Instruction Manual

ERX-B75 User’s Manual
22 ERX-B75 User’s Manual
2.4.11 Serial port 1 connector (JCOM1)
Signal
PIN
PIN
Signal
DCD
1
2
RXD
TXD
3
4
DTR
GND
5
6
DSR
RTS
7
8
CTS
RI
9
2.4.12 Speaker connector (SPEAK1)
PIN
Signal
1
INTSPL+
2
NC
3
NC
4
INTSPR-