Data General AViiON Series Operator's manual

Setting Up and Installing
VMEbus Options in
AViiONSystems
014–001867–03
Customer Documentation
P R O D U C T L I N E


Setting Up and Installing VMEbus
Options in AViiONSystems
014–001867–03
Copyright Data General Corporation, 1990, 1991, 1993
All Rights Reserved
Printed in the United States of America
Rev. 03, March 1993
Ordering No. 014–001867

Notice
DATA GENERAL CORPORATION (DGC) HAS PREPARED THIS DOCUMENT FOR USE BY DGC PERSONNEL,
CUSTOMERS, AND PROSPECTIVE CUSTOMERS. THE INFORMATION CONTAINED HEREIN SHALL NOT BE
REPRODUCED IN WHOLE OR IN PART WITHOUT DGC’S PRIOR WRITTEN APPROVAL.
DGCreservestherighttomakechangesinspecificationsandotherinformationcontainedinthisdocumentwithoutprior
notice, and the reader should in all cases consult DGC to determine whether any such changes have been made.
THE TERMS AND CONDITIONS GOVERNING THE SALE OF DGC HARDWARE PRODUCTS AND THE
LICENSING OF DGC SOFTWARE CONSIST SOLELY OF THOSE SET FORTH IN THE WRITTEN CONTRACTS
BETWEEN DGC AND ITS CUSTOMERS. NO REPRESENTATION OR OTHER AFFIRMATION OF FACT
CONTAINEDINTHISDOCUMENTINCLUDINGBUTNOTLIMITEDTOSTATEMENTSREGARDINGCAPACITY,
RESPONSE–TIME PERFORMANCE, SUITABILITY FOR USE OR PERFORMANCE OF PRODUCTS DESCRIBED
HEREIN SHALL BE DEEMED TO BE A WARRANTY BY DGC FOR ANY PURPOSE, OR GIVE RISE TO ANY
LIABILITY OF DGC WHATSOEVER.
IN NO EVENT SHALL DGC BE LIABLE FOR ANY INCIDENTAL, INDIRECT, SPECIAL OR CONSEQUENTIAL
DAMAGESWHATSOEVER(INCLUDINGBUTNOTLIMITEDTOLOSTPROFITS)ARISINGOUTOFOR RELATED
TOTHISDOCUMENTORTHEINFORMATIONCONTAINEDINIT,EVENIFDGCHASBEENADVISED,KNEWOR
SHOULD HAVE KNOWN OF THE POSSIBILITY OF SUCH DAMAGES.
AV Object Office,AV Office,AViiON,CEO,CLARiiON,DASHER,DATAPREP,DESKTOP GENERATION,
ECLIPSE,ECLIPSE MV/4000,ECLIPSE MV/6000,ECLIPSE MV/8000,GENAP,INFOS,microNOVA,NOVA,
OpenMAC,PRESENT,PROXI,SWAT,TRENDVIEW, and WALKABOUT are U.S. registered trademarks of
Data General Corporation; and AOSMAGIC,AOS/VSMAGIC,AROSE/PC,ArrayGUIde, ArrayPlus,AV Image,
AV Imagizer Toolkit,AV SysScope,BaseLink,BusiGEN,BusiPEN,BusiTEXT,CEO Connection,
CEO Connection/LAN,CEO Drawing Board,CEO DXA,CEO Light,CEO MAILI,CEO Object Office,
CEO PXA,CEO Wordview,CEOwrite,COBOL/SMART,COMPUCALC,CSMAGIC,DATA GENERAL/One,
DESKTOP/UX,DG/500,DG/AROSE,DGConnect,DG/DBUS,DG/Fontstyles,DG/GATE,DG/GEO,DG/HEO,
DG/L,DG/LIBRARY,DG/UX,DG/UX CLARiiON Manager, DG/UX Manager,DG/ViiSION,DG/XAP,
ECLIPSE MV/1000,ECLIPSE MV/1400,ECLIPSE MV/2000,ECLIPSE MV/2500,ECLIPSE MV/3200,
ECLIPSE MV/3500,ECLIPSE MV/3600,ECLIPSE MV/5000,ECLIPSE MV/5500,ECLIPSE MV/5600,
ECLIPSE MV/7800,ECLIPSE MV/9300,ECLIPSE MV/9500,ECLIPSE MV/9600,ECLIPSE MV/9800,
ECLIPSE MV/10000,ECLIPSE MV/15000,ECLIPSE MV/18000,ECLIPSE MV/20000,ECLIPSE MV/25000,
ECLIPSE MV/30000,ECLIPSE MV/35000,ECLIPSE MV/40000,ECLIPSE MV/60000,FORMA–TEXT,
GATEKEEPER,GDC/1000,GDC/2400, GuardWare,Intellibook,microECLIPSE,microMV,MV/UX,OpStar,
PC Liaison,RASS,REV–UP,SLATE,SPARE MAIL,SUPPORT MANAGER,TEO,TEO/3D,TEO/Electronics,
TURBO/4,UNITE, and XODIAC are trademarks of Data General Corporation. AV/Alert is a service mark of
Data General Corporation.
ST is a U.S. registered trademark of American Telephone and Telegraph Company.
UNIX is a U.S. registered trademark of Unix Systems Laboratories, Inc.
Setting Up and Installing VMEbus Options in AViiONSystems
014–001867–03
Revision History:
Original Release – March 1990
First Revision – July 1990
Second Revision – September 1991
Third Revision – March 1993
A vertical bar in the margin of a page indicates substantive technical change from the
previous revision. The exception is Appendix E, which contains entirely new material.

NOTE
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference in
which case the user will be required to correct the interference at his own expense. Testing was done with shielded
cables. Therefore, in order to comply with the FCC regulations, you must use shielded cables with your installation.
WARNING
Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the
Radio Interference Regulations of the Canadian Department of Communications.
Le présent appareil numérique n’ émet pas de bruits radioélectriques dépassant les limites applicables aux appareils
numériques de la classe A prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des
Communications du Canada.

v
014–001867
Preface
This manual contains information that you will need to add VMEbus-related
hardware to your AViiONsystem. It supplements your system’s setting up,
expanding, and maintaining manuals that list the VME options supported by your
particular model. You should also refer to your most recent Technical Notices,
software updates, and Release Notices for current information.
The first three chapters in this manual describe how to add and replace optional
controllers and adapters that communicate with your system’s central processing
unit over a VMEbus. Chapter 4 describes how to connect devices to the VME
controllers and adapters supported by Data General—most readers will need this
chapter alone.
WARNING: Unqualified personnel attempting to remove, install, or
service internal components or options in AViiON 5000, 6000,
7000, and 8000 series systems risk both personal injury and
damage to the system. Data General Corporation supports
the maintenance and expansion of these systems by qualified
Data General personnel only. Service by other than
Data General personnel may void product warranties. For
more information regarding Data General warranties, refer to
your Data General sales and field engineering contracts.
Organization of This Manual
This manual is organized as follows:
Chapter 1 Provides configuration rules and guidelines. It also describes
supported boards and how to avoid electrostatic discharge (ESD)
damage to your equipment. You should read this chapter carefully
before you begin to replace or add VME options.
Chapter 2 Describes how to install and remove jumpers and change switch
settings on printed circuit boards. Provides tables of settings for
AViiON computer systems running the DG/UXoperating system.
Chapter 3 Describes how to install or remove a VME board in an AViiON
computer.
Chapter 4 Describes how to connect external devices such as terminals,
printers, modems, and LAN transceivers to your VME controller(s).
Appendix A Shows the pin numbers and lists the VMEbus signals for the J1
and J2 backplane connectors.

Preface
vi 014–001867
Appendix B Provides forms for recording the computer’s card cage
configuration, calculating configuration power requirements, and
recording device line information.
Appendix C Provides Data General part and model numbers for cables that
connect external devices to VME option boards. Describes pin
assignments for option board connector signals.
Appendix D Provides special instructions for installing and removing
model-specific VME hardware. Describes how to mount VAC/16
junction boxes to an office wall or other surface, and how to attach
the Model 7431 air dam to the board.
Appendix E Provides guidelines for assigning VME data bus and interrupt
priorities within the Data General AViiON systems environment.
Primarily, the discussion centers around the VME Data Transfer
Bus (DTB) and interrupt priority architecture and the demands
that various types of VME controllers place on bus and system
resources. This information is very technical and intended for
properly trained users only.
Related Documents
This manual refers directly to the documentation listed in this section.
AViiON Systems Documentation
Setting Up, Starting, Expanding, and Maintaining AViiONComputer Systems:
400, 3000, and 4000 Series (014–002083) and
Setting Up, Starting, Expanding, and Maintaining AViiON530 and 4600 Series
Computers (014–002091)
Describe how to unpack and connect system components and optional devices.
Explain how to power the computer systems up and down. Describe how to add
or replace mass-storage devices, memory modules, and option boards, and how to
remove and replace the power supply, fan assembly, and system board. Explain
how to use the System Control Monitor (SCM) commands and menus to boot
software, control the system environment, and debug programs.
Testing and Troubleshooting AViiONComputers: AV/Alert and the AViiON
Diagnostic Tool Set (014–002183)
Describes the diagnostic features available for AViiONcomputers. It provides
steps necessary to enable and operate the AV/Alert system, and describes how to
use the DG/UX–based Service Manager software. The manual also describes
how to use the utilities and tests available with the stand–alone AViiON System
Diagnostics.
VME Options Documentation
The VMEbus Specification (Motorola document number HB212)
Defines the mechanical and electrical specifications, protocols, and terminology
of the VMEbus (Versa Modula Europa bus, or Versa Module European bus).

Preface
vii
014–001867
HPS VMEbus Multiplexer (HPS–6236/6237) Technical Manual (014–001817)
Contains board layout and a detailed technical description of the VAC/16
asynchronous controller board.
HPS Downloadable Cluster Controller Installation Guide (014–001814)
Describes how to install the hardware of the VDA/128 and VDA/255 cluster
controllers (VDC/16 and VDC/8P).
HPS Downloadable Cluster Controller Technical Manual (Model 020 VDC/8P and
VDC/16) (014–001813)
Describes how to install, program, and operate Model 020 VDC/8P and VDC/16
cluster controllers.
Model 030 Cluster Controller Technical Manual (014–002047)
Describes how to install, program, and operate Model 030 VDC/8P and VDC/16
cluster controllers.
HPS VMEbus Host Adapters Technical Manual (014–001815)
Contains board layout and a detailed technical description of the VDA/128
asynchronous host adapter board.
VDA/255 Host Adapter Technical Manual (014–002049)
Contains board layout and a detailed technical description of the VDA/255
asynchronous host adapter board.
Technical Notice: Setting Up and Installing VMEbus Termserver Controllers
(VTC) (014–002109)
Describes how to configure the VTC board and connect it to an Ethernet
IEEE 802.3 LAN.
VMEbus Termserver Controller (VTC) Hardware Technical Manual (014–002108)
Contains board layout and a detailed technical description of the Data General
VMEbus Termserver Controller (VTC) board.
VMEbus Data Communications Processor (DCP-8820) Technical Manual
(014–001816)
Contains board layout and a detailed technical description of the Data General
VME Synchronous Controller (VSC/3) board.
Setting Up and Installing Model 7428 VME Synchronous Controllers (VSC/3i) in
AViiONSystems (014–002151)
Describes board layout and how to configure the VME synchronous controller
(VSC/3i) board.
Installing, Configuring, and Programming the Model 7430 VME SCSI-2 Adapter
(VSA) in AViiONSystems (014–002163)
Shows board layout and describes how to set jumpers on the VSA board, connect
device cables, and program the board for use with the DG/UX operating system.
Technical Notice: Installing, Configuring, and Programming the Model 7430 VME
SCSI-2 Adapter (VSA) in AViiONSystems (014–002220)
Provides information update for the Installing, Configuring, and Programming
the Model 7430 VME SCSI-2 Adapter (VSA) in AViiONSystems manual
(014–002163)

Preface
viii 014–001867
V/Ethernet 3207 Hawk Local Area Network Controller for Ethernet User’s Guide
(014–001818)
Contains board layout and a detailed technical description of the Data General
VME LAN Controller (VLC) board.
Technical Notice: Setting Up and Installing VLCi Controllers in AViiONSystems
(014–002153)
Describes how to configure a VLCi controller for use with the DG/UX operating
system and connect it to an Ethernet IEEE 802.3 LAN.
CMC–130 VMEbus LAN Controller (VLCi) Reference Guide (014–002152)
Contains illustrations, technical descriptions, and jumper locations for the VLCi
controller board.
Ethernet/IEEE 802.3 Local Area Network Installation Guide (014–000793)
Explains how to install both the coaxial cable plant of an Ethernet LAN and the
transceivers that connect the network to a node communication controller.
Technical Notice: Setting Up and Installing VMEbus FDDI Controllers (VFC) in
AViiONSystems (014–002155)
Contains installation and configuration information for the VME FDDI
controller (VFC) board.
VMEbus FDDI Controller (VFC) User’s Guide (014–002154)
Contains board layout and detailed technical description for the VFC controller.
Data General Fiber Optic Cable Plant Design and Verification Manual
(014–001653).
Contains detailed descriptions of FDDI network ring topology and configuration.
Configuring the VME Token Ring Controller (VTRC) for AViiONSystems
(014–002016)
Describes jumper locations and other information you need to configure your
VTRC controller to operate in an AViiON system.
DG/Token Ring Local Area Network Installation Guide (014–001730)
Explains how to install a token-ring local area network (LAN), including Trunk
Access Units (TAUs), Media Access Units (MAUs), and network hardware.
DG/UX Operating System Documentation
Installing the DG/UXSystem (093–701087)
Describes how to install the base DG/UX system on AViiON hardware.
Customizing the DG/UXSystem (093–701101)
Describes how to build a custom DG/UX kernel for your site. Included are
descriptions of how to add user home directories, printers, terminals, additional
packages, operating system clients and secondary releases.

Preface
ix
014–001867
Managing the DG/UXSystem (093–701088)
Discusses the concepts and tasks related to DG/UX system management,
providing general orientation to the administrator’s job as well as instructions
for managing disk resources, user profiles, file systems, printers and tape drives,
and other features of the system. The manual approaches system
administration through the sysadm facility.
Reader, Please Note
In this manual, we use the term backplane to describe the interconnecting printed
circuit board that passes bus and power signals to other boards. Some other
documentation refers to the backplane as the backpanel.
Contacting Data General
Data General wants to assist you in any way it can to help you use its products.
Please feel free to contact the company as outlined below.
Manuals
If you require additional manuals, please use the enclosed TIPS order form
(United States only) or contact your local Data General sales representative.
Telephone Assistance
If you are unable to solve a problem using any manual you received with your
system, telephone support is available with your hardware warranty and with
Support Plus and Hotline Software Support service contracts. If you are within the
United States or Canada, contact the Data General Customer Support Center (CSC)
by calling 1–800–DG–HELPS. Lines are open from 8:00 a.m. to 5:00 p.m., your time,
Monday through Friday. The center will put you in touch with a member of
Data General’s telephone assistance staff who can answer your questions.
For telephone assistance outside the United States or Canada, ask your
Data General sales representative for the appropriate telephone number.
Joining Our Users Group
NADGUG, the North American Data General Users Group, is a unique network of
Data General users who wish to discover more about working computer
environments and how to use them. As a professional, user–run organization,
NADGUG enables members to make contacts with colleagues, share expertise and
perspectives, and influence the companies that provide products and services. The
Users Group is your connection to expert users of Data General products, including
AViiON open systems, CLARiiON advanced storage solutions, PCs, and ECLIPSE
MV/Family systems. Getting just one solution from a fellow member can more than
pay for the cost of belonging to NADGUG. To join or for more information, call
1–800–253–3902, extension 1222, or 508–443–3330, extension 1222.
End of Preface

Preface
x014–001867

xi
014–001867
Contents
Chapter 1 Preparing to Install VME Options
About the VMEbus 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Use This Manual 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview of Pre-Installation Steps 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reviewing System Specifications 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Calculating Power Requirements 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assigning Card Cage Slots 1-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Board Slots 1-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arbiter 1-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Slot Priority 1-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Avoiding Electrostatic Discharge (ESD) Damage 1-13. . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency Procedures (without an ESD kit) 1-14. . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2 Configuring VME Option Boards
Installing Board Jumpers and Setting Switches 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Jumpers 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Switches 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Asynchronous and Terminal Controller Boards 2-4. . . . . . . . . . . . . . . . .
Configuring Models 7400 and 7411 VME Asynchronous Controller
(VAC/16) Boards 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Models 7401 and 7418 VME Distributed Asynchronous
(VDA/128 and VDA/255) Adapter Boards 2-9. . . . . . . . . . . . . . . . . . . . . .
Configuring a Model 7425 VME Terminal Controller (VTC) Board 2-17. . . . . .
Configuring Models 7413–A and 7428 VME Synchronous Controller
Boards (VSC/3, VSC/3i) 2-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Synchronous Electrical Interface for VSC/3i Channels 2-28. . . .
Configuring a Model 7430 VME SCSI-2 Adapter (VSA) Board 2-31. . . . . . . . . . . . . . .
Selecting Single–Ended or Differential SCSI Bus Operation 2-33. . . . . . . . . . . .
Configuring Models 7405 and 7429 Ethernet LAN Controller Boards
(VLC and VLCi) 2-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring a Model 7416 VME Token Ring Controller (VTRC) Board 2-43. . . . . . . .
Configuring a Model 7431 VME FDDI Controller (VFC) Board 2-48. . . . . . . . . . . . . . .
Chapter 3 Installing and Removing VME Option Boards
Card Cage Assembly 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing an EMI/Air Dam Upgrade Kit 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Installing Boards 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing Boards from the VME Card Cage 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Boards in the VME Card Cage 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Completing the Configuration 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Backplane Jumpers for Empty Slots 3-11. . . . . . . . . . . . . . . . . . . . . . . .
Connecting Devices to the External Connectors 3-14. . . . . . . . . . . . . . . . . . . . . . .
Rebuilding the DG/UX Operating System Kernel 3-14. . . . . . . . . . . . . . . . . . . . . .
Running an Acceptance Test 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
xii 014–001867
Chapter 4 Connecting External Devices to VME Option
Boards
Tools and Equipment 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Organization of This Chapter 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Asynchronous Devices to a VAC/16 Asynchronous Controller 4-3. . . . .
Connecting a Junction Box to a Model 7411–KA VAC/16 Controller 4-4. . . . .
Connecting Devices to a VAC/16 Junction Box 4-6. . . . . . . . . . . . . . . . . . . . . . . . .
Connecting VDA/128 and VDA/255 Communications Clusters 4-9. . . . . . . . . . . . . . .
Connecting a Cluster Controller Cable to a VDA Adapter 4-10. . . . . . . . . . . . . .
Connecting Asynchronous Devices to a Cluster Box 4-11. . . . . . . . . . . . . . . . . . . .
Connecting a Parallel Printer to a Cluster Box 4-16. . . . . . . . . . . . . . . . . . . . . . . .
Connecting a VTC Controller to an Ethernet LAN 4-18. . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Synchronous Devices to a VSC/3 Controller 4-21. . . . . . . . . . . . . . . . . . . . .
Connecting Synchronous Devices to a VSC/3i Controller 4-22. . . . . . . . . . . . . . . . . . . .
Connecting SCSI Devices to a VSA SCSI-2 Controller 4-25. . . . . . . . . . . . . . . . . . . . . . .
Connecting a VLC Controller to an Ethernet LAN 4-27. . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting a VLCi Controller to an Ethernet LAN 4-30. . . . . . . . . . . . . . . . . . . . . . . . .
Connecting a VTRC Controller to a Token Ring LAN 4-33. . . . . . . . . . . . . . . . . . . . . . . .
Connecting a VFC to an FDDI Network 4-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single-Attachment versus Dual-Attachment Connection 4-36. . . . . . . . . . . . . . .
Determining Tx and Rx Cable Strands 4-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the VFC to a Concentrator, Bridge, or Station 4-40. . . . . . . . . . . . . . . . . . .
Connecting a VFC to an Optical Bypass Switch 4-42. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optical Bypass Switch Connector Signals 4-43. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix A VME Backplane Connector Signals and
Power Distribution
Appendix B Board Slot Maps, Power Requirement Forms,
and Device Line Worksheets
Board Slot Maps B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Requirement Form B-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VAC/16 Device Line Worksheet B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VDA Host Adapter Device Worksheet B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix C External Device Connector Pin Assignments
VAC/16, VDC/16, and VDC/8P Asynchronous Serial Port Connectors C-4. . . . . . . . .
VDC/8P Parallel Port Connector C-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VTC Interface Connector C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VSC/3 Synchronous Serial Port Connectors C-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VSC/3i Synchronous Serial Port Connectors C-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VSA SCSI Connectors C-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VLC Interface Connector C-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VLCi Interface Connector C-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VTRC Interface Connector C-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VFC Optical Bypass Switch Connector C-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
xiii
014–001867
Appendix D Special Instructions for Model-Specific VME
Hardware
Securing Boards with Captive Stand-Off Screws D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing and Removing the Model 7411–K VAC/16 and Junction Box
Assembly D-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing Model 7411–K Boards from the VME Card Cage D-3. . . . . . . . . . . . . . . . .
Attaching the Model 7411–K Junction Box to the VAC/16 D-5. . . . . . . . . . . . . . . . . . .
Installing Model 7411–K VAC/16 Boards in the VME Card Cage D-7. . . . . . . . . . . . .
Mounting Junction Boxes D-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attaching an Air Dam to a VFC Controller Board D-15. . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix E Assigning VME Data Bus and Interrupt
Priorities
Reference Documents E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Transfer Bus (DTB) Priority Arbitration Methods E-1. . . . . . . . . . . . . . . . . . . . .
Prioritized Bus Arbitration E-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single–Level Bus Arbitration E-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Considerations E-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Loss E-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Buffered Devices E-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTB Usage E-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bus Bandwidth E-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Transfers E-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Slave Only Devices E-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical Constraints E-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Board Related Problems E-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bus Clear (BCLR*) Response E-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Rules for Setting DTB Priority E-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended DTB Priorities E-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alternate DTB Assignments E-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction to Interrupt Priority E-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
xiv 014–001867
Tables
Table
1–1 Current Requirements for VME Option Boards 1-5. . . . . . . . . . . . . . . . . . . . .
1–2 Board Slot Priority – Two–Slot Systems 1-12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1 SW1 Switch-Pack Settings for VAC/16 Boards (All Board Positions) 2-6. .
2–2 Default Jumper Settings for VAC/16 Boards (All Board Positions) 2-6. . . . .
2–3 Default Jumper Settings, VAC/16 Boards 0 Through 7 Variations
(DG/UX 5.4.2 or later) 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–4 Default Jumper Settings, VAC/16 Boards 0 – 7 Address Variations
(DG/UX 5.4.1 or earlier) 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5 SW1 Switch-Pack Settings for VDA/128 Boards (All Board Positions) 2-10.
2–6 Default Jumper Settings for VDA/128 Boards (All Board Positions) 2-11. . .
2–7 Default Jumper Settings, VDA/128 Boards 0 Through 7 Variations
(DG/UX 5.4.2 or later) 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–8 Default Jumper Settings, VDA/128 Boards 0 – 7 Address Variations
(DG/UX 5.4.1 or earlier) 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–9 Default Jumper Settings for VDA/255 Boards (All Board Positions) 2-15. . .
2–10 Default Jumper Settings for VDA/255 Boards 0 Through 7 Variations
(DG/UX 5.4.2 or later) 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–11 Default Jumper Settings, VDA/255 Boards 0 Through 7 Address Variations
(DG/UX 5.4.1 or earlier) 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–12 Default Jumper Settings for VTC Boards (All Board Positions) 2-19. . . . . . .
2–13 Default Jumper Settings for VTC Boards 0 Through 7 Variations
(DG/UX 5.4.2 or later) 2-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–14 Default Jumper Settings, VTC Boards 0 Through 7 Address Variations
(DG/UX 5.4.1 or earlier) 2-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–15 Default Jumper Settings for VSC/3 Boards (All Board Positions) 2-23. . . . . .
2–16 Default Jumper Settings for VSC/3 Boards 0 Through 7 Variations 2-25. . .
2–17 Default Jumper Settings for VSC/3i Boards (All Board Positions) 2-27. . . . .
2–18 Default Jumper Settings for VSC/3i Boards 0 Through 7 Variations 2-28. . .
2–19 Default Jumper Settings for VSA Boards (All Board Positions) 2-33. . . . . . .
2–20 Default Jumper Settings for VSA Boards 0 Through 7 Variations 2-33. . . . .
2–21 Default Jumper Settings for VLC Boards (All Board Positions) 2-38. . . . . . .
2–22 Default Switch Settings for VLC Boards 0 Through 7 Address Variations
(DG/UX 5.4.2 or later) 2-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–23 Default Switch Settings, VLC Boards 0 Through 7 Address Variations
(DG/UX 5.4.1 or earlier) 2-40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–24 Default Jumper Settings for VLCi Daughter Board 2-42. . . . . . . . . . . . . . . . . .
2–25 Default Jumper Settings for VLCi Boards (All Board Positions) 2-42. . . . . . .
2–26 Default Jumper Settings, VLCi Boards 0 Through 7 Address Variations . . . . .
2-43

Contents
xv
014–001867
Table
2–27 Default Jumper Settings for VTRC Boards (All Board Positions) 2-45. . . . . .
2–28 Default Jumper Settings for VTRC Boards 0 Through 7 Address Variations
(DG/UX 5.4.2 or later) 2-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–29 Default Jumper Settings, VTRC Boards 0 Through 7 Address Variations
(DG/UX 5.4.1 or earlier) 2-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–30 Default Jumper Settings for VFC Boards (All Board Positions) 2-50. . . . . . .
2–31 Default Jumper Settings, VFC Boards 0 through 7 Address Variations 2-51
4–1 Asynchronous Device Cables 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–2 Cables for Cluster Controllers 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–3 Asynchronous Device Cables 4-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–4 Parallel Printer Cables 4-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–5 LAN Drop Cables, VTC 4-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–6 Cables for Synchronous devices and the VSC/3 Board 4-21. . . . . . . . . . . . . . .
4–7 VSC/3i External Connector Cables 4-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–8 SCSI Device Cables 4-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–9 LAN Drop Cables, VLC 4-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–10 LAN Drop Cables, VLCi 4-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–11 Token Ring LAN Cables 4-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–12 VFC Fiber–Optic Cables 4-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–13 Ring State LED Lights 4-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A–1 Connector J1 Signals A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A–2 Connector J2 Signals A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C–1 VME Options: Direct-Connection Cables C-2. . . . . . . . . . . . . . . . . . . . . . . . . . .
C–2 Cluster Controller Power Cords (VDC/8P and VDC/16) C-4. . . . . . . . . . . . . .
C–3 VSC/3i Connector Signals C-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E–1 Relative Priorities of VMEbus Controllers E-7. . . . . . . . . . . . . . . . . . . . . . . . . .
E–2 General Rules for VME TDB Priority Assignments E-8. . . . . . . . . . . . . . . . . .

Contents
xvi 014–001867
Figures
Figure
1–1 Current and Power Calculation Form 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–2 Sample Current and Power Calculation Form 1-8. . . . . . . . . . . . . . . . . . . . . . .
1–3 VME Card Cage 1-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–4 Board Slots in the VME Card Cage 1-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–5 Board Slot Assignment Map 1-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1 Removing or Installing Jumper Plugs 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 DIP Switches on Printed-Circuit Boards 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 VAC/16 Board Jumper Locations 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–4 VDA/128 Board Jumper and Switch Locations 2-10. . . . . . . . . . . . . . . . . . . . . .
2–5 VDA/255 Board Jumper Locations 2-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–6 VTC Board Jumper Locations 2-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–7 VSC/3 Board Jumper Locations 2-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–8 VSC/3i Board Jumper Locations 2-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–9 VSC/3i Electrical Interface Jumpers 2-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–10 Removing Electrical Interface Selection Jumper Blocks 2-30. . . . . . . . . . . . . .
2–11 VSC/3i Channel Configuration and Configuration Tag 2-31. . . . . . . . . . . . . . .
2–12 VSA Board Jumper Locations 2-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–13 Labeled SCSI Ports 2-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–14 VSA Board with Daughter Boards Oriented for Differential and
Single-Ended Operation 2-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–15 Positioning the Daughter Board for Reattachment 2-36. . . . . . . . . . . . . . . . . .
2–16 VLC Board Switch Locations 2-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–17 VLCi Board Jumper Locations 2-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–18 VTRC Board Jumper Locations 2-44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–19 VFC Board Jumper Locations 2-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–1 Typical VME Board Assembly 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–2 Rear View of Typical AViiON Computer Systems 3-2. . . . . . . . . . . . . . . . . . . .
3–3 2–Slot Card Cage Layout Showing Guide Rails and
Backplane Connector 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–4 Air Dams on an AViiON VME Card Cage 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
3–5 Old and New EMI/Air Dams 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–6 EMI/Air Dam Upgrade Kit Installed on an AViiON VME Card Cage 3-5. .
3–7 Mixing Configurations – Boards with Old and New EMI/Air Dams 3-6. . . .
3–8 Releasing Air Dam Screws 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–9 Releasing an Option Board 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–10 Aligning Board in Card Cage 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–11 Board-Ejector Positions When Installing Board 3-10. . . . . . . . . . . . . . . . . . . . .
3–12 Securing a VME Board in the Card Cage 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . .
3–13 Typical AViiON Unit with VME Backplane Exposed 3-12. . . . . . . . . . . . . . . . .
3–14 Installing or Removing Backplane Terminators 3-13. . . . . . . . . . . . . . . . . . . . .

Contents
xvii
014–001867
Figure
4–1 VAC/16 Junction Box 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–2 VAC/16 Controller Connectors 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–3 Plugging VAC/16 Controller Connectors to J-Box Cables 4-5. . . . . . . . . . . . .
4–4 Plugging Together J-Box Connectors 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–5 VAC/16 Device Connectors 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–6 VAC/16 Device Worksheet 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–7 Sample VAC/16 Device Worksheet 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–8 Plugging Together VAC/16 Device Connectors 4-8. . . . . . . . . . . . . . . . . . . . . . .
4–9 Communications Cluster Elements 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–10 VDA/128 or VDA/255 Connectors 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–11 Attaching a BNC Host Connector to a VDA/128 or VDA/255 Receptacle 4-11
4–12 Cluster Box Device Connectors 4-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–13 VDA Device Worksheet 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–14 VDA Device Worksheet 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–15 Sample VDA Device Worksheet 4-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–16 Plugging Together Cluster Box Device Connectors 4-15. . . . . . . . . . . . . . . . . . .
4–17 VDC/8P Parallel Printer Port 4-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–18 Plugging Together VDC/8P Printer Connectors 4-17. . . . . . . . . . . . . . . . . . . . . .
4–19 Securing the VDC/8P Printer Connector 4-17. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–20 VTC LAN Connector 4-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–21 Connector Slide Clip and Slide Clip Mounts 4-19. . . . . . . . . . . . . . . . . . . . . . . .
4–22 LAN Connector Slide Clip Before Connection 4-19. . . . . . . . . . . . . . . . . . . . . . .
4–23 Aligning Slide Clip Mounts with a LAN Connector 4-20. . . . . . . . . . . . . . . . . .
4–24 Securing a LAN Drop Cable to a VTC Connector 4-20. . . . . . . . . . . . . . . . . . . .
4–25 VSC/3 Device Connectors 4-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–26 Plugging a DB25 Connector Into a VSC/3 Connector 4-22. . . . . . . . . . . . . . . . .
4–27 VSC/3i Device Connectors and Channel Configuration Tag 4-23. . . . . . . . . . .
4–28 Plugging a DB25 Connector Into a VSC/3i Connector 4-24. . . . . . . . . . . . . . . .
4–29 Connecting a Device Cable to a VSA Board 4-26. . . . . . . . . . . . . . . . . . . . . . . . .
4–30 VLC LAN Connector 4-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–31 LAN Connector Slide Clip and Slide Clip Mounts 4-28. . . . . . . . . . . . . . . . . . .
4–32 Aligning a LAN Connector Slide Clip Before Connection 4-28. . . . . . . . . . . . .
4–33 Aligning Slide Clip Mounts with a LAN Connector 4-29. . . . . . . . . . . . . . . . . .
4–34 Connecting a LAN Drop Cable to a VLC Connector 4-29. . . . . . . . . . . . . . . . . .
4–35 VLCi LAN Connector 4-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–36 Connector Slide Clip and Slide Clip Mounts 4-31. . . . . . . . . . . . . . . . . . . . . . . .
4–37 LAN Connector Slide Clip Before Connection 4-31. . . . . . . . . . . . . . . . . . . . . . .
4–38 Aligning Slide Clip Mounts with a LAN Connector 4-32. . . . . . . . . . . . . . . . . .
4–39 Securing a LAN Drop Cable to a VLCi Connector 4-32. . . . . . . . . . . . . . . . . . . .
4–40 VTRC LAN Connector 4-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–41 Shielded Twisted Pair Connectors 4-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–42 Unshielded Twisted Pair Connectors 4-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–43 Connecting a VTRC to a LAN Cable 4-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–44 VFC Connectors 4-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–45 Single-Attachment Connection 4-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–46 Dual–Attachment Stations in Simple Ring Configuration (Without
Optical Bypass Switches) 4-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
xviii 014–001867
Figure
4–47 Dual–Attachment Stations in Simple Ring Configuration (With
Optical Bypass Switches) 4-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–48 Attaching ST Bayonet Connectors to a VFC Connector Jack 4-41. . . . . . . . . .
4–49 Attaching MIC Connectors to a Concentrator or Bridge 4-41. . . . . . . . . . . . . .
4–50 Connecting an Optical Bypass Switch to a VFC 4-42. . . . . . . . . . . . . . . . . . . . .
4–51 Attaching Optical Bypass Switch MIC Connectors 4-43. . . . . . . . . . . . . . . . . . .
4–52 VFC Optical Bypass Switch Connector Signals 4-43. . . . . . . . . . . . . . . . . . . . . .
A–1 VME Backplane Bus A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A–2 Pin and Row Positions of Backplane J1 and J2 Connectors A-2. . . . . . . . . . .
A–3 VME Backplane Power Distribution A-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B–1 Sample AViiON Configurations B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C–1 Asynchronous Serial Connector Signals C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
C–2 VDC/8P Parallel Printer Connector Signals C-5. . . . . . . . . . . . . . . . . . . . . . . . .
C–3 VTC Connector Signals C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C–4 VSC/3 Connector Signals C-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C–5 VSC/3i Rear Panel Connector (Female) C-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C–6 VSA SCSI Connector Signals – Single-Ended Interface C-10. . . . . . . . . . . . . .
C–7 VSA SCSI Connector Signals – Differential Interface C-11. . . . . . . . . . . . . . . .
C–8 VLC Connector Signals C-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C–9 VLCi Connector Signals C-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C–10 VTRC Connector Signals C-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C–11 VFC Optical Bypass Switch Connector C-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D–1 Removing Screws and Stand-offs from Air Dam D-2. . . . . . . . . . . . . . . . . . . . .
D–2 Releasing Air Dam Screws D-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D–3 Releasing a Model 7411–K Option Board D-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
D–4 Model 7411–K VAC/16 and J-Box Assembly D-5. . . . . . . . . . . . . . . . . . . . . . . . .
D–5 Removing the VAC/16 Cable Tension Bar D-5. . . . . . . . . . . . . . . . . . . . . . . . . . .
D–6 Connecting External Ribbon Cable to a Model 7411–K VAC/16 D-6. . . . . . .
D–7 Attaching the Model 7411–K VAC/16 Cable Tension Bar D-6. . . . . . . . . . . . .
D–8 Card Cage Guide Rails D-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D–9 Inserting a Model 7411–K VAC/16 Board D-8. . . . . . . . . . . . . . . . . . . . . . . . . . .
D–10 Securing a VAC/16 Board in the Card Cage D-9. . . . . . . . . . . . . . . . . . . . . . . . .
D–11 Wall-Mounted VAC/16 Junction Boxes D-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D–12 VAC/16 Junction Boxes D-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D–13 Removing J-Box Corner Screws D-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D–14 Disassembling a VAC/16 Junction Box D-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D–15 VAC/16 Junction Box Top Mounting Slots D-13. . . . . . . . . . . . . . . . . . . . . . . . . . .
D–16 VAC/16 Junction Box Bottom Mounting Slots D-13. . . . . . . . . . . . . . . . . . . . . . .
D–17 Securing a VAC/16 Junction Box D-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D–18 Reassembling a VAC/16 Junction Box D-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D–19 VFC and 6U Air Dam Assembly D-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E–1 Example of Fixed Prioritized DTB Assignments E-2. . . . . . . . . . . . . . . . . . . . .