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2.1 ARC-15W33 connector mapping
2.1.1
Serial port 1 connector (COM1)
RS-485
Signal
DATA-
DATA+
NC
NC
GND
Please set BIOS & JCOM1_SEL1
2.1.2
Serial port 2 connector (COM2)
PIN PIN
Signal
1
6
NC
2
7
NC
3
8
NC
4
9
NC
5
Quick Reference Guide
RS-232
Signal
NDCDA#
NRXDA
NTXDA
NDTRA#
GND
RS-422
Signal
TxD-
TxD+
RxD+
RxD-
GND
Please set BIOS & JCOM1_SEL1
Signal
NDCDB#
NRXDB
NTXDB
NDTRB#
GND
ARC-15W33 Quick Reference Guide 15
PIN PIN
Signal
1
6
NDSRA#
2
7
NRTSA#
3
8
NCTSA#
4
9
NRIA#
5
PIN PIN
Signal
1
6
NC
2
7
NC
3
8
NC
4
9
NC
5
PIN PIN
Signal
1
6
NDSRB#
2
7
NRTSB#
3
8
NCTSB#
4
9
NRIB#
5
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