Hardware Installation Manual 14 Document #: LTRT-70116
Mediant 2000
3.3 Front-Panel LEDs Description
The device provides LEDs on the front panel. These LEDs are located on the blade and on
the chassis.
3.3.1 General Operating Status LEDs Description
The blade provides LEDs for indicating general operating status, as described in the table
below:
Table 3-3: General Operating Status LEDs Description
Label Color State Description
FAIL
Red On Device failure (fatal error).
- Off Normal functioning.
ACT
Green On Initialization sequence terminated OK.
Yellow On N/A.
Note: During correct operation, the ACT LED is lit green and the FAIL LED is off.
3.3.2 E1/T1 Trunk LEDs Description
The blade provides LEDs for indicating the E1/T1 trunk status, as described in the table
below:
Table 3-4: E1/T1 Trunk Status LEDs Description
Label Color Status Description
T1/E1 Status
1 to 8
T1/E1 Status
9 to 16
Green On Trunk is synchronized (normal operation).
Red On
Loss due to any of the following signals:
LOS Loss of Signal
LOF (Loss of Frame)
AIS (Alarm Indication Signal -- 'Blue alarm')
RAI (Remote Alarm Indication -- 'Yellow
Note: On the front panel, 16 LEDs are provided for 16-span units and 8 LEDs are
provided for 1-span, 2-, 4-, and 8-span units. In the case of 1-, 2-, and 4-span
units, the extra LEDs are not used.