NEC Univerge sv8500 Manual page 1091

[B lamp of LINE0/1 lights]
• Either of the B1 or B2 channels is currently used.
[Call originated/terminated normally], [Call quality is adequate]
Connection test is completed.
[2] Alarm Information Check
• Check the Alarm Lamps. If the red lamp lights, search the cause of fault and perform the appropriate
operations.
ALM Lamp Check is available for SCA-24PRIA only.
Note:
• Check the system message.
1. Display the system message using DFTD command.
2. See the system message and confirm whether any failure occurs on MG(PRI). Recover it if needed.
• 3-H (Digital Line Warning), 3-I (Digital Line Failure)
• 13-J (Restoration from CCS Link Failure)
• 33-R (IP PKG Warning), 33-S (IP PKG Failure), 33-T (IP PKG Restore)
[3] Emergency Telephone Switching Test
The general description of the "Emergency Telephone" is explained below.
Call Path Control Unit
Telephone terminal to be connected to EMA TEL is ISDN terminal or Terminal Adapter + Analog Tele-
Note:
phone. Only LINE0 is connected directly to ISDN line using this feature.
Connect the ISDN line to LINE0 and ISDN telephone (or TA + Analog Telephone) to EMA TEL. The cable
length from DSU to ISDN terminal (or TA) must be set below 1000 meters (3280 feet).
Line I/F Unit
LAN I/F Unit
EMA TEL
TA
LINE1
DSU
LINE0
DSU
LAN
VOL.2-838
MG(BRI) [SCA-2BRIA/MG-2BRIA]
Analog Telephone
ISDN LINE
ISDN LINE
TA: Terminal Adapter
DSU: Digital Service Unit