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1900.TXT
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1993-01-07
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FYI
Note: The origin of this information may be internal or external
to Novell. Novell makes every effort within its means to verify
this information. However, the information provided in this
document is FOR YOUR INFORMATION only. Novell makes no explicit
or implied claims as to the validity of this information.)
TITLE: Wiring a Terminal
DOCUMENT ID#: FYI-M-1900
DATE: 29DEC92
PRODUCT: DR Multiuser DOS
PRODUCT VERSION: 5.x
SUPERSEDES: 01APR92
SYMPTOM: Trouble wiring a terminal
ISSUE/PROBLEM:
The cable needed to connect a dumb terminal or a PC terminal to
the host machine is an RS-232 Null Modem cable. The possible pin
configurations are as follows:
25-to-25 pin cable
HOST MACHINE PC/TERMINAL
Transmit - 2 3 - Receive
Receive - 3 2 - Transmit
DSR - 6 20 - DTR
Ground - 7 7 - Ground
DTR - 20 6 - DSR
9-to-25 pin cable
HOST MACHINE PC/TERMINAL
Transmit - 3 3 - Receive
Receive - 2 2 - Transmit
DSR - 6 20 - DTR
Ground - 5 7 - Ground
DTR - 4 6 - DSR
25-to-9 pin cable
HOST MACHINE PC/TERMINAL
Transmit - 2 2 - Receive
Receive - 3 3 - Transmit
DSR - 6 4 - DTR
Ground - 7 5 - Ground
DTR - 20 6 - DSR
9-to-9 pin cable
HOST MACHINE PC/TERMINAL
Transmit - 3 2 - Receive
Receive - 2 3 - Transmit
DSR - 6 4 - DTR
Ground - 5 5 - Ground
DTR - 4 6 - DSR