NEC Univerge sv8500 Manual page 1192

LED
POWER Green
Extinction
ON LINE Green
Blink
Extinction
LINE B Green
Blink
Extinction
LINE D Green
Blink
Extinction
LB Green
Blink
Extinction
LINK Green
Extinction
TX/RX Green
Extinction
LED Specifications
COLOR
Indicates power on in MG-PRI/PRA.
Indicates power off in MG-PRI/PRA.
Note:
Indicates initial settings has been completed.
Indicates initial settings is being specified.
Indicates initial setting has not been completed.
Note:
Indicates Layer 1 in ISDN has been established.
Note:
Indicates one channel is being used.
Indicates Layer 1 in ISDN failed to be established.
Indicates make-busy of Dch
Note:
Fast blinking (120 IPM) indicates Layer 2 in ISDN failed to be
established.
Slow blinking (240 IPM) indicates Make-Busy on D-Channel.
Indicates D-Channel failed to be registered.
Indicates initial settings.
Usually not used.
Indicates loopback mode is being performed.
Indicates normal operation is being performed.
Indicates Layer 1 in IP network has been established.
Note:
Indicates Layer 1 in IP network failed to be established.
Indicates IP packets are being sent/received.
Indicates IP packets are not sent/received.
VOL.2-939
DESCRIPTION
Change from lighting indicates FAN alarm is being detect-
ed.
Change from blinking indicates registration is started.
Temporary light on the LED indicates initial settings is be-
ing specified.
Temporary light on the LED indicates initial settings
is being specified.
Temporary light on the LED indicates MG-PRI/PRA is
physically connecting to IP network.
MG-PRI/PRA