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Document:	BA35X-VA Vertical Mounting Kit User's Guide
Order Number:	EK-350SV-UG
Revision:	A01
Pages:	18
Original Filename:

OCR Text

BA35X–VA Vertical Mounting Kit
User’s Guide
Order Number: EK–350SV–UG. A01
This manual describes the rules for configuring the BA35X–VA vertical
mounting kit and the procedures for replacing system building blocks
(SBBs) and shelves.

Digital Equipment Corporation
Maynard, Massachusetts

First Edition: November 1992
The information in this document is subject to change without notice and should not be construed
as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no
responsibility for any errors that may appear in this document.
The software described in this document is furnished under a license and may be used or copied
only in accordance with the terms of such license.
No responsibility is assumed for the use or reliability of software 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
as set forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software
clause at DFARS 252.227-7013.
Copyright © Digital Equipment Corporation 1992
Printed in U.S.A.
All Rights Reserved.
The postpaid READER’S COMMENTS card requests the user’s critical evaluation to assist in
preparing future documentation.
FCC NOTICE: The equipment described in this manual generates, uses, and may emit radio
frequency energy. The equipment has been type tested and found to comply with the limits for
a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed
to provide reasonable protection against such radio frequency interference when operated in a
commercial environment. Operation of this equipment in a residential area may cause interference,
in which case the user at his own expense may be required to take measures to correct the
interference.
DECsystem, MicroVAX, RZ, VAXserver, and the DIGITAL logo are trademarks of Digital Equipment
Corporation.

This document was prepared using VAX DOCUMENT, Version 2.0.

Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Introducing the Vertical Mounting Kit
1.1
1.2
1.3

Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–2
1–3

2 Replacement Procedures
2.1
2.2
2.3
2.4

Components of the Vertical Mounting Kit . . . . . . . . . . . . . . . . . . . . . . . . .
Installing SBBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing SBBs or Blowers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing a Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2
2–3
2–4
2–5

Typical BA35X–VA Vertical Mounting Kit . . . . . . . . . . . . . . . . . . . . . .
Shelf Orientation in a Single Vertical Mounting Kit . . . . . . . . . . . . . .
BA35X–VA Vertical Mounting Kit Assembly Drawing . . . . . . . . . . . . .
Slot Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–3
2–3
2–4

Physical Specifications of the Vertical Mounting Kits . . . . . . . . . . . . .
Country-Specific Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2
1–4

Index
Figures
1–1
1–2
2–1
2–2

Tables
1–1
1–2

iii

Preface
The BA35X–VA Vertical Mounting Kit User’s Guide describes the rules for
configuring the BA35X–VA vertical mounting kit and the procedures for replacing
system building blocks (SBBs) and DECstor/me modular storage shelves.

Intended Audience
This manual is intended for personnel who are responsible for configuring,
installing, and using BA350 DECstor/me modular storage shelf subsystems.

Structure
This manual is organized as follows:
Chapter 1

Provides an overview of the vertical mounting kit and describes
configuration rules and ac power distribution.

Chapter 2

Contains the procedures for replacing SBBs, blowers, and shelves in a
vertical mounting kit. The sequence for installing SBBs in a shelf is
also included in this chapter.

Related Documents
The following table lists documents (alphabetically by title) that contain
information related to this product:
Document Title

Order Number

BA350 Modular Storage Shelf SBB User’s Guide

EK–SBB35–UG

BA350 Modular Storage Shelf Subsystem Configuration Guide

EK–BA350–CG

BA350 Modular Storage Shelf Subsystem User’s Guide

EK–BA350–UG

BA350–EA Modular Storage Shelf User’s Guide

EK–350EA–UG

BA350–LA Modular Storage Shelf User’s Guide

EK–350LA–UG

BA350–SA Modular Storage Shelf User’s Guide

EK–350SA–UG

Installation Notice—RZ73 Bus Termination and Jumper
Installation Guide

EK–RZ73X–IS

MicroVAX/VAXserver 3100 and DECsystem 5100 RZ25
Installation Guide Addendum

EK–RZ2MV–AD

RZ Series Disk Drive Reference Manual

EK–RZXXD–RM

RZ22, RZ23, RZ24 Disk Drive Subsystem Service Manual

EK–RZ234–SV

RZ24 Hard Disk Drive Installation Guide

EK–RZ24I–IS

RZ25–S Mounting Bolt/Bracket Installation Instructions

EK–RZ25S–IN

RZ2x Hard Disk Drive Upgrade Installation Instructions

EK–RZ2XH–UG

Document Title

Order Number

RZ2x Series Drive Bracket Installation Sheet

EK–RZ2XD–UG

TLZ06 Cassette Tape Drive Installation Guide

EK–STEXP–AD

TLZ06 Cassette Tape Drive Owner’s Manual

EK–TLZ06–OM

Documentation Conventions
The following conventions are used in this manual:

boldface type

Boldface type indicates the first instance of terms being defined in text,
in the glossary, or both.

italic type

Italic type indicates emphasis and complete manual titles. In the
glossary, italic type is also used to indicate cross-references.

1
Introducing the Vertical Mounting Kit
This chapter describes the BA35X–VA vertical mounting kit. It also provides
configuration rules and ac power distribution information.

1.1 Product Description
A vertical mounting kit is a floor-mounted stand that encloses a DECstor/me
modular storage shelf. A typical BA35X–VA vertical mounting kit is shown in
Figure 1–1.
Figure 1–1 Typical BA35X–VA Vertical Mounting Kit

CXO-3639A-PH

This manual refers to two versions of the vertical mounting kit: a single vertical
mounting kit and a double vertical mounting kit, which are defined as follows:
•

A single vertical mounting kit is used to enclose a single-height shelf such
as the BA350–SA.

•

A double vertical mounting kit is made up of two vertical mounting kits
joined together and is used to enclose the double-height, BA350–EA shelf.

Introducing the Vertical Mounting Kit 1–1

Introducing the Vertical Mounting Kit
1.1 Product Description
The part number for both versions of the vertical mounting kit is the same:
BA35X–VA. Whether you purchase a single or double version depends on how
many vertical mounting kits you order. For each single-height shelf, order one
BA35X–VA vertical mounting kit; for each double-height (BA350–EA) shelf, order
two BA35X–VA vertical mounting kits.
For example, if your configuration uses one BA350–EA (double-height) shelf and
two BA350–SA (single-height) shelves, you would order four BA35X–VA vertical
mounting kits:
•

Two vertical mounting kits for the BA350–EA shelf

•

One vertical mounting kit for each BA350–SA shelf

No tools are required to assemble or disassemble a vertical mounting kit—the
parts ‘‘snap’’ together. Vertical mounting kits are shipped fully assembled with
the ac distribution unit and the modular storage shelf installed. The modular
storage shelf has system building blocks (SBBs) installed and small computer
system interface (SCSI) buses configured according to the customer’s order. Shelf
power supplies are connected to the ac distribution unit.
The physical specifications of the vertical mounting kits are described in
Table 1–1.
Table 1–1 Physical Specifications of the Vertical Mounting Kits
Specification

Single Vertical Mounting Kit

Double Vertical Mounting Kit

Height

578 mm (22.75 in)

Width

203 mm (10 in)

356 mm (14 in)

Depth

400 mm (15.75 in)

Weight

17 kg (37 lb)

29 kg (63 lb)

1.2 Configuration Rules
The following configuration rules apply to vertical mounting kits:
•

Measure capacities by the number of shelves that can be installed:
–

One BA350–SA shelf can be installed in a single vertical mounting kit.

–

One BA350–EA shelf can be installed in a double vertical mounting kit.

•

Connect no more than two vertical mounting kits in series to the same wall
receptacle. (Each vertical mounting kit has an unswitched ac outlet for this
purpose. See Section 1.3 for additional information.)

•

Mount all shelves with the power supply at the bottom (slot 7), as shown in
Figure 1–2.

•

Reserve slot 6 for either a redundant power supply or a battery backup unit
(BBU).

1–2 Introducing the Vertical Mounting Kit

Introducing the Vertical Mounting Kit
1.2 Configuration Rules
Figure 1–2 Shelf Orientation in a Single Vertical Mounting Kit
SCSI BUS
INPUT

0
1
2
3
4
5
6
POWER
AC
DISTRIBUTION

CXO-3633A-MC

To maintain the stability of a single vertical mounting kit, install SBBs in the
order specified in Section 2.2.

1.3 AC Power Distribution
Each vertical mounting kit has an ac distribution unit that provides switchcontrolled ac power to the shelf power supply. (The only exception to this is the
double vertical mounting kit used with the SZ200 RAID subsystem, which has
only one ac distribution unit.)
The ac distribution unit in your vertical mounting kit will be one of two types,
depending on when you purchased your kit:
•

The initial version of the ac distribution unit used with the vertical mounting
kits had an unswitched, built-in, 10.2-centimeter (4-inch) power cord for
connection to the ac distribution unit in a second vertical mounting kit.
The short length of this built-in cord did not allow for much flexibility in
configuration arrangements.

•

The second-generation ac distribution units have replaced the unswitched
power cord with a switched ac outlet. This ac outlet can be used for
connecting either another vertical mounting kit’s ac distribution unit or an
optional redundant power supply in a BA350–EA shelf. In either case, you
must order an ac power cord for this additional connection.

Introducing the Vertical Mounting Kit 1–3

Introducing the Vertical Mounting Kit
1.3 AC Power Distribution
Table 1–2 lists the power cords available for ac distribution units. These power
cords must be ordered separately because they are country specific. In general,
the power cords listed in Table 1–2 have the following characteristics:
•

Are rated at 10 amps at the specified operating voltage

•

Are 2.5 meters (8.2 feet) long

•

Have a country-specific plug

•

Have an IEC 320 C–14 compatible connector

The only exception is the BN27S–03 power cord used in Japan and the United
States; it is rated at 15 amps and is 3 meters (9.8 feet) long.
Table 1–2 Country-Specific Power Cords
Country

Voltage

Plug

Length
meters (feet)

Part No.

Australia

250 Vac

AS 3112 - 1981

2.5 (8.2)

BN19H–2E

Central Europe

250 Vac

CEE 7/7 (Schuko)

2.5 (8.2)

BN19W–2E

Denmark

250 Vac

Afsnit 107

2.5 (8.2)

BN19K–2E

Europe—Central

250 Vac

CEE 7/7 (Schuko)

2.5 (8.2)

BN19W–2E

India

250 Vac

BS 546

2.5 (8.2)

BN19S–2E

Ireland

250 Vac

BS 1363

2.5 (8.2)

BN19A–2E

Israel

250 Vac

SI 32

2.5 (8.2)

BN18L–2E

Italy

250 Vac

CEI 213–16/VII

2.5 (8.2)

BN19M–2E

Japan

125 Vac

NEMA 5–15

3.0 (9.8)

BN27S–031

New Zealand

250 Vac

AS 3112 - 1981

2.5 (8.2)

BN19H–2E

South Africa

250 Vac

BS 546

2.5 (8.2)

BN19S–2E

Switzerland

250 Vac

SEV 1011

2.5 (8.2)

BN19E–2E

United Kingdom

250 Vac

BS 1363

2.5 (8.2)

BN19A–2E

United States

125 Vac

NEMA 5–15

3 (9.8)

BN27S–031

This power cord is rated at 15 amps.

1–4 Introducing the Vertical Mounting Kit

2
Replacement Procedures
This chapter contains the following:
•

A brief description of the components of the vertical mounting kit

•

The sequence for installing system building blocks (SBBs) into a shelf

•

The procedure for replacing SBBs or blowers

•

The procedure for replacing shelves
Warning
A minimum of two people are needed to move a double vertical mounting
kit containing a BA350–EA shelf because its weight exceeds 18 kilograms
(40 pounds). Do not move vertical mounting kits with ac power cords
connected.

Replacement Procedures 2–1

Replacement Procedures
2.1 Components of the Vertical Mounting Kit

2.1 Components of the Vertical Mounting Kit
A standard vertical mounting kit is made up of the following components:
Note
The numbers in this list correspond to the numbered parts shown in
Figure 2–1.

Base and top.

Front and rear bezels, one of which must be removed when you are replacing
a component or changing the small computer system interface (SCSI)
configuration.
Warning
Service procedures that involve accessing the rear of the shelf or removing
the blower must be performed only by qualified service personnel.
To reduce the risk of electrical energy hazard, always disconnect the
power cords from the shelf power supplies before removing shelf blower
assemblies or performing service in the backplane area, such as modifying
the SCSI bus.

Front and rear doors, which are attached to bezels at the factory. These doors
do not need to be removed for normal servicing.

Two feet that can be mounted on either side. When installing multiple units,
the feet on adjoining sides are reversed so that they do not extend beyond the
sides of the vertical mounting kit.
Eight bezel clips.

A latch (factory-installed as part of the lock assembly).

A lock (factory-installed as part of the lock assembly).

A nut (factory-installed as part of the lock assembly).
An ac distribution unit which can be replaced only by a qualified Digital
Services engineer.
A BA350–SA shelf.
A mounting bracket that secures the top to the shelf. (The ac distribution
unit secures the base to the shelf.)
Four hinges, two on each door.
Note
The majority of vertical mounting kit components are duplicates and are
used in two places. For example, the base and top are identical. The only
difference is their orientation.

2–2 Replacement Procedures

Replacement Procedures
2.1 Components of the Vertical Mounting Kit
Figure 2–1 BA35X–VA Vertical Mounting Kit Assembly Drawing

2.2 Installing SBBs
The location of storage SBBs in a shelf is primarily governed by two things:
the SCSI bus and the stability of the vertical mounting kit. Having considered
both of these factors, Digital recommends that you install SBBs in the following
sequence (refer to Figure 2–2 for slot number locations):
1. Slot 7—Primary ac power supply
2. Slot 6—Redundant ac power supply, battery backup unit (BBU), or storage
SBB
3. Slot 5—Storage SBB
4. Slot 4—Storage SBB
5. Slot 3—Storage SBB
6. Slot 2—Storage SBB
7. Slot 1—Storage SBB
8. Slot 0—Storage SBB

Replacement Procedures 2–3

Replacement Procedures
2.2 Installing SBBs
Figure 2–2 Slot Numbers
SCSI BUS
INPUT

0
1
2
3
4
5
6
POWER
AC
DISTRIBUTION

CXO-3633A-MC

2.3 Replacing SBBs or Blowers
To replace an SBB or blower, use the following procedure:
Step

Procedure

Open the door.

Grasp the bezel at the bottom with one hand and steady the vertical mounting kit
with the other.

Pull down on the two tabs located inside the bezel at the bottom and pull the bezel
out and up.

Lift the bezel off the top.

Replace the SBB or blower as described in the shelf user’s guide.

Ensure that all eight bezel clips are firmly mounted and align the bezel with the
top.

Replace the bezel by holding the top of the bezel in place and rotating the lower
part down and in.

Snap the bezel into place on the base.

Apply power and verify proper operation.

10.

Close the door.

2–4 Replacement Procedures

Replacement Procedures
2.4 Replacing a Shelf

2.4 Replacing a Shelf
To replace a shelf in a vertical mounting kit, perform the following procedure:
Step
1.

Procedure
Open the door.

Turn off the ac power switches on the ac distribution unit.

Disconnect the ac input power cord from the wall receptacle and from the ac
distribution unit.

Grasp the bezel at the bottom with one hand and steady the vertical mounting kit
with the other.

Pull down on the two tabs located inside the bezel at the bottom and pull the bezel
out and up.

Lift the bezel off the top.

Disconnect the power cords from the ac power supplies.

Record the slot number of each storage SBB.

Starting with slot 0, remove all SBBs. Remove the ac power supply in slot 7 last.

10.

Record the connectors to which each SCSI cable is attached.

11.

Disconnect the SCSI cables from the shelf.

12.

Remove the rear bezel (repeat steps 4, 5, and 6).

13.

Remove the top.

14.

Remove the mounting bracket.

15.

Lift the shelf off the ac distribution unit.

16.

Align the shelf being installed so that slot 7 (the power slot) is at the bottom and
the front of the shelf is over the front of the ac distribution unit.

17.

Install the mounting bracket and the top.

18.

Ensure that all eight bezel clips are firmly mounted and align the bezel with the
top.

19.

Replace the bezel by holding the top of the bezel in place and rotating the lower
part down and in.

20.

Snap the bezel into place on the base.

21.

Connect the SCSI cables as noted in step 10.

22.

Install the ac power supply in slot 7.

23.

Starting with slot 6, install the SBBs in the slots noted in step 8.

24.

Connect the ac power cord to the shelf power supply.

25.

Replace the front bezel (repeat steps 18, 19, and 20).

26.

Verify that the ac power switch on the ac distribution unit is in the off position.

27.

Connect the ac input power cord to the ac distribution unit.

28.

Turn on the ac power switch and verify that the SBBs, SCSI buses, and blowers
are functioning properly.

Replacement Procedures 2–5

Index
A
AC distribution unit, 1–3
AC power, 1–3
See also Power cords
distribution unit, 2–2
input, 1–2
switched, 1–3
unswitched, 1–3

Shelves (cont’d)
BA350–SA, 1–1
Specifications
physical, 1–2
Stability
See Safety considerations
System building blocks
See SBBs
SZ200 RAID subsystem, 1–3

BA350–EA shelf, 1–1, 1–2
replacing, 2–5
BA350–SA shelf, 1–1, 1–2
replacing, 2–5
Blowers
replacing, 2–4

Vertical mounting kit
See also Configuration rules
capacity, 1–1, 1–2
components, 2–2
double, 1–1, 1–3
physical specifications, 1–2
product description, 1–1
single, 1–1

C
Cables
See Power cords
See SCSI cables
Configuration rules, 1–2

D
Documentation
related, v

P
Part number, 1–2
Parts, 2–2
Power cords, 1–4

S
Safety considerations, 1–3, 2–2
SBBs
installation sequence, 2–3
replacing, 2–4
SCSI buses, 1–2
SCSI cables, 2–5
Shelves
BA350–EA, 1–1

Index–1