Serial Port 1 Connector (Jcom1); Speaker Connector (Speak1) - Avalue Technology ERX-B75 User Manual

ERX-B75 User's Manual

2.4.11 Serial port 1 connector (JCOM1)

2.4.12 Speaker connector (SPEAK1)

22 ERX-B75 User's Manual
Signal PIN PIN
DCD 1 2
TXD 3 4
GND 5 6
RTS 7 8
RI 9
PIN Signal
1 INTSPL+
2 NC
3 NC
4 INTSPR-
Signal
RXD
DTR
DSR
CTS