Quick Reference Guide
ARC-1033 Quick Reference Guide 23
2.6.5
Serial port 1 in RS-232/422/485 mode (JCOM_SEL1)
* Default
RS232*
RS422
RS485
PIN
Signal
PIN Signal PIN
Signal
1
NDCDA#
2
COM1-1
3
485_422TX1-
4
NTXDA
5
COM1-3
6
7
NRXDA
8
COM1-2
9
485
10
NDTRA#
11 COM1-4 12
422RX1-
Note:
This connector is available after modify the mode of COM1 in
BIOS setting.
2.6.6
LCD Inverter connector (JBKL1)
Signal
PIN
+5V
5
VBRIGHT
4
BKLEN
3
GND
2
+12V
1