Ricoh B079 - Ncu (Us)

BOARDS
SM 121 B547
Fax Option
B547
4.2.2 NCU (US)
Jumpers
Item Description
JP7
JP8
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
JP7
JP8
ExRing
CML
Relay
Noise
Filter
Surge
Protection
Over-
current
Protection
Surge
Protection
DC Loop
L-
Transformer
CMLSW
Noise
Filter
DB1
A895D520.WMF
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA