Ricoh B039 - Ncu (Us)

PCBS
B040 6-4 SM
6.1.2 NCU (US)
Jumpers
Item Description
JP11
JP22
These jumpers should be shorted when the machine is connected to a dry
line.
DB1 Also remove DB1 when the machine is connected to a dry line.
Ring
Detection
Circuit
OHDISW
TIP
RING
T1
T2
TRXD
Current
Sensor
Hook1
Hook0
OHDI SW.
NCU
JP11
JP22
ExRing
CML
Relay
Noise
Filter
Surge
Protection
Surge
Protection
DC Loop
L-
Transformer
CMLSW
Noise
Filter
DB1
B404D536.WMF