Motorola MVME956AC, MVME956UM2 User Manual

MVME956A C VME Chassis

User’s Manual

MVME956ACA/UM2

Notice

While reasonable efforts have been made to assure the accuracy of this document,
Motorola, Inc. assume s no liabi lity re sulting fr om any omi ssions i n this doc ument, or fr om
the use of the information obtained therein. Motorola reserves the right to revise this
document and to make ch ange s fr om ti me t o ti me in the content hereof without ob li ga ti on
of Motorola to notify any person of such revision or changes.

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It is possible that this pu blicati on ma y cont ain r eferenc e to, or i nformat ion a bout Mot oro la
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intends to announce such Motorola products, programming, or services in your country.

Restricted Rights Legend

If the documentation contained herein is supplied, directly or indirectly, to the U.S.
Government, the following notice shall apply unless otherwise agreed to in writing by
Motorola, Inc.

Use, duplication, or disclosure by the 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.

Motorola, Inc.

Computer Group

2900 South Diablo Way

Tempe, Arizona 85282

Preface

The MVME956AC VME Chassis User’s Manual describes the installation, configuration,
and operation of the Model MVME956 chassis. This chassis is a member of a family of
system enclosures that are configurable with a variety of card cage, storage drive, and AC
power supply options. The MVME956AC is a 12-slot model designed for rack-mount or
lab benchtop applications. The manual supplies general information on the chassis,
instructions for its preparation and installation, and support information.

This manual is intended for an yone who wants to design OEM systems, supply additional
capability to an e xisting system, or u se the equipment in a lab env ironment for ex perimental
purposes.

A basic knowledge of computers and digital logic is assumed.
Technical knowledge of energy and voltage hazards present in line connected electronic

equipment is assumed.
T o use this manua l, you may need to be f amiliar with the publ ications listed in the followi ng

Related Documentation section.
If any modifications are made to a MVME956AC chassis, the modifier assumes

responsibility for radio frequency interference issues. If any payload installed in a Model
MVME956AC system is not totally s upported by Motorola, the integrator assumes
responsib ility for radi o frequency interference.

Motorola® and the Motorola symbol are registered trademarks of Motorola, Inc.
All other products mentione d in t his document are trademarks or regi st er ed trademarks of

their respective holders.

© Copyright Motorola, Inc. 1997, 1998

All Rights Reserved

Printed in the United States of America

October 1998

Safety Summary

Safety Depends On You

The following general s afet y prec au tions m us t be ob served dur ing al l phas es of ope ration , ser vice , and r ep air of th is
equipment. Fail ure to compl y with these pr ecautions or with spec ific wa rnings els ewhere i n this manual violates s afety
standards of design, manufacture, and intended use of the equipment. Motorola, Inc. assumes no liability for the
customer’s failure to comply with these re qu irements.

The safety precautio ns listed bel ow repr esent warnin gs of certain dangers of whi ch Motorola is aware. You, as the user
of the product, shou ld fol low these war nings a nd all o ther safe ty preca ution s necess ary for the saf e operat ion of the
equipment in your operating environment.

Ground the Instrument.

To minimiz e shock hazard, the equipment chassi s and enclosure must be connected to an e le ct rical ground. Both AC
and DC versions of this equipment require a three-conductor power cable. A supplementary chassis ground is also
provided. AC power cables must b e plugged into an approved three-contact electri cal outlet. The power jack and
mating plug of the power cable must meet International Electrotechnical Commission (IEC) safety standards.

Do Not Operate in an Explosive Atmosphere.

Do not operate the equipment in the presence of flammable gases or fumes. Operation of any electrical e qui pment in
such an environment cons titutes a definite safety hazard.

Keep Away From Live Circuits.

Operating personnel must not remove equipment covers. Only Factory Authorized Service Personnel or other
qualified maintenan ce pers on nel may remove equi pm ent covers fo r int ernal su bass emb ly or com pon en t replac em ent
or any internal adjustment. Do not replace components with power cable connected. Under certain conditions,
dangerous voltages may exist even with t he power cable removed. To avoid injuries, always disco nnect power and
discharge circuit s before touching t hem.

Do Not Service or Adjust Alone.

Do not attempt internal service or adjustment unle ss another person capable of rendering first aid a nd resuscitation is
present.

Use Caution When Exposing or Handling CRTs.

Breakage of a Cathode-Ray Tube (CRT) causes a high-velocity scattering of glass fragments (implosion). T o prevent
CRT implosion, avoid rough handling or jarring of the equipment. CRTs should be handled only by qualified
maintenance per sonnel using approved safety mask and gloves.

Do Not Substitute Parts or Modify Equipment.

Because of the dan ger o f introd ucing ad ditio nal haz ards, d o not i nstall s ubstitu te part s or per form any u nauth orized
modification of the equipment. Contact your local Motorola representative for service and repair to ensure that safety
features are maintained.

Dangerous Procedure Warnings.

W arnings, such as the exampl e below, precede potentially dangerous proce dures throughout this manual. Instructions
contained in the warnin gs must be followed. You should also employ all other safety precau tions which you deem
necessary for the operation of the equ ipment in your oper at in g environment.

Dangerous voltages, capable of causing death, are present in

!

WARNING

this equipment. Use extreme caution when handling, testing,
and adjusting.

!

WARNING

Regulatory Notices

Changes or modifications not expressly approved by

Motorola Computer Group could void the user’s authority to
operate the equipment.

Use only shielded cables when connecting peripherals to
assure that appropri ate radio frequenc y emissions complia nce
is maintained.

FCC (U.S.)

Both Class A (commercial) and Class B (residential) digital
devices have the following Federal Communications
Commission (FCC) wording on the regulatory label:

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) this
device may not cause harmfu l interference, and ( 2) this device
must accept any interferen ce recei ved, inclu din g interf erenc e
that may cause undesired operation.

In addition, Class B equipment will also have an FCC ID
number displayed such as: FCC ID: LNT6ØØADT. To
determine the classification of your equipment, examine the
FCC labels, which are readily visible on the exterior of the
cabinets (usually on the back or bottom). If all labels have
Class B ratings, the system is Class B. Any Class A label
makes the system Class A.

For FCC Class A
NOTE: This equipment has been tested and found to comply

with the limits for a Class A dig ital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency
energy and if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operati on of th is equi pmen t in a res ident ial

area is likely to cause harmful interfer enc e, in which case the
user will be required to correct the interference at his own
expense.

Industry Canada

The classification of your system for Industry Canada can be
determined by examining the regulatory labels, which are
readily visible on the exterior of the cabinets (usually on the
back or bottom). If all labels have Class B ratings, the system
is Class B. Any Class A label makes the system Cla ss A. The
following wording in En glish or Fre nch or both, i ndicat es th e
Classification .

This Class A digital apparatus meets all requirements of the
Canadian Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe * respecte toutes les
exigences du Règlement sur le matériel brou il le ur du Canada.

CE Notice (European Community)

Marking a system with the “

“ symbol indicates

compliance of that Motorola system to the EMC and Low
Voltage directives of the European Community. A system
with the CE markin g meets or exce eds the following technical
standards:

EN 55022 “Limits and methods of measurement of radio
interference characteristics of information technology
equipment.”

EN 50082-1 “Electromagnetic compatibility - Generic
immunity standard Pa rt 1: Resi dential, commercial, and light
industry.”

IEC 801-2 “Electromagnetic compatibility for industrial
process measurement and control equipment Part 2:
Electrostatic discharge requirements.”

IEC 801-3 ”Electromagnetic compatibility for industrial
process measurement and control equipment Part 3:
Radiated electromagnetic field requirements.”

IEC 801-4 “Electromagnetic compatibility for industrial
process measurement and control equipment Part 4:
Electrical fast transient/burst requirements.”

EN 60950 “Safety of information technology equipment,
including electrical business equipment.”

In accordance with European Community directives, a
“Declaration of Conformity” has been made and is on file at
Motorola, Inc. – Computer Group, 27 Market Street,
Maidenhead, United Kingdom, SL6 8AE.

In addition to the above standards, this system has also met the
requirements of the following European standards:

EN 60555-2 “Disturbances in supply systems caused by
household appliances a nd similar electrica l equipment Part 2:
Harmonics.”

EN 60555-3 “Disturbances in supply systems caused by
household appliances a nd similar electrica l equipment Part 3:
Voltage fluctuations.”

Contents

CHAPTER 1 General Information

Overview....................................................................................................................1-1

Features......................................................................................................................1-1

General Description ...................................................................................................1-2

Chassis Description and Specifications..............................................................1-3

Power Supply Description and Specifications....................................................1-4

Power Supply Limit Considerations............................................................1-5

VME Bus Backplane Description and Specifications ........................................1-5

Safety and Regulatory Compliance............................................................................1-6

General Precautions ...................................................................................................1-7

Operating Environment..............................................................................................1-7

Chassis Cooling Considerations ................................................................................1-8

Hardware Preparation ................................................................................................1-9

Related Documentation............................................................................................1-10

CHAPTER 2 Chassis Mount Options

Overview....................................................................................................................2-1

Chassis Installation Instructions ................................................................................2-1

Benchtop Operation............................................................................................2-1

Install the Desktop Cover Kit.....................................................................2-2

Rack Mounting Option .......................................................................................2-4

CHAPTER 3 Operating Procedures

Overview....................................................................................................................3-1

Controls and Indicators..............................................................................................3-1

Power Control Procedure........................................ ...... ...... .......................................3-2

CHAPTER 4 12-Slot VMEbus Backplane

Overview....................................................................................................................4-1

Physical Description .......................................... ..... ...... .............................................4-1

Backplane Power........................................................................................................4-1

Backplane Bus Connectors.................................................................................4-2

ix

VME64x Bus Interface Signal Termination .......................................................4-2

Backplane Preparation...............................................................................................4-3

Install the Daisy-Chain Jumpers................................................................................4-5

Pin Assignments.................................................................................................4-6

Power Monitor Connection.........................................................................4-6

Live Insertion..............................................................................................4-7

CHAPTER 5 Removal and Replacement Procedures

Overview....................................................................................................................5-1

Following ESD and Safety Procedures......................................................................5-1

Power Supply................................................... ...... ..... .............................................. .5-2

Removal.............................. ..... ...... ............................................. ...... ..... .............5-2

Replacement................. ...... ............................................. ..... ..............................5-4

Disk and Tape Drive..................................................................................................5-6

Removal..............................................................................................................5-6

Replacement.......................................................................................................5-7

VME64x Bus Backplane...........................................................................................5-9

Removal..............................................................................................................5-9

Replacement.....................................................................................................5-11

Cooling Fan .............................................................................................................5-12

Removal............................................................................................................5-12

Optional Air Filter Kit.............................................................................................5-14

Replacement.....................................................................................................5-14

CHAPTER 6 Support Information

Introduction ...............................................................................................................6-1

Drawings/Wiring Diagram ........................................................................................6-1

Parts Lists ..................................................................................................................6-2

x

List of Figures

Figure 2-1. Cover Kit.................................................................................................2-3

Figure 4-1. 12-Slot Backplane Connectors and Headers Rear View .........................4-4

Figure 4-2. Backplane Daisy-Chain Jumper Wiring..................................................4-8

Figure 5-1. Power Supply Removal/Replacement.....................................................5-4

Figure 5-2. Disk/Tape Drive Removal.....................................................................5-7

Figure 5-3. Backplane Mounting (Card File Removed) ..........................................5-10

Figure 5-4. Cooling Fan Removal/Replacement..................................................5-13

Figure 6-1. MVME956AC Chassis Assembly, 1 of 2................................................6-5

Figure 6-2. MVME956AC Chassis Assembly, 2 of 2................................................6-6

Figure 6-3. MVME956AC Wiring Diagram..............................................................6-7

xi

List of Tables

Table 1-1. MVME956AC Chassis Specifications ....................................................1-4

Table 1-2. 12-Slot VME Bus Backplane Specifications ..........................................1-5

Table 1-3. Hardware Preparation Items .....................................................................1-9

Table 4-1. Power Monitor Connection .....................................................................4-6

Table 4-2. Live Insertion Connections................................................. ..... .................4-7

Table 6-1. MVME956AC Chassis Parts List ...........................................................6-2

Table 6-2. MVME956AC-AC Major Assemblies......................................................6-4

xiii

Overview

Features

1General Information

1

This manual provides general information, hardware preparation,
installation instructions, removal and replacement procedures for major
assemblies, operational information, parts lists, and diagrams for the
MVME956AC 12-slot chassis. Th rou ghout t he remainder of this manual,
this enclosure may be referred to as the MVME956AC, or simply as the
chassis.

The features of the MVME956AC chassis include:

❏ VME board injector features in front card cage
❏ Board slot keying
❏ Internationally approved 550 watt power factor corrected, wide

ranging power supply

❏ 12-slot, 64-bit, VME64X-compatible backplane with +5Vdc,

+12Vdc and -12Vdc power supplied

❏ Optional SCSI drive ki ts
❏ Electrostatic Discharge (ESD) hardening and Electromagnetic

Interference (EMI) shielding

❏ Forced air cooling for power supply, mass storage modules, and

VME modules

❏ Rear mounted card cage for 17 transition modules, connected by

cables to rear P2 connectors or P2 paddle boards

❏ Lab benchtop or rack-mount operation

Features of the 12-slot VME bus backplane include:

1-1

1

General Information

❏ Compatibility with standard VME (3-row) modules
❏ Compatibility with standard VME64x modules requiring only

+5Vdc, +12Vdc, and -12Vdc backplane power and no direct P2
transition module connections

❏ 12 VME slots (24 sockets, 160-pin IEC 1076-4_xxx, 2.54mm

receptacle connectors for VME modules)

❏ 64-bit address and data (P1 and P2)
❏ VME64x bus and VME64X bus termination
❏ 35 additional signal ground return
❏ 46 additional user-defined I/O pins
❏ Geographical addressing
❏ +5Vdc, +12Vdc, and -12Vdc power supplied
❏ +3.3Vdc power is not supplied

General Description

The MVME956AC chassis is designed for OEMs and other technical
professionals who wish to integrate individual VME module board-level
products into a complete, compact, self-contained microcomputer system,
including disk and/or tape dri ve units. This packaging des ign helps to best
meet your specific performance and installation requirements. Various
options to permit the convenient assembly of systems for custom
installation and/or application are possible.

The major asse m blies of the MVME956AC are:

❏ Chassis with card ca ge, power supply, backplane , power switch, and

cooling fans. Operates on 115/220 Vac input power.

❏ AC power supply, 550W, 115/ 230 Vac input (+5 Vdc , +12 Vdc, and

-12 Vdc). Includes cooling fan and housing with cables.

1-2 Computer Group Literature Center Web Site

❏ VME module backplane. Contains 12 connectors for P1 and P2 of

VME bus.

The basic chassis, power supply, and backplane are described in this
manual. The optional disk driv es, tape drives, and controller s are described
in their respective manuals or reference sheets. Refe r to the Related

Documentation on page 1-10 for additional information.

Chassis Description and Specifications

The MVME956AC chassis is designed for industry- st anda rd 3-row VME
modules and VME64X modules not requir ing +3.3 Vdc backpl ane power.
The chassis accommodates five additional peripheral drive and houses a
VME module card cage with 12 VME bus slots. The front panel opening
accommodates the five 5-1/4-inch, half-height SCSI peripheral devices.
The control for the chassis is an ON/OFF power switch.When the switch
is in the OFF position, power to the modules is removed but the primary
side of the power supply remains energized. Power is supplied by an
internal 550 watt wide- ranging power suppl y, which is mounte d vertically
toward the rear of the chas sis. There is provision for 17 r ear panel-mounted
80 mm interface modules.

General Description

1

Three DC-powered fans provide forced air cooling for the power supply,
mass storage enclosure , and VME modules. Convection cooling i s used for
the rear-mounted modules .

The rear of the chassis supp orts standard doubl e-high Eurocard panels and
80 mm modules such as MVME7XX series modules. Table 1-1 lists the
specifications for the MVME956AC chas sis an d power su pply . Table 1- 3
lists the specifications for the 12-slot backplane. Specifications for the
SCSI drives and VME modules used in the MVME956AC chassis are
given in their respective manuals or reference sheets. Refer to Related

Documentation on page 1-10 for information.

http://www.mcg.mot.com/literature 1-3

1

General Information

Table 1-1. MVME956AC Chassis Specifications

Characteristics Specifications

Dimensions

Width

(with front flange) 19.00 inches (482.6 mm)

(without front flange) 17.20 inches (436.8 mm)
Depth 19.02 inches (483.1 mm)
Height 12.22 inches (310.4 mm)
Weight 32 pounds (15 kg)

Input voltage 90-132/180-264 Vac
Input frequ ency 47 to 63 Hz
Input power 90-132 Vac or 180-264 Vac
Output voltages +5 Vdc @ 80A

+12 Vdc @ 10A (16A peak)

-12 Vdc @ 10A

Output power 550 Watts (max.)
Temperature (NOTE)

Operating 0 degrees C to 40 degrees C
Storage -40 degrees C to +60 degrees C

Relative humidity (NOTE) 20% to 80% (noncondensing)

Note Temperature and humidity limits are primarily determined

by the type of ta pe a nd d is k medi a t hat you expect to install .

Power Supply Description and Specifications

DC power is supplied by a 550-watt wide-ranging power supply. It is
mounted in a fan-cooled air duct assembly and installed in the rear of the
chassis behind the disk drives. The cooling fan runs constantly when the
power supply is plugged in.

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General Description

Power Supply Limit Considerations

The MVME956AC chassis is suppl ied with a 550-watt, 3-outpu t switching
power supply. The power s upply i s capab le of h igher output curre nts tha n
the interconnection to the backplane. As designed, the enclosure +5 Vdc
output is rated at 6 0 amperes, the + 12 Vdc output at 10 a mperes (16 peak) ,
and the -12 Vdc output at 10 amperes.

The current rating for each individual output must not be

!

Caution

exceeded, and the total power supply output power must not
exceed 550 watts. When calculating the 5-volt current,
remember to include the backplane termination resistors.

The system integr ator must ensure t hat the inst alled peripheral
devices and VME module set do n ot exceed the p ower suppl y
rating.

VME Bus Backplane Description and Specifications

1

The MVME956AC chassis contains one 12-slot, full 64-bit VME bus
backplane mounted to the l eft of the periphe ral device area . The backplane
can accommodate up to 12 VME modules. It uses all signal and power
lines for VME bus connectors P1 and P2.

Table 1-2. 12-Slot VME Bus Backplane Specifications

Characteristics Specifications
Power consumption

(without device
modules)

Connectors

Device sockets

http://www.mcg.mot.com/literature 1-5

5W (1.0 A max @ +5V), required by active
termination

24 sockets: 160-pin IEC1076-4_xxx 2.54mm
connectors
Socket spacing (center-to-center): 0.8 inch

1

General Information

For more detailed information on the VME bus backplane, refer to the
VME Extensions Standard, VITA 1.1-199X, which can be found at
http://www.vita.com.

Safety and Regulatory Compliance

All systems integrated by Motorola meet the standards claimed for those
systems with regard to electromagnetic interference (EMI), radio
frequency interfe rence (RFI), an d overall safet y. It is possi ble, however, to
install circuit boards and drives in the MVME956AC enclosure that
produce a system not in compliance with the applicable emission limits.

Note It is the integrator’s responsibility to design a payload that

meets the desired standards.

When Motorola integrates a payload into the MVME956AC enclosure, it
is often necessary to make changes to the payload in order for the system
to pass RFI standards. The fol lowi ng is a list of conditions that in general
must be met in order to achieve compliance with RFI standards:

❏ At a minimum, the chassis must be connected to earth ground

through the safety ground wire in t he power cord to meet safety a nd
other requirements.

❏ All external I/O cables should be high-quality shielded types with

metal shell connectors.

❏ Connectors on VME modules should be metal shell types,

connected to earth ground. This is accomplished through the
conductive panels in contact with the chassis rails.

❏ All VME modules should have co nduc ti ve p anel s t o ensure a good

RF ground with the conductive chassis rails.

❏ Blank panels with EMI gaskets should be installed over all unused

chassis slots to ensure there are no RF leaks in the chassis.

1-6 Computer Group Literature Center Web Site