
Tracer 2000 DVR user manual
Version 3.0 Page
20
of 36
COM 1 Connector
1
6
5
9
RS-232 Connector (COM1)
Pin no.
Signals
1
DCD
2
RX
3
TX
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
COM2 Connector
1
6
5
9
RS-232/RS-422/RS-485 Connector (COM2) (Please setup mode type by JP3)
Pin no.
RS-232
RS-422
RS-485
1 DCD
TX-
DATA-
2 RX
TX+
DATA+
3 TX
RX+
4 DTR
RX-
5 GND
GND GND
6 DSR
RTS
+
7 RTS
RTS
-
8 CTS
CTS
+
9 RI
CTS
-