Read Panasonic DP-8020E / DP-8020P / DP-8016P (serv.man3) Other Service Manuals online
121
OCT 2006
Ver. 1.0
DP-8020E/8020P/8016P
2.10.9. FXB PC Board
CN391
CN392
FXB PCB
Pin No.
Signal Name
Destination
Signal Waveform
Function
CN391-1
+5VP
MJR PC Board
CN25-1
CN25-1
+5 VDC Power Supply
CN391-2
GND
MJR PC Board
CN25-2
CN25-2
Ground
CN391-3
+24V
MJR PC Board
CN25-3
CN25-3
+24 VDC Power Supply
CN391-4
pCMLD
MJR PC Board
CN25-4
CN25-4
Line Switching Relay Drive
Signal
H : CML On
L : CML Off
Signal
H : CML On
L : CML Off
CN391-5
nHKOF
MJR PC Board
CN25-5
CN25-5
External Phone Off-Hook
Detection Signal
H : On Hook
L : Off Hook
Detection Signal
H : On Hook
L : Off Hook
CN391-6
nCTON
MJR PC Board
CN25-6
CN25-6
Ring Detection Signal
CN391-7
AGND
MJR PC Board
CN25-7
CN25-7
Ground
FXB PCB
Pin No.
Signal Name
Destination
Signal Waveform
Function
CN392-1
L2
MJR PC Board
CN22-1
CN22-1
Line Signal
CN392-3
L1
MJR PC Board
CN22-2
CN22-2
Line Signal
+5V
0V
+24V
+5V(H)
0V(L)
OFF
ON
+5V(H)
0V(L)
H: Standby Mode
L: Ringing
L: Ringing
0V
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