AR-B8170 User Manual
12
2.3 Connector and Jumper Setting Table
2.3.2 LED1/LED2 2.3.3 JP1
FUNCTION
LED1
POWER LED
LED2
IDE/SD LED
JUMPER FUNCTION
1-2 (default)
RS232
3-4
RS422
5-6
RS485
2.3.4 JP3 2.3.5 CN7
JUMPER FUNCTION
1-2
RS422/485
TERMINATION
ENABLE
PIN
FUNCTION
1
485D+ or 422TX+
2
485D- or 422TX-
3
422RX+
4
422RX-
2.3.6 COM2 2.3.7 JP2
PIN
FUNCTION PIN
FUNCTION
1
DCD
2
DSR
3
RXD
4
RTS
5
TXD
6
CTS
7
DTR
8
RI
9
GND
10
X
JUMPER FUNCTION
1-2(default)
NORMAL
2-3
Clear CMOS
