User manual

RS232C Interface Page 14
Columbia Weather Systems, Inc.
A typical installation would be configured as follows:
RS232C
Pin # DTE Capricorn II Direction
1 GND GND Both
2 TXD RXD To Capricorn II
3 RXD TXD From Capricorn II
4 RTS Remove Jumper
1
Not Used
5 CTS Switch Off Not Used
6 DSR DSR Both-Internal Pull-Ups
7 GND GND Both
8 DCD DCD Both-Internal Pull-Ups
20 DTR CTS To Capricorn II
22 RI Not Monitored
2
Not Used
RTS Switch Off
DTR Switch Off
1
Cut trace in older units
2
Ring Indicator is not monitored in the standard configuration of the Capricorn II RS232C
Interface.