ARC-21W35
2.5.3
AT/ATX Input power select (JSATX1)
* Default
2.5.4
Serial port 1 in RS-232/422/485 mode (JCOM_SEL1)
* Default
34 ARC-21W35 Quick Reference Guide
RS232*
PIN
Signal
12
422RX1-
9
485_422TX1+
6
422RX1+
3
485_422TX1-
Note:
This connector is available after modify the mode of COM1 in
BIOS setting.
ATX*
AT
RS422
PIN
Signal
PIN
Signal
11 COM1-4 10
NDTRA#
8
COM1-2
7
NRXDA
5
COM1-3
4
NTXDA
COM1
2
1
NDCDA#
-1
RS485