Alpha Microsystems AM-6000 Owner's Manual page 6

Page iv
APPENDIX A - CONNECTOR CONFIGURATIONS .................................................................A-1
SERIAL I/O CONNECTORS.......................................................................................................A-1
WHAT IS RS-232?......................................................................................................................A-1
WHAT IS RS-422?......................................................................................................................A-2
IMPORTANT NOTE ..................................................................................................................A-2
CABLE CONSTRUCTION GUIDELINES....................................................................................A-2
Cable Length ...........................................................................................................................A-2
Cable Type .............................................................................................................................A-3
Cable Shielding .......................................................................................................................A-3
RS-232 DB-9 CONNECTOR SIGNALS.......................................................................................A-4
RS-232 DB-9 to DB-25 Terminal Cables...................................................................................A-5
Workstation Connection Cables ................................................................................................A-6
RS-232 RJ-45 TO DB-25 CABLES FOR TERMINALS AND PRINTERS......................................A-7
PARALLEL PRINTER PORTS ....................................................................................................A-8
AM-6000 UPS STATUS PORT ...................................................................................................A-9
ETHERNET RJ-45 10BASET CONNECTOR ..............................................................................A-9
10BaseT Topology and Cabling................................................................................................A-9
APPENDIX B - THE CONTROL CHARACTERS.......................................................................B-1
APPENDIX C - SUPER I/O..........................................................................................................C-1
DISABLING SUPER I/O..............................................................................................................C-1
Disabling Super I/O on All I/O Boards ......................................................................................C-1
Disabling Super I/O on Individual AM-359 Boards ....................................................................C-2
APPENDIX D - SCSI TERMINATION........................................................................................D-1
SCSI TERMINATION USING EXTERNAL TERMINATOR OPTION ..........................................D-1
ATTACHING EXTERNAL DEVICES .........................................................................................D-2
TERMINATOR POWER .............................................................................................................D-2
APPENDIX E - READ-AHEAD AND WRITE BUFFERING.......................................................E-1
INTRODUCTION....................................................................................................................... E-1
READ-AHEAD........................................................................................................................... E-1
Controlling Read-Ahead ........................................................................................................... E-2
WRITE BUFFERING .................................................................................................................. E-2
Potential Pitfalls ...................................................................................................................... E-3
Setting Up Write Buffering ....................................................................................................... E-3
FINAL NOTES ........................................................................................................................... E-4
AM-6000 Computer Owner's Manual, Rev. 00
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