Figure a3.8.5 block diagram of tel-w2f (option) – Oki B4100 User Manual
Page 476
40055101TH Rev.4
476 /
Figure A3.8.5 Block Diagram of TEL-W2F (option)
Connected to
NTIF Circuit
CN2
CN3
TEL-W2 (option)
Sending
Frequence
Responce
Circuit
Sending Level
Adjustment
Side Tone
Adjustment
Return Loss
Adyustment
Receiving
Level
Adjustment
Manual Pad
Adjustment
Automatic
Gain
Control
DC V-1
Characteristics
Circuit
+
-
~
~
DB1
Rectifier
Speech IC (IC1)
Microphone
Receiver
+
Connected to
HOOK Circuit
VL
RIN
CL
RPO
MPAD
AGC
TIN+
TIN-
R01
R02
CN5
Sending
Frequency
Circuit
TFC
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