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OSC (Q) AF VOLT METER LOOP Simulator (G) (Q) 600

(Q) AF OSC

L1T

BELL Simulator Call - ID Simulator (I) (J) (K) (L) (M) RF Analyzer (N) (O) (P) PSU 6V DC + A_1 (ANT1 Select)

L1R

DTMF Tester (H)
A

DCM

PQUP11352Z A_1 ANT

DCP

(A)

L1R/TP_RLY4

L1T/TP_RLY2

L2T/TP_RLY3

TP_RLY1

(B)

VDD2 +2.5V
LINE_DC

TP_RLY5

L2R

VDD3 +3.3V

A_2

A_2 (ANT2 Select)

LINE_DC 0.9V off hook

CLK VDD3

(F) Frequency Counter (10.368MHz)

VDD4 +4.0V (C) VDD1 +1.8V
TP10

VDD4

VDD2

VDD1

TP23_JTAG

TP10 TX_AF
TP25 TP24

PbF

TP9 RX_AF

TP9