American Magnetics 286 Multi-Sensor Liquid Level Instrument (CE-Marked) - Manual (Page 112)

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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
2 2 TD
3 3 RD
4 4 RTS
5 5 CTS
6 6 DSR
7 7 GND
8 8 DCD
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
3 2 TD
2 3 RD
7 4 RTS
8 5 CTS
6 6 DSR
5 7 GND
1 8 DCD
4 20 DTR
9 22 RI