Ncu (Us) - Ricoh A193 Service Manual

PCBs

10.2 NCU (US)

TIP
RING
T1
R1
Jumpers
Item
JP5 These jumpers should be shorted when the machine is connected to a dry
line.
JP6
SM
Current
Sensor
JP6
NCU
24V
Relay
Description
2-28
JP5
OHDISW
24
V
Ring Detect
Ext. Tel
DP/Off-Hook
Detection
TRXD
OHDISW
Hook0
Hook1
ExRing
ExDI
A194D521.wmf
(A639)