Com3 Port And Connector: Serial Port Rs232 - Nexcom APPC 1230T User Manual

Chapter 2: Jumpers and Connectors
RS422
Pin
1 COM1_TXD-: Transmit Data Negative
2 COM1_TXD+: Transmit Data Positive
3 COM1_RXD+: Receive Data Positive
4 COM1_RXD-: Receive Data Negative
5
6 COM1_RTS-: Request To Send Negative
7 COM1_RTS+: Request To Send Positive
8 COM1_CTS+: Clear To Send Positive
COM1_CTS-: Clear To Send Negative (Could be a +5V
9
RS485
Pin
COM1_TXD-: Transmit Data Negative
1
COM1_RXD-: Receive Data Negative
COM1_TXD+: Transmit Data Positive
2
COM1_RXD+: Receive Data Positive
3
4
5
6
7
8
9 Reserve (Could be a +5V Power Pin)
Copyright © 2012 NEXCOM International Co., Ltd. All Rights Reserved.
Definition
COM1_GND
Power Pin)
Definition
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve

COM3 Port and Connector: Serial Port RS232

APPC 1231T/APPC 1531T/APPC 1731T/APPC 1931T Only
(Ring or +5V Power for Pin 9)
Connector type: 9-pin D-Sub
2x5 10-pin header, 2.0mm pitch
Connector location: CN9
RS232
Pin
1
2
3
4
5
6
7
8
9 COM3_RI (Could be a +5V Power Pin)
10
34
APPC 1230T/1231T/1235T/1530T/1531T/1730T/1731T/1930T/1931T User Manual
2 10
1 9
Definition
COM3_DCD
COM3_RXD
COM3_TXD
COM3_DTR
COM3_GND
COM3_DSR
COM3_RTS
COM3_CTS
GND