Front/Upper panel
Rear
aPOWER indicator
Lights in orange when power is supplied to the ISDN Unit. When initializing is complete, blinks in green.
bSTATUSLights in orange when link synchronization of each ISDN connector is established. Lights in yellow when each ISDN line is connected.
cISDNConnect to the ISDN lines using the ISDN modular cable.
dTERMINAL connector
Connect to the ISDN UNIT connector on the Communication Terminal with the interface cable supplied with the ISDN Unit
Front/Upper panel
PRI
PRI
Rear
aPOWER indicatorsLights in orange when power is supplied to the ISDN Unit. When initializing is complete, blinks in green.
bSTATUS PRI indicatorLights in orange when link synchronization of the ISDN connector is established. Lights in yellow when each ISDN line is connected.
cISDN PRI terminalConnect to the ISDN line using the ISDN modular cable.
dTERMINAL connector
Connect to the ISDN UNIT connector on the Communication Terminal with the interface cable supplied with the ISDN Unit.
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198 Location and Function of Parts and Controls