IBM System/38 User manual

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GA21-9293-6
File No. S38-15
IBM System/3S
IBM System/38
Installation Manual-
Physical Planning

Seventh Edition (March 1983)
This is a major revision of, and makes obsolete, GA21-9293-5 and Technical
Newsletter GN21-3007.
Changes
are periodically made to the information herein; these changes will be
reported in technical newsletters or in new editions of this publication.
See About This Manual for a summary of major changes in this edition.
Use this publication only
for the purposes stated in About This Manual.
It is possible that this material might contain reference to, or information about,
IBM products (machines and programs), programming,
or services that are not
announced
in your country. Such references or information must not be construed
to mean that IBM intends to announce such IBM products, programming, or
services in your country.
Publications are not stocked at the address below. Requests
for copies of IBM
publications and for technical information about the system should
be made to
your IBM representative or to the branch office serving your locality.
This manual could contain technical inaccuracies or typographical errors. Use the
Reader's Comment Form at the back
of this publication to make comments about
this publication.
If the form has been emoved, address your comments to
IBM Corporation, Information Development, Department 245, Rochester,
.Minnesota 55901. IBM may use and distribute any
of the information you supply
in any way
it believes appropriate without incurring any obligation whatever. You
may,
of course, continue to use the information you supply.
©Copyright International Business Machines Corporation 1978, 1979, 1980, 1981,
1982, 1983
J

FEDERAL COMMUNICATIONS COMMISSION REQUIREMENTS
Electromagnetic Interference
United States Federal Communications Commission (FCC) rules require IBM to
publish the following information, which applies to each unit (including modems and
terminals that hereafter will be called equipment) described in this manual.
WARNING: This equipment generates, uses, and can radiate radio frequency energy,
and if not installed and used in accordance with the instruction manuals, may cause
interference to radio communications. It has been tested and found to comply with the
limits for a Class Acomputing device pursuant to Subpart J of Part 15 of FCC rules,
which are designed
to provide reasonable protection against such interference when
operated in a commercial environment. Operation of this equipment in a residential
area is likely to cause interference, in which case the user at his own expense will be
required to take whatever measures may be required to correct the interference.
Instructions Pursuant to FCC Part 15, Subpart J
1. This equipment should not be installed less than 30 meters (98.5 ft.) from radio
or television receivers
or their receiving antennas.
2. This equipment should not receive its power from branch circuits that also
power radio or television receivers.
If this equipment cannot comply with the above distance limitation:
1. Turn the equipment and the receiver on. If no interference is apparent, no
further action need be taken.
2. If interference occurs, reorient or relocate the equipment, the receiver, or both.
3. If interference still occurs, contact your IBM representative.
iii

Federal Communications Regulations
FCC
(Part 68) Regulations Governing the Operation
and Maintenance of IBM 2400 bps and 4800 bps
Integrated Modems (Sales Features 5641 and 5741)
over the Public Switched Network in the US
Data protective circuitry in the IBM 2400 bps and the
IBM 4800 bps Integrated Modems is registered with the
US Federal Communications Commission
(FCC). The
FCC requires that IBM publish the following information
about the operation and maintenance
of all devices
containing registered circuitry. The
FCC also requires
that all persons who use and maintain devices
containing registered circuitry in the US comply
with the
following
FCC rules:
1. To ensure compliance
with the regulations
regarding the repair
of registered circuitry, field
repair is limited to replacement of field-replaceable
units only.· Field replacement
of these units will be
performed by authorized personnel only. No other
field repair
or adjustment to the registered circuitry
is permitted.
2.
If a problem occurs that is determined to be in
registered circuitry
or to be caused by registered
circuitry, the device containing
that circuitry must
be disconnected from the public switched network
immediately by removing its
System/38 cable
from its network data jack.
If the telephone company detects a problem on
the network that has been caused by System/38,
the telephone company has the right to temporarily
discontinue service
to the device containing that
circuitry. Service may be discontinued immediately
and remain discontinued until the problem no
longer exists.
3. Connecting a device containing registered
protective circuitry
to a party line or to a line
serving a COin-operated telephone is prohibited.
iv
4. The telephone company may make changes in its
communications facilities, equipment, operations,
or procedures, where such action is reasonably
required in the operation of its business and is not
inconsistent with the rules and regulations
of the
FCC. If these changes can be reasonably expected
to cause your equipment to be incompatible with
the telephone company's communications facilities,
or to require modification or alteration of your
equipment, you will be given adequate advance
notice, in writing,
to allow you an opportunity to
react in a manner that allows you to maintain
uninterrupted service.
5. Before a device containing registered circuitry is
initially connected to the publiC.switched network,
you must contact the telephone company and
supply the following information:
6.
a. The line to which the device is being connected.
b. The
FCC registration number and ringer
equivalence number
of the device.
c. The identification of the product containing the
registered circuitry. In the case
of the
System/38, you will identify the product
as the
IBM 5381.
d. The type
of communications line jack needed.
See
Cable Instal/ation Responsibility in this manual
for information about the FCC registration number,
ringer equivalence number, and type of jack to be
reported
for Sales Feature 5641 or 5741.
You also must inform the telephone company
of
all registration numbers associated with other
devices that you may have connected on this
circuit.
You must notify the telephone company upon final
disconnection
of a device containing registered
circuitry, identifying the line from which the device
was disconnected.

ABOUT THIS MANUAL •• ••••••••••••• vII
Purpose of This Manual . .
Organization
of This Manual vii
vii
CHAPTER 1. SCHEDULING CONSIDERATIONS. •• 1·1
Planning in Advance • . • • . . 1-1
Making a Schedule • . • . . . 1-1
Six Months before Delivery . 1-1
Four Months before Delivery . 1-2
One Week before Delivery . . 1-2
Site-Preparation Scheduling Work Sheet 1-3
CHAPTER 2. PHYSICAL PLANNING
CONSIDERATIONS
Space Planning
Floor Plans
Servicing .
Reducing Unit Dimensions •
Other Planning . ~ . .
Fire Protection . . .
Ughtning Protection .
Room Acoustics
Relocation . • . . •
CHAPTER 3. PHYSICAL PLANNING
REQUIREMENTS
Space Planning . . • . •
Device Drawings • • .
Metric Measurements •
English Measurements
Service Planning
Plan Views .....
Floor Plan Work Sheet
2·1
2-1
2-1
2-2
2-2
2-2
2-2
2-2
2-3
2-3
• 3-1
3-1
3-2
3-3
3-4
3-6
3-6
3-9
CHAPTER 4. CABLE REQUIREMENTS ••••• . . . 4-1
Cable Information . . . . . . . . 4-1
Cable Length. . . . . . . • ~ 4-1
Cable Installation Responsibility 4-2
Cable Groups . . . . . . 4-4
Cable Schematic • . . 4-4
Cable Summary Chart • 4-6
CHAPTER 5. ELECTRICAL REQUIREMENTS • &-1
General Power Information 5-1
Power Specifications
5- 2
Power Distribution • .
5-4
Grounding . . . . . . 5-4
Emergency Power-Off Switch 5-4
Phase Rotation • • . . . 5-4
Additional Power Outlets 5-4
Ughtning Protection. • . 5-5
Electrical Specifications 5-5
Electrical Wiring . . . • 5-5
Electrical Spacifications Chart 5-6
Contents
CHAPTER 6. ENVIRONMENTAL REQUIREMENTS
Environmental Conditions. . . .
Air Pollution . . . . . . . .
Air Temparature
and Humidity
Environmental Specifications . .
System
Heat. . . . . . • .
Environmental Summary Chart
APPENDIX A. MILLIMETER·TOoINCH
CONVERSIONS • • • • • • • • • • •
.
6-1
6-1
6-1
6-1
6-4
6-4
6-5
A·1
Contents v

J
vi

PURPOSE OF THIS MANUAL
This manual is task-oriented. Information is presented
in separate chapters for: the space planner, the
electrical workers, and the heating and air-conditioning
workers. This information, and any specific information
for each task, should be given to the appropriate
workers.
This manual has been updated
to include information
about the 3430 Model A
and 3430 Model B magnetic
tape units.
ORGANIZATION OF
THIS MANUAL
This manual includes the following information:
• Suggested scheduling
of site preparation
• Space requirements
• Recommendations about fire protection and lightning
protection
• Cabling information
• Electrical requirements
• Humidity and temperature requirements
IBM recommends that the organization planning
to
install the system assign someone to coordinate all site
preparation planning. This individual will ensure that the
necessary site modifications are completed before the
system arrives
for installation. This manual contains
data
and recommendations that will help meet these
requirements.
IBM assumes that any alterations or additions
to the site
(such
as the addition of some electrical wiring) will be
performed by qualified technicians and professionals
designated by the coordinator.
Page of GA21-9293-6
Issued 8 March 1983
By TNL: GN21-0370
About This Manual
Installation and cabling information about IBM 5250
work stations that can be attached to this system is
available in the IBM 5250 Information Display System
Planning
and Site Preparation Guide, GA21-9337,
available through the IBM branch office serving your
locality. Installation planning information for external
modems
is supplied by the modem manufacturer. If an
IBM external modem is used, its installation manual is
also available from your IBM branch office. Information
about the
UPS (un interruptible power supply) system
and its cabling
is available in the IBM System/38
Uninterruptible Power Supply Planning Guide,
GA21-9421. IBM recommends the use of these
manuals during site planning and preparation.
Although this manual is concerned primarily with the
installation
of a data processing system, planners must
also consider the space, electrical, and environmental
requirements
of other machines and equipment in the
data processing
area.
In addition to physical planning, consider the following:
• Obtaining the supplies needed
for operating the
system
• Writing programs or converting programs from other
systems
• Training
for programmers and operators
Your IBM sales representative
can answer any questions
about the programs, manuals, and supplies needed.
Classes,
as well as demonstrations, can be scheduled
for programmers and operators.
Note: This manual follows the convention that he
means he or she.
About This Manual vii

.'
viii

PLANNING IN ADVANCE
Because any data processing system occupies space,
uses power, and is surrounded by air that must not
exceed temperature
and humidity limits, you should
determine whether your present facilities must
be
modified to accommodate the system.
If modifications are needed, advance planning lets you
complete the work before the system arrives. Then you
can install your system quickly, easily, and with minimal
disruption
of normal business routines.
First you should determine where you
are going to
install the system. After you have selected a site for
your data processing
area, you must consider your
system installation.
The IBM System/38 Physical Planning Template,
GX21-9294, is a clear plastic template, drawn to a scale
of 1:48, that can help you make a floor plan of your
data processing
area, showing the arrangement of all
the data processing equipment, desks, tables, files,
and
so on to be used in the area. If you are using a floor
plan drawn
to a scale of 1:50, the template is slightly
larger
(4 %) than your application. Check any close fit
with the actual dimensions shown in Chapter 3. With
this floor plan you
can determine the following:
• Electrical requirements, including the need for new
circuits
and the location of power receptacles and
control panels. Show these locations on your plan
view.
Routing cables that interconnect various data
processing units
and lengths of these cables. Show
the cable routing on your plan view.
Chapter 1. Scheduling Considerations
• The possible need for special humidity and
temperature control devices. List what is needed and
show where it should be located.
• Total space requirements, including storage
space for
diskettes, forms, cards,
and tapes. Consider special
humidity
and temperature considerations for diskette,
card, paper,
and tape storage if these will not be
stored in the main data processing area. Record any
special requirements.
MAKING A SCHEDULE
To be sure that the data processing area is ready when
the system
is delivered, make a site preparation
schedule.
Because each installation differs, it is not
possible
to provide a precise schedule in this
publication. However, you
can modify the following
schedule
to suit your installation needs. The
Site-Preparation Scheduling Work Sheet in this chapter
can be used to plan task schedules and to record
progress.
Six Months before Delivery
• Request a visit by the IBM installation support
representative
to discuss all phases of the proposed
installation.
• Review the order.
• Prepare a preliminary layout
of the proposed data
processing area.
Scheduling Considerations 1-1

Four Months before Delivery
• Complete your floor plan.
• Determine cable lengths
(see Cable Information in
Chapter 4) and provide this information to your IBM
representative.
•
If building alterations (such as painting, plastering, or
expanding electric service or communications
facilities)
are needed:
Complete all necessary drawings
and specifications
for the alterations.
Schedule getting the areas ready so that
alterations
can be made.
Schedule alterations so that they
are complete one
week before machine delivery.
One Week before Delivery
• All planned modifications for wiring, temperature
control,
and humidity control should be completed
and tested.
• All work station cabling should
be installed and
tested.
• Communications facilities should
be installed and
tested.
• All building alterations should
be completed.
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1-4

SPACE PLANNING
To prepare for the installation
of IBM data processing
equipment, determine where the machines will
be
placed, and make certain that you can move the
equipment from the truck into the selected data
processing
area. The following factors may help you
determine the location
of the data processing area and
the best way
to route system equipment:
• The
size of the doorways and halls through which
each unit must be moved. (See Reducing Unit
Dimensions.)
• Elevator capacities and loading facilities that will be
used for receiving and moving the various units.
• The amount
of site modification required to use each
proposed data processing area.
• The amount of electromagnetic interference in each
proposed data processing area. Avoid putting a
system
in an area where high electromagnetic
interference
can be radiated or conducted. These
areas may exist near a radio-frequency source, such
as radio transmitting towers (AM, FM, TV, and
two-way radio), radar (FAA and military), certain
industrial machines
(RF induction heaters, RF arc
welders, and insulation testers), time clocks, certain
electrical heating systems, and high-energy power
lines. Should any
of these conditions exist, reassess
your plans
to see if any special installation or product
considerations
are needed for normal system
operation and maintenance. Your IBM installation
support representative
can help you.
Floor Plans
Consider these factors
as you make your floor plans:
• Space for people
to work efficiently.
• Space for the system unit, printers, work stations,
desks, files,
and all miscellaneous equipment.
• Space for servicing the equipment.
Chapter 2. Physical Planning Considerations
• Security areas and methods.
• Storage space for supplies
and documentation.
• Aisle space.
• Cable length and cable routing.
• Cable protection,
if required. Proper planning will
ensure that traffic cannot damage a cable
and that
workers cannot trip on cables.
If cables must cross a
line
of traffic, you may want to build a ramp for
traffic across the cables, run the cables under a
raised floor, or eliminate the risk
in some other way.
(Local codes may dictate the method used.)
If you
decide to use a raised floor, it can be made of steel,
aluminum, or fire-resistant wood
(see Air
Temperature and Humidity Considerations in
Chapter 6). A free-access raised floor is best. Build
the tiiSed floor high enough to accommodate cables,
power distribution, and so
on. A floor height
between 100 and 300 mm
(4 and 12 in.) usually is
acceptable.
• Space
for future expansion.
• Location
of electrical outlets, communications lines,
and work station cables.
• Maximum cable lengths.
(The cable Summary Chart
in Chapter 4 specifies maximum cable lengths, which
dictate the maximum distances between the system
unit and its cable-connected units.)
• The weights
of system components and other
equipment
in the data processing area.
Weights of the various system components should
not exceed the floor-loading capacity
of most
buildings; however,
if it seems that the floor-loading
capacity
of an area might be exceeded, consult a
structural engineer.
Your IBM installation support representative
can provide
guidance about service clearances, operating
convenience service access, data security,
and safety.
Physical Planning Considerations 2-1

Servicing
• When you make floor plans
of the data processing area,
provide space for storing system manuals and
maintenance documentation and allow space for
servicing the equipment. The service clearance shown
in
the Metric Measurements and English Measurements
tables
are minimum clearances needed to service the
equipment. For example, manuals
can be placed in a
customer engineer's book box,
and documentation can
be stored within the service area designated for the
system. The book box is about 430'mm
(17 in.) wide,
600 mm (24 in.) long, and 500 mm (20 in.) high.
Reducing
Unit Dimensions
To move some units into your data processing area, you
may
need to reduce the dimensions of the· units. All
units
in the system can be reduced to the horizontal
dimensions
of 750 mm x 1520 mm (29-1 /2 in. x 60 in.)
or smaller by removing unit covers, upending the unit, or
both.
To prevent damage, always use
an upending kit when
upending the unit. You
can get this kit by ordering
SF9845 from IBM at least 30 days before you need
to
upend the unit. The kit consists of four casters, which
are to be mounted on the left end of the unit after the
unit cover is removed.
SF9845 is not available
in E/ME/A countries. See
unpacking instructions part IE5448 and part IE5449.
2-2
OTHER PLANNING
Fire Protection
Provide portable carbon dioxide extinguishers
in case of
electrical fires and portable pressurized water
extinguishers
in case of fires involving ordinary
combustible material
such as paper.
Fire protection around the outside of the data
processing room
(in adjoining rooms, the floor space
above, and the floor space below) is
as important to the
safety
of the system as fire protection within the room
itself.
If local building codes or insurance regulations require
sprinkler systems, consider using a preaction system
that helps prevent accidental
release of water.
Lightning Protection
Communications
Lines
Lightning striking near a communications line can place
a heavy power surge
on the line. If this surge is allowed
to reach the internal circuits for that line, these circuits
can be destroyed.
If you plan to install a communications attachment in an
area with a high incidence of severe electrical storms,
you should take the following precautions:
• Check with the communications line installer
to
ensure that all switched network lines have been
equipped with lightning protection.
• Consult your IBM installation support representative
about the
need for installing an undercover lightning
arrester (RPQ 840210) for
each nonswitched line with
an undercover modem.
Work Station Cables
For information about lightning protection on work
station cables, refer
to your IBM 5250 Information
Display System Planning and Site Preparation
Guide,
GA21-9337.

Room Acoustics
You can reduce noise by adapting your ceiling. A
dropped porous ceiling works best.
If there are
overhead ducts, prevent these ducts from transmitting
sound from another
area into your data processing area.
In large rooms, you can reduce noise by applying
acoustical material
to the floor. If carpeting is used as a
floor covering
in the data processing area, it should be
an antistatic type or should be treated to prevent or
minimize static build-up.
Relocation
Before you move any system unit, consult your IBM
customer engineer.
He will advise you of any special
precautions that must be taken
to protect your data file
or the system units.
Physical Planning Considerations 2-3

2-4

SPACE PLANNING
The arrangement of the units (devices, tables, files) in
your data processing area, and the path you will use
to
move the System/38 devices from the entrance of your
building into your data proce'ssing
area should be
determined during planning.
This section includes the following:
• General information about space planning.
• Drawings of the System/38 devices available for your
system. These pictures will help you visualize
what
the devices look like, as you plan their arrangement in
the data processing area.
• Summaries
of device characteristics in both English
and Metric measurements. These charts include
space
to write in the dimensions, weights, and
clearances
for all the other significant items to be
placed in the room. You will need
to know these
characteristics
as you make the plan view for the
arrangement
of equipment in the room. The charts
will also show power cord lengths
for those items
that are not powered from other system devices. You
will need this power cord length
to help you
determine where
to place the device or the power
receptacle
for the device. Device weights help you
determine floor loading and elevator use.
Chapter 3. Physical Planning Requirements
• At least one plan view for each System/38 device
you might install. These are drawn
to a scale of 1:48.
You can make transparent copies
of these plan views
or cut them out of the pages. The plan views can
then be moved around on a scale drawing
of your
data processing area (made using a scale
of either
1
14 in. = 1 ft. or 1 mm = 50 mm), to determine your
system configuration.
Note: When determining the system configuration,
consider the maximum cable distance between
devices,
as shown in Chapter 4, and also the
locations
of your power outlets. You may need to
install new outlets to power your system devices.
• An
8-112 in. x 11 in. grid sheet with the grids
marked each 1
14 in. This grid sheet can be used to
make your floor plan
of the data processing area, and
to arrange the devices and associated items in the
room. You might want
to use a copy of this grid
sheet
to make plan views of the non-IBM items that
will also be in the area. (See the Floor Plan Work
Sheet in this chapter.)
When you allow space for service clearances, you can
overlap the service areas outlined by the dashed lines on
the plan views. However, always allow the largest
clearance required
to open machine covers in the
overlapped areas. For example,
if a 3370 Model A 11 is
placed at the right of a 5424, the two machines must be
separated by at least 32 in. because the 3370 needs
32 in.
of clearance at its left for servicing the machine,
while the 5424 needs only 18 in.
of clearance at its
right.
Your final
floor plan should include clearly marked
locations
of electrical outlets that must be installed. The
identification number
of each receptacle or connector
should be indicated on the drawing.
When the floor plan view is complete, make copies and
distribute them to the workers
who will do the wiring,
heating, air conditioning, and moving.
Physical Planning Requirements 3-1

Page of GA21-9293-6
Issued 8 March 1983
By TNL: GN21-0370
Device Drawings
T
1000
""1
1_ 970 _I
r-- (381/4)-"1
750
(291/2)
~
3262 Printer
o
3370 Direct Access Storage
3411 Magnetic Tape
Unit and Control
3410 Magnetic Tape Unit
3-2
5381 System Unit with
Expansion Enclosure
3430A Magnetic Tape Unit and Control
3430B Magnetic Tape Unit
L 970
1--(38)---1
T
1000
o ["21
5211 Printer
5381 System
Unit
750
~(291/2)
1
1260
1''''
1260
I"
;:r-
750
(29 1/2)
5424 Multi-Function Card Unit
J

Metric Measurements
Power Dimensions Cmm)
Service Clearance Cmm)
Cord
Length
Notes
in
Weight Csee
Type Model Description Meters Ckg) Width
Depth Height Front Rear
Right
Lett
below)
3203 5 Printer 4.3 485 2240 510 1170 915 1070 610 610
3262
B1 Printer 4.1
245 970 750 1000 760 760 760 760
3370 A11 Direct 4.3 260 777 813 1000 760 760 813 813 3
B11
Access 170 533 813 1000 760 760 813 000 4
Storage
3410
1.2.3
Magnetic 80 790 685 990 915 150
000 000 1
Tape Unit
3411
1.2.3
Magnetic 4.3 150 790 685 990 915 150 000 000
Tape Unit
and Control
5211 2 Printer 4.3 240 970 750 1000 760 760 760 760
5381
-System Unit 2.4 600 1775 750 1260 1150 900 500 000
without
Expansion
Enclosure
System Unit 2.4 1000 2525 1640 1260 1150 150 500 900
2,5
with
Expansion
Enclosure
5424 A1.
A2.
Multi-
2 260 865 750 1400 760 760
460 000
K1. K2. Function
K3
Card Unit
.-
Notes:
1. Up
to three tape units can be attached to. and powered from. the control unit.
2. See the plan view for 5381 System Unit with Expansion Enclosure.
3. The right service clearence data does not apply if a Model B11 is attached.
4. The right seNice clearance applies only
to the rightmost Model B11. effective width is 510 mm when installed with a
Model A11.
5. Expansion enclosure is 1000 mm high.
Note: Write the significant measurements of other items that will affect the layout or wiring of the data processing
area in the blank spaces on the chart above. These items must be considered when you are determining the final
system arrangement.
Physical Planning Requirements 3-3