________WARNING_________________________
The BA370 chassis weighs over 90.72 kg (200 lb). Use sufficient personnel or
the proper lifting equipment when lifting or moving the chassis.
______________________________________________________________

2–14 DIGITAL Custom AlphaServer 4100 System in a Rittal Cabinet Installation Guide