Oki B4100 - Manual (Page 482)

40055101TH Rev.4
482 /
Figure A3.8.3 Block Diagram of TEL-W1 (option)
Connected to
NTIF Circuit
CN1/CN2
CN4
CN3
TEL-W1 (option)
Sending
Frequence
Responce
Circuit
Sending Level
Adjustment
Side Tone
Adjustment
Return Loss
Adyustment
Receiving
Level
Adjustment
MF Dialling
Adjustment
Manual Pad
Adjustment
Automatic
Gain
Control
DC V-1
Characteristics
Circuit
+
-
~
~
DB1
Rectifier
PB/DP
Setting
Pulse Dialling
Adjustment
(Make ratio)
Dialling
Circuit
Speech IC (IC1)
Microphone
Receiver
Handset
+
CO1 to CO4
RO1 to RO4
Connected to
TEN-KEY
circuit
Connected to
HOOK Circuit
VDD
VSS
MUTE
P/T
BMR
DPMUTE
VL
RIN
CL
MUTE
RPO
MF
MPAD
AGC
TIN+
TIN-
R01
R02
CN5