MVME956AC VME Chassis
User’s Manual
MVME956ACA/UM2
Notice
While reasonable efforts have been made to assure the accuracy of this document,
Motorola, Inc. assumes no liability resulting from any omissions in this document, or from
the use of the information obtained therein. Motorola reserves the right to revise this
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It is possible that this publication may contain reference to, or information about Motorola
products (machines and programs), programming, or services that are not announced in
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Government, the following notice shall apply unless otherwise agreed to in writing by
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Use, duplication, or disclosure by the Government is subject to restrictions as set forth in
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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 anyone who wants to design OEM systems, supply additional
capability to an existing system, or use the equipment in a lab environment for experimental
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.
To use this manual, you may need to be familiar with the publications listed in the following
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 supported by Motorola, the integrator assumes
responsibility for radio frequency interference.
Motorola® and the Motorola symbol are registered trademarks of Motorola, Inc.
All other products mentioned in this document are trademarks or registered 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 safety precautions must be observed during all phases of operation, service, and repair of this
equipment. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety
standards of design, manufacture, and intended use of the equipment. Motorola, Inc. assumes no liability for the
customer’s failure to comply with these requirements.
The safety precautions listed below represent warnings of certain dangers of which Motorola is aware. You, as the user
of the product, should follow these warnings and all other safety precautions necessary for the safe operation of the
equipment in your operating environment.
Ground the Instrument.
To minimize shock hazard, the equipment chassis and enclosure must be connected to an electrical 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 be plugged into an approved three-contact electrical 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 equipment in
such an environment constitutes a definite safety hazard.
Keep Away From Live Circuits.
Operating personnel must not remove equipment covers. Only Factory Authorized Service Personnel or other
qualified maintenance personnel may remove equipment covers for internal subassembly or component replacement
or any internal adjustment. Do not replace components with power cable connected. Under certain conditions,
dangerous voltages may exist even with the power cable removed. To avoid injuries, always disconnect power and
discharge circuits before touching them.
Do Not Service or Adjust Alone.
Do not attempt internal service or adjustment unless another person capable of rendering first aid and 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). To prevent
CRT implosion, avoid rough handling or jarring of the equipment. CRTs should be handled only by qualified
maintenance personnel using approved safety mask and gloves.
Do Not Substitute Parts or Modify Equipment.
Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized
modification of the equipment. Contact your local Motorola representative for service and repair to ensure that safety
features are maintained.
Dangerous Procedure Warnings.
Warnings, such as the example below, precede potentially dangerous procedures throughout this manual. Instructions
contained in the warnings must be followed. You should also employ all other safety precautions which you deem
necessary for the operation of the equipment in your operating environment.
!
WARNING
Dangerous voltages, capable of causing death, are present in
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 appropriate radio frequency emissions compliance
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 harmful interference, and (2) this device
must accept any interference received, including interference
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 digital 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. Operation of this equipment in a residential
area is likely to cause harmful interference, 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 Class A. The
following wording in English or French or both, indicates the
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 brouilleur du Canada.
CE Notice (European Community)
“ symbol indicates
Marking a system with the “
compliance of that Motorola system to the EMC and Low
Voltage directives of the European Community. A system
with the CE marking meets or exceeds 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 Part 1: Residential, 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 and similar electrical equipment Part 2:
Harmonics.”
EN 60555-3 “Disturbances in supply systems caused by
household appliances and similar electrical 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
1General Information
1
Overview
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. Throughout the remainder of this manual,
this enclosure may be referred to as the MVME956AC, or simply as the
chassis.
Features
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 kits
❏
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 drive units. This packaging design 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 assemblies of the MVME956AC are:
1-2
❏
Chassis with card cage, 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.
Computer Group Literature Center Web Site
General Description
❏
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 drives, tape drives, and controllers are described
in their respective manuals or reference sheets. Refer to the Related
Documentation on page 1-10 for additional information.
Chassis Description and Specifications
The MVME956AC chassis is designed for industry-standard 3-row VME
modules and VME64X modules not requiring +3.3Vdc backplane 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 supply, which is mounted vertically
toward the rear of the chassis. There is provision for 17 rear panel-mounted
80 mm interface modules.
Three DC-powered fans provide forced air cooling for the power supply,
mass storage enclosure, and VME modules. Convection cooling is used for
the rear-mounted modules.
The rear of the chassis supports standard double-high Eurocard panels and
80 mm modules such as MVME7XX series modules. Table 1-1 lists the
specifications for the MVME956AC chassis and power supply. 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
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 frequency
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)
Note
20% to 80% (noncondensing)
Temperature and humidity limits are primarily determined
by the type of tape and disk media that 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.
1-4
Computer Group Literature Center Web Site
General Description
Power Supply Limit Considerations
The MVME956AC chassis is supplied with a 550-watt, 3-output switching
power supply. The power supply is capable of higher output currents than
the interconnection to the backplane. As designed, the enclosure +5 Vdc
output is rated at 60 amperes, the +12 Vdc output at 10 amperes (16 peak),
and the -12 Vdc output at 10 amperes.
!
Caution
The current rating for each individual output must not be
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 integrator must ensure that the installed peripheral
devices and VME module set do not exceed the power supply
rating.
VME Bus Backplane Description and Specifications
The MVME956AC chassis contains one 12-slot, full 64-bit VME bus
backplane mounted to the left of the peripheral 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)
5W (1.0 A max @ +5V), required by active
termination
Connectors
Device sockets
24 sockets: 160-pin IEC1076-4_xxx 2.54mm
connectors
Socket spacing (center-to-center): 0.8 inch
http://www.mcg.mot.com/literature
1-5
1
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 interference (RFI), and overall safety. It is possible, 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 following is a list of conditions that in general
must be met in order to achieve compliance with RFI standards:
1-6
❏
At a minimum, the chassis must be connected to earth ground
through the safety ground wire in the power cord to meet safety and
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 conductive panels to 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.
Computer Group Literature Center Web Site
General Precautions
❏
The VME module front panel screws should be properly tightened
for good grounding.
For minimum RF emissions, it is essential that the foregoing conditions be
implemented. Failure to do so could compromise the RFI compliance of
the system.
This product, as configured and shipped by Motorola, has been designed
and tested for compliance with the following RFI standards and product
safety regulations:
❏
Electromagnetic Compatibility: FCC class A; European CE Class A
❏
Safety: UL 1950; CSA C22.2/950; VDE EN 60 950; IEC 950
It is the customer’s responsibility to verify compliance if the customer
makes changes or additions to the "as-shipped" configuration.
General Precautions
❏
Ensure that the air space above and below the chassis is not blocked,
and that the inlet screens and optional air filter are clean.
❏
The air inlet temperature must not exceed 40 degrees Celsius. If the
MVME956AC is installed in a rack with other chassis, be sure that
each chassis in the rack is provided with its own supply of fresh
cooling air. Do not use air heated by one chassis to “cool” another
chassis.
❏
All unused VME module slots must be covered to prevent cooling
air and/or RF emissions from escaping from the chassis.
❏
The chassis should be used only in a clean environment such as an
office or lab.
Operating Environment
When using tape and disk drive units in the MVME956AC chassis observe
the following:
http://www.mcg.mot.com/literature
1-7
1
1
General Information
❏
This equipment is intended for use in a relatively clean environment
(office or lab). In some industrial environments, you may need to
provide additional protection against airborne contaminants in order
to assure reliable operation of the floppy disk and magnetic tape
drives and media.
❏
This equipment is intended for use in an enclosure consisting of the
front bezel together with the Motorola top panel and side panels or
equivalent. Operating this equipment without a front bezel may
compromise compliance with RFI and/or product safety
regulations. It may expose the operator to electrical and mechanical
hazards.
Chassis Cooling Considerations
!
Caution
The system integrator must ensure that all modules used in the
system are properly cooled. The following information will
help you to determine whether the cooling is adequate.
The MVME956AC chassis is designed for an input air temperature below
40 degrees Celsius. Three DC-powered fans provide forced-air cooling for
the power supply, mass storage enclosure, and VME modules. The
direction of air flow is: in at the bottom of the chassis, past the power
supply and VME modules, and out the top of the chassis. The 24-volt fans
deliver 81 CFM at zero inches of water. An air filter is optional.
The fans provide airflow sufficient for most VME modules, but some highdensity, high-power modules may require more cooling than this enclosure
provides. When integrating VME modules that are known to be difficult to
cool, testing is advisable to confirm that such modules are properly cooled.
No forced air cooling is provided for the rear-mounted modules. The rearmounted modules are typically transition modules with few active
components, and cooling is generally not required.
1-8
Computer Group Literature Center Web Site
Hardware Preparation
Hardware Preparation
There are a number of items to check or tasks to perform before you apply
power to the chassis. These items include, but are not limited to, the items
summarized in the following table.
Table 1-3. Hardware Preparation Items
Item
Location of Instructions
VME bus backplane jumpers
Chapter 4 of this manual
Install modules
User’s manual(s) for the respective
module(s)
Install cables (as required)
MVME956AC installation
instructions, also other user’s
manual(s) as applicable
Chassis rack mounting
Chapter 2 of this manual
Jumper options on modules used in
this chassis (as required)
User’s manual(s) for the respective
module(s)
For peripheral drives: Select
jumper options on disk drive(s)
System manual, kit instructions
http://www.mcg.mot.com/literature
1-9
1
1
General Information
Related Documentation
Document Title
Motorola Publication
Number
MVME946 Desktop Cover Kit Installation
Instructions
MVME946CVR
MVME946 Rack Mount Kit Installation
Instructions
MVME946RKMT
MVME946 Air Filter Kit Installation Instructions
MVME946AFO
System Manual Module Set
68-SYSMODULE
The following VMEbus publications are available from the sources
indicated.
ANSI/IEEE Std 1014-1987 Versatile Backplane Bus:
The Institute of Electrical and Electronics Engineers, Inc.,
345 East 47th Street, New York, NY 10017, USA.
http://standards.ieee.org/
VME64 Extensions Specification, VITA 1.1-199X.
VMEbus International Trade Association,
http://www.vita.com
Vita 1.x Live Insertion for VME64x Requirements Standard, VMEbus
International Trade Association, http://www.vita.com
1-10
Computer Group Literature Center Web Site
2Chassis Mount Options
2
Overview
This chapter includes the installation instructions for the MVME956AC
chassis. Instructions on the installation of replacement assemblies are in
Chapter 6.
!
Warning
!
Caution
Dangerous voltages, capable of causing death are present in
this equipment. Use extreme caution when handling, testing
and adjusting.
Unless otherwise instructed, perform all hardware preparation
and/or installation with power disconnected. Installing or
removing hardware items such as modules and cables while
power is applied may damage the equipment.
Chassis Installation Instructions
The MVME956AC chassis can be configured for either rack mounting or
for lab benchtop use. This section describes the steps necessary to install
the optional desktop cover on the chassis for lab benchtop use or to
rackmount your unit.
Benchtop Operation
The MVME956AC chassis can be placed on a standard table or desk for
operation as a lab benchtop unit. For this configuration, the chassis must
be equipped with the Motorola side panels, top panel, and disk drive cover.
To prepare the MVME956AC for operation as a lab benchtop unit, follow
these steps.
2-1
Chassis Mount Options
2
Install the Desktop Cover Kit
1. The top and side panels are attached with ball stud pop-on, pop-off
catches. If the ball studs are not already installed on the chassis,
unpack the studs and thread them into place in the holes provided in
the top and sides of the chassis.
2. Install the side panels by positioning the ball stud catches over the
ball studs and pressing firmly inward until the catches engage.
3. Install the top panel by positioning the ball stud catches over the ball
studs and pressing downward until the catches engage.
Be sure the chassis is resting on a strong, level table or desk, in a clean
environment, with plenty of air space above and around the chassis. Refer
to Chassis Cooling Considerations on page 1-8.
2-2
Computer Group Literature Center Web Site
Chassis Installation Instructions
If you desire to have an MVME956AC chassis with top and side panels
after previously having purchased a chassis without them, order the cover
kit (MVME946CVR) referenced in Related Documentation on page 1-10.
TOP PANEL
SIDE PANEL
BEZEL
SIDE PANEL
BALL STUDS
11819.00 9797
Figure 2-1. Cover Kit
http://www.mcg.mot.com/literature
2-3
2
Chassis Mount Options
2
Rack Mounting Option
The MVME956AC can be mounted, along with other equipment, in a
standard 19-inch RETMA (or equivalent) rack. If the chassis is equipped
with the benchtop cover kit, you must first remove it.
Cover Kit Removal
1. The top and side panels are attached with ball stud pop-on, pop-off
catches. Remove the top panel by grasping the panel at the edges
and lifting it straight up from the chassis.
2. Remove the side panels by firmly grasping each panel and pulling it
straight out from the chassis.
3. Remove the ball studs from the top and sides of the chassis.
4. Remove the disk drive cover from the front opening.
To rack mount the MVME956AC unit, you must use the optional slide
mounting kit, MVME946RKMT. Be sure to observe and follow the special
cooling requirements explained in Chapter 1.
To rack-mount an MVME956AC chassis, follow the procedure below.
1. Install the two chassis slide sections as shown in using the binderhead screws that came in the kit. The right and left sections are
identical.
2. Determine where you will mount the chassis in the rack and how
much space is required for mounting. Install the rack slide rails in
the equipment rack using the binder-head screws and barnuts
supplied. The chassis can now be installed in the rack.
Note: The rack slide rails (18-5/8 inches) must coincide with that of
the chassis slide rails.
3. Align the chassis slide sections with the two rack-mounted slide
sections.
4. While depressing the loc/stop buttons on the chassis slide sections,
slide the chassis into the rack. Adjust the slide mounting hardware
until the chassis slides in and out smoothly.
2-4
Computer Group Literature Center Web Site
Chassis Installation Instructions
5. Secure the chassis using the rear mounting bracket supplied.
2
6. Reinstall the front bezel by aligning the pop-on/off catches on the
back of the bezel with the ball studs on the front panel of the chassis.
Press firmly into place.
7. Reconnect the power cable and power-on the system.
!
Caution
Implementation of this procedure may invalidate product
safety (e.g., UL, CSA, etc.) and RFI regulatory compliance
(FCC, VDE).
http://www.mcg.mot.com/literature
2-5
3Operating Procedures
3
Overview
This chapter provides a description of the controls, indicators, and
operating procedures for the MVME956AC chassis.
System operation using this chassis is completely dependent on your
choice of hardware and software. Therefore, the only operation discussed
here is a suggested basic power on/power off procedure.
Controls and Indicators
The MVME956AC chassis contains one control (switch). The switch has
an indicator (LED) that is powered by the +5 Vdc output from the power
supply. Some of the individual modules used in the chassis may also
contain controls and/or indicators. This manual describes only those that
are part of the chassis. For a description of other related controls and
indicators, refer to the documentation that came with your module(s).
The control provided for the MVME956AC chassis is an AC power
ON/OFF switch. With the switch in the OFF position, power to the
modules is removed but the primary side of the power supply remains
energized. This switch is located at the lower left front corner of the chassis
and provides a convenient means of powering the chassis up and down.
3-1
Operating Procedures
Power Control Procedure
A suggested power-on procedure for the chassis is as follows:
3
1. Ensure that all modules and cabling are properly configured and
installed. Also check that all required external cabling (to
peripherals) is correctly installed.
2. Plug in the AC line cord (at the rear of the chassis) and connect the
cord to an AC power source.
3. Set the power switch at the front of the chassis to (ON). The power
supply cycles up and the cooling fans immediately come on.
4. Power up any peripheral equipment interfaced to the chassis that has
its own power on/off switch.
A suggested power-off sequence for the chassis is as follows:
Note
Ensure that proper software shutdown procedures have been
executed before you continue.
1. Power down any peripheral equipment interfaced to the chassis that
has its own power on/off switch.
2. Set the power switch to OFF. The power supply cycles down, and
the cooling fans stop running. For the AC chassis only, the power
supply fan will continue to run.
3-2
Computer Group Literature Center Web Site
412-Slot VMEbus Backplane
4
Overview
This chapter provides a physical and electrical description of the 12-slot
VME bus backplane used in the MVME956AC chassis. Refer to Chapter
1 for features and specifications of the backplane. Refer to Chapter 6 for
removal and replacement procedures.
Physical Description
The backplane was designed to accommodate VME modules and disk
drive units. It accommodates up to 12 double-high user VME modules
containing both P1 and P2 connectors. The backplane is fully assembled
with connectors and terminators. It contains:
❏
12 connectors on the top row to receive connector P1 of the VME
modules
❏
12 connectors on the bottom row to receive VME module expansion
connector P2
Backplane Power
VME modules that plug into the backplane require voltages of +5 Vdc,
+12 Vdc, and -12 Vdc for operation. The MVME956AC chassis contains
a power supply and wiring that provide these voltages to the backplane.
The power connectors characteristics and the number and arrangement of
their pins are summarized in Figure 4-1 on page 4-4.
4-1
12-Slot VMEbus Backplane
Backplane Bus Connectors
All rows of J101 through J112 (Z, A, B, C, D) are interconnected across all
12 slots, which provides the required signals for A24/D16 operation.
The center row (B) of J201 through J212 is interconnected across all 12
slots, which provides the required signals for extended operation
(A32/D32).
4
Rows A and C of J201 through J212 are not interconnected, but are
available for I/O functions or expansion bus operation.
VME64x Bus Interface Signal Termination
Signal lines are terminated with active termination. For further information
on bus termination and VME64x bus backplane specifications, refer to the
VME64 Extensions Specification, VITA 1.1-199x.
4-2
Computer Group Literature Center Web Site
Backplane Preparation
Backplane Preparation
The chassis is shipped from the factory with the backplane fully equipped
with sockets (VME64X bus connectors), power connectors, and bus
terminator resistor networks. No special preparation or preassembly is
required prior to use.
You must configure the VME64X bus daisy-chain jumpers on the rear
(wire side) of the backplane. Refer to VITA 1.x Live Insertion for VME64x
requirements standard for more electrical detail and information on daisychain jumpering.
Note
Backplane daisy-chain jumpers normally are shipped with
the chassis. If necessary, additional jumpers can be ordered
from Motorola.
http://www.mcg.mot.com/literature
4-3
4
12-Slot VMEbus Backplane
- V2
PB1
J1
+ V1
PB4
+3. 3V
PB5
+3. 3V
PB6
+3. 3V
PB7
+3. 3V
PB8
J3
Row 1
J2
J101
SLOT 7
SLOT 6
SLOT 5
SLOT 4
SLOT 3
SLOT 2
J8
J7
J6
J5
J4
J102
J9
J103
SLOT 8
J104
J10
J105
SLOT 9
J106
J11
J107
SLOT 10
J108
J12
J109
SLOT 11
J110
J13
J111
SLOT 12
4
+ V2
PB3
J14
J112
- V1
PB2
+5V
PB9
-12V
PB10
+12V
PB11
+5V
PB12
+5V
PB13
+5V
PB14
+5V
PB15
+5V
PB16
+5V
PB17
GND
PB18
GND
PB19
GND
PB20
GND
PB21
GND
PB22
GND
PB23
GND
PB24
GND
PB25
GND
PB26
+5V
Row 2
Row 3
GROUND
J212 J211
VR1
J210
+3. 3V
PB27
J209
+3. 3V
PB28
J208
GND
PB29
J207
GND
PB30
J206
GND
PB31
J205
GND
PB32
J204
+5V
PB33
J203
+5V
PB34
J202 J201
+5V
PB35
VR2
Row 4
11864.00 9709
Figure 4-1. 12-Slot Backplane Connectors and Headers
Rear View
4-4
Computer Group Literature Center Web Site
Install the Daisy-Chain Jumpers
Install the Daisy-Chain Jumpers
All daisy-chain lines of the VME64x bus can be separately bypassed with
removable shorting jumpers on every connector socket. Shorting the input
to the output of the daisy-chain signals is required if the daisy-chains are
in use, and if a VME64x module design does not provide for the
propagation of the daisy-chain.
For instance, if a backplane slot contains a device module designed for
daisy-chain signal propagation, no jumpers are required on the jumper pins
for that slot. However, all empty slots, and slots containing modules
without this capability, must have daisy-chain jumpers installed to provide
propagation of these signals.
Daisy-chain bypass jumper areas are provided on the rear side of the
backplane. For an illustration of the backplane daisy-chain jumper wiring,
see Figure 4-2 on page 4-8.
The following procedure is suggested for installing the jumpers:
1. Attach an ESD strap to your wrist. Attach the other end of the ESD
strap to the chassis as a ground. The ESD strap must be secured to
your wrist and to ground throughout the procedure.
2. Perform an operating system shutdown. Turn the AC or DC power
off and remove the AC cord or DC power lines from the system.
3. At the rear of the backplane, select the row(s) of header pins that
require jumpers. Any backplane slot that will not be occupied by a
VME64x module requires jumpers on the rear backplane pins to
propagate the Bus Grant (BG) and Interrupt Acknowledge (IACK)
signals to the next VME64x module slot. See Figure 4-1 on page 4-4
and Table 4-2 on page 4-7.
For example: If a VME64x module is used in all slots except slots
J103 and J106, jumpers must be installed on the BG and IACK pins
associated with those slots. (The pins that must be jumpered are the
ones located immediately to the left of the module slot, J4 through
J14, depending on the slot, when viewed from the rear of the
backplane.) In this case, the following pairs of header pins would
require jumpers:
http://www.mcg.mot.com/literature
4-5
4
12-Slot VMEbus Backplane
– Row of pins, left side of slot J103 - BG0, BG1, ...
– Row of pins, left side of slot J106 - BG0, BG1, ...
Carefully align the jumper(s) on the correct pair of pins to be
jumpered and gently push until the top of the jumper is flush with
the top of the pins.
4
4. Continue in this fashion, placing jumpers on all pairs of pins for
each backplane slot that will not be occupied by a VME64x module.
Pin Assignments
Power Monitor Connection
Connectors J1 and J3 provide for the power monitor signals ACFAIL,
SYSFAIL and SYSRESET. They have the following pinouts.
Table 4-1. Power Monitor Connection
Pin Assignment for J1 Connector
Pin Assignment for J3 Connector
J1-1
GND
J3-1
ACFAIL
J1-2
NC
J3-2
SYSFAIL
J1-3
SYSRST
J3-3
SYSRST
J1-4
NC
J3-4
GND
J1-5
SYSFAIL
J1-6
NC
J1-7
ACFAIL
J1-8
NC
J1-9
+5V
J1-10
NC
For the location of these connectors, see Figure 4-1 on page 4-4.
4-6
Computer Group Literature Center Web Site
Install the Daisy-Chain Jumpers
Live Insertion
Sockets J4-J14 allow the daisy-chained bus grant arbitration and interrupt
priority resolution processes to continue unaffected during live insertion or
removal. These sockets, in conjunction with the headers for bus grant
signal jumpers and the headers for IACK signal jumpers can be used with
a user-supplied daisy-chain switch module. This switch module
incorporates the backplane daisy-chain bypass circuits.
Table 4-2. Live Insertion Connections
Sockets J4 through J14
Pin 1
+5V
Pin 2
LI/O
Pin 3
GND
NOTE: All jumper pins in slots that use the live insertion must be
removed before installing a user-supplied daisy chain switch module.
Header J2 can be used to monitor IACK signal on both pin 1 and pin 2.
For further information, refer to the VITA 1.x Live Insertion for VME64x
requirements standard.
http://www.mcg.mot.com/literature
4-7
4
12-Slot VMEbus Backplane
PIN
ACTIVE
TERMINATION
4
5
6
7
8
9
10
11
20
21
22
CARD SLOT
J112
J111
D32
C32
B32
A32
Z32
D1
C1
B1
A1
Z1
J102
D32
C32
B32
A32
Z32
D1
C1
B1
A1
Z1
J101
BG0IN
D1
C1
B1
A1
Z1
IACKOUT
IACK
IACKIN
REMOVABLE
SHUNT PLUG
(JUMPER)
BG3OUT
BG2OUT
BG3IN
BG0OUT
BG1IN
BG1OUT
BG2IN
D32
C32
B32
A32
Z32
DIRECTION OF
DAISY-CHAIN
PROPAGATION
VIEWED FROM
REAR SIDE OF
BACKPLANE
4
5
6
7
8
9
10
11
20
21
22
BUS GRANT
ACTIVE
TERMINATION
2114 9710
Computer Group Literature Center Web Site
4-8
D1
C1
B1
A1
Z1
4
D32
C32
B32
A32
Z32
Figure 4-2. Backplane Daisy-Chain Jumper Wiring
5Removal and Replacement
Procedures
5
Overview
This chapter provides recommended procedures for the removal and
replacement of MVME956AC chassis major assemblies. For
identification and location of the assemblies and parts mentioned in these
procedures, refer to the drawings and parts lists in Chapter 7.
The removal/replacement procedures are organized and presented in the
following order:
❏
Power Supply
❏
Disk and Tape Drive
❏
VME64x Bus Backplane
❏
Cooling Fan(s)
❏
Optional Air Filter Kit
Following ESD and Safety Procedures
Use ESD
Wrist Strap
Motorola strongly recommends that you use an antistatic wrist strap and a
conductive foam pad when installing or upgrading the system. Electronic
components, such as disk drives, computer boards, and memory modules,
can be extremely sensitive to ESD. After removing the component from
the system or its protective wrapper, place the component flat on a
grounded, static-free surface, and in the case of a board, component-side
up. Do not slide the component over any surface.
If an ESD station is not available, you can avoid damage resulting from
ESD by wearing an antistatic wrist strap (available at electronics stores)
that is attached to an unpainted metal part of the system chassis.
5-1
Removal and Replacement Procedures
Turn the system’s power off before you perform these procedures. Failure to
turn the power off before opening the system can result in personal injury or
Warning equipment damage. Hazardous voltage, current, and energy levels are present
in this product. Power switch terminals can have hazardous voltages present
even when the power switch is off. Do not operate the system with the cover
removed. Always replace the cover before turning on the system.
!
Prior to performing any of the following installation or removal
procedures, follow these steps.
5
1. Attach an ESD strap to your wrist. Attach the other end of the ESD
strap to the chassis as a ground. The ESD strap must be secured to
your wrist and to ground throughout the procedure.
2. Perform an operating system shutdown. Turn the AC or DC power
off and remove the AC cord or DC power lines from the system.
Power Supply
The suggested procedure for the removal and replacement of the power
supply assembly is as follows:
!
Warning
Removal of the power supply provides access to high
voltages. Ensure the power cord is removed from the power
supply. Allow one minute for the capacitors in the power
supply to discharge.
Removal
1. Turn the power OFF to all equipment and disconnect the power
cable from the AC power source.
2. If the MVME956AC chassis is rack mounted, slide it from the rack,
or if it is a lab benchtop unit, remove the top panel and right side
panel.
5-2
Computer Group Literature Center Web Site
Power Supply
3. Remove the screws holding the top cover to the chassis and remove
the top cover.
4. Remove the power supply mounting screw from the right side of the
chassis. Remove the additional screws from the back of the chassis.
5. Disconnect the cable assemblies from the power supply or from the
backplane, if access to the power supply connections is difficult.
6. Disconnect the +5V, +12V, -12V, and RTN wires from the
connections on the power supply.
5
7. Slide the power supply assembly vertically up and out of the chassis.
http://www.mcg.mot.com/literature
5-3
Removal and Replacement Procedures
5
Figure 5-1. Power Supply Removal/Replacement
Replacement
To replace the power supply assembly or to install an exchanged assembly,
follow these procedures.
1. Slide the power supply assembly vertically back into the chassis.
2. Reconnect the +5V, +12V, -12V, and RTN wires disconnected in
Step 6.
5-4
Computer Group Literature Center Web Site
Power Supply
3. Reconnect the cable assemblies removed in Step 5 above to the
power supply or backplane.
4. Reinstall the power supply mounting screw from the side of the
chassis. Reinstall the screws you removed from the back of the
chassis in Step 4 above.
5. Replace the chassis’ top cover with the screws removed in Step 3
above.
5
6. Slide the MVME956AC chassis back into its rack mounting or
reinstall the top and side panel on your lab benchtop unit.
http://www.mcg.mot.com/literature
5-5
Removal and Replacement Procedures
Disk and Tape Drive
To remove and replace disk and/or tape drives, follow these procedures.
Removal
1. Turn the power OFF to all equipment and disconnect the power
cable from the AC power source.
5
2. Slide the MVME956AC chassis out from its rack mounting remove
the top panel and the side panel nearest the drives.
3. Remove the front bezel.
4. Loosen the screws that engage the keyhole slots in the right side
access cover. Lift the cover up and off the screws.
5. Remove the screws on either side of the drive and partially pull the
drive out of the chassis. Disconnect the data and power cables.
Remove the drive from the chassis.
6. Remove the screws connecting the drive mount bracket to the drive.
Note: If this is a permanent removal, ensure that the remaining drive
identifications are correct and the terminating resistor is properly
installed.
7. If the drive is to be immediately replaced, go on to the replacement
procedure at this point.
8. Position the side access cover on the screws to engage the keyhole
slots properly. The washers must be on the outside of the cover.
9. When the screws have properly engaged the keyhole slots, slide the
cover down and tighten the screws.
10. Replace the front bezel.
11. Slide the MVME956AC chassis back into its rack mounting or
replace the side panel and the top panel to your lab benchtop unit.
5-6
Computer Group Literature Center Web Site
Disk and Tape Drive
5
11823.00 9708
Figure 5-2. Disk/Tape Drive Removal
Replacement
1. Follow the replacement procedure in the installation instructions
that came with your drive.
Note: Use the short (1/4 inch long) screws to attach the brackets to
the drive. The longer screws may damage the drives. Ensure that all
drives are properly identified and that the terminating resistor is
installed or removed as applicable.
2. Reconnect the power and data cables.
3. Position the side access cover on the screws to engage the keyhole
slots properly. The washers must be on the outside of the cover.
4. When the screws have properly engaged the keyhole slots, slide the
cover down and tighten the screws.
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5-7
Removal and Replacement Procedures
5. Replace the front bezel.
6. Slide the MVME956AC chassis back into its rack mounting or
replace the side panel and the top panel to your lab benchtop unit.
To reset the jumper addresses, refer to the installation instructions that
came with your drive.
5
5-8
Computer Group Literature Center Web Site
VME64x Bus Backplane
VME64x Bus Backplane
To remove or replace the backplane used in the MVME956AC chassis,
follow these procedures.
Removal
1. Turn the power OFF to all equipment and disconnect the power
cable from the AC power source.
5
2. Remove all external cabling connected to modules installed in the
chassis. Then remove all modules installed in the chassis.
3. Slide the MVME956AC chassis out from its rack mounting or
remove the top panel of your lab benchtop unit.
4. Remove the screws holding the top cover to the chassis and lift off
the top cover.
5. For better access to the backplane, you may remove the rear card file
subassembly from the rear of the chassis by removing the screws on
the left and right sides of the card file.
6. Remove all internal cables connected at the rear of the backplane.
7. Remove all power wires from the rear of the backplane.
Note: Mark the wire locations carefully so they can be correctly
reinstalled. Incorrect connection of these wires can cause damage to
the equipment.
8. Disconnect the bus bar’s ground and +5V by removing the screws
that attach it to the backplane.
9. Disconnect the stiffener bar from the chassis by removing the two
screws located on the left side of the chassis. Then, remove the two
screws on the right side of the chassis by accessing through the drive
cable access panel.
10. Loosen and remove the two rows of screws that secure the
backplane to the chassis frame members. Then remove the
backplane.
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5-9
Removal and Replacement Procedures
11. Now remove the stiffener from the backplane by removing the
screws from the front of the backplane. Note that the adhesive
associated with the insulating tape on the stiffener may make the
removal of the stiffener from the backplane somewhat difficult.
Take caution to prevent damage to the backplane when prying the
stiffener off.
5
11869.00 9710
Figure 5-3. Backplane Mounting (Card File Removed)
5-10
Computer Group Literature Center Web Site
VME64x Bus Backplane
Replacement
1. Attach the stiffener to the backplane with the screws removed in
Step 11 above.
2. Position the backplane with the J1 and J2 connectors toward the
front of the chassis.
3. Attach the backplane to the chassis frame members with the screws
removed in Step 10 above.
4. Attach the ends of the stiffener to the chassis using the screws
removed in Step 9 above.
5. Attach the ground bus bar to the backplane with the screws removed
in Step 8 above.
6. Connect all power wires removed in Step 7 above.
7. Connect all cables removed in Step 6 above to the rear of the
backplane.
8. Slide the card file back into position and attach with the screws
removed in Step 5.
9. Install the modules removed in Step 2 above.
10. Replace the top cover of the chassis with the screws removed in Step
4 above.
11. Slide the MVME956AC chassis back into its rack mounting or
reinstall the top panel on your lab benchtop unit.
12. Connect all external cabling removed in Step 2 above.
http://www.mcg.mot.com/literature
5-11
5
Removal and Replacement Procedures
Cooling Fan
To remove or replace one or more of the chassis cooling fans, follow these
procedures.
Removal
1. Turn the power OFF to all equipment and disconnect the power
cable from the AC power source.
5
2. Slide the MVME956AC chassis out from its rack mounting or
remove the top panel and side panels of your lab benchtop unit.
3. Remove the front bezel.
Note: Refer to Figure 7-1 on page 7-5 and Table 7-2 on page 7-4 for
parts identification and location.
4. At the left and right side of the chassis, remove the three screws
along each side of the base which hold the hinged fan tray and air
filter door in the chassis.
5. If the MVME956AC is not mounted in a rack, lay the unit on one
side.
6. Remove the screws that keep the fan tray and air filter door secured.
7. Swing the fan tray and air filter door open.
8. Depending on the fan you are replacing, unplug the appropriate fan
wire connector from its mating connector.
See the wiring diagram in Figure 7-3 on page 7-7.
9. Using a nut driver, remove the nuts and screws that secure the fan to
the tray.
10. Remove the fan.
5-12
Computer Group Literature Center Web Site
Cooling Fan
5
Figure 5-4. Cooling Fan Removal/Replacement
http://www.mcg.mot.com/literature
5-13
Removal and Replacement Procedures
Optional Air Filter Kit
If you are using the optional air filter (MVME946AFO) and wish to
replace it, refer to Related Documentation on page 1-10 for information on
the Air Filter Kit.
Replacement
1. Attach the new fan to the fan tray with the screws removed in Step
9 above.
5
2. Plug the appropriate fan wire connector into its mating connector.
3. Rotate the fan tray and air filter door back into place and secure
them with the screws removed in Step 4 and Step 6 of the removal
procedure. Set the unit upright if it is not mounted in a rack.
4. Reinstall the front bezel.
5. Slide the MVME956AC chassis back into its rack mounting or
reinstall the top panel and side panels on your lab benchtop unit.
5-14
Computer Group Literature Center Web Site
6Support Information
6
Introduction
This chapter provides parts lists, wiring diagram, and assembly drawings
for the MVME956AC chassis. For information concerning drawings and
parts lists for power supplies and mass storage units used in this chassis,
refer to their respective manuals or reference sheets.
Drawings/Wiring Diagram
Chassis assembly drawings for the MVME956AC chassis are provided in
this chapter. A chassis wiring diagram is included as part of the main
assembly drawing of the chassis. These drawings represent the latest
design at the time of printing. Occasionally, minor component changes are
made at the factory. Therefore, when replacing defective components or
parts, always use the same value as the defective part, even though the
diagram or drawing may indicate a different value or type.
6-1
Support Information
Parts Lists
Parts lists are provided for the MVME956 chassis major assemblies. This
list reflects the latest issue of hardware at the time of printing. The parts
list for the main chassis is provided below. The parts list for the major
assemblies is in Table 6-2 on page 6-4. The main assembly parts location
is illustrated in Figure 6-1 on page 6-5
.
Table 6-1. MVME956AC Chassis Parts List
6
6-2
COMPONENT
DESCRIPTION
27-W5328C01x
Chassis assembly
01-W1631B02x
Bezel assembly, 956
01-W2030E01x
AC power supply
01-W2287D01x
Assy fan, 24V Cholla+
01NW9804E44
Backplane assy, 1 2-slot, VME ext
07-W5215C01x
Access cover, left side
07-W5224C01x
Access cover, right side
07-W5225C01x
Card cage
07-W5329C01x
Cover, 956
07-W6858B01x
SCSI cable cover
07-W5331C01x
Stiffener, 956 motherboard
07-W6907B01x
Fan guard, Cholla+
07NW9502A96
Guard, 20x20mm, SW
30-W2285D02x
Power cable harness assembly
30-W2297D02x
DC harness,+2V MNFR.
30-W2295D03x
Cable assembly, switch/enable, AC unit
30-W2296D03x
Harness assembly, DC harness/enable
31-W5330C01x
Bus bar, 956 motherboard
33-W6414B01x
Voltage warning label
33-W4120C01x
Label enclosure, US
33-W6862B02x
Label enclosure, universal
64-W4211B01x
BDL, 1 wide
Computer Group Literature Center Web Site
Parts Lists
Table 6-1. MVME956AC Chassis Parts List (Continued)
COMPONENT
DESCRIPTION
64-W4727C01x
Front panel blanks
13-W6275B01x
Brk, mld dr flr
42NW9401A80
Mount, push cable tie
42NW9401B28
Tywrap, nylon,L3-7/8,B3/4
42NW9401B33
Retainer, tywrap, self-adhesive
42NW9401B35
Tywrap, nylon, L7-3/8,B1-7/8
75NW9402A32
Foot, round
29NW9805A83
Lug, quick connect, .250 w/blde
29NW9805B17
Jumper, insulated shorting
29NW9805B34
Terminator, .187"X.02" quick connect
29NW9805B38
Lug, quick connect, .187" w/blde
04NW9005A60
Flat washer, FLT, #10
03NW9004B48
Captive Screw, m2.5
03SW990F608
Sem, Phillips
03SW990F012
Sem, Phillips panhead, 10-32X3/4"
03SW990F604
Sem, Phillips panhead, 6-32X1/4"
03SW990F606
Sem, Phillips panhead, 6-32X3/8"
03SW990F626
Sem, Phillips, 6-32X1-5/8"
03SW990F806
Sem, Phillips panhead, 8-32X3/8"
03SW991F604
Screw, Phillips flathead, 6-32X1/4"
03SW993D212
Screw, Phfil, M2.5X.45X 12SCYI
02SW995E005
Nut, hex 10-32
02SW999E002
Nut, hex 6-32
http://www.mcg.mot.com/literature
6
6-3
Support Information
Table 6-2. MVME956AC-AC Major Assemblies
Model
Part
Number
MVME956AC
Description
Chassis
assy
Chassis with card cage, power
supply, backplane, power switch,
and cooling fans. Operates on
115/220 Vac input power.
Power supply, 550W, 115/230 Vac
input (+5 Vdc, +12 Vdc, and -12
Vdc). Includes cooling fan and
housing with cables.
---
01W2030E01X
Power
supply
---
01NW9804E44
Backplane VMEmodule backplane. Contains
12 connectors for P1 and P2 of
VME bus.
6
6-4
Common
Name
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Parts Lists
Power Supply
Assembly
Voltage Warning
Label
Top Cover
6
Stiffener
PWB Assy.
12-slot
Access Cover
Left Side
Front Panel.
blank
Cable Assy. DC
harness/enable
Chassis
Assembly
Card Cage
SCSI Cable Cover
BDL. 1 wide
Cable Assy
Switch/Enable
Access Cover
Right Side
Fan Assembly
Foot
Bezel Assembly
11877.00 9710
Figure 6-1. MVME956AC Chassis Assembly, 1 of 2
http://www.mcg.mot.com/literature
6-5
Support Information
Chassis Top Cover
Access Cover
Right Side
6
AIR FLOW
Fan Assembly
Filter Door
Fan & Filter Frame
Fan Guard
Optional
Air Filter
11876.00 9710
Figure 6-2. MVME956AC Chassis Assembly, 2 of 2
6-6
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Parts Lists
ORG/+12V
BLK/GND
Row 1
TO DRIVES
RED/+5V
BLK/GND
Row 2
Row 3
Row 4
PB
7
PB
35
PB
6
+5V
PB
34
PB
5
J11-A
P11
FAN
PB
33
+5V
PB
4
GND
PB
32
PB
3
FAN
GND
PB
31
PB
2
J11-B
P11
FAN
6
POWER SUPPLY
J1
PB
11
-12V
PB
10
GND
PB
11
PB
30
GND
PB
19
PB
29
PB
9
PB
18
RED
NC
WHT
J11-C
P11
FAN
BLK/WHT
RED/WHT
PB
28
BLK
RET
-12V
VIO
VIO F4
PB
27
ORN
RET +5V
+12V
BLK F6
+12V
PB
1
ORG F5
PB
8
T2
RED
T1
BLK
RED / WHT
RED / WHT
BLK / WHT
BLK / WHT
FRONT PNL SWITCH
SIG RTN
INHB
PWR GD/LED DRV
J14
BLK
WHT
RED
ASSY. POWER
SUPPLY
01-W2030E01A
2115 9710
Figure 6-3. MVME956AC Wiring Diagram
http://www.mcg.mot.com/literature
6-7
Index
A
A24/D16 operation 4-2
A32/D32 operation 4-2
ACFAIL 4-6
air cooling 1-3, 1-8
air filter door 5-14
air filter, optional 1-8
assemblies
backplane 1-2
chassis 1-2
power supply 1-2
assembly drawings 6-1
B
backplane
bus connectors 4-2
physical description 4-1
power output 4-1
preparation 4-3
backplane description 1-5
backplane power 1-3
benchtop cover kit, ordering 2-3
BG pins 4-5
bus termination 4-2
C
chassis
components 1-2
controls and indicators 3-1
cooling 1-8
documentation 1-10
features 1-1
installing 2-1
major assemblies 1-2
operating environment 1-8
power supply 1-3
regulatories 1-6
setup precautions 1-7
specifications 1-3
use and purpose 1-2
chassis assemblies, removal and replacement
5-1
control switch, location 3-1
cooling requirements 1-8
cover kit, installation 2-2
cover kit, removal 2-4
D
d SYSRES 4-6
daisy-chain
configure jumpers 4-3
install jumpers 4-5
jumper bypass 4-5
jumper wiring 4-8
jumpering 4-5
shorting the input to output 4-5
signal propagation 4-5
switch module 4-7
drive brackets, install 5-7
drives, optional 1-3
E
ESD procedures 5-1
Eurocard panels 1-3
expansion bus 4-2
extended operation 4-2
IN-1
Index
F
front panel, description 1-3
H
hardware issue 6-2
hardware preparation 1-9
I
I/O functions, backplane connectors 4-2
IACK pins 4-5
install drive brackets 5-7
installation instructions 2-1
L
R
rack mount, slide mounting kit 2-4
remove/replace AC power supply 5-2 to 5-5
remove/replace backplane 5-9 to 5-11
remove/replace cooling fan 5-12 to 5-14
remove/replace drives 5-6 to 5-8
RF emissions, precautions 1-7
RFI compliance 1-7, 1-8
RFI standard 1-6
live insertion 4-7
S
M
safety procedures 5-1
SCSI drive specifications 1-3
setting up the chassis 1-7
signal line termination 4-2
SYSFAI 4-6
system operation 3-1
system shutdown 5-2
manual overview 1-1
module support 1-3
mounting, benchtop 2-1
mounting, rack 2-4
O
operating environment 1-8
ordering jumpers 4-3
overview of manual 1-1
P
I
N
D
E
X
safety 5-1
to rack mount 2-4
publications, related 1-10
parts list
chassis assemblies 6-2
for subassemblies 6-1
main assembly 6-2
pin assignments 4-6
power monitor connections 4-6
power supply
description 1-2, 1-4
limits 1-4
preparation of backplane 4-3
procedures
benchtop operation 2-1
install jumpers 4-5
power control 3-2
power-off 3-2
power-on 3-1
IN-2
T
temperature requirements 1-7
terminating signal lines 4-2
U
using tape and disk drive units 1-7
V
VME modules and backplane 4-1
VME64x requirements standard 4-3
VMEbus backplane
description 1-5
VMEmodule specifications 1-3
voltage requirements, backplane 4-1
W
wiring diagram 6-1
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