Motorola MVME712M Installation And Use Manual

MVME712M

Transition Module

and P2 Adapter Board

Installation and Use

VME712MA/IH1

Notice

While reasonable efforts have been made to assure the accuracy of this document,
Motorola, Inc. assumes no liability r esulting from any omissions in this document,
or from the use of the information obtained ther ein. Motor ola r eserves the right to
revise this document and to make changes fr om time to time in the content hereof
without obligation of Motorola to notify any person of such revision or changes.

No part of this material may be repr oduced or copied in any tangible medium, or
stored in a retrieval system, or transmitted in any form, or by any means, radio,
electronic, mechanical, photocopying, recording or facsimile, or otherwise,
without the prior written permission of Motorola, Inc.

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 your country. Such references or information must not be
construed to mean that Motorola intends to announce such Motorola products,
programming, or services in your country.

Restricted Rights Legend

If the documentation contained herein is supplied, dir ectly 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

This manual, MVME712M Transition Module and P2 Adapter Board Installation and
Use, part number VME712MA/IH1, provides general information, hardware

preparation, installation instructions, and support information for the
MVME712M Transition Module and the P2 Adapter Board. It replaces an earlier
version of the manual, part number MVME712M/D2.

The modules are used as the interface between the following families of Motorola
RISC, CISC, and PowerPC VMEmodules, and their peripheral devices:

A P2 adapter module and cable are supplied with the MVME712M.
This manual is intended for anyone who wants to design OEM systems, supply

additional capability to an existing compatible system, or in a lab envir onment for
experimental purposes. A basic knowledge of computers and digital logic is
assumed.

To use this manual, you should be familiar with the applicable publications in the
related documentation list in this Preface.

MVME147 MPU VMEmodule MVME197 Single Board Computer (SBC)
MVME162 Embedded Controller MVME1600 Single Board Computer (SBC)
MVME167 Single Board Controller (SBC) MVME2600 Single Board Computer (SBC)
MVME177 Single Board Controller (SBC) MVME3600 VME Processor Module
MVME187 Single Board Controller (SBC)

Related Documentation

The Motorola publications listed below ar e referenced in this document. They may
be purchased, depending upon availability, by contacting your local Motorola
sales office.

Notes Although not shown in the above list, each Motorola

Computer Group manual publication number is
suffixed with characters which represent the revision
level of the document, such as “/D2” or “/IH2” (the
second revision of a manual); a supplement bears the
same number as the manual but has a suffix such as
“/D2A1” or “/IHA1” (the first supplement to the
manual).

Part names and part numbers are subject to change.
Schematics and parts lists are available by contacting

your local Motorola sales office.

Document Title

Motorola

Publication

Number

MVME147-0xx MPU VMEmodule Installation and Use VME147A/IH
MVME162 Embedded Controller Installation Guide MVME162IG/D
MVME162FX Embedded Controller Installation and Use V162FXA/IH
MVME167 Single Board Computer Installation Guide MVME167IG/D
MVME177 Single Board Computer Installation and Use VME177A/IH
MVME187 RISC Single Board Computer Installation Guide MVME187IG/D
MVME197DP and MVME197SP Single Board Computers

Installation Guide

MVME197IG/D

MVME197LE Single Board Computer Installation Guide MVME197LEIG/D
MVME1600 Single Board Computer Installation and Use V1600A/IH
MVME2600 Series Single Board Computer Installation and Use V2600A/IH
MVME3600 Series VME Processor Module Installation and Use V3600A/IH

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 Motor ola 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.

T o minimize shock hazar d, the equipment chassis and enclosure must be connected to an electrical ground.
The equipment is supplied with a three-conductor ac power cable. The power cable must be plugged into
an approved three-contact electrical outlet. The power jack and mating plug of the power cable 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 the CRT.

Breakage of the Cathode-Ray Tube (CRT) causes a high-velocity scattering of glass fragments (implosion).
T o pr event CR T implosion, avoid r ough handling or jarring of the equipment. Handling of the CR T should
be done 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.

All Motorola PWBs (printed wiring boards) are manufactured by UL-recognized
manufacturers, with a flammability rating of 94V-0.

!

WARNING

This equipment generates, uses, and can radiate electro­magnetic energy. It may cause or be susceptible to electro­magnetic interference (EMI) if not installed and used in a
cabinet with adequate EMI protection.

Motorola® and the Motorola symbol are registered trademarks of Motorola, Inc.
PowerPC

TM

and VMEmoduleTM are trademarks of Motorola, Inc.

All other products mentioned in this document are trademarks or registered
trademarks of their respective holders.

© Copyright Motorola 1989, 1993, 1994, 1996, 1997

All Rights Reserved

Printed in the United States of America

March 1997

European Notice: Board products with the CE marking comply with the EMC
Directive (89/336/EEC). Compliance with this directive implies conformity to
the following European Norms:

EN55022 (CISPR 22) Radio Frequency Interference
EN50082-1 (IEC801-2, IEC801-3, IEEC801-4) Electromagnetic Immunity
The product also fulfills EN60950 (product safety) which is essentially the r equir ement for

the Low Voltage Directive (73/23/EEC).
This board product was tested in a representative system to show compliance with the

above mentioned requirements. A pr oper installation in a CE-marked system will maintain
the required EMC/safety performance.

vii

Contents

Chapter 1 General Information

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

Description............................................................................................................1-1

MVME712M Transition Module..................................................................1-2

P2 Adapter Board ..........................................................................................1-2

Specifications ........................................................................................................1-3

Cooling Requirements ..................................................................................1-4

FCC Compliance............................................................................................1-5

Chapter 2 Preparing and Installing the Hardware

Introduction ..........................................................................................................2-1

Unpacking the Hardware....................................................................................2-1

Preparing the MVME712M Module..................................................................2-1

DTE/DCE Configuration Select Headers..................................................2-2

Serial Port 1 DCE Configuration -- J1 and J11.....................................2-4

Serial Port 1 DTE Configuration -- J1 and J11.....................................2-5

Serial Port 2 DCE Configuration -- J16 and J17...................................2-6

Serial Port 2 DTE Configuration -- J16 and J17...................................2-7

Serial Port 3 DCE Configuration -- J13 and J14...................................2-8

Serial Port 3 DTE Configuration - J13 and J14 ....................................2-9

Serial Port 4 DCE Configuration -- J18 and J19.................................2-10

Serial Port 4 DTE Configuration - J18 and J19 ..................................2-11

Serial Port 4 Clock Configuration Select Header -- J15....................2-12

SCSI Termination..................................................................................2-12

Preparing the P2 Adapter Board......................................................................2-13

Cables and Connectors......................................................................................2-13

Installing the MVME712M Module and P2 Adapter Board........................2-16

Configuration A - Internal SCSI Devices Only........................................2-18

Configuration B - Internal SCSI Devices Only ........................................2-20

Configuration B1 - Internal SCSI Devices Only ......................................2-22

Configuration C - Internal and External SCSI Devices..........................2-24

Configuration C1 - Internal and External SCSI Devices........................2-26

Configuration D - Internal and External SCSI Devices..........................2-28

viii

Configuration E - External SCSI Devices Only....................................... 2-30

Configuration F - External SCSI Devices Only ....................................... 2-32

Chapter 3 Interconnect Signals

Introduction..........................................................................................................3-1

P2 Adapter Board.................................................................................................3-2

P2 Connector..................................................................................................3-2

J2 Connector ..................................................................................................3-2

J3 Connector...................................................................................................3-7

MVME712M Transition Module...................................................................... 3-10

J2 Connector ................................................................................................3-10

J3 and J4 Connectors................................................................................... 3-14

SCSI INTERFACE Connector ....................................................................3-17

J5 Connector.................................................................................................3-18

J6 Connector.................................................................................................3-20

J7 - J10 Connectors....................................................................................... 3-21

J20 Connector...............................................................................................3-22

J21 Connector...............................................................................................3-23

Index

ix

Figures

Figure 2-1. MVME712M Header Locations .....................................................2-3

Figure 2-2. Serial Port 1 Configured as DCE ...................................................2-4

Figure 2-3. Serial Port 1 Configured as DTE....................................................2-5

Figure 2-4. Serial Port 2 Configured as DCE ...................................................2-6

Figure 2-5. Serial Port 2 Configured as DTE....................................................2-7

Figure 2-6. Serial Port 3 Configured as DCE ...................................................2-8

Figure 2-7. Serial Port 3 Configured as DTE....................................................2-9

Figure 2-8. Serial Port 4 Configured as DCE .................................................2-10

Figure 2-9. Serial Port 4 Configured as DTE..................................................2-11

Figure 2-10. J15 Clock Line Configuration......................................................2-12

Figure 2-11. P2 Adapter Connector Locations ...............................................2-13

Figure 2-12. Configuration A -- Internal-Only SCSI Connections...............2-19

Figure 2-13. Configuration B -- Internal-Only SCSI Connections ...............2-21

Figure 2-14. Configuration B1 -- Internal-Only SCSI Connections .............2-23

Figure 2-15. Configuration C -- Internal and External SCSI Connections .2-25
Figure 2-16. Configuration C1 -- Internal and External SCSI Connections2-27
Figure 2-17. Configuration D -- Internal and External SCSI Connections.2-29

Figure 2-18. Configuration E -- External-Only SCSI Connections ..............2-31

Figure 2-19. Configuration F -- External-Only SCSI Connections...............2-33

x

Tables

Table 1-1. MVME712M Specifications...............................................................1-3

Table 2-1. MPU Jumpers/Switches for Clock Signals...................................2-12

Table 2-2. Cables and Connectors....................................................................2-14

Table 2-3. MVME712M Configurations...........................................................2-17

Table 3-1. P2 Adapter Board and MVME712M Connectors...........................3-1

Table 3-2. Connector J2 Interconnect Signals ...................................................3-2

Table 3-3. Connector J3 Interconnect Signals ...................................................3-7

Table 3-4. Connector J2 Interconnect Signals .................................................3-10

Table 3-5. Connectors J3 and J4 Interconnect Signals....................................3-14

Table 3-6. Connector SCSI INTERFACE Interconnect Signals.....................3-17

Table 3-7. Connector J5 Interconnect Signals .................................................3-19

Table 3-8. Connector J6 Interconnect Signals .................................................3-20

Table 3-9. Connectors J7 - J10 Interconnect Signals.......................................3-21

Table 3-10. Connector J20 Interconnect Signals .............................................3-22

Table 3-11. Connector J21 Interconnect Signals..............................................3-23

1

1-1

1General Information

Introduction

This chapter provides general information about the MVME712M
Transition Module and the P2 Adapter Board, including
description, specifications, cooling requirements, and FCC
compliance.

Description

The MVME712M is an I/O transition module for Motorola’s MPU
VMEmodule, VME Processor Module, Embedded Controller, and
Single Board Computer (SBC) families of processor VMEmodules,
referred to in this manual as MVMExxxx.

The MVME712M is used as an interface between the processor
module and its peripheral devices. The purpose of this module is to
provide rear panel industry-standard connectors that simplify
external customer cable requirements.

The P2 adapter board and cables are supplied for interconnection
between the MVME712M and the MVMExxxx. The P2 adapter
assembly routes the I/O signals and grounds from the P2 connector
on the chassis backplane, at the VMEmodule MPU connection, to
the MVME712M.

The MVME712M routes the signals to four serial ports,
implemented with four industry standard DB-25 connectors, on its
front panel. The serial ports may be configured for EIA-232-D DTE
or DCE through jumper arrangements on the MVME712M.

The MVME712M front panel also has an Ethernet port, a SCSI port,
and a printer port. In addition, the MVME712M routes the EIA-232­D port 2 signals to an internal modem.

1-2

General Information

1

MVME712M Transition Module

The features of the MVME712M include:

❏ Four 25-pin multiprotocol EIA-232-D serial ports

(through P2 adapter)

❏ One independent printer port (through P2 adapter)
❏ Small Computer Systems Interface (SCSI) shielded connector

bus interface (through P2 adapter) for connection to internal
and external devices

❏ Green LED on module to indicate terminator power
❏ Yellow LED on module to indicate transceiver power
❏ SCSI terminating resistors mounted in sockets for end-of-

cable or middle-of-cable configuration

❏ Modem connection on module
❏ Radio Frequency Interference (RFI) protection on front panel
❏ Electrostatic Discharge (ESD) protection on front panel

P2 Adapter Board

The MVME712M requires the use of the P2 Adapter Board. The
features of the P2 Adapter Board include:

❏ A connector that permits SCSI cable connection to other SCSI

devices and/or to the MVME712M through a flat ribbon
cable

❏ SCSI terminating resistors mounted in sockets, for end-of-

cable or middle-of-cable configuration

❏ Terminator power developed on the P2 adapter from the

+5 Vdc on connector P2, and fused (1 A) on the P2 adapter

❏ A connector that interfaces the EIA-232-D ports, printer port,

SCSI lines, and Ethernet signals to the MVME712M

Specifications

1-3

1

Specifications

Table 1-1 lists the general specifications for the MVME712M
Transition Module. The subsequent sections detail cooling
requirements and FCC compliance.

A complete functional description of the MVME712M appears in
Chapter 2.

Table 1-1. MVME712M Specifications

Characteristics Specifications

Power requirements +5 Vdc 281 mA maximum

255 mA typical

+12 Vdc

-12 Vdc

I/O ports Serial Four multiprotocol serial ports

(connected through P2 adapter board)

Printer Centronics printer port

(connected through P2 adapter board)

Operating temperature 0 degrees to 55 degrees C at point of entry of

forced air, approximately 5 Cubic Feet per

Minute (CFM)
Storage temperature -40 degrees to 85 degrees C
Relative humidity 5% to 90% (non-condensing)
Physical characteristics

(excluding front panel)

Height 9.187 inches (233.35 mm)
Depth 3.200 inches (80.0 mm)
Thickness 0.063 inches (1.6 mm)

1-4

General Information

1

Cooling Requirements

Motorola VMEmodules are specified, designed, and tested to
operate reliably with an incoming air temperature range from 0
degrees C to 55 degrees C (32 degrees F to 131 degrees F) with
forced air cooling.

Temperature qualification is performed in a standard Motorola
VMEsystem 1000 chassis. Twenty-five watt load boards are
inserted in the two card slots, one on each side, adjacent to the
board under test to simulate a high power density system
configuration. An assembly of three axial fans, rated at 71 Cubic
Feet per Minute (CFM) per fan, is placed directly under the MVME
card cage. The incoming air temperature is measured between the
fan assembly and the card cage where the incoming airstream first
encounters the module under test.

Test software is executed as the module is subjected to ambient
temperature variations. Case temperatures of critical, high power
density integrated circuits are monitored to ensure component
vendors specifications are not exceeded.

While the exact amount of airflow required for cooling depends on
the ambient air temperature and the type, number, and location of
boards and other heat sources, adequate cooling can usually be
achieved with 5 CFM flowing over the module. Less air flow is
required to cool the module in environments having lower
maximum ambients.

Under more favorable thermal conditions it may be possible to
operate the module reliably at higher than 55 degrees C with
increased air flow. It is important to note that there are several
factors, in addition to the rated CFM of the air mover, which
determine the actual volume of air flowing over a module.

Specifications

1-5

1

FCC Compliance

This VMEmodule (MVME712M) was tested in an FCC-compliant
chassis, and meets the requirements for Class A equipment. FCC
compliance was achieved under the following conditions:

❏ Shielded cables on all external I/O ports
❏ Cable shields connected to earth ground via metal shell

connectors bonded to a conductive module front panel

❏ Conductive chassis rails connected to earth ground; this

provides the path for connecting shields to earth ground

❏ Front panel screws properly tightened

For minimum RF emissions, it is essential that the conditions above
be implemented; failure to do so could compromise the FCC
compliance of the equipment containing the modules.

1-6

General Information

1

2

2-1

2Preparing and Installing

the Hardware

Introduction

This manual provides hardware preparation and installation
instructions for the MVME712M and P2 adapter board.

Unpacking the Hardware

Note If the carton is damaged upon receipt, request that

the carrier's agent be present during unpacking and
inspection of the equipment.

Unpack the equipment from the shipping carton. Refer to the
packing list and verify that all items are present. Save the packing
material for storing and reshipping of the equipment.

!

Caution

Avoid touching areas of integrated circuitry; static
discharge can damage circuits.

Preparing the MVME712M Module

The locations of the headers, LEDs, terminators, and connectors for
the MVME712M are shown in Figure 2-1. The module has been
factory tested and is shipped with factory-installed jumpers that
configure the MVME712M to provide the system functions
required for a VMEbus system.

2-2

Preparing and Installing the Hardware

2

The factory default configurations are shown in the following
paragraphs with descriptions of each header. The module is
operational with the factory-installed jumpers.

You can change the jumper settings on the following headers to
establish the DTE or DCE configuration and the Serial Port 4 clock
configuration:

DTE/DCE Configuration Select Headers

Serial Ports 1 through 4 can be configured as a modem (DCE) for
connection to terminal or configured as a terminal (DTE) for
connection to modem. The MVME712M is shipped with the ports
configured for DTE operation.

Configuration of each port is accomplished by positioning jumpers
on one of two headers for each port:

These headers ... Configure the ...

J1, J11, J13, J14, J16 - J19 DTE/DCE
J15 Serial Port 4 clock

These headers ...

Configure these

serial ports ...

J1 and J11 1
J16 and J17 2
J13 and J14 3
J18 and J19 4

Preparing the MVME712M Module

2-3

2

Figure 2-1. MVME712M Header Locations

J7

1

2

J9

132513

25

1141

14

J8

J10

132513

25

1141

14

18

915

J6

18 1

19

81

R51

C1 C2 C3

J2

J3

1

50

49

A1

C1 C32

A32

2

1

14

13

J1

2

1

14

13

J13

2

1

14

13

J16

2

1

14

13

J18

81

R50

81

R49

2

1

14

13

J11

2

1

14

13

J14

2

1

14

13

J17

2

1

14

13

J19

2

1

20

19

16

J21

J20

212

J15

11

1

2

49

50

DS2DS1

J5

J4

cb228 9212

ETHERNET

PRINTER

MVME712M

SERIAL PORT 1 / CONSOLE

SERIAL PORT 3

SERIAL PORT 2 / TTY01

SERIAL PORT 4

SCSI

INTERFACE

PRIMARY SIDE

36

2-4

Preparing and Installing the Hardware

2

Serial Port 1 DCE Configuration -- J1 and J11

To configure Port 1 for DCE (modem to terminal) operation, install
jumpers on headers J1 and J11 as shown below. The schematic
representation of this configuration is shown in Figure 2-2.

Figure 2-2. Serial Port 1 Configured as DCE

1357911

J1

J11

13

135791113

+12V

SCC

MVME

xxxx

Processor VMEmodule

TXD

DTR*

RTS*

TRXC*

RXD

DCD*

CTS*

RTXC*

D

D

R

R

P2

ADAPTER

BOARD

64 PIN

CABLE

MVME712M

TRANSITION

BOARD

RXD

DCD

CTS

DSR

GND

TXD

RTS

DB25

3

8

5

6

7

2

4

cb212 9212A

1.5K

NC

NC

MC145406 or equivalent

+12V

1.5K

NC

Driver/Receiver Gates

Preparing the MVME712M Module

2-5

2

Serial Port 1 DTE Configuration -- J1 and J11

To configure Port 1 for DTE (terminal to modem) operation, remove
jumpers from header J1 and install jumpers on header J11 as shown
below. This is the default configuration as shipped from the factory.
The schematic representation of this configuration is shown in
Figure 2-3.

Figure 2-3. Serial Port 1 Configured as DTE

1357911

J1

J11

13 135791113

SCC

MVME

xxxx

Processor VMEmodule

TXD

DTR*

RTS*

TRXC*

RXD

DCD*

CTS*

RTXC*

D

D

R

R

P2

ADAPTER

BOARD

64 PIN

CABLE

MVME712M

TRANSITION

BOARD

TXD

DTR

RTS

GND

RXD

CTS

DB25

2

20

4

7

3

5

cb213 9212A

NC

NC

+12V

1.5K

MC145406 or equivalent

Driver/Receiver Gates

NC

2-6

Preparing and Installing the Hardware

2

Serial Port 2 DCE Configuration -- J16 and J17

To configure Port 2 for DCE (modem to terminal) operation, install
jumpers on header J16 and remove jumpers from header J17 as
shown below. The schematic representation of this configuration is
shown in Figure 2-4.

Figure 2-4. Serial Port 2 Configured as DCE

J16

J17

135791113

135791113

+12V

SCC

MVME

xxxx

Processor VMEmodule

TXD

DTR*

RTS*

TRXC*

RXD

DCD*

CTS*

RTXC*

D

D

D

R

R

R

P2

ADAPTER

BOARD

64 PIN

CABLE

MVME712M

TRANSITION

BOARD

RXD

DCD

CTS

DSR

GND

TXD

DTR

RTS

DB25

3

8

5

6

7

2

20

4

cb214 9212A

1.5K

NC

NC

MC145406 or equivalent

Driver/Receiver Gates

Preparing the MVME712M Module

2-7

2

Serial Port 2 DTE Configuration -- J16 and J17

To configure Port 2 for DTE (terminal to modem) operation, remove
jumpers from header J16 and install jumpers on header J17 as
shown below. This is the default configuration as shipped from the
factory. The schematic representation of this configuration is shown
in Figure 2-5.

Figure 2-5. Serial Port 2 Configured as DTE

1357911

J16

J17

13 135791113

SCC

MVME

xxxx

Processor VMEmodule

TXD

DTR*

RTS*

TRXC*

RXD

DCD*

CTS*

RTXC*

D

D

D

R

R

R

P2

ADAPTER

BOARD

64 PIN

CABLE

MVME712M

TRANSITION

BOARD

TXD

DTR

RTS

GND

RXD

DCD

CTS

DB25

2

20

4

7

3

8

5

cb215 9212A

NC

NC

MC145406 or equivalent

Driver/Receiver Gates

2-8

Preparing and Installing the Hardware

2

Serial Port 3 DCE Configuration -- J13 and J14

To configure Port 3 for DCE (modem to terminal) operation, install
jumpers on header J13 and remove jumpers from header J14 as
shown below. The schematic representation of this configuration is
shown in Figure 2-6.

Figure 2-6. Serial Port 3 Configured as DCE

J13

J14

135791113

135791113

+12V

SCC

MVME

xxxx

Processor VMEmodule

TXD

DTR*

RTS*

TRXC*

RXD

DCD*

CTS*

RTXC*

D

D

D

R

R

R

P2

ADAPTER

BOARD

64 PIN

CABLE

MVME712M

TRANSITION

BOARD

RXD

DCD

CTS

DSR

GND

TXD

DTR

RTS

DB25

3

8

5

6

7

2

20

4

cb216 9212A

1.5K

NC

NC

MC145406 or equivalent

Driver/Receiver Gates

Preparing the MVME712M Module

2-9

2

Serial Port 3 DTE Configuration - J13 and J14

To configure Port 3 for DTE (terminal to modem) operation, remove
jumpers from header J13 and install jumpers on header J14 as
shown below. This is the default configuration as shipped from the
factory. The schematic representation of this configuration is shown
in Figure 2-7.

Figure 2-7. Serial Port 3 Configured as DTE

1357911

J13

J14

13 135791113

SCC

MVME

xxxx

Processor VMEmodule

TXD

DTR*

RTS*

TRXC*

RXD

DCD*

CTS*

RTXC*

D

D

D

R

R

R

P2

ADAPTER

BOARD

64 PIN

CABLE

MVME712M

TRANSITION

BOARD

TXD

DTR

RTS

GND

RXD

DCD

CTS

DB25

2

20

4

7

3

8

5

cb217 9212A

NC

NC

MC145406 or equivalent

Driver/Receiver Gates

2-10

Preparing and Installing the Hardware

2

Serial Port 4 DCE Configuration -- J18 and J19

To configure Port 4 for DCE (modem to terminal) operation, install
jumpers on header J18 and remove jumpers from header J19 as
shown below. The schematic representation of this configuration is
shown in Figure 2-8.

Figure 2-8. Serial Port 4 Configured as DCE

J18

J19

135791113 135791113

+12V

SCC

MVME

xxxx

Processor VMEmodule

TXD

DTR*

RTS*

TRXC*

RXD

DCD*

CTS*

RTXC*

D

D

D

D

R

R

R

R

R

D

P2

ADAPTER

BOARD

64 PIN

CABLE

MVME712M

TRANSITION

BOARD

RXD

DCD

CTS

DSR

RTXC
RRXC

TTXC

GND

TXD

DTR

RTS

DB25

3

8

5

6

15
17

24

7

2

20

4

cb218 9212A

1

1

TRXC4

RTXC4

1.5K

J15

1

MC145406 or equivalent

Driver/Receiver Gates

MVME147/167/177/187 example;
see Table 2-1 and your MPU manual.

Preparing the MVME712M Module

2-11

2

Serial Port 4 DTE Configuration - J18 and J19

To configure Port 4 for DTE (terminal to modem) operation, remove
jumpers from header J18 and install jumpers on header J19 as
shown below. This is the default configuration as shipped from the
factory. The schematic representation of this configuration is shown
in Figure 2-9.

Figure 2-9. Serial Port 4 Configured as DTE

1357911

J18

J19

13 135791113

SCC

MVME

xxxx

Processor VMEmodule

TXD

DTR*

RTS*

TRXC*

RXD

DCD*

CTS*

RTXC*

D

D

D

D

R

R

R

R

R

D

P2

ADAPTER

BOARD

64 PIN
CABLE

MVME712M

TRANSITION

BOARD

TXD

DTR

RTS

RTXC

RRXC

TTXC

GND

RXD

DCD

CTS

DB25

2

20

4

15
17

24

7

3

8

5

cb219 9212A

1

1

TRXC4

RTXC4

J15

1

MC145406 or equivalent

Driver/Receiver Gates

see Table 2-1 and your MPU manual.

MVME147/167/177/187 example;

2-12

Preparing and Installing the Hardware

2

Serial Port 4 Clock Configuration Select Header -- J15

Serial Port 4 can be configured to use clock signals by the TRXC4
and RTXC4 signal lines. Header J15 configurations of the clock lines
are shown in Figure 2-10. The module is shipped without clock lines
connected (no jumpers).

Part of the configuration must be done with headers or switches on
the processor VMEmodule, as listed in Table 2-1.

For more information refer to Figures 2-8 and 2-9 and to the
installation guide furnished with your processor VMEmodule.

Figure 2-10. J15 Clock Line Configuration

SCSI Termination

You must ensure that the SCSI bus is terminated properly. The P2
adapter and the MVME712M module have sockets for terminating
the SCSI lines. Both the P2 adapter and the MVME712M use three
8-pin Single In-line Package (SIP) resistors. Refer to the installation
instructions in Installing the MVME712M, in this cahpter, for details
on use of the terminators.

Table 2-1. MPU Jumpers/Switches for Clock Signals

Processor
Module

Header

Processor
Module

Header Switch

MVME147 J8, J9 MVME197 S6
MVME162 J12 MVME1600 J8, J15, J16
MVME167 J9, J10 MVME2600 J16, J17, J20
MVME177 J9, J10 MVME3600 J9, J10, J16
MVME187 J7, J8

TRXC4 TO PORT 4 PIN 15
TRXC4 TO PORT 4 PIN 17

TRXC4 TO PORT 4 PIN 24

RTXC4 TO PORT 4 PIN 24
RTXC4 TO PORT 4 PIN 17

RTXC4 TO PORT 4 PIN 15

cb210 9212A

1357911

J15

Preparing the P2 Adapter Board

2-13

2

Preparing the P2 Adapter Board

The P2 adapter board, part number 01-W3496B01A, is required.
Preparation of the P2 adapter consists of removing or replacing the
terminating resistors for SCSI. Figure 2-11 shows the component
locations. Refer to the installation instructions in Installing the
MVME712M, in this chapter, for use of the terminators.

A P2 mounting bracket kit, part number 67-W2167C01A, is also
furnished for use on some systems.

Figure 2-11. P2 Adapter Connector Locations

Cables and Connectors

The MVME712M front panel has four serial ports, one printer port,
one SCSI port, and one Ethernet port. The connectors for these
ports, the P2 backplane connector, and two modem connectors are
described in Table 2-2. The P2 adapter board’s MVME712M
connector, P2 connector, and SCSI connector are also described in
the table.

C1
B1
A1

C32
B32
A32

2
1

50
49

R2 R3R1

P2

1

A1
B1
C1

A32
B32
C32

J2

J3

cb211 9212A

Terminating
Resistors
for SCSI

F1

Fuse

2-14

Preparing and Installing the Hardware

2

Cables recommended for use with the connectors are also listed in
the table. Note that not all peripheral cables needed are provided
with the MVME712M; you may need to fabricate or purchase
certain cables.

Table 2-2. Cables and Connectors

MVME712M Front Panel

Port Connector Description Cable

Serial Ports
1 through 4

J7 through
J10

25-pin female DB-25
connectors that cable to
your serial devices

User-supplied serial EIA­232-D DTE or DCE cable

Printer Port J5 36-pin female connector

that cables to your printer

User-supplied Centronics­type parallel printer cable,
male-to-male

Ethernet Port J6 15-pin female DB-15

connector that cables to
your Ethernet network
controller, or connects to
an adapter box

User-supplied network
cable or user-supplied
adapter box to convert to
another medium

SCSI Interface
Port

J4 50-pin female connector

that cables to your SCSI
devices

User-supplied 50-conductor
cable with SCSI
connector(s) as needed

MVME712M Board

Interconnection Connector Description Cable

SCSI J3 50-pin male IDC

connector that cables to J3
on the P2 adapter board
and/or to SCSI devices, in
almost all configurations

In the external-only SCSI
configuration labeled
“Configuration E” in Table
2-3 and Figure 2-18, use the

17.5-inch 50-conductor flat­ribbon cable, part number
30-W2960B01A, furnished
with the MVME712M

For other configurations, a
user-supplied 50-conductor
cable with SCSI
connector(s) as needed

Cables and Connectors

2-15

2

Table 2-2. Cables and Connectors (Continued)

Modem J20 20-pin male IDC connector ,

connects to a user-supplied
modem

User-supplied 20-conductor
cable; usually supplied with
the modem

J21 6-pin polarized male

connector, supplies power
to the modem

User-supplied 6-conductor
cable; usually supplied with
the modem

VME J2 64-pin male connector that

cables to J2 on the P2
adapter board

17.5-inch 64-conductor flat
ribbon cable, part number
30-W2514B02, furnished
with the MVME712M
(see Note below)

P2 Adapter Board

Interconnection Connector Description Cable

VME P2 96-pin female DIN 41612

connector that connects to
the chassis backplane

None needed

J2 64-pin male connector that

cables to J2 on the
MVME712M

17.5-inch 64-conductor flat
ribbon cable, part number
30-W2514B02, furnished
with the MVME712M
(see Note below)

SCSI J3 50-pin male IDC

connector that cables to J3
on the MVME712M
and/or to SCSI devices

In the external-only SCSI
configuration labeled
“Configuration E” in Table
2-3 and Figure 2-18, use the

17.5-inch 50-conductor flat­ribbon cable, part number
30-W2960B01A, furnished
with the MVME712M.

For other configurations, a
user-supplied 50-conductor
cable with SCSI
connector(s) as needed

2-16

Preparing and Installing the Hardware

2

Installing the MVME712M Module and P2
Adapter Board

The MVME712M can be connected in different configurations. The
installation procedure begins on this page, and continues using the
instructions given for one of the configurations listed in Table 2-3.

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.

To begin the installation of the MVME712M in the system, proceed
as follows:

1. Turn all equipment power OFF and disconnect the power cable from
the power source.

Note If you wish to use your own cable for the P2 signals from J2 on the

P2 adapter board to J2 on the MVME712M, note that the cable
should be kept as short as possible. Any cable over 3 feet is likely
to cause signal problems.

The maximum cable length that can be used from the P2 adapter
board to the MVME712M will vary depending on what other
cables are attached to the MVME712.

Use ESD

Wrist Strap

Installing the MVME712M Module and P2 Adapter Board

2-17

2

!

Caution

Connecting modules while power is applied may result
in damage to components on the module.

!

Warning

Dangerous voltages, capable of causing death, are
present in this equipment. Use extreme caution when
handling, testing, and adjusting.

2. Remove the chassis cover as instructed in the equipment user's manual.

3. Remove the filler panel(s) from the appropriate card slot(s) at the rear
of the chassis (if the chassis has a rear card cage). Other modules in the
unit may have to be moved to allow space for the cables connected to
the P2 adapter and the MVME712M.

4. Continue the installation procedure by choosing one of the
configurations listed in Table 2-3 and described on the following pages.

Note that the designations “A” through “F” are used solely as conve­nient references.

Table 2-3. MVME712M Configurations

Configuration

Internal

SCSI Devices

External

SCSI Devices

Pages

A X 2-18, 2-19

B X 2-20, 2-21

B1 X 2-22, 2-23
C X X 2-24, 2-25
C1 X X 2-26, 2-27
D X X 2-28, 2-29

E X 2-30, 2-31

F X 2-32, 2-33

2-18

Preparing and Installing the Hardware

2

Configuration A - Internal SCSI Devices Only

If SCSI devices are to be attached internal to your system, proceed as
follows. See Figure 2-12.

1. The MVMExxxx processor VMEmodule is at one end of the cable, so
terminators must be installed on the P2 adapter module.

2. Install the P2 adapter module on the rear of the backplane directly in
line with the P2 connector on the MVMExxxx. Be sure to orient pin 1 of
the adapter with pin 1 of the backplane connector.

3. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from connector J3 on the P2 adapter to the internal SCSI
devices.

4. Terminators must be installed on the last SCSI device in the system.

5. Attach the furnished 64-conductor cable, part number 30-W2514B02,
from connector J2 on the P2 adapter to connector J2 on the MVME712M.
Be sure to orient cable pin 1 with connector pin 1.

6. Insert the MVME712M module into the selected slots and tighten the
attaching screws, making good contact with the transverse mounting
rails to minimize RF emissions.

7. Make sure that cables will not be pinched by the cover and install the
cover that you previously removed.

8. Connect the power cable to the power source and turn the unit on.

9. The yellow LED (DS1) on the MVME712M should be lit (the LED can
be seen through the opening in the front panel). If not lit, then either a
cabling problem exists, a fuse is blown, or both.

If there is a cabling problem, then correct it. If not, check the fuse on the
MVMExxxx module, and replace if necessary. The fuse on the
MVMExxxx is for Ethernet transceiver power. The resistance of this
fuse should be less than 1 ohm.

Installing the MVME712M Module and P2 Adapter Board

2-19

2

Figure 2-12. Configuration A -- Internal-Only SCSI Connections

J6

J2

SCSI

DEVICE

MVME

xxxx

Processor VMEmodule

P1

P2

J3

ENCLOSURE BOUNDARY

TERMINATORS

INSTALLED

TERMINATORS

REMOVED

50-CONDUCTOR

CABLE

TERMINATORS

INSTALLED

MVME712M

cb2349301A

SCSI

DEVICE

P2 ADAPTER

P2

T

J3

J2

J9

J7

J8

J10

J4

J5

64-CONDUCTOR

CABLE

2-20

Preparing and Installing the Hardware

2

Configuration B - Internal SCSI Devices Only

If SCSI devices are to be attached internal to your system, and cabled for
easy change to configuration C, proceed as follows. See Figure 2-13.

1. The MVMExxxx processor VMEmodule is at one end of the cable, so
terminators must be installed on the P2 adapter module.

2. The MVME712M is at one end of the cable, so terminators must be
installed on the MVME712M.

3. Install the P2 adapter module on the rear of the backplane directly in
line with the P2 connector on the MVMExxxx. Be sure to orient pin 1 of
the adapter with pin 1 of the backplane connector.

4. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from connector J3 on the P2 adapter to the internal SCSI
devices and on to connector J3 on the MVME712M. This cable must be
a continuous cable.

5. Attach the furnished 64-conductor cable, part number 30-W2514B02,
from connector J2 on the P2 adapter to connector J2 on the MVME712M.
Be sure to orient cable pin 1 with connector pin 1.

6. Insert the MVME712M module into the selected slots and tighten the
attaching screws, making good contact with the transverse mounting
rails to minimize RF emissions.

7. Make sure that cables will not be pinched by the cover and install the
cover that you previously removed.

8. Connect the power cable to the power source and turn the unit on.

9. Both yellow (DS1) and green (DS2) LEDs on the MVME712M should be
lit (the LEDs can be seen through the opening in the front panel). If not
lit, then either a cabling problem exists, a fuse is blown, or both.

If there is a cabling problem, then correct it. If not, check the fuse on the
P2 adapter module and on the MVMExxxx module, and replace if nec­essary. The fuse on the P2 adapter module is for SCSI terminator pow­er. The fuse on the MVMExxxx is for Ethernet transceiver power. The
resistance of each fuse should be less than 1 ohm.

Installing the MVME712M Module and P2 Adapter Board

2-21

2

Figure 2-13. Configuration B -- Internal-Only SCSI Connections

J6

J2

SCSI

DEVICE

P1

P2

J3

ENCLOSURE BOUNDARY

TERMINATORS

INSTALLED

TERMINATORS

INSTALLED

MVME712M

cb2359301A

SCSI

DEVICE

P2 ADAPTER

P2

J3

J2

J9

J7

J8

J10

J4

J5

64-CONDUCTOR

CABLE

50-CONDUCTOR

CABLE

MVME

xxxx

Processor VMEmodule

2-22

Preparing and Installing the Hardware

2

Configuration B1 - Internal SCSI Devices Only

If SCSI devices are to be attached internal to your system, and cabled for
easy change to configuration C1, proceed as follows. See Figure 2-14.

1. The MVMExxxx processor VMEmodule is not at one end of the cable,
so terminators must be removed from the P2 adapter module.

2. The MVME712M is at one end of the cable, so terminators must be
installed on the MVME712M.

3. Install the P2 adapter module on the rear of the backplane directly in
line with the P2 connector on the MVMExxxx. Be sure to orient pin 1 of
the adapter with pin 1 of the backplane connector.

4. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from connector J3 on the MVME712M to connector J3
on the P2 adapter and on to the internal SCSI devices. This cable must
be a continuous cable.

5. Terminators must be installed on the last SCSI device on the cable.

6. Attach the furnished 64-conductor cable, part number 30-W2514B02,
from connector J2 on the P2 adapter to connector J2 on the MVME712M.
Be sure to orient cable pin 1 with connector pin 1.

7. Insert the MVME712M module into the selected slots and tighten the
attaching screws, making good contact with the transverse mounting
rails to minimize RF emissions.

8. Make sure that cables will not be pinched by the cover and install the
cover that you previously removed.

9. Connect the power cable to the power source and turn the unit on.

10. Both yellow (DS1) and green (DS2) LEDs on the MVME712M should be
lit (the LEDs can be seen through the opening in the front panel). If not
lit, then either a cabling problem exists, a fuse is blown, or both.

If there is a cabling problem, then correct it. If not, check the fuse on the
P2 adapter module and on the MVMExxxx module, and replace if nec­essary. The fuse on the P2 adapter module is for SCSI terminator pow­er. The fuse on the MVMExxxx is for Ethernet transceiver power. The
resistance of each fuse should be less than 1 ohm.

Installing the MVME712M Module and P2 Adapter Board

2-23

2

Figure 2-14. Configuration B1 -- Internal-Only SCSI Connections

J6

J2

SCSI

DEVICE

P1

P2

J3

ENCLOSURE BOUNDARY

TERMINATORS

REMOVED

TERMINATORS

INSTALLED

50-CONDUCTOR

CABLE

TERMINATORS

INSTALLED

MVME712M

cb236 9301A

SCSI

DEVICE

P2 ADAPTER

P2

T

J3

J9

J7

J8

J10

J4

J5

64-CONDUCTOR

CABLE

J2

50-CONDUCTOR

CABLE

MVME

xxxx

Processor VMEmodule

2-24

Preparing and Installing the Hardware

2

Configuration C - Internal and External SCSI Devices

If SCSI devices are to be attached internal and external to your system and
the MVMExxxx processor VMEmodule is at one end of the cable, proceed
as follows. See Figure 2-15.

1. The MVMExxxx is at one end of the cable, so terminators must be
installed on the P2 adapter module.

2. The MVME712M is not at one end of the cable, so terminators must be
removed from the MVME712M.

3. Install the P2 adapter module on the rear of the backplane directly in
line with the P2 connector on the MVMExxxx. Be sure to orient pin 1 of
the adapter with pin 1 of the backplane connector.

4. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from connector J3 on the MVME712M to the internal
SCSI devices and on to connector J3 on the P2 adapter. This cable must
be a continuous cable.

5. Attach the furnished 64-conductor cable, part number 30-W2514B02,
from connector J2 on the P2 adapter to connector J2 on the MVME712M.
Be sure to orient cable pin 1 with connector pin 1.

6. Insert the MVME712M module into the selected slots and tighten the
attaching screws, making good contact with the transverse mounting
rails to minimize RF emissions.

7. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from the SCSI connector on the front panel of the
MVME712M to the external SCSI devices.

8. Terminators must be installed on the last SCSI device on the cable.

9. Make sure that cables will not be pinched by the cover and install the
cover that you previously removed.

10. Connect the power cable to the power source and turn the unit on.

11. Both yellow (DS1) and green (DS2) LEDs on the MVME712M should be
lit (the LEDs can be seen through the opening in the front panel). If not
lit, then either a cabling problem exists, a fuse is blown, or both.

If there is a cabling problem, then correct it. If not, check the fuse on the
P2 adapter module and on the MVMExxxx module, and replace if nec­essary. The fuse on the P2 adapter module is for SCSI terminator pow­er. The fuse on the MVMExxxx is for Ethernet transceiver power. The
resistance of each fuse should be less than 1 ohm.

Installing the MVME712M Module and P2 Adapter Board

2-25

2

Figure 2-15. Configuration C -- Internal and External SCSI Connections

J6

J2

P1

P2

J3

ENCLOSURE BOUNDARY

TERMINATORS

INSTALLED

TERMINATORS

REMOVED

MVME712M

cb237 9301A

SCSI

DEVICE

P2 ADAPTER

P2

J3

J2

J9

J7

J8

J10

J4

J5

64-CONDUCTOR

CABLE

50-CONDUCTOR

CABLE

SCSI

DEVICE

50-CONDUCTOR

CABLE

TERMINATORS

INSTALLED

SCSI

DEVICE

T

SCSI

DEVICE

MVME

xxxx

Processor VMEmodule

2-26

Preparing and Installing the Hardware

2

Configuration C1 - Internal and External SCSI Devices

If SCSI devices are to be attached internal and external to your system and
the internal SCSI device is at one end of the cable, proceed as follows. See
Figure 2-16.

1. The MVMExxxx processor VMEmodule is not at one end of the cable,
so terminators must be removed from the P2 adapter module.

2. The MVME712M is not at one end of the cable, so terminators must be
removed from the MVME712M.

3. Install the P2 adapter module on the rear of the backplane directly in
line with the P2 connector on the MVMExxxx. Be sure to orient pin 1 of
the adapter with pin 1 of the backplane connector.

4. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from connector J3 on the MVME712M to connector J3 on
the P2 adapter and on to the internal SCSI devices. This cable must be a
continuous cable.

5. Terminators must be installed on the last SCSI device on the cable.

6. Attach the furnished 64-conductor cable, part number 30-W2514B02,
from connector J2 on the P2 adapter to connector J2 on the MVME712M.
Be sure to orient cable pin 1 with connector pin 1.

7. Insert the MVME712M module into the selected slots and tighten the
attaching screws, making good contact with the transverse mounting
rails to minimize RF emissions.

8. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from the SCSI connector on the front panel of the
MVME712M to the external SCSI devices.

9. Terminators must be installed on the last SCSI device on the cable.

10. Make sure that cables will not be pinched by the cover and install the
cover that you previously removed.

11. Connect the power cable to the power source and turn the unit on.

12. Both yellow (DS1) and green (DS2) LEDs on the MVME712M should be
lit (the LEDs can be seen through the opening in the front panel). If not
lit, then either a cabling problem exists, a fuse is blown, or both.

If there is a cabling problem, then correct it. If not, check the fuse on the
P2 adapter module and on the MVMExxxx module, and replace if nec­essary. The fuse on the P2 adapter module is for SCSI terminator power.
The fuse on the MVMExxxx is for Ethernet transceiver power. The re­sistance of each fuse should be less than 1 ohm.

Installing the MVME712M Module and P2 Adapter Board

2-27

2

Figure 2-16. Configuration C1 -- Internal and External SCSI Connections

SCSI

DEVICE

SCSI

DEVICE

J6

J2

P1

P2

J3

ENCLOSURE BOUNDARY

TERMINATORS

REMOVED

TERMINATORS

REMOVED

MVME712M

cb238 9301A

P2 ADAPTER

P2

J3

J2

J9

J7

J8

J10

J4

J5

50-CONDUCTOR

CABLE

50-CONDUCTOR

CABLE

SCSI

DEVICE

50-CONDUCTOR

CABLE

TERMINATORS

INSTALLED

SCSI

DEVICE

T

T

TERMINATORS

INSTALLED

64-CONDUCTOR

CABLE

MVME

xxxx

Processor VMEmodule

2-28

Preparing and Installing the Hardware

2

Configuration D - Internal and External SCSI Devices

If SCSI devices are to be attached internal and external to your system and
neither the internal SCSI device nor the MVMExxxx processor VMEmodule
is at one end of the cable, proceed as follows. See Figure 2-17.

1. The MVMExxxx is not at one end of the cable, so terminators must be
removed from the P2 adapter module.

2. The MVME712M is not at one end of the cable, so terminators must be
removed from the MVME712M.

3. Install the P2 adapter module on the rear of the backplane directly in
line with the P2 connector on the MVMExxxx. Be sure to orient pin 1 of
the adapter with pin 1 of the backplane connector.

4. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from connector J3 on the MVME712M to connector J3
on the P2 adapter and on to the internal SCSI devices and then to a user­supplied panel on the enclosure. This cable must be a continuous cable.

5. Attach the furnished 64-conductor cable, part number 30-W2514B02,
from connector J2 on the P2 adapter to connector J2 on the MVME712M.
Be sure to orient cable pin 1 with connector pin 1.

6. Insert the MVME712M module into the selected slots and tighten the
attaching screws, making good contact with the transverse mounting
rails to minimize RF emissions.

7. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from the SCSI connector on the front panel of the
MVME712M to the external SCSI devices.

8. Terminators must be installed on the last SCSI device on the cable.

9. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from the connector on the user-supplied panel to the
external SCSI devices.

10. Terminators must be installed on the last SCSI device on the cable.

11. Make sure that cables will not be pinched by the cover and install cover
that you previously removed.

12. Connect the power cable to the power source and turn the unit on.

13. Both yellow (DS1) and green (DS2) LEDs on the MVME712M should
be lit (the LEDs can be seen through the opening in the front panel). If
not lit, then either a cabling problem exists, a fuse is blown, or both.

If there is a cabling problem, then correct it. If not, check the fuse on the
P2 adapter module and on the MVMExxxx module, and replace if nec­essary. The fuse on the P2 adapter module is for SCSI terminator pow­er. The fuse on the MVMExxxx is for Ethernet transceiver power. The
resistance of each fuse should be less than 1 ohm.

Installing the MVME712M Module and P2 Adapter Board

2-29

2

Figure 2-17. Configuration D -- Internal and External SCSI Connections

SCSI

DEVICE

J6

J2

P1

P2

J3

ENCLOSURE BOUNDARY

TERMINATORS

REMOVED

TERMINATORS

REMOVED

MVME712M

cb239 9301A

P2 ADAPTER

J3

J2

J9

J7

J8

J10

J4

J5

50-CONDUCTOR

CABLE

50-CONDUCTOR

CABLE

SCSI

DEVICE

50-CONDUCTOR

CABLE

TERMINATORS

INSTALLED

T

USER PROVIDED

PANEL

64-CONDUCTOR

CABLE

SCSI

DEVICE

T

SCSI

DEVICE

TERMINATORS

INSTALLED

P2

MVME

xxxx

Processor VMEmodule

2-30

Preparing and Installing the Hardware

2

Configuration E - External SCSI Devices Only

If SCSI devices are to be attached external to your system and the
MVMExxxx processor VMEmodule is at one end of the cable, proceed as
follows. See Figure 2-18.

1. The MVMExxxx is at one end of the cable, so terminators must be
installed on the P2 adapter module.

2. The MVME712M is not at one end of the cable, so terminators must be
removed from the MVME712M.

3. Install the P2 adapter module on the rear of the backplane directly in
line with the P2 connector on the MVMExxxx. Be sure to orient pin 1 of
the adapter with pin 1 of the backplane connector.

4. Attach the furnished 50-conductor cable, part number 30-W2960B01A,
from connector J3 on the MVME712M to connector J3 on the P2 adapter.

5. Attach the furnished 64-conductor cable, part number 30-W2514B02,
from connector J2 on the P2 adapter to connector J2 on the MVME712M.
Be sure to orient cable pin 1 with connector pin 1.

6. Insert the MVME712M module into the selected slots and tighten the
attaching screws, making good contact with the transverse mounting
rails to minimize RF emissions.

7. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from the SCSI connector on the front panel of the
MVME712M to the external SCSI devices.

8. Terminators must be installed on the last SCSI device on the cable.

9. Make sure that cables will not be pinched by the cover and install the
cover that you previously removed.

10. Connect the power cable to the power source and turn the unit on.

11. Both yellow (DS1) and green (DS2) LEDs on the MVME712M should be
lit (the LEDs can be seen through the opening in the front panel). If not
lit, then either a cabling problem exists, a fuse is blown, or both.

If there is a cabling problem, then correct it. If not, check the fuse on the
P2 adapter module and on the MVMExxxx module, and replace if nec­essary. The fuse on the P2 adapter module is for SCSI terminator pow­er. The fuse on the MVMExxxx is for Ethernet transceiver power. The
resistance of each fuse should be less than 1 ohm.

Installing the MVME712M Module and P2 Adapter Board

2-31

2

Figure 2-18. Configuration E -- External-Only SCSI Connections

J6

J2

P1

P2

J3

ENCLOSURE BOUNDARY

TERMINATORS

INSTALLED

TERMINATORS

REMOVED

MVME712M

cb240 9301A

P2 ADAPTER

P2

J3

J2

J9

J7

J8

J10

J4

J5

50-CONDUCTOR

CABLE

SCSI

DEVICE

50-CONDUCTOR

CABLE

TERMINATORS

INSTALLED

SCSI

DEVICE

T

64-CONDUCTOR

CABLE

MVME

xxxx

Processor VMEmodule

2-32

Preparing and Installing the Hardware

2

Configuration F - External SCSI Devices Only

If SCSI devices are to be attached external to your system and the MVME-
xxxx processor VMEmodule is not at one end of the cable, proceed as fol-

lows. See Figure 2-19.

1. The MVMExxxx is not at one end of the cable, so terminators must be
removed from the P2 adapter module.

2. The MVME712M is not at one end of the cable, so terminators must be
removed from the MVME712M.

3. Install the P2 adapter module on the rear of the backplane directly in
line with the P2 connector on the MVMExxxx. Be sure to orient pin 1 of
the adapter with pin 1 of the backplane connector.

4. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from connector J3 on the MVME712M to connector J3
on the P2 adapter and on to a user-supplied panel on the enclosure.
This cable must be a continuous cable.

5. Attach the furnished 64-conductor cable, part number 30-W2514B02,
from connector J2 on the P2 adapter to connector J2 on the MVME712M.
Be sure to orient cable pin 1 with connector pin 1.

6. Insert the MVME712M module into the selected slots and tighten the
attaching screws, making good contact with the transverse mounting
rails to minimize RF emissions.

7. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from the SCSI connector on the front panel of the
MVME712M to the external SCSI devices.

8. Terminators must be installed on the last SCSI device on the cable.

9. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from the connector on the user-supplied panel to the
external SCSI devices.

10. Terminators must be installed on the last SCSI device on the cable.

11. Make sure that cables will not be pinched by the cover and install the
cover that you previously removed.

12. Connect the power cable to the power source and turn the unit on.

13. Both yellow (DS1) and green (DS2) LEDs on the MVME712M should be
lit (the LEDs can be seen through the opening in the front panel). If not
lit, then either a cabling problem exists, a fuse is blown, or both.

If there is a cabling problem, then correct it. If not, check the fuse on the
P2 adapter module and on the MVMExxxx module, and replace if nec­essary. The fuse on the P2 adapter module is for SCSI terminator pow­er. The fuse on the MVMExxxx is for Ethernet transceiver power. The
resistance of each fuse should be less than 1 ohm.

Installing the MVME712M Module and P2 Adapter Board

2-33

2

Figure 2-19. Configuration F -- External-Only SCSI Connections

J6

J2

P1

P2

J3

ENCLOSURE BOUNDARY

TERMINATORS

REMOVED

TERMINATORS

REMOVED

MVME712M

cb241 9301A

P2 ADAPTER

J3

J2

J9

J7

J8

J10

J4

J5

50-CONDUCTOR

CABLE

50-CONDUCTOR

CABLE

SCSI

DEVICE

50-CONDUCTOR

CABLE

TERMINATORS

INSTALLED

T

USER PROVIDED

PANEL

64-CONDUCTOR

CABLE

T

SCSI

DEVICE

TERMINATORS

INSTALLED

P2

MVME

xxxx

Processor VMEmodule

2-34

Preparing and Installing the Hardware

2

3

3-1

3Interconnect Signals

Introduction

This chapter provides the interconnection signals for the
MVME712M and P2 adapter board. The connectors described are
listed in Table 3-1.

All front panel connectors have metal shells and jack posts that are
electrically connected to the front panel. If the front panel is
electrically connected to the chassis ground, then the shells and jack
posts are connected to chassis ground. This allows shielded cable to
be used for effective reduction of EMI and EMC problems.

Table 3-1. P2 Adapter Board and MVME712M Connectors

P2 Adapter MVME712M Connectors

J2 J2 64-pin DIN connectors, always cabled

together

J3 J3 50-pin IDC connectors, cabled together in

most configurations

P2 96-pin DIN connector, connected to the

chassis backplane at the MVMExxxx

processor module’s P2 connector.
J4 50-pin connector for the SCSI port
J5 36-pin Centronics-type connector for the

printer port
J6 15-pin DB-15 connector for the Ethernet

interface
J7 - J10 25-pin DB-25 connectors for the serial ports

on the MVME712M front panel
J20 20-pin IDC connector for connection to a

chassis internal modem
J21 6-pin polarized connector for modem

power

3-2

Interconnect Signals

3

P2 Adapter Board

The following paragraphs provide the interconnection signals for
the connectors on the P2 adapter board.

P2 Connector

Connector P2 is a standard DIN 41612 triple-row, 96-pin connector.
Each pin connection, signal mnemonic, and signal characteristic for
the connector rows A and C are the same pin-for-pin as connector
P2 on the MVMExxxx processor module. Row B has only +5 Vdc
and ground connected on the P2 adapter.

J2 Connector

Connector J2 on the P2 adapter board and connector J2 on the
MVME712M are 64-pin DIN connectors that are the same pin-for­pin. Each pin connection, signal mnemonic, and signal
characteristic for these connectors is listed in Table 3-2.

Table 3-2. Connector J2 Interconnect Signals

Pin Number

Signal

Mnemonic

Signal Name and Description

A1 C- COLLISION - (input) (Ethernet) - part of a differential

pair.

A2 T- TRANSMIT - (output) (Ethernet) - part of a differential

pair.
A3 R- RECEIVE - (input) (Ethernet) - part of a differential pair.
A4 +12VF +12 Vdc power - fused on the MPU board.
A5 GND GROUND
A6 PRD01 DATA (bit 1) (Printer)
A7 PRD03 DATA (bit 3) (Printer)
A8 PRD05 DATA (bit 5) (Printer)
A9 PRD07 DATA (bit 7) (Printer)

P2 Adapter Board

3-3

3

A10 PRACK* DATA ACKNOWLEDGE (Printer) - a low level input

pulse indicating that the next character may be sent.

A11 PRBSY BUSY (Printer) - an input signal indicating that the

printer cannot receive data.

A12 PRSEL SELECTED (Printer) - an input signal indicating that

the printer is selected.

A13 PRFAULT* FAULT (Printer) - an input signal that indicates a

printer fault condition.

A14 TXD3 TRANSMIT DATA (Serial Port 3) - data to be

transmitted is furnished on this line to the modem from
the terminal.

A15 RXD3 RECEIVE DATA (Serial Port 3) - data that is

demodulated from the receive line is presented to the
terminal by the modem.

A16 RTS3 REQUEST TO SEND (Serial Port 3) - RTS is supplied by

the terminal to the modem when it is required to
transmit a message. With RTS off, the modem carrier
remains off. When RTS is turned on, the modem
immediately turns on the carrier.

A17 DTR3 DATA TERMINAL READY (Serial Port 3) - a signal

from the terminal to the modem indicating that the

terminal is ready to send or receive data.
A18-A20 GND GROUND
A21 CTS1/DCD1 CLEAR TO SEND (Serial Port 1) - CTS is a function

supplied to the terminal by the modem, and indicates

that it is permissible to begin transmission of a message.

When using a modem, CTS follows the off-to-on

transition of RTS after a time delay.
A22 TXD4 TRANSMIT DATA (Serial Port 4) - data to be

transmitted is furnished on this line to the modem from

the terminal.

Table 3-2. Connector J2 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

3-4

Interconnect Signals

3

A23 RXD4 RECEIVE DATA (Serial Port 4) - data that is

demodulated from the receive line is presented to the
terminal by the modem.

A24 RTS4 REQUEST TO SEND (Serial Port 4) - RTS is supplied by

the terminal to the modem when it is required to
transmit a message. With RTS off, the modem carrier
remains off. When RTS is turned on, the modem
immediately turns on the carrier.

A25 TRXC4 TRANSMIT CLOCK (Serial Port 4) - this line can be

configured to clock output data to the modem from the
terminal.

A26 CTS4 CLEAR TO SEND (Serial Port 4) - CTS is a function

supplied to the terminal by the modem, and indicates
that it is permissible to begin transmission of a message.
When using a modem, CTS follows the off-to-on
transition of RTS after a time delay.

A27 DCD4 DATA CARRIER DETECT (Serial Port 4) - sent by the

modem to the terminal to indicate that a valid carrier is
being received.

A28 RTXC4 RECEIVE CLOCK (Serial Port 4) - this line can be

configured to clock input data from a terminal to a
modem.

A29 TXD2 TRANSMIT DATA (Serial Port 2) - data to be

transmitted is furnished on this line to the modem from
the terminal.

A30 RXD2 RECEIVE DATA (Serial Port 2) - data that is

demodulated from the receive line is presented to the
terminal by the modem.

A31 RTS2 REQUEST TO SEND (Serial Port 2) - RTS is supplied by

the terminal to the modem when it is required to
transmit a message. With RTS off, the modem carrier
remains off. When RTS is turned on, the modem
immediately turns on the carrier.

Table 3-2. Connector J2 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

P2 Adapter Board

3-5

3

A32 DTR2 DATA TERMINAL READY (Serial Port 2) - a signal

from the terminal to the modem indicating that the

terminal is ready to send or receive data.
C1 C+ COLLISION + (input) (Ethernet) - a signal to indicate

that multiple stations are contending for access to the

transmission medium.
C2 T+ TRANSMIT + (output) (Ethernet) - this line is intended

to operate into terminated transmission lines.
C3 R+ RECEIVE + (input) (Ethernet) - a data input sourced by

the MAU.
C4 PRSTB* DATA STROBE (Printer) - an active low output pulse

used to clock data from the system to the printer.
C5 PRD00 DATA (bit 0) (Printer)
C6 PRD02 DATA (bit 2) (Printer)
C7 PRD04 DATA (bit 4) (Printer)
C8 PRD06 DATA (bit 6) (Printer)
C9,C10 GND GROUND
C11 PRPE PAPER EMPTY (Printer) - out of paper.
C12 INPRIME* INPUT PRIME (Printer) - an output signal that clears

the printer buffer and initializes the logic.
C13-C15 GND GROUND
C16 CTS3 CLEAR TO SEND (Serial Port 3) - CTS is a function

supplied to the terminal by the modem, and indicates

that it is permissible to begin transmission of a message.

When using a modem, CTS follows the off-to-on

transition of RTS after a time delay.
C17 DCD3 DATA CARRIER DETECT (Serial Port 3) - sent by the

modem to the terminal to indicate that a valid carrier is

being received.

Table 3-2. Connector J2 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

3-6

Interconnect Signals

3

C18 TXD1 TRANSMIT DATA (Serial Port 1) - data to be

transmitted is furnished on this line to the modem from
the terminal.

C19 RXD1 RECEIVE DATA (Serial Port 1) - data that is

demodulated from the receive line is presented to the
terminal by the modem.

C20 RTS1 REQUEST TO SEND (Serial Port 1) - RTS is supplied by

the terminal to the modem when it is required to
transmit a message. With RTS off, the modem carrier
remains off. When RTS is turned on, the modem

immediately turns on the carrier.
C21-C25 GND GROUND
C26 DTR4 DATA TERMINAL READY (Serial Port 4) - a signal

from the terminal to the modem indicating that the

terminal is ready to send or receive data.
C27-C30 GND GROUND
C31 CTS2 CLEAR TO SEND (Serial Port 2) - CTS is a function

supplied to the terminal by the modem, and indicates

that it is permissible to begin transmission of a message.

When using a modem, CTS follows the off-to-on

transition of RTS after a time delay.
C32 DCD2 DATA CARRIER DETECT (Serial Port 2) - sent by the

modem to the terminal to indicate that a valid carrier is

being received.

Table 3-2. Connector J2 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

P2 Adapter Board

3-7

3

J3 Connector

Connector J3 on the P2 adapter board and connectors J3 and J4 on
the MVME712M module are 50-pin connectors that are the same
pin-for-pin. Each pin connection, signal mnemonic, and signal
characteristic for these connectors is listed in Table 3-3.

Table 3-3. Connector J3 Interconnect Signals

Pin Number

Signal

Mnemonic

Signal Name and Description

1 GND GROUND
2 DB00* DATA bus (bit 0) - least significant bit and the lowest

priority during the arbitration phase.
3 GND GROUND
4 DB01* DATA bus (bit 1)
5 GND GROUND
6 DB02* DATA bus (bit 2)
7 GND GROUND
8 DB03* DATA bus (bit 3)
9 GND GROUND
10 DB04* DATA bus (bit 4)
11 GND GROUND
12 DB05* DATA bus (bit 5)
13 GND GROUND
14 DB06* DATA bus (bit 6)
15 GND GROUND
16 DB07* DATA bus (bit 7) - most significant bit and the highest

priority during the arbitration phase.
17 GND GROUND
18 DBP* DATA bus (parity) - data parity is odd. Use of parity is a

system option. Parity is not valid during the arbitration

phase.

3-8

Interconnect Signals

3

19-24 GND GROUND
25 Not used.
26 TERMPWR TERMINATOR POWER (fused on the P2 adapter)
27-31 GND GROUND
32 ATN* ATTENTION - signal driven by the initiator. Indicates

the attention condition.
33-35 GND GROUND
36 BSY* BUS BUSY - OR-tied signal that indicates that the bus is

being used.
37 GND GROUND
38 ACK* ACKNOWLEDGE - signal driven by an initiator to

indicate an acknowledgment for a REQ/ACK data

transfer handshake.
39 GND GROUND
40 RST* RESET - OR-tied signal that indicates the RESET

condition.
41 GND GROUND
42 MSG* MESSAGE - signal driven by the target during the

message phase.
43 GND GROUND
44 SEL* SELECT - signal used by an initiator to select a target or

by a target to reselect an initiator.
45 GND GROUND
46 D/C* DATA/COMMAND - signal driven by the target. It

indicates whether command or data information is on

the data bus. True (low) indicates command.
47 GND GROUND
48 REQ* REQUEST - signal driven by a target to indicate a

request for a REQ/ACK data transfer handshake.
49 GND GROUND

Table 3-3. Connector J3 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

P2 Adapter Board

3-9

3

50 O/I* OUTPUT/INPUT - signal driven by a target which

controls the direction of data movement on the bus.
True (low) indicates input to the initiator. False (high)
indicates output from the initiator. This signal is also
used to distinguish between selection and reselection
phases.

Table 3-3. Connector J3 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

3-10

Interconnect Signals

3

MVME712M Transition Module

The following paragraphs provide the interconnection signals for
the connectors on the MVME712M transition module.

J2 Connector

Connector J2 on the MVME712M and connector J2 on the P2
adapter board are 64-pin DIN connectors that are the same pin-for­pin. Each pin connection, signal mnemonic, and signal
characteristic for these connectors is listed in Table 3-4.

Table 3-4. Connector J2 Interconnect Signals

Pin Number

Signal

Mnemonic

Signal Name and Description

A1 C- COLLISION - (input) (Ethernet) - part of a differential

pair.
A2 T- TRANSMIT - (output) (Ethernet) - part of a differential

pair.
A3 R- RECEIVE - (input) (Ethernet) - part of a differential pair.
A4 +12VF +12 Vdc power - fused on the MPU board.
A5 GND GROUND
A6 PRD01 DATA (bit 1) (Printer)
A7 PRD03 DATA (bit 3) (Printer)
A8 PRD05 DATA (bit 5) (Printer)
A9 PRD07 DATA (bit 7) (Printer)
A10 PRACK* DATA ACKNOWLEDGE (Printer) - a low level input

pulse indicating that the next character may be sent.
A11 PRBSY BUSY (Printer) - an input signal indicating that the

printer cannot receive data.
A12 PRSEL SELECTED (Printer) - an input signal indicating that

the printer is selected.
A13 PRFAULT* FAULT (Printer) - an input signal that indicates a

printer fault condition.

MVME712M Transition Module

3-11

3

A14 TXD3 TRANSMIT DATA (Serial Port 3) - data to be

transmitted is furnished on this line to the modem from
the terminal.

A15 RXD3 RECEIVE DATA (Serial Port 3) - data that is

demodulated from the receive line is presented to the
terminal by the modem.

A16 RTS3 REQUEST TO SEND (Serial Port 3) - RTS is supplied by

the terminal to the modem when it is required to
transmit a message. With RTS off, the modem carrier
remains off. When RTS is turned on, the modem
immediately turns on the carrier.

A17 DTR3 DATA TERMINAL READY (Serial Port 3) - a signal

from the terminal to the modem indicating that the

terminal is ready to send or receive data.
A18-A20 GND GROUND
A21 CTS1/DCD1 CLEAR TO SEND (Serial Port 1) - CTS is a function

supplied to the terminal by the modem, and indicates

that it is permissible to begin transmission of a message.

When using a modem, CTS follows the off-to-on

transition of RTS after a time delay.
A22 TXD4 TRANSMIT DATA (Serial Port 4) - data to be

transmitted is furnished on this line to the modem from

the terminal.
A23 RXD4 RECEIVE DATA (Serial Port 4) - data that is

demodulated from the receive line is presented to the

terminal by the modem.
A24 RTS4 REQUEST TO SEND (Serial Port 4) - RTS is supplied by

the terminal to the modem when it is required to

transmit a message. With RTS off, the modem carrier

remains off. When RTS is turned on, the modem

immediately turns on the carrier.
A25 TRXC4 TRANSMIT CLOCK (Serial Port 4) - this line can be

configured to clock output data to the modem from the

terminal.

Table 3-4. Connector J2 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

3-12

Interconnect Signals

3

A26 CTS4 CLEAR TO SEND (Serial Port 4) - CTS is a function

supplied to the terminal by the modem, and indicates
that it is permissible to begin transmission of a message.
When using a modem, CTS follows the off-to-on
transition of RTS after a time delay.

A27 DCD4 DATA CARRIER DETECT (Serial Port 4) - sent by the

modem to the terminal to indicate that a valid carrier is
being received.

A28 RTXC4 RECEIVE CLOCK (Serial Port 4) - this line can be

configured to clock input data from a terminal to a
modem.

A29 TXD2 TRANSMIT DATA (Serial Port 2) - data to be

transmitted is furnished on this line to the modem from
the terminal.

A30 RXD2 RECEIVE DATA (Serial Port 2) - data that is

demodulated from the receive line is presented to the
terminal by the modem.

A31 RTS2 REQUEST TO SEND (Serial Port 2) - RTS is supplied by

the terminal to the modem when it is required to
transmit a message. With RTS off, the modem carrier
remains off. When RTS is turned on, the modem
immediately turns on the carrier.

A32 DTR2 DATA TERMINAL READY (Serial Port 2) - a signal

from the terminal to the modem indicating that the
terminal is ready to send or receive data.

C1 C+ COLLISION + (input) (Ethernet) - a signal to indicate

that multiple stations are contending for access to the
transmission medium.

C2 T+ TRANSMIT + (output) (Ethernet) - this line is intended

to operate into terminated transmission lines.

C3 R+ RECEIVE + (input) (Ethernet) - a data input sourced by

the MAU.

Table 3-4. Connector J2 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

MVME712M Transition Module

3-13

3

C4 PRSTB* DATA STROBE (Printer) - an active low output pulse

used to clock data from the system to the printer.
C5 PRD00 DATA (bit 0) (Printer)
C6 PRD02 DATA (bit 2) (Printer)
C7 PRD04 DATA (bit 4) (Printer)
C8 PRD06 DATA (bit 6) (Printer)
C9,C10 GND GROUND
C11 PRPE PAPER EMPTY (Printer) - out of paper.
C12 INPRIME* INPUT PRIME (Printer) - an output signal that clears

the printer buffer and initializes the logic.
C13-C15 GND GROUND
C16 CTS3 CLEAR TO SEND (Serial Port 3) - CTS is a function

supplied to the terminal by the modem, and indicates

that it is permissible to begin transmission of a message.

When using a modem, CTS follows the off-to-on

transition of RTS after a time delay.
C17 DCD3 DATA CARRIER DETECT (Serial Port 3) - sent by the

modem to the terminal to indicate that a valid carrier is

being received.
C18 TXD1 TRANSMIT DATA (Serial Port 1) - data to be

transmitted is furnished on this line to the modem from

the terminal.
C19 RXD1 RECEIVE DATA (Serial Port 1) - data that is

demodulated from the receive line is presented to the

terminal by the modem.
C20 RTS1 REQUEST TO SEND (Serial Port 1) - RTS is supplied by

the terminal to the modem when it is required to

transmit a message. With RTS off, the modem carrier

remains off. When RTS is turned on, the modem

immediately turns on the carrier.
C21-C25 GND GROUND

Table 3-4. Connector J2 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

3-14

Interconnect Signals

3

J3 and J4 Connectors

Connectors J3 and J4 on the MVME712M module and connector J3
on the P2 adapter board are 50-pin connectors that are the same pin­for-pin. Each pin connection, signal mnemonic, and signal
characteristic for these connectors is listed in Table 3-5.

C26 DTR4 DATA TERMINAL READY (Serial Port 4) - a signal

from the terminal to the modem indicating that the

terminal is ready to send or receive data.
C27-C30 GND GROUND
C31 CTS2 CLEAR TO SEND (Serial Port 2) - CTS is a function

supplied to the terminal by the modem, and indicates

that it is permissible to begin transmission of a message.

When using a modem, CTS follows the off-to-on

transition of RTS after a time delay.
C32 DCD2 DATA CARRIER DETECT (Serial Port 2) - sent by the

modem to the terminal to indicate that a valid carrier is

being received.

Table 3-5. Connectors J3 and J4 Interconnect Signals

Pin Number

Signal

Mnemonic

Signal Name and Description

1 GND GROUND
2 DB00* DATA bus (bit 0) - least significant bit and the lowest

priority during the arbitration phase.
3 GND GROUND
4 DB01* DATA bus (bit 1)
5 GND GROUND
6 DB02* DATA bus (bit 2)

Table 3-4. Connector J2 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

MVME712M Transition Module

3-15

3

7 GND GROUND
8 DB03* DATA bus (bit 3)
9 GND GROUND
10 DB04* DATA bus (bit 4)
11 GND GROUND
12 DB05* DATA bus (bit 5)
13 GND GROUND
14 DB06* DATA bus (bit 6)
15 GND GROUND
16 DB07* DATA bus (bit 7) - most significant bit and the highest

priority during the arbitration phase.
17 GND GROUND
18 DBP* DATA bus (parity) - data parity is odd. Use of parity is a

system option. Parity is not valid during the arbitration

phase.
19-24 GND GROUND
25 Not used.
26 TERMPWR TERMINATOR POWER (fused on the P2 adapter)
27-31 GND GROUND
32 ATN* ATTENTION - signal driven by the initiator. Indicates

the attention condition.
33-35 GND GROUND
36 BSY* BUS BUSY - OR-tied signal that indicates that the bus is

being used.
37 GND GROUND
38 ACK* ACKNOWLEDGE - signal driven by an initiator to

indicate an acknowledgment for a REQ/ACK data

transfer handshake.
39 GND GROUND

Table 3-5. Connectors J3 and J4 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

3-16

Interconnect Signals

3

40 RST* RESET - OR-tied signal that indicates the RESET

condition.
41 GND GROUND
42 MSG* MESSAGE - signal driven by the target during the

message phase.
43 GND GROUND
44 SEL* SELECT - signal used by an initiator to select a target or

by a target to reselect an initiator.
45 GND GROUND
46 D/C* DATA/COMMAND - signal driven by the target. It

indicates whether command or data information is on

the data bus. True (low) indicates command.
47 GND GROUND
48 REQ* REQUEST - signal driven by a target to indicate a

request for a REQ/ACK data transfer handshake.
49 GND GROUND
50 O/I* OUTPUT/INPUT - signal driven by a target which

controls the direction of data movement on the bus.

True (low) indicates input to the initiator. False (high)

indicates output from the initiator. This signal is also

used to distinguish between selection and reselection

phases.

Table 3-5. Connectors J3 and J4 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

MVME712M Transition Module

3-17

3

SCSI INTERFACE Connector

The SCSI port is the connector labeled SCSI INTERFACE on the front
panel of the MVME712M, connected to connector J4 on the top of
the board. Each pin connection, signal mnemonic, and signal
characteristic for the SCSI port connector is listed in Table 3-6.

Table 3-6. Connector SCSI INTERFACE Interconnect Signals

Pin Number

Signal

Mnemonic

Signal Name and Description

1-25 GND GROUND
26 DB00* DATA bus (bit 0) - least significant bit and the lowest

priority during the arbitration phase.
27 DB01* DATA bus (bit 1)
28 DB02* DATA bus (bit 2)
29 DB03* DATA bus (bit 3)
30 DB04* DATA bus (bit 4)
31 DB05* DATA bus (bit 5)
32 DB06* DATA bus (bit 6)
33 DB07* DATA bus (bit 7) - most significant bit and the highest

priority during the arbitration phase.
34 DBP* DATA bus (parity) - data parity is odd. Use of parity is a

system option. Parity is not valid during the arbitration

phase.
35-37 GND GROUND
38 TERMPWR TERMINATOR POWER (fused on the P2 adapter)
39,40 GND GROUND
41 ATN* ATTENTION - signal driven by the initiator. Indicates

the attention condition.
42 GND GROUND
43 BSY* BUS BUSY - OR-tied signal that indicates that the bus is

being used.

3-18

Interconnect Signals

3

J5 Connector

Connector J5 is the port labeled PRINTER on the MVME712M front
panel. This is a Centronics type parallel port. Each pin connection,
signal mnemonic, and signal characteristic for the printer port
connector is listed in Table 3-7.

44 ACK* ACKNOWLEDGE - signal driven by an initiator to

indicate an acknowledgment for a REQ/ACK data
transfer handshake.

45 RST* RESET - OR-tied signal that indicates the RESET

condition.

46 MSG* MESSAGE - signal driven by the target during the

message phase.

47 SEL* SELECT - signal used by an initiator to select a target or

by a target to reselect an initiator.

48 D/C* DATA/COMMAND - signal driven by the target. It

indicates whether command or data information is on
the data bus. True (low) indicates command.

49 REQ* REQUEST - signal driven by a target to indicate a

request for a REQ/ACK data transfer handshake.

50 O/I* OUTPUT/INPUT - signal driven by a target which

controls the direction of data movement on the bus.
True (low) indicates input to the initiator. False (high)
indicates output from the initiator. This signal is also
used to distinguish between selection and reselection
phases.

Table 3-6. Connector SCSI INTERFACE Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

MVME712M Transition Module

3-19

3

Table 3-7. Connector J5 Interconnect Signals

Pin Number

Signal

Mnemonic

Signal Name and Description

1 PRSTB* DATA STROBE - an active low output pulse used to

clock data from the system to the printer.
2 PRD0 DATA (bit 0)
3 PRD1 DATA (bit 1)
4 PRD2 DATA (bit 2)
5 PRD3 DATA (bit 3)
6 PRD4 DATA (bit 4)
7 PRD5 DATA (bit 5)
8 PRD6 DATA (bit 6)
9 PRD7 DATA (bit 7)
10 PRACK* DATA ACKNOWLEDGE - a low level input pulse

indicating that the next character may be sent.
11 PRBSY BUSY - an input signal indicating that the printer

cannot receive data.
12 PRPE PAPER EMPTY - out of paper.
13 PRSEL SELECTED - an input signal indicating that the

printer is selected.
14,15 Not used.
16 GND GROUND
17,18 Not used.
19-30 GND GROUND
31 INPRIME* INPUT PRIME - an output signal that clears the

printer buffer and initializes the logic.
32 PRFAULT* FAULT - an input signal that indicates a printer

fault condition.
33-36 Not used.

3-20

Interconnect Signals

3

J6 Connector

Connector J6 is the port labeledETHERNET on the MVME712M front
panel. Each pin connection, signal mnemonic, and signal
characteristic for the Ethernet port connector is listed in Table 3-8.

Table 3-8. Connector J6 Interconnect Signals

Pin Number

Signal

Mnemonic

Signal Name and Description

1 Not used.
2 C+ COLLISION + (input) - a signal to indicate that multiple

stations are contending for access to the transmission
medium.

3 T+ TRANSMIT + (output) - this line is intended to operate

into terminated transmission lines.
4 Not used.
5 R+ RECEIVE + (input) - a data input sourced by the MAU.
6 GND GROUND
7,8 Not used.
9 C- COLLISION - (input) - part of a differential pair.
10 T- TRANSMIT - (output) - part of a differential

pair.
11 Not used.
12 R- RECEIVE - (input) - part of a differential pair.
13 +12VF +12 Vdc power - fused on the MPU.
14, 15 Not used.

MVME712M Transition Module

3-21

3

J7 - J10 Connectors

Connectors J7 through J10 are EIA-232-D 25-pin front panel
connectors, labeled

SERIAL PORT1/CONSOLE, SERIAL PORT2/TTY01,

SERIAL PORT 3, and SERIAL PORT 4. Each pin connection, signal

mnemonic, and signal characteristic for the serial port connectors is
listed in Table 3-9.

Table 3-9. Connectors J7 - J10 Interconnect Signals

Pin Number

Signal

Mnemonic

Signal Name and Description

1 Not used.
2 ETXD TRANSMIT DATA - data to be transmitted is furnished

on this line to the modem from the terminal.

3 ERXD RECEIVE DATA - data that is demodulated from the

receive line is presented to the terminal by the modem.
4 RTS Not used.
5 ECTS CLEAR TO SEND - CTS is a function supplied to the

terminal by the modem, and indicates that it is

permissible to begin transmission of a message. When

using a modem, CTS follows the off-to-on transition of

RTS after a time delay.
6 EDSR DATA SET READY - DSR is a function supplied by the

modem to the terminal to indicate that the modem is

ready to transmit data.
7 GND SIGNAL GROUND - Common return line connected to

the MVMExxxx ground plane. Not connected to chassis

ground.
8 EDCD DATA CARRIER DETECT - Sent by the modem to the

terminal to indicate that a valid carrier is being

received. Not used by port 1 (J7).
9-14 Not used.
15 ERTXC4 TRANSMIT CLOCK (port 4 only) - This line can be

configured to clock output data to the modem from the

terminal.

3-22

Interconnect Signals

3

J20 Connector

Connector J20 is the internal modem port. Each pin connection,
signal mnemonic, and signal characteristic for the modem port
connector is listed in Table 3-10.

16 Not used.
17 ERRXC4 RECEIVE CLOCK (port 4 only) - This line can be

configured to clock input data from a terminal to a

modem.
18-19 Not used.
20 EDTR DA TA TERMINAL READY - A signal from the terminal

to the modem indicating that the terminal is ready to

send or receive data.
21-23 Not used.
24 ETTXC4 TRANSMIT CLOCK (port 4 only) - This line can be

configured to clock output data to the modem from the

terminal.
25 Not used.

Table 3-10. Connector J20 Interconnect Signals

Pin Number

Signal

Mnemonic

Signal Name and Description

1 CTS2 CLEAR TO SEND - CTS is a function supplied to the

terminal by the modem, and indicates that it is

permissible to begin transmission of a message. When

using a modem, CTS follows the off-to-on transition of

RTS after a time delay.
2 TXD2 TRANSMIT DATA - data to be transmitted is

furnished on this line to the modem from the terminal.

Table 3-9. Connectors J7 - J10 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

MVME712M Transition Module

3-23

3

J21 Connector

Connector J21 is the backplane modem power connector. Each pin
connection, signal mnemonic, and signal characteristic for the
modem power connector is listed in Table 3-11.

3 DCD2 DATA CARRIER DETECT - Sent by the modem to the

terminal to indicate that a valid carrier is being
received.

4 RXD2 RECEIVE DATA - data that is demodulated from the

receive line is presented to the terminal by the modem.
5-10 Not used.
11 DTR2 DATA TERMINAL READY - A signal from the terminal

to the modem indicating that the terminal is ready to

send or receive data.
12 -12VMODEM -12 Vdc Power - used by the internal modem.
13 +5VMODEM +5 Vdc Power - used by the internal modem.
14-15 GND GROUND
16 +12VMODEM +12 Vdc Power - used by the internal modem.
17-20 Not used.

Table 3-11. Connector J21 Interconnect Signals

Pin Number

Signal

Mnemonic

Signal Name and Description

1 +5VMODEM +5 Vdc Power - supplied by the backplane and routed

to J20.
2 +12VMODEM +12 Vdc Power - supplied by the backplane and routed

to J20.

Table 3-10. Connector J20 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

3-24

Interconnect Signals

3

3 -12VMODEM -12 Vdc Power - supplied by the backplane and routed

to J20.
4 GND GROUND
5,6 Not used.

Table 3-11. Connector J21 Interconnect Signals (Continued)

Pin Number

Signal

Mnemonic

Signal Name and Description

Index

IN-1

A

airflow required 1-4
antistatic wrist strap 2-16

B

bus interface 1-2

C

cables 2-13
cautions 2-1, 2-16, 2-17
characteristics, physical 1-3
chassis ground 3-1
clock configuration 2-2
clock lines, configuration 2-12
configuration

Serial Port 1 DCE 2-4
Serial Port 1 DTE 2-5
Serial Port 2 DCE 2-6
Serial Port 2 DTE 2-7
Serial Port 3 DCE 2-8
Serial Port 3 DTE 2-9
Serial Port 4 clock lines 2-12
Serial Port 4 DCE 2-10

Serial Port 4 DTE 2-11
configuration, DCE/DTE 2-2
configuration, jumpers 2-2
connector locations

MVME712M 2-3

P2 adapter 2-13
connectors 2-13, 3-1
cooling requirements 1-4

D

depth 1-3
description, general 1-1
documentation, related 4
DTE/DCE configuration 2-2
DTE/DCE configuration select headers 2-2

E

EIA-232-D port 1-2

Electrostatic Discharge (ESD) 1-2, 2-16
EMI and EMC reduction 3-1
ESD (see Electrostatic Discharge) 1-2
ESD, precautions 2-16
Ethernet signal 1-2
external SCSI devices 2-30, 2-32

F

FCC compliance 1-5
features

P2 adapter board 1-2
transition module 1-2

fuse, resistance of 2-18, 2-20, 2-22, 2-24, 2-26,

2-28, 2-30, 2-32

G

grounding 1-5, 3-1

H

header locations

MVME712M 2-3

P2 adapter 2-13
headers, configurable 2-2
height 1-3
humidity, relative 1-3

I

I/O ports 1-3
installation instructions 2-1, 2-16
installing the MVME712M and P2 adapter 2-16
interconnect signals 3-1, 3-2

ETHERNET connector (MVME712M) 3-20

J2 connector (MVME712M) 3-10

J2 connector (P2 adapter) 3-2

J20 connector (MVME712M) 3-22

J21 connector (MVME712M) 3-23

J3 and J4 (MVME712M) 3-14

J3 connector (P2 adapter) 3-7

J5 connector (MVME712M) 3-18

J6 connector (MVME712M) 3-20

J7-J10 connectors (MVME712M) 3-21

Index

IN-2

I
N
D
E
X

modem, backplane power

(MVME712M) 3-23
modem, internal (MVME712M) 3-22
P2 adapter boardP2 adapter board 3-2
P2 connector (P2 adapter) 3-2
PRINTER connector (MVME712M) 3-18
SCSI INTERFACE connector

(MVME712M) 3-17

internal and external SCSI devices 2-24, 2-26,

2-28

internal SCSI devices 2-18, 2-20, 2-22

J

J1, J11 jumpers 2-4, 2-5
J13, J14 jumpers 2-8, 2-9
J15 jumpers 2-12
J16, J17 jumpers 2-6, 2-7
J18, J19 jumpers 2-10, 2-11
J2 connector signals (MVME712M) 3-10
J2 connector signals (P2 adapter) 3-2
J20 connector signals (MVME712M) 3-22
J21 connector signals (MVME712M) 3-23
J3 connector signals (P2 adapter) 3-7
J3, J4 connector signals (MVME712M) 3-14
J5 connector signals (MVME712M) 3-18
J6 connector signals (MVME712M) 3-20
J7-J10 connector signals (MVME712M) 3-21
jumper configurations, factory 2-1

L

LEDs, green and yellow 1-2
LEDs, unlit 2-18, 2-20, 2-22, 2-24, 2-26, 2-28,

2-30, 2-32

M

modem connection 1-2
modem port (MVME712M) 3-22
modem power connector (MVME712M) 3-23
MVME712M

configurations 2-17
connectors 3-1
description 1-1
features 1-2
installing 2-16
interconnect signals 3-10
preparing 2-1

O

operating temperature 1-3

P

P2 adapter board 1-2

connector locations 2-13
connectors 3-1
description 1-1
features 1-2
installing 2-16

preparing 2-13
P2 connector signals (P2 adapter) 3-2
physical characteristics 1-3
power requirements 1-3
preparation, hardware 2-1
preparing the MVME712M 2-1
preparing the P2 adapter board 2-13
printer port 1-2, 1-3

R

Radio Frequency Interference (RFI) 1-2
relative humidity 1-3
RF emission 1-5
RFI (see Radio Frequency Interference) 1-2

S

SCSI (see Small Computer Systems

Interface) 1-2

SCSI devices

external 2-30, 2-32

internal 2-18, 2-20, 2-22

internal and external 2-24, 2-26, 2-28
SCSI INTERFACE connector signals

(MVME712M) 3-17
SCSI termination 2-12
SCSI terminators 2-13, 2-18, 2-20, 2-22, 2-24,

2-26, 2-28, 2-30, 2-32
Serial Port 1 DCE configuration 2-3, 2-4
Serial Port 1 DTE configuration 2-5
Serial Port 2 DCE configuration 2-6
Serial Port 2 DTE configuration 2-7
Serial Port 3 DCE configuration 2-8
Serial Port 3 DTE configuration 2-9
Serial Port 4 clock 2-2
Serial Port 4 clock configuration select 2-12
Serial Port 4 DCE configuration 2-10

Index

IN-3

I
N
D

E
X

Serial Port 4 DTE configuration 2-11
serial ports 1-3
serial ports, EIA-232-D 1-2
shielded cables 1-5
signals, interconnection 3-1
Small Computer Systems Interface (SCSI) 1-2
specifications 1-3
static protection 2-16
storage temperature 1-3

T

temperature

operating 1-3
qualification 1-4
range 1-4

storage 1-3
terminator power 1-2
terminators, SCSI 1-2, 2-12, 2-13, 2-18, 2-20,

2-22, 2-24, 2-26, 2-28, 2-30, 2-32
thickness 1-3
transceiver power 1-2

U

unpacking the hardware 2-1

W

warning 2-17
wrist strap, antistatic 2-16

Index

IN-4

I
N
D
E
X