HTTP://BBS.FIXCLUB.COM.CN
132
DP-1510P/1810P
/1810F/2010E
JUL 2002
Edition 1.0
2.22. SRU PC Board (Optional)
CN91
SRU PCB
Pin No.
Signal Name
Destination
Signal Waveform
Function
CN91-1
MIC (+)
Telephone
Handset CN
Handset Microphone
CN91-2
RCV (+)
Telephone
Handset CN
Handset Receiver
CN91-3
RCV (-)
Telephone
Handset CN
Handset Receiver
CN91-4
MIC (-)
Telephone
Handset CN
Handset Microphone