NEC Univerge sv8500 Manual page 1314

When the lamps remain the following status for a long time, any failure might occur in initial setting. Make
Note:
sure of the cable connection and the office data assignment to solve the problem.
PWR ON LINE
ON OFF
ON ON
ON ON
ON ON
[1] Basic Connection Test
STEP 1: Is the PWR lamp lighting green?
[No]
• Check the AC power cable is firmly inserted.
• Check the PWR switch is ON.
• Check the AC power cable from the AC power inlet is firmly connected to power source.
[Lights green]
Go on to STEP 2.
STEP 2: Is the LINK lamp lighting green?
[No]
• MG(PRI) may not be physically connected to the LAN. Check the LAN cable between MG(PRI)
and networking device. (Also check the power of Switching HUB and Routers are turned ON.)
• Check that correct cable is used (Use the Straight-through Cable)
• Check that the cable is not damaged. (Test the continuity in the LAN cable.)
Replace the LAN cable or the network device if the problem is still not cleared.
[Lights green]
This lamp turns ON when MG(PRI) initially starts up and connection to LAN is established.
Go on to STEP 3.
LINE
LB
B D
ON ON OFF
ON ON OFF
OFF OFF Flash
OFF OFF OFF
VOL.2-1061
MG(PRI) (1.5M) [SCA-24PRIA/MG-24PRIA]
CAUSE OF ERROR
Registration NG on IP part
Initial setting NG on ISDN part
Layer 2 is not established in ISDN part
D-channel has not been specified yet.