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Document:	MicroVAX Site Preparation
Order Number:	EK-239AC-SP
Revision:	003
Pages:	43
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MicroVAX
Site Preparation
Order Number EK-239AC-SP-003

digital equipment corporation
maynard, massachusetts

July 1988
November 1988
March 1989
The information in this document is subject to change without notice and should not be
construed as a commitment by Digital Equipment Corporation.
Digital Equipment Corporation assumes no responsibility for any errors that may appear in
this document.
The software, if any, described in this document is furnished under a license and may be used
or copied only in accordance with the terms of such license. No responsibility is assumed
for the use or reliability of software or equipment that is not supplied by Digital Equipment
Corporation or its affiliated companies.
© Digital Equipment Corporation 1988, 1989. All rights reserved.

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

DIBOL
DSSI
MASSBUS
MicroVAX
PDP
PIOS
Professional
Q-bus
Rainbow
ReGIS
RQDX
RSTS

RSX
RT
ThinWire
ULTRIX
UNIBUS
VAX
VAXcluster
VAXELN
VAXlab
VMS
VT
Work Processor

mamaola'"
ML-SI119
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.
This document was prepared using VAX DOCUMENT, Version 1.1.

Contents
Preface

vii

Chapter 1 Physical Requirements
1.1 When Your Shipment Arrives ........................ .
1.2 Space Requirements ............................... .
Space for Additional Equipment and Cabling ......... .
1.2.1
Operating Environment ............................ .
1.3
Static Electricity ............................... .
1.3.1
Temperature and Humidity Ranges ................. .
1.3.2
Electrical Requirements .......................... .
1.3.3
Acoustics
..................................... .
1.3.4

1-1
1-1
1-1
1-2
1-2
1-3
1-3
1-4

Chapter 2 Site Preparation Specifications
2.1
Specifications for the BA23 System ................... . 2-1
2.1.1
Dimensions ................................... . 2-1
2.1.2
Heat, Humidity, Electrical Requirements, and Acoustics .. 2-1
2.2
Specifications for the BA123 System .................. . 2-4
Dimensions ................................... . 2-4
2.2.1
Heat, Humidity, Electrical Requirements, and Acoustics .. 2-4
2.2.2
2.3
Specifications for the BA213 System and the B213A1B213F
Expander ....................................... . 2-7
2.3.1
Dimensions ................................... . 2-7
2.3.2
Heat, Humidity, Electrical Requirements, Power Cables,
and Acoustics .................................. . 2-8
2.3.3
B213A Expander and B213F Expander: Additional Power
Requirements .................................. . 2-11
2.4
Specifications for the BA215 System and the R215F Expander 2-12
2.4.1
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-12
2.4.2
Heat, Humidity, Electrical Requirements, and Acoustics.. 2-13

iii

2.5
Specifications for the H9642 Cabinet. . . . . . . . . . . . . . . . . ..
2.5.1
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.5.2
Heat, Humidity, Electrical Requirements, and Acoustics..
2.6
Specifications for the H9644 Cabinet. . . . . . . . . . . . . . . . . ..
2.6.1
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
2.6.2
Heat, Humidity, Electrical Requirements, and Acoustics ..

2-15
2-15
2-19
2-22
2-22
2-25

Appendix Power Cable Order Numbers
Figures
2-1
2-2
2-3

Dimensions of a MicroVAX System in the BA23 Enclosure
Dimensions of a MicroVAX System in the BA123 Enclosure
Dimensions of a MicroVAX System in the BA213 Enclosure
and for the B213A and B213F Expanders ...............
2-4 Dimensions of a MicroVAX System in the BA215 Enclosure
2-5 Dimensions of the Shipping Container of a MicroVAX System
in the H9642 Cabinet ...............................
2-6 Dimensions of a MicroVAX System in the H9642 Cabinet ...
2-7 H9642 With Disk Drive Extended .....................
2-8 H9642 With Door Open .............................
2-9 Dimensions of the Shipping Container of a MicroVAX System
in the H9644 Cabinet ...............................
2-10 Dimensions of a MicroVAX System in the H9644 Cabinet ...

2-2
2-5
2-8
2-12
2-16
2-17
2-18
2-19
2-23
2-24

Tables
2-1
2-2
·2-3
2-4
2-5
2-6
A-I
A-2

BA23 System Specifications. . . . . . . . . . . . . . . . . . . . . . . . .. 2-3
BA123 System Specifications .. . . . . . . . . . . . . . . . . . . . . . .. 2-6
BA213 System or B213AJB213F Expander
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-9
BA215 System or R215F Expander
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-14
H9642 System Specifications . . . . . . . . . . . . . . . . . . . . . . . .. 2-20
H9644 System Specifications . . . . . . . . . . . . . . . . . . . . . . . .. 2-26
Power Cables for the BA23 and BA123 Enclosures. . . . . . .. A-I
Power Cables for the BA213 Enclosure and MicroVAX 3600
Host With a B213A Expander. . . . . . . . . . . . . . . . . . . . . . .. A-2

A-3
A-4
A-5
A-6
A-7
A-8

Power Cables for MicroVAX 3500/3800 Systems With B213A
or B213F Expanders ...............................
Power Cables for the H9642 and H9644 Cabinets . . . . . . . ..
Power Cables for the BA215 Enclosure and for the R215F
Expander .................... : . . . . . . . . . . . . . . . . . ..
Power Cables for the H9642 and H9644 Cabinets and the
886B Controlled Power Switch. . . . . . . . . . . . . . . . . . . . . . ..
Power Cables for MicroVAX 35001 3600 Systems in the
BA213 Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . ., . . . . ..
Power Cables for the MicroVAX 3300 System in the BA215
Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

A-2
A-3
A-3
A-4
A-4
A-4

Preface
This manual is a guide to preparing a site for a MicroVAX system. It
describes the physical, environmental, and power requirements of each
MicroVAX system and expander.
To ensure smooth operation and installation of a MicroVAX system or
expander, your site should meet the requirements found in this document
before the arrival of your system shipment.

Intended Audience
This manual is intended for DIGITAL service personnel and DIGITAL
customers who wish to install their MicroVAX systems and intend to
perform self-maintenance.

NOTE: DIGITAL recommends that a DIGITAL service representative install
your system.
If you are a customer preparing your site for a MicroVAX system, please
be aware that DIGITAL provides a site preparation service. If you decide
you would like a DIGITAL professional to prepare your site, contact your
DIGITAL service representative.

Systems, Enclosures, and Expanders
MicroVAX systems, enclosures, and expanders that are covered by this
manual are listed in the following table. To use this table, look up the name
of your system. Then move across to the enclosure or expander your system
comes in. Go to Chapter 2 to find the specifications for each enclosure and
expander.

vii

MicroVAX Systems, Enclosures and Expanders Covered by This Manual
System

Enclosure

Expander

MicroVAXII
MicroVAXII
MicroVAX 3300
VAXserver 3300
MicroVAX 3400
VAXserver 3400
MicroVAX 3500
VAXserver 3500
MicroVAX 3600
VAXserver 3600
VAXserver 3602
MicroVAX 3800
VAXserver 3800
MicroVAX 3900
VAXserver 3900

BA23, BAI23
H9642
BA2I5
BA2I5
BA2I3
BA2I3
BA2I3
BA2I3
H9644
H9644
H9644
BA2I3
BA2I3
H9644
H9644

R2I5F
None
R2I5F
R2I5F
R2I5F
R2I5F
R2I5F, B2I3A, B2I3F
R2I5F, B2I3A, B2I3F
H9644
H9644
H9644
R2I5F, B2I3F
R2I5F, B2I3F
H9644
H9644

Manual Structure
This manual contains two chapters and one appendix. It is organized as
follows:
•

Chapter 1 contains general information about the physical, environmental and power requirements for MicroVAX systems.

•

Chapter 2 contains specific information about each MicroVAX system
configuration. The following information is provided:
1. System dimensions (both with and without the shipping carton)

2. Acceptable temperature and humidity ranges (operating and
nonoperating)
3. Electrical requirements
4. Noise levels
•

The appendix lists the power cable order numbers for each MicroVAX
system and expander for both 120 Vac and 240 Vac operation.

Use this manual to prepare your site for your MicroVAX system. Refer to
Chapter 1 for general environmental requirements. Then refer to Chapter
2 for the specific requirements for your MicroVAX system.

viii

Conventions
The following conventions are used in this book:
Convention

Meaning

NOTE

Provides general information about the current topic.

CAUTION

Provides information to prevent damage to equipment or software.

WARNING

Provides information to prevent personal injury.

Chapter 1

Physical Requirements
A MicroVAX system's physical requirements are determined by system
dimensions (both before and after the shipping carton has been removed),
space for cabinet doors to swing open, space for peripheral computer
equipment such as printers and terminals, and allowances for the noise
emission level of the system.

1.1 When Your Shipment Arrives
Your MicroVAX system is shipped in one large box. Other boxes that
arrive with the shipment may contain terminals, printers, software, and
the Customer Hardware Information kit. When the system arrives, you
should inspect it with a DIGITAL service representative to ensure that the
system and all ordered options have arrived undamaged. When you are
ready to begin installation, find the Customer Hardware Information kit
and begin using the Installation manual to install your MicroVAX system.

1.2 Space Requirements
Before unpacking any system, make sure you have enough space to remove
the system from its shipping container. Also make sure you leave enough
space around the system so it can be serviced. Use information in Chapter
2 to determine your system's dimensions.

1.2.1 Space for Additional Equipment and Cabling
In addition to the space required for the MicroVAX system or expander, you
should ensure there is enough space for terminals, printers, mass storage
media, printer paper, and other necessary supplies.
If you plan to connect your system to peripheral devices such as printers,
terminals, or modems, you will need additional cabling. Cables that connect
the system to peripheral devices must be ordered separately.
When planning cable routing for multiple-terminal systems, you should
consider factors such as safety, convenience, future expansion, and cost.
The system installer has other special factors to consider when cabling a
multiple-terminal system on more than one floor in the same building, or
in more than one building. DIGITAL offers several cable types for these
Physical Requirements

1-1

applications, and DIGITAL service personnel are available to help you plan
your installation. Your sales representative can provide more information.
NOTE: Cabling from peripheral devices should already be in place and
labeled before the system is installed.

1.3 Operating Environment
Computer systems are subject to discharge of static electricity, temperature
changes, and humidity. These conditions can affect the operation and
overall dependability of the computer system.
Your system should be installed in a well-ventilated area, where the
temperature and humidity ranges listed for your system are maintained
throughout the year. Rapid temperature changes may affect system
performance. Therefore, do not operate systems near heating or cooling
devices, large windows, or doors that open to the outside. Air should contain
a minimum of dust and other abrasive contaminants.
Mass storage media and other computer supplies, including paper, should
be kept at the same temperature and humidity as that of the computer
area.

1.3.1 Static Electricity
Static electricity is a common problem for microcomputer systems. It can
cause system failure and loss of data. The most common source of static
buildup is contact between people and carpeting or clothing. Low humidity
allows the greatest buildup of static charges.

To minimize static buildup, follow these guidelines.
•

Maintain relative humidity of at least 40 percent.

•

Locate your system away from busy office corridors.

•

If possible, avoid using carpeting in the computer area. If you install
carpeting, use antistatic carpeting. If carpeting is already installed,
place a grounded, antistatic mat under the system.

•

If your site has antistatic floors, carpeting, or mats, make sure you
maintain their antistatic properties by following the manufacturer's
recommendations for cleaning.

1-2 MicroVAX Site Preparation

1.3.2 Temperature and Humidity Ranges
To function properly, each MicroVAX system and expander must operate
in an environment with acceptable temperature and humidity ranges.
To determine the appropriate temperature and humidity ranges for your
system, refer to Chapter 2 and the specifications for your particular system.
When calculating the operating temperature in your computer environment, consider the heat th~t the system, peripherals, and other equipment
in the computer room generates. See the tables in Chapter 2 for the amount
of heat dissipated by each MicroVAX system and expander enclosure.

1.3.3 Electrical Requirements
In determining the electrical requirements of a MicroVAX system
configuration, consider the following:
•

Whether 100 Vac, 120 Vac, or 240 Vac is used

•

What country the system is located in

•

Voltage range

•

Power source phase

•

Nominal frequency

•

.Frequency range

•

Steady-state current

•

Power consumption

When you are ready to use the above information, turn to Chapter 2 and
find the electrical requirements for your system.
The power source should be able to handle the original system and allow
for system expansion. DIGITAL recommends a dedicated circuit from the
power source to each MicroVAX system configuration. A dedicated, isolated
ground circuit provides electrical isolation from possible power surges or
electrical noise caused by other electrical equipment. You should not
connect any other equipment such as air conditioners, office copiers, or
coffee pots to the same circuit as the MicroVAX system.
If you cannot avoid power disturbances, your system will need additional
power-conditioning equipment.
For more information, contact your
DIGITAL sales representative.

NOTE: MicroVAX system configurations operate at either 100, 120, or 240
Vac. 7b operate the MicroVAX system configuration at 240 Vac, obtain the

Physical Requirements 1-3

power cable for use in your country. The appendix lists the power cables
used to operate each system at 240 Vac. To operate the Micro VAX system
configuration at 100 or 120 Vac, use the power cable that is included with
your system shipment.

1.3.4 Acoustics
Computer systems generate noise. Higher than acceptable noise levels can
adversely affect a work environment. MicroYAX systems using the H9642
or H9644 cabinet emit more noise than is acceptable for office use and
should be installed in a computer room. The tables for each system suggest
where to place the MicroVAX enclosure and expander.

1-4 MicroVAX Site Preparation

Chapter 2

Site Preparation Specifications
This chapter lists each enclosure's dimensions, along with acceptable
system temperature and humidity ranges, electrical requirements and
acoustic levels. The section on your system gives you information to use in
preparing your site for your MicroVAX system.
To· :find which enclosure your system comes in, go to the table in the

Preface. Find your system. Then:find the enclosure or expander your
system includes. Look up the specifications for that enclosure or expander
in this chapter.

2.1 Specifications for the BA23 System
Use the information in this section to prepare your site for MicroVAX
systems in the BA23 enclosure.

2.1.1 Dimensions
Figure 2-1 shows the dimensions of a MicroVAX system in the BA23
enclosure. The figure also shows the dimensions of the shipping container.
CAUTION: Use at least two people to handle the system and terminal boxes.
,

2.1.2 Heat, Humidity, Electrical Requirements, and Acoustics
The BA23 enclosure operates within or at the values listed for temperature
and humidity, electrical requirements, and acoustics in Table 2-1.

Site Preparation Specifications 2-1

Figure 2-1: Dimensions of a MicroVAX System in the BA23 Enclosure

TABLETOP

29.5 kg (65 Ib)

56.2 em

~(2:1.2in)

TABLETOP
CONVERSION

MLCl-001348

2-2 MicroVAX Site Preparation

Table 2-1: BA23 System Specifications
Heat Dissipation, Temperature, and Humidity Ranges
Condition

Measure

Heat'dissipation

1177.4 BTU/h
Operating:

100 e to 40 0 e
50°F to 104°F

Nonoperating:

-4Oo e to 600 e
-40°F to 140°F

Temperature rate of change

Operating:

11°e per hour maximum
19.8°F per hour maximum

Relative humidity

Operating:

20% to 80%
(noncondensing)

Nonoperating:

10% to 95%

Operating:

2440 m (8000 ft)

Nonoperating:

4900 m (16,000 ft)

Temperature

Maximum altitude

NOTE: Decrease the operating temperature range values by 1.8°e per 1000 m above sea level
(1°F Per 1000 ft).

Electrical Requirements
NominalAC Voltage ~

lOOVac

120Vac

220-240Vac

Voltage range

90 to 110Vac

104 to 128 Vac

191 to 256 Vac

Power source phase

Single

Nominal frequency

50 to 60 Hz

Frequency range

47 to 63 Hz

Maximum steady-state
CUlTent at nominal voltage

5.3A

4.4 A

2.2A

Maximum steady-state CUlTent 6 A
at minimum voltage

5.5A

2.7 A

Maximum inrush CUlTent

100 A

100A

Maximum power consumption

345,W

345W

Site Preparation'Specifications 2-3

Table 2-1 (Cont.): BA23 System Specifications
Operating Acoustic Emission Levels

LNPE (B)

LPA(dB)

6.1

Recommended placement

Open office environment

LNPE = Noise power emission level (A-weighted sound power level) measured in bels reference
1 picowatt.
LPA = Sound pressure measured in decibels at 1.0 m from the front edge of the unit and 1.5
m above the floor.
Levels may be lower than those shown, depending on the kind and number of mass storage
devices in the system.
All data measured in accordance with ANSI S12.10-1985 (American National Standards
Institute) and ISOIDIS 7779 (International Standards Organization).

NOTE: 7b operate the BA23 enclosure at 240 Vac, obtain the appropriate
power cable for use in your country. See the appendix for order numbers.

2.2 Specifications for the BA123 System
Use the information in this section to prepare your site for MicroVAX
systems in the BA123 enclosure.

2.2.1 Dimensions
figUre 2-2 shows the dimensions of a MicroVAX system in the BA123
enclosure. The figUre also shows the dimensions of the shipping container.
CAUTION: Use at least two people to handle the system and terminal boxes.

2.2.2 Heat, Humidity, Electrical Requirements, and Acoustics
The BA123 enclosure operates within or at the values listed in Table 2-2
for temperature and humidity, power requirements, and noise levels.

2-4 MicroVAX Site Preparation

Figure 2-2:

Dimensions of a MicroVAX System in the BA123 Enclosure

WEIGHT: 80 kg (220 Ib)

WEIGHT: 59 kg (130 Ib)
MLO-001349

Site Preparation Specifications 2-5

Table 2-2: BA123 System Specifications
Heat Dissipation, Temperature, and Humidity Ranges
Condition

Measure

Heat dissipation

2355 BTUfh
Operating:

10°C to 40°C
50°F to 104°F

Nonoperating:

-40°C to 60°C
-40°F to 140°F

Temperature rate of change

Operating:

11°C per hour maximum
19.8°F per hour maximum

Relative humidity

Operating:

20% to 80%
(noncondensing)

Nonoperating:

10% to 95%

Operating:

2440 m (8000 ft)

Nonoperating:

4900 m (16,000 ft)

Temperature

Maximum altitude

NOTE: Decrease the operating temperature range val~s by 1.8°C per 1000 m above sea level
(1°F per 1000 ft).

Electrical Requirements
NominalAC Voltage =>

100Vac

120Vac

220-240Vac

Voltage range

90 to 110 Vac

104 to 128 Vac

191 to 256 Vac

Power source phase

Single

Nominal frequency

50 to 60 Hz

Frequency range

47 to 63 Hz

Maximum steady-state
current at nominal voltage

10.5 A

8.8A

4.4 A

Maximum steady-state current 12A
at minimum voltage

11A

5.5A

100 A

Maximum power consumption 690W

690W

Maximum inrush current

NOTE: To operate the BA123 enclosure at 240 Vac, obtain the appropriate power cable for
use in your country. See the appendix for order numbers.

2-6

MicroVAX Site Preparation

Table 2-2 (Cont.): BA123 System Specifications
Operating Acoustic Emission Levels
LNPE (B)

LPA (dB)

6.0

Recommended placement

Open office environment

2.3 Specifications for the BA213 System and the
B213A1B213F Expander
Use the information in this section to prepare your site for MicroVAX
systems in the BA213 enclosure, and for the B213A and B213F expanders.

2.3.1 Dimensions
Figure 2-3 shows the dimensions of a MicroVAX system in the BA213
enclosure and for the B213A and B213F expanders. The figure also shows
the dimensions of the container used to ship the BA213 enclosure and the
B213A and B213F expanders.
CAUTION: Use at least two people to handle the syste1J1, and terminal boxes.

You must leave at least 1 m (39 in) of clearance at the front of the system,
for access to system controls. You also must leave at least 5 cm (2 in) of
clearance at the sides and rear for airflow. Since the base of the enclosure
is 5 cm (2 in) wider than the cabinet in front and rear, you can place the
rear of the system against a wall or table, and the system will have enough
room for adequate airflow.

Site Preparation Specifications 2-7

Figure 2-3:

Dimensions of a MicroVAX System in the BA213 Enclosure
and for the B213A and B213F Expanders

77.scm~
(30.5 in)

~0.6cm
(23.88 in)

->-

1111111

ttf1

WEIGHT: 63.5 kg 10 85.3 kg
(140 Iblo 1881b)

MI.O-001350

2.3.2 Heat, Humidity, Electrical Requirements, Power
Cables, and Acoustics
The BA213 enclosure, B213A and B213F expanders operate within or at
the values for temperature and humidity, power requirements, and noise
levels in Table 2-3. This table also lists power cables and components you
need to operate the B213A and B213F expanders with the MicroVAX 3500
and MicroVAX 3800 systems.

NOTE: The B213F expander cannot be used with the MicroVAX 3600 or
3900 systems.

2-8 MicroVAX Site Preparation

Table 2-3: BA213 System or B213A1B213F Expander
Specifications
Heat Dissipation, Temperature, and Humidity Ranges
Condition

Measure

Heat dissipation

2304 BTUIh

Temperature

Operating:

10°C to 40°C
50°F to 104°F

Nonoperating:

-40°C to 66°C
-40°F to 151°F

Temperature rate of change

Operating:

11°C per hour maximum
19.soF per hour maximum

Relative humidity

Operating:

20% to SO%
(noncondensing)

Nonoperating:

10% to 90%

Operating:

2440 m (SOOO ft)

Nonoperating:

4900 m (16,000 ft)

Maximum altitude

NOTE: Decrease the operating temperature range values by l.soC per 1000 m above sea level
(1°F per 1000 ft).

Electrical Requirements
NominalAC Voltage =?

101 Vac

120Vac

220-240Vac

Voltage range

90 to 110 Vac

104 to 12S Vac

190 to 256 Vac

Power source phase

Single

Nominal frequency

50 to 60 Hz

Frequency range

49 to 61 Hz

Maximum steady-state
current at nominal voltage

10.2 A

S;6A

4.7 A

Maximum steady-state current 11.4 A
at minimum voltage

9.9A

5.4 A

Maximum inrush current

100 A

1030W

100 A

Maximum power consumption 1030W
with 0.65 power factor

NOTE: To operate the BA213 enclosure at 240 Vac, obtain the appropriate power cable for
use in your country. See the appendix for order numbers.

Site Preparation Specifications

2-9

Power Cables and Components for Use with MicroVAX 3500/3800 Systems
with BA213A or B213F Expanders
120Vac

240Vac

886A (Controlled Power Switch)

886B (Controlled Power Switch)

17-00083-43

17-00365-06
Country-specific power cable for the
886B controlled power switch

NOTES: One 17-00083-43 power cable is included with the MicroVAX 3500 or MicroVAX
3800 system shipment; a second is included with the B213A expander shipment.

The country-specific power cable is included with the B213A expander shipment, but must be
specified in the customer order. See the appendix for order numbers.

Operating Acoustic Emission Levels
LNPE (B)

LPA (dB)

5.8

Recommended placement

Open office environment

2-10

MicroVAX Site Preparation

2.3.3 B213A Expander and B213F Expander: Additional
Power Requirements
The B213F expander can be used with the MicroVAX 3400,3500, and 3800
systems only. The B213A is RA based and the B213F is RF based. Although
the B213F has the same specifications as the B213A expander, it cannot be
used with MicroVAX 3600 or 3900 systems.
If you are preparing a site for the B213A expander, several additional power
requirements must be considered.

Use the following information to ensure you have all required power cables
and components, which differ depending on whether the B213A is to be
used with the MicroVAX 3500 or the MicroVAX 3600 system. The MicroVAX
3300, 3400, 3800, and 3900 systems do not use the B213A expander.
MicroVAX 3500 with the B213A or B213F Expander and MicroVAX 3800
System with the B213F Expander

To operate a B213A or B213F expander with the MicroVAX 3500 system, or
to operate the R215F expander with the MicroVAX 3800 system, you need
a controlled power switch (886A1B) and from one to three additional power
cables.
CAUTION: Depending on whether you are using 120 Vac or 240 Vac, you
will also need an electrical receptacle rated at the following amperage:

•

For 120 Vac operation, Micro VAX 3500 systems with the B213A expander
and Micro VAX 3800 systems with the B213F expander must use a NEMA
(National Electrical Manufacturers Association) L5-30R ac electrical
receptacle rated at 30 A (U.S.).

•

For 240 Vac operation, Micro VAX 3500 systems with the B213A expander
and MicroVAX 3800 systems with the B213F expander require a
minimum service of 10 A with a country-specific electrical receptacle.

MicroVAX 3600 System with the B213A Expander

To operate the B213A expander with the MicroVAX 3600 system, you will
need two separate power sources: one for the MicroVAX 3600, and another
for the B213A expander. DIGITAL recommends that both power lines come
from the same power panel to ensure the same ground potential for both
units.
Use the appropriate country-specific power cable for each unit. The order
numbers of the power cables are listed in the appendix.

Site Preparation Specifications 2-11

2.4 Specifications for the BA215 System and the
R215F Expander
Use the information in this section to prepare your site for MicroVAX
systems in the BA215 enclosure and for the R215F expander.

2.4.1 Dimensions
Figure 2-4 shows the dimensions of a MicroVAX system in the BA215
enclosure. The figure also shows the dimensions of the container used to
ship the BA215 and the R215F.
CAUTION: Use at least two people to handle the system and terminal boxes.

Figure 2-4:

Dimensions of a MicroVAX System in the BA215 Enclosure

"",..

1111 ,,~

(27 in)

WEIGHT: 45 kg to 59 kg
(100 Ib to 130 Ib)

\
WEIGHT: 31.8 kg to 36.3 kg
(70 Ib to 80 Ib)

2-12

MicroVAX Site Preparation

MLO-001351

You must leave at least 1 m (39 in) of clearance at the front of the system,
for access to system controls. You also must leave at least 5 em (2 in) of
clearance at the sides and rear for airflow. Since the base of the enclosure
is 5 cm (2 in) wider than the cabinet in front and rear, you can place the
rear of the system against a wall or table, and the system will have enough
room for adequate airflow.

2.4.2 Heat, Humidity, Electrical Requirements, and Acoustics
MicroVAX. systems in the BA215 enclosure and the R215F expander
operate within or at the values listed in Table 2-4. These values include
temperature, humidity, power, and acoustical levels.
NOTE: The R215F can be used with the MicroVAX 3300,3400,3500, and
3800 systems.

Site Preparation Specifications 2-13

Table 2-4: BA215 System or R215F Expander
Specifications
Heat Dissipation, Temperature, and Humidity Ranges
Condition

Measure

Heat dissipation

1178BTUIh
Operating:

10°C to 40°C
50°F to 104°F

Nonoperating:

-40°C to 66°C
-40°F to 15PF

Temperature rate of change

Operating:

11°C per hour maximum
19.8°F per hour maximum

Relative humidity

Operating:

20% to 80%
(noncondensing)

Nonoperating:

10% to 90%

Operating:

2438 m (8000 it)

Nonoperating:

4900 m (16,000 ft)

Temperature

Maximum altitude

NOTE: Decrease the operating temperature range values by 1.8°C per 1000 m above sea level
(l°F per 1000 ft).

Electrical Requirements
NominalAC Voltage ~

101 Vac

120Vac

220-240Vac

Voltage range

88 to 110 Vac

93 to 132 Vac

176 to 264 Vac

Power source phase

Single

Nominal frequency

50 to 60 Hz

Frequency range

47 to 63 Hz

Maximum steady-state
current at nominal voltage

5.2A

4.4 A

2.4 A

Maximum steady-state current 8.3 A
at minimum voltage

7.2A

3.9A

Startup current (30 seconds)
at nominal voltage

7.1A

5.9A

3.1A

Maximum inrush current

50A

2-14

MicroVAX Site Preparation

Table 2-4 (Cont.): BA215 System or R215F Expander
Specifications
Electrical Requirements
NominalAC Voltage ==?

101 Vac

120Vac

220-240Vac

Maximum power consumption

340 W

340W

NOTE: To operate the BA215 enclosure or the R215F expander at 240 Vac, obtain the
appropriate power cable for use in your country. See the appendix for order numbers.

Operating Acoustic Emission Levels

LNPE (B)

LPA (dB)

6.1

Recommended placement

Open office environment

LNPE = Noise power emission level (A-weighted sound power level) measured in bels.reference
1 picowatt.
LPA = Sound pressure measured in decibels at 1.0 m from the front edge of the unit and 1.5
m above the floor.
Levels may be lower than those shown, depending on the kind and number of mass storage
devices in the system.
All data measured in accordance with ANSI S12.10-1985 (American National Standards
Institute) and ISOIDIS 7779 (International Standards Organization).

2.5 Specifications for the H9642 Cabinet
Use the information in this section to prepare your site for MicroVAX
systems in the H9642 cabinet.

2.5.1 Dimensions
Systems that use the H9642 cabinet are shipped in large containers secured
to wooden pallets by four metal hold-down brackets. Other containers
arriving with your shipment may contain terminals, printers, software,
and other options. Plan to use about 3 m (10 ft) of floor space for removing
each cabinet from its pallet.

WARNING: Do not try to move or lift this equipment without a forklift.

Site Preparation Specifications 2-15

The cabinet is mounted on four wheels and has four adjustable leveling feet
for stability.
The weight of systems using the H9642 cabinet varies from 168 kg to 311
kg (358lb to 685Ib), depending on the mass storage subsystems contained
in the cabinet. Plan your installation accordingly. A fully loaded system
with RA60 and RA81 disk drives weighs 311 kg (685Ib).
Figure 2-5 shows the dimensions of the shipping container of a MicroVAX
system in the H9642 cabinet.
Figure 2-5: Dimensions of the Shipping Container of a MicroVAX
System In the H9642 Cabinet

147.3 em
(58 in)

WEIGHT: 168 kg to 311 kg
(358 Ib to 685 Ib)

2-16 MicroVAX Site Preparation

MLO-000447

Figure 2-6 shows the dimensions of a MicroVAX system in the H9642
cabinet when shipping materials have been removed.
Leave a minimum of 1.2 m (4 ft) from the front of the system to the
nearest stationary object so the disk drives can be extended. The drives
are approximately 86.5 em (33.75 in) deep. Figure 2-7 shows the H9642
with the disk drives removed
Figure 2-6:

Dimensions of a MicroVAX System In the H9642 cabinet

105.9 em

(41.7 in)

WEIGHT: 168 kg to 311 kg
(358 Ib to 685 Ib)

MLO-OO1352

Site Preparation Specifications 2-17.

Figure 2-7:H9642 With Disk Drive Extended

V 11===~"x~=dF====n
WALL

DISK DRIVE

1.22 m
. - - - - - (4 ft) - - - - - - I

STABILlZER~CT

MLO-OO1353

Leave a minimum of 1.2 m (4 ft) from the rear of the system to the nearest
stationary object, so the rear door can be opened or removed. The rear door
is approximately 51.3 cm (20.0 in) wide.
Leave space on each side of the system to remove the side panels.
FigQ.re 2-8 shows an H9642 with the door open.

2-18

MicroVAX Site Preparation

Figure 2-8: H9642· With Door Open

Ml.0-001354

2.5.2 Heat, Humidity, Electrical Requirements, and Acoustics
The H9642 cabinet operates within or at the values listed for temperature
and humidity ranges, power requirements, and noise levels in Table 2-5.

Site Preparation Specifications 2-19

Table 2-5: H9642 System Specifications
Heat Dissipation, Temperature, and Humidity Ranges
Condition

Measure

Heat dissipation

5872 BTU/h at 120 Vac
6022 BTU/h at 240 Vac

Temperature

Operating:

15°C to 32°C
59°F to 90°F

Nonoperating:

-40°C to 66°C
-40°F to 151°F

Temperature rate of change

Operating:

11°C per hour maximum
19.8°F per hour maximum

Relative humidity

Operating:

20% to 80%
(noncondensing)

Nonoperating:

10% to 90%

Operating:

2440 m (8000 ft;)

Nonoperating:

4900 m (16,000 ft)

Maximum altitude

NOTE: Decrease the operating temperature range values by 1.8°C per 1000 m above sea level
(1°F per 1000 ft).

Electrical Requirements
Nominal AC Voltage =>

120Vac

220-240Vac

Voltage range

90 to 128 Vac

184 to 256 Vac

Power source phase

Single

Nominal frequency

60Hz

50Hz

Frequency range

59 to 61 Hz

49 to 51 Hz

Typical steady-state current

16.4 A

8.6A

Maximum steady-state current

24A

12A

Typical power consumption

1722W

1766W

Maximum power consumption

3132W

3216W

NOTE: Maximum current and power values represent systems with two RA81 disk drives
installed.

2-20

MicroVAX Site Preparation

Table 2-5 (Cont.): H9642 System Specifications
Operating Acoustic Emission Levels
LNPE (B)

LPA (dB)

RA60 and RA81

7.6

NoRA drives

6.0

Recommended placement

Computer room

LNPE = Noise power emission level (A-weighted sound power level) measured in bels reference
1 picowatt.
LPA = Sound pressure measured in decibels at 1.0 m from the front edge of the unit and 1.5
m above the fioor.
Levels may be lower than those shown, depending on the kind and number of mass storage
devices in the system.
All data measured in accordance with ANSI S12.10-1985 (American National Standards
Institute) and ISOIDIS 7779 (International Standards Organization).

CAUTION:

•

For 120 Vac operation, Micro VAX systems in the H9642 cabinet must
use a NEMA (National Electrical Manufacturers Association) L5-30R
ac electrical receptacle rated at 30 A (U.S.).

•

For 240 Vac operation, most Micro VAX systems in the H9642 cabinet
do not use the NEMA connector. Those 240 Vac systems that do use
the NEMA connector operate on 60 Hz. Contact your DIGITAL sales
representative for information on any restrictions that may apply to 240
Vac, 60 Hz systems.

NOTE: To operate the H9642 cabinet at 240 Vac, obtain the appropriate
power cable for use in your country. See the appendix for order numbers.

Site Preparation Specifications

2-21

2.6 Specifications for the H9644 Cabinet
Use the information in this section to prepare your site for MicroVAX
systems in the H9644 cabinet.

2.6.1 Dimensions
Systems that use the H9644 cabinet are shipped in large containers secured
to wooden pallets by metal hold-down brackets. Other containers arriving
with your shipment may contain terminals, printers, software, and other
options. Plan to use about 3 m (10 ft) of floor space for removing each
cabinet from its pallet.

WARNING: Do not try to move or lift this equipment without a forklift.
The cabinet is mounted on four wheels.
An H9644 cabinet, fully loaded with four RA-series disk drives and a TK70
tape drive weighs 206.6 kg (455Ib). Plan your installation accordingly.

Figure 2-9 shows the dimensions of the shipping container of a MicroVAX
system in the H9644 cabinet.

2-22 MicroVAX Site Preparation

Figure 2-9: Dimensions of the Shipping Container of a MicroVAX
System in the H9644 Cabinet

IIIIIIITM

111'1

142.2 em
(56 in)

Site Preparation Specifications 2-23

Figure 2-10 shows the dimensions of an unpacked MicroVAX system in the
H9644 cabinet.
Figure 2-10:

Dimensions of a MlcroVAX System In the H9644 Cabinet

106.8 em

(41.6 in)

WEIGHT: 124.9 kg to 206.6 kg
(275 Ib to 455 Ib)

MlO-OO1356

If your system includes an auxiliary cabinet with an RA82 drive in the
bottom, leave a minimum of 1.2 m (4 ft) from the front of the cabinet to the
nearest stationary object so the disk drives can be extended. The drive is
approximately 86.5 cm (33.75 in) deep.
Leave approximately 1 m (3 ft) from the rear of the system to the nearest
stationary object so the rear door can be removed.
For cabinets containing a TU81E tape deck, leave enough room above the
cabinet to raise the cover of the tape deck.

2-24

MicroVAX Site Preparation

2.6.2 Heat, Humidity, Electrical Requirements, and Acoustics
The H9644 cabinet operates within or at the values listed in Table 2-6 for
temperature and humidity ranges, power requirements and noise levels.
Included are the electrical requirements for MicroVAX 3600 and VAXserver
3600 and 3900 systems that use one H9644 cabinet. The requirements for
a system with a second H9644 cabinet are included.
CAUTION:

For 120 Vac operation, MicroVAX systems in the H9644 cabinet must use a
NEMA L5-30R ac electrical receptacle rated at 30 A (U.S.). These systems
require a CSA 12-3 type power cable.
For 240 Vac operation, Micro VAX systems in the H9644 cabinet must use a
NEMA L6-15R ac electrical receptacle rated at 15 A (U.s.). Contact your
DIGITAL sales representative for information on any restrictions that may
apply to 240 Vac, 60 Hz systems.
1b operate a Micro VAX system in the H9644 cabinet at 240 Vac outside the
U.S., obtain the appropriate power cable for use in your country. See the
appendix for order numbers.

Site Preparation Specifications

2-25

Table 2-6: H9644 System Specifications
Heat Dissipation, Temperature, and Humidity Ranges
Condition

Measure

Heat dissipation

WithRAB2

4605 BTU/h

Heat dissipation

Without RAB2

240B BTU/h

Temperature

Operating:

15°C to 32°C
59°F to 90°F

Nonoperating:

-40°C to 66°C
-40°F to 151°F

Temperature rate of change

Operating:

11°C per hour maximum
19.BoF per hour maximum

Relative humidity

Operating:

20% to BO%
(noncondensing)

Nonoperating:

10% to 90%

Operating:

2440 m (BOOO ft)

Nonoperating:

4900 m (16,000 ft)

Maximum altitude

NOTE: Decrease the operating temperature range values by l.BoC per 1000 m above sea level
(PF per 1000 ft).

Electrical Requirements
NominalAC Voltage =>

100 Vac

120Vac

220-240Vac

Voltage range

Not used

90 to 12B Vac

1B4 to 256 Vac

Power source phase

Not used

Single

Nominal frequency

Not used

50 to 60 Hz

Frequency range

Not used

47 to 63 Hz

Maximum steady-state
current at nominal voltage

Not used

11.3 A

7.0A

Maximum steady-state current Not used
at minimum voltage

15A

B.2A

Maximum inrush current

Not used

75A

110 A

Typical power consumption

Not used

965W

1060W

2-26 MicroVAX Site Preparation

Table 2-6 (Cont.): H9644 System Specifications
Operating Acoustic Emission Levels
LNPE (B)

LPA (dB)

RA90 (60 Hz)

6.6

RA82-AA (60 Hz)

7.3

RA82-AD (50 Hz)

7.1

No RA drives

5.3

Recommended placement

Computer room

LNPE =Noise power emission level (A-weighted sound power level) measured in bels reference
1 picowatt.
LPA = Sound pressure measured in decibels at 1.0 m from the front edge of the unit and 1.5
m above the floor.
Levels may be lower than those shown, depending on the kind and number of mass storage
devices in the system.
All data measured in accordance with ANSI S12.10-1985 (American National Standards
Institute) and ISOIDIS 7779 (International Standards Organization).

Site Preparation Specifications

2-27

Appendix A

Power Cable Order Numbers
If you wish to operate the MicroVAX system at 240 Vac, refer to the table
appropriate to your system and order the power cable listed for 240 Vac
operation in your country. For more information on 240 Vac operation,
check with your DIGITAL sales representative.
Table A-llists the power cables used to operate a MicroVAX system at 240
Vac in the BA23 and BAl23 enclosures.
Table A-1 : Power Cables for the BA23 and BA123 Enclosures
Power Cable
Number

Country

Service

BN02A-2E

United Kingdom and Ireland

240 Vac

BN03A-2E

Austria, Belgium, Czechoslovakia, Finland,
France, Germany, Hungary, Netherlands,
Norway, Poland, Portugal, Spain, and Sweden

240Vac

BN04A-2E

Switzerland

240Vac

BN05A-2E

Australia and New Zealand

240Vac

BN06A-2E

Denmark

240 Vac

BN07A-2E

Italy

240 Vac

BN18lr-2E

Israel

240 Vac

BN18J-IK

U.S. and Japan

240 Vac

Table A-2lists the power cables used to operate a MicroVAX system at 240
Vac in the BA2l3 and a MicroVAX 3600 host with a B2l3A expander.

Power Cable Order Numbers A-1

Table A-2: Power Cables for the BA213 Enclosure and MicroVAX
3600 Host With a B213A Expander
Power Cable
Number

Country

Service

BN20B-2E

Japan

240 Vac

BN20C-2E

Australia and New Zealand

240 Vac

BN20D-2E

Austria, Belgium, Czechoslovakia, Finland,
France, Germany, Hungary, Netherlands,
Norway, Poland, Portugal, Spain, and Sweden

240 Vac

BN20E-2E

United Kingdom and Ireland

240 Vac

BN20F-2E

Switzerland

240 Vac

BN20H-2E

Denmark

240 Vac

BN20K-2E

India, South Africa

240 Vac

BN20L-2E

Israel

240 Vac

BN20J-2E

Italy

240 Vac

BN20A-2E

U.S.

240 Vac

Table A-3 lists the power cables used to operate a MicroVAX 3500/3800
system at 240 Vac and 220 Vac in the B213A expander and a B213F
expander.
Table A-3: Power Cables for MicroVAX 3500/3800 Systems With
B213A or B213F Expanders
Power Cable Number

Service

886A (Controlled Power Switch)

120 Vac

886B (Controlled Power Switch)

240 Vac

17-00365-06

240 Vac

BN20A-2E

115 Vac

NOTES: One BN20A-2E power cable is included with the MicroVAX 3500 or MicroVAX 3800
system shipment; a second is included with the B213A expander shipment.
The country-specific power cable for the 886B controlled power switch is included with the
B213A expander shipment, but must be specified in the customer order.

Table A-4lists the power cables used to operate MicroVAX systems at 240
Vac and 220 Vac in the H9642 and H9644 cabinets.

A-2 MicroVAX Site Preparation

Table A-4: Power Cables for the H9642 and H9644 Cabinets
Power Cable
Number

Country

Service

BN18B-4E

United Kingdom and Ireland

240Vac

BN18C-4E

Austria, Belgium, Finland, France,
Germany, Netherlands, Norway,
Portugal, Spain, Sweden, and
Switzerland

220Vac

BN18D-4E

Australia and New Zealand

240/230 Vac

BN18E-4E

Italy and Switzerland

220Vac

BN18F-4E

Israel

230 Vac

BN18H-4E

India

220 Vac

BN18P-4E

Denmark

240Vac

Table A-5lists the power cables used to operate the MicroVAX system at
240 Vac in the BA215 enclosure and for the R215F expander.

Table A-5: Power Cables for the BA215 Enclosure and for the
R215F Expander
Power Cable
Number

Country

Service

BN20N-2E

Japan, not available in U.S.

240Vac

BN19J-2E

Australia and New Zealand

240Vac

BN03B-2E

Austria, Belgium, Czechoslovakia, Finland,
France, Germany, Hungary, Netherlands,
Norway, Poland, Portugal, Spain, and Sweden

240Vac

BN19B-2E

United Kingdom and Ireland

240Vac

BN19F-2E

Switzerland

240Vac

BN19L-2E

Denmark

240Vac

BN19T-2E

India, South Africa

240Vac

BN19Y-2E

Israel

240 Vac

BN19N-2E

Italy

240 Vac

Table A-6lists the power cables used to operate the MicroVAX system at
240 Vac in the H9642 and H9644 cabinets and for the 886B controlled power
switch.

Power Cable Order Numbers A-3

Table A-6: Power Cables for the H9642 and H9644 Cabinets and
the 886B Controlled Power Switch
Power Cable
Number

Country

Service

BN18B-4E

United Kingdom and Ireland

240Vac

BN18C-4E

Austria, Belgium, Finland, France,
Germany, Netherlands, Norway,
Portugal, Spain, Sweden, and
Switzerland

220Vac

BN18D-4E

Australia and New Zealand

240/230Vac

BN18E-4E

Italy and Switzerland

220Vac

BN18F-4E

Israel

230Vac

BN18H-4E

India

220Vac

BN18P-4E

Denmark

Table A-7 lists the power cables used to operate MicroVAX 3500 and
MicroVAX 3600 systems at 110 Vacin the BA213 enclosure.

Table A-7: Power Cables for MicroVAX 35001 3600 Systems in the
BA213 Enclosure
Power Cable
Number

Country

Service

BN20A-2E

U.S.

115 Vac

BN18T-4E

U.S.

115 Vac

Table A-8lists the power cables used to operate MicroVAX 3300 systems
at 110 Vac in the BA215 enclosure.

Table A-8: Power Cables for the MicroVAX 3300 System in the
BA215 Enclosure
Power Cable
Number

Country

Service

BN20M-2E

U.S., Canada,Japan, and Mexico

120 Vac

A-4 MicroVAX Site Preparation