Onyx C8002 User manual

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C8002
User Guide
DRAFT EDITION - July 1980
Co.pyright @ONYX Systems, Inc., 1980
All rights reserved. No part of this publication may be
reproduced without prior written permission. Request
additional copies from:
ONYX Systems, Inc.
73 East Trimble Road
San Jose, CA 95131
[phone]

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INTRODUCTION
CHAPTER 1
CHAPTER 2
CONTENTS
THE C-S002
General Description
Keyswitch
Power-On Indicator.
Cartridge Opening •
Reset Switch ."
Console Connector
Terminal Connectors
Modem Connector.
S.erial Pr in tOe r C onnec tor
Parallel Port Connector.
RS 422 In.terface Connector
Diagnostic Terminal Connector
Fuse Holder
Power Cord and Connector
Software Di:stribution Tape
INSTALLING THE C8002
Introduction •
Physical Requirements
Contents of Carton·
Unpacking and Installing theC8002
Autoboot
Connecting ModemstTerminals ~nd Printers
Warranty Terms
Return Procedures •
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e1-2
• 1-2
• 1-2
" 1-2
1-3
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• 1-3
•1--3
•1-3
•1-4
• 1-4
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e 1-4
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•2-1
•2-2
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3-1
3-1
3-2
3-2
3-3
3-5
3-5
4-1
4-3
4-3
4-3
4-6
Introduction.
P oweringU p and In! t ializ ing· the C8 002
Tap~Boot O~ Disk Boot Error Code-
R es et ti ng theC 8002 • •.
Using Magnetic Tapes.
Applying Updates to the Syate~ Software •
Diagnosing Problems
Table of Common Problems
Memory Parity Error~
Power Failures
C8002 Self Tests
Mass Stora.g·eController Tests
DIAGNOSING AND HANDLING PROBLEMS
CHAPTER 4
A,PPENDICES

INTRODUCTION
CONTENTS OF THIS GUIDE
THE C8002 is a compact and easy-ta-use computer manufactured by
ONYX Systems,tnc. This Guide tells you what you need to know
about the equipment itself. The Guide a~sumes aminimum of
knowledge of comput~~ systems on the part of the reader.
Separate manuals describe the software designed to run on the
C8002. Manuals published by ONYX Systems are listed in
Appendix C.
HOW TO USE IT
This Guide is set up so that you can skip chapters that do not
pertain to your use of theC8002. For example, the person
insta~ling theC8002 needs to read only Chapters 1 and 2. The
person using the C8002 initially needs to read Chapters 1, 3,
and parts of 5. He will have to refer to Chapters ~ and 5 only
when certain situa~ions arise during the use of the C8002.
UPDATES
This is a draft version of the User Guide; a final copy of the
Guide will·be mailed to you upon its completion. To receive
new editions as they are published, fill out the "Request for
Updates" form in Appendix E. Tear the form out and mail it to
ONYX Systems. ONYX will then place your name on the
distribution list for the C8002 User Guide and for any special
bulle~ins pertaining to the C8002.
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Chapter 1
THE C8002
GENERAL DESCRIPTION
The C8002 i~ a rugged, easy-ta-use computer system. It has a
minimum of components that you need to be familiar with. On
the front panel, you will use or refer to 'the:
keyswitch,
pow~r-on ~ndicator, and
tape cartridge opening.
On the back panel. you will use or refer to the:
reset switch
fuse holder
power cord and connector.
·On the I/O Connactor Panel you~ll use or refer to:
JI01
J102
J103
JI07
l108
3109
J110
J1l1
J104
JI05
J106
Jl12
J113
J114
Console Connector
Terminal Connectors
Modem Connector
Serial Printer Connector
Parallel Port Connector
RS 422 Interface Connector
Diagnostic Terminal Connector
Disk Expansion Connector
In addition to the computer itself, ONYX Systems supplies a
Software Distribution Tape with every C8002.
Figure 1-1 shows each of these components.
follows describes each one in turn.
1-1
The discussion that

POWP:R-ON INDI CATOR
more detail on which
how to operate the tape
The C8002 uses magnetic tapes for removable storage. The
opening-for tapes is located below the keyswitchand' the·
power-on indicator'. Insert- tapes into the opening by sliding
the tape cartridge: in with the metal side down. You will
encount~r some resistance when thetape'is inserted partwayo
Continue to push t~e cartridge in firmly until you hear a
buzzing sound, which indicates that the tape drive is
automatically rew1nd~ng the tape. The tape is now ready' to be
read from or writt;en on by the C80020 Only "3M" tapes designed
for use at 6400 BP! can be used on the C~002o
This lamp, which, i:s located to the right of the keyswitch, will
be lit whenever th!esystem is on. The lamp will need replacing
after rough,ly 15,0'00 hours of use. Chapter 5, UMaintaining the
C8002", describes :how to replace the lamp.
This is a two pos~tion, locking switch that is operated by a
key. The leftposition is the power OFF position, th~ right is
power ON. You can remove the 'key when the switch is turned to
the ON or OFF posieion. The C8002 is then locked in that mode.
We recommend that you remove the key and seoreit in a safe
place except when turning the C8002 on: or offo This will
prevent anyone fro,m accidentally turning the C8002 off.
Remov±ng the key ~ill also allo~you to control access to your
machine.
RESET SWITCH
CARTRIDGE OPENING
KEYSWITCH

CONSOLE CONNECTOR
This is a 2S-pin, "n'·connector on the rear panel that is wired
to accept the plug from a terminal. Chapter 2, "Installing the
C8002", describes the specific pin assignments.
TERMINAL CONNECTORS
These are a number' of 25-pin, '-nn connectors on the rear panel
which are wired to accept the plug from a terminal. Chapter 2,
"Installing the C8002", describes the specific pin assignmentse
~!ODEM CONNECTOR
This is a2S-pin, "n H connector on the rear panel that is wired
to accept the cable from amodem. Chapter 2, "Installing the
CaOOZ", describes its specific pin assignments. NOTE: Terminal
2 ConnectoT (J103) and Modem Connector (J104) ma~ not both be
used at the same time.
SERIAL PRINTER CONNECTOR
This is a 2S-pin, "D" connector on the ~ear panel that is wired
t,o accept ehe plug from a serial printer. Chapter 2,
'-Installing theC800Z", describes its specific pin assignments.
PARALLEL PORT CONNECTOR
This is a 37-pin, "n" connector on the rear panel that provides
a general purpose, bidirectional parallel interface to the
C8002. You will typically use this connector to attach a line
printer to theC8002. To do so, you will need a special cable
that is wired for printers with a "Centronics" interface. The
cables are available from ONYX Systems by special order.
Chapter 2, "Installing the CROOZ", describes the specific pin
assignments for the parallel port connector.
1-3

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This is Cl 37-pin, "D'· connector on the I/O Connector Panel
which provides a bigh-speed serial interface in accordance with
the IEEE &5422 Specification. Chapter 2, "Installing the
C800Z" describes the specific pin assignments.
This is a·· 25-pin, "D'· connector on· the I/O Interface
which may ba used ,to connect a terminal or an asynchronous
modem to th·e Mass IStorage Controller in the C8002. The
documentation pro~ided with the C800Z Diagnostics provides
instructions on t~e use of this port.
RS 422 INTERFACE
DIAGNOSTIC
FUS]~ HO LDER
is plugged
three-prong, 'de tacha,ble
thefus e ho Idler.
Located near the power cord connector, this receptacle contains
the main fuse for the C8002. Chapter 5, '·Maintaining the
C8002 t. ,taIls .how to change the fuse 0
This tape,whic·h i$ supplied with every C8002, contains several
utility programs. You will "need to use this tape
following cases:
POWr:R
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