1 arc-1209 connector mapping, Serial port 1 connector (com1), Serial port 2 connector (com2) – Avalue ARC-1209 User Manual
Page 12
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ARC-1209
12 ARC-1209 Quick Reference Guide
2.1 ARC-1209 connector mapping
2.1.1
Serial port 1 connector (COM1)
RS-485
Signal
PIN PIN
Signal
DATA-
1
6
NC
DATA+
2
7
NC
NC
3
8
NC
NC
4
9
NC
GND
5
RS-232
Signal
PIN PIN
Signal
NDCDA#
1
6
NDSRA#
NRXDA
2
7
NRTSA#
NTXDA
3
8
NCTSA#
NDTRA#
4
9
NRIA#
GND
5
RS-422
Signal
PIN PIN
Signal
TxD-
1
6
NC
TxD+
2
7
NC
RxD+
3
8
NC
RxD-
4
9
NC
GND
5
2.1.2
Serial port 2 connector (COM2)
Signal
PIN PIN
Signal
NDCDB#
1
6
NDSRB#
NRXDB
2
7
NRTSB#
NTXDB
3
8
NCTSB#
NDTRB#
4
9
NRIB#
GND
5
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