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SAMWONTECH
1th Edition of TEMP1000_Series IM : Apr. 2014 Page 5 / 63
4. Wiring for Communication
Connector wiring between TEMP1500 and network system depends on communication interface setting
(RS232C/RS485)
.
█ Modular Connector Pin-Mapping for COM2 port
█
Description of Modular Connector Pin-Mapping for COM2 port
PIN no.
RS232C
RS485
Signal
Symbol
Signal
Symbol
1
Transmit Data
TxD
Receive/Transmit Data -
RTX-
2
Receive Data
RxD
Receive/Transmit Data +
RTX+
3
Signal Ground
SG
Signal Ground
SG
4
-
-
-
-
5
-
-
-
-
6
-
-
-
-
6
5
4
3
2
1
SG
RxD
TxD
6
5
4
3
2
1
SG
RTX+
RTX-
RS485
RS232C