Panasonic UF-890 Service Manual page 94

CN20
Pin No. Signal Name
CN20-1 NC
CN20-2 NC
CN20-3 L2(T)
CN20-4 L1(R)
CN21
Pin No. Signal Name
CN21-1 NC
CN21-2 NC
CN21-3 T1
CN21-4 T2
CN23
Pin No. Signal Name
CN23-1 NC
CN23-2 HLIN1
Destination
Telephone Line
Telephone Line
Destination
External
Telephone
External
Telephone
Destination
SRU PCB
CN90-1
Signal Waveform
Signal Waveform
Signal Waveform
94
Function
Not Used
Not Used
Line Signal
Line Signal
Function
Not Used
Not Used
Line Signal for the External
Telephone
Line Signal for the External
Telephone
Function
Not Connected
Line Signal for the Fax Handset