Remote Control Connections
The serial port can be connected to a computer to support remote control of the Compass S2 unit with either RS232
or RS485 hardware protocols. Connection points on the remote port connector are specified below.
REMOTE
DB25 RS232 RS485
1 Shield
Shield
2 TxD T(-)
3 RxD R(-)
4 RTS N/A
5 CTS N/A
6 DSR N/A
7
Sig Gnd
Sig Gnd
8 DCD N/A
10 N/A N/A
12 N/A N/A
14 N/A T(+)
15 N/A N/A
16 N/A R(+)
19 N/A N/A
20 DTR N/A
21-25 N/A
N/A
10
Compass
S
2
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