Com1 Port: Serial Port Rs232/422/485 - Nexcom APPC 1230T User Manual

Chapter 2: Jumpers and Connectors
RS422
Pin Definition
1 COM2_TXD-
2 COM2_TXD+
3 COM2_RXD+
4 COM2_RXD-
5 COM2_GND
6 COM2_RTS-
7 COM2_RTS+
8 COM2_CTS+
COM2_CTS- (Could be a
9
+12V Power Pin)
RS485
Pin Definition
COM2_TXD-
1
COM2_RXD-
COM2_TXD+
2
COM2_RXD+
3 Reserve
4 Reserve
5 Reserve
6 Reserve
7 Reserve
8 Reserve
Reserve (Could be a
9
+12V Power Pin)
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COM1 Port: Serial Port RS232/422/485

APPC 1230T/APPC 1235T/APPC 1530T/APPC 1730T/APPC 1930T
(Ring or +5V Power for Pin 9)
APPC 1231T/APPC 1531T/APPC 1731T/APPC 1931T
(Isolation protection with RS232/422/485)
Connector type: 9-pin D-Sub
Connector location: CN15
RS232
Pin
1
2
3
4
5
6
7
8
9 COM1_RI: Ring Indicator (Could be a +5V Power Pin)
33
APPC 1230T/1231T/1235T/1530T/1531T/1730T/1731T/1930T/1931T User Manual
Definition
COM1_DCD: Data Carrier Detect
COM1_RXD: Receive Data
COM1_TXD: Transmit Data
COM1_DTR: Data Terminal Ready
COM1_GND
COM1_DSR: Data Set Ready
COM1_RTS: Request To Send
COM1_CTS: Clear To Send