NEC Univerge sv8500 Manual page 1313

14.3.6 Basic Test Procedures
Operation of MG(PRI) can be checked from the visual inspection of lamp display.
LAMP NAME
PWR
ALM
Note 1
ON LINE
LB
B
LINE
D
LINK
Ether
100M
For ALM lamp on MG-24PRIA, it always remains OFF.
Note 1:
Lamps on the Front Panel
COLOR
Green Power ON
OFF Power OFF
Red Lights when power module failure is detected
OFF Normal operation
Green Lights when registration is completed
Flash (60INT) Flashes during initial setting is proceeded
OFF Initial setting is not completed
Not used
Green
* Temporary lights in initial setting
Flash (60INT) Flashes in loop-back mode
OFF Normal operation
Lights when using two channels or more
Green
* Temporary lights in initial setting
Flash
Flashes when using only one channel
(120INT)
OFF Remains OFF when all the channels are idle
Layer 2 link is established in ISDN line
Green
*Temporary lights in initial setting
Flash (60INT) Flashes slow when Dch is in make-busy state
Flash
Flashes fast when Layer 2 link is not established
(120INT)
OFF Dch is not assigned
Lights when establishing Layer 1 link
Green
Note: Lights when physically connected to IP network.
Flash Flashes (in 0.2-second cycle) when sending/receiving IP Packet
OFF Layer 1 link is not established
Green Lights when transmission speed is 100 Mbps
OFF Remains OFF when transmission speed is 10 Mbps
MG(PRI) (1.5M) [SCA-24PRIA/MG-24PRIA]
MEANING OF INDICATION
VOL.2-1060