Power Mode Select Jumper (At_Cn) - Avalue Technology EAX-Q77 User Manual

RS422/485 Pin Mapping
PIN
RS-232
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
2.6.4

Power Mode Select Jumper (AT_CN)

RS-482 RS-422
TXD- TXD-
TXD+ TXD+
RXD+
RXD-
GND GND
EAX-Q77 User's Manual
PIN Signal
AT_PWR_F_BTN#
1
-PWRBT_F
2
NC
3
AT
EAX-Q77 User's Manual 27
ATX
(Default)