Manual

98
Appendix
RS-232 connector
A.3 RS-232 Connector (optional)
Table A-1. PC (DB-25)-to-Model 286 connections for RS-232 operation.
PC (DTE)
DB-25 Pin
Model 286 (DCE)
DB-25 Pin
DTE
Function
22TD
33RD
44RTS
55CTS
66DSR
77GND
88DCD
20 20 DTR
22 22 RI
Table A-2. PC (DB-9)-to-Model 286 connections for RS-232 operation.
PC (DTE)
DB-9 Pin
Model 286 (DCE)
DB-25 Pin
DTE
Function
32TD
23RD
74RTS
85CTS
66DSR
57GND
1 8 DCD
420DTR
922RI