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PCBS
2.4.3 NCU (USA/TAIWAN)
TIP
RING
T1
R1
Jumpers
Item
JP5
These jumpers should be shorted when the machine is connected to a
dry line for back-to-back tests.
JP6
BR1
Also remove BR1 when the machine is connected to a dry line.
Current
Sensor
NCU
Relay
JP5
B R 1
O H D I S W
2 4 V
JP6
24V
Ring Detect
Ext. Tel
DP/Off-
Hook
Detection
Description
2-42
30 November, 1999
TRXD
OHDISW
Q 6
Hook0
Hook1
Ex Ring
RITONE
Ex TDI
Q 5
CMLSW
H545D550.WMF
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