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3.2.3.3
E1/T1 LEDs
The E1/T1 trunk port provides a LED for indicating operating status, as
described in the table below:
Color
State
Green
On
Red
On
-
Off
3.2.3.4
Power LED
The POWER LED indicates the power supply status, as described in the table
below.
LED Color
LED State
Green
On
-
Off
Table 3-5: E1/T1 LED Description
Description
Trunk is synchronized (normal operation).
Loss due to any of the following signals:
● LOS - Loss of Signal
● LOF - Loss of Frame
● AIS - Alarm Indication Signal (the Blue
Alarm)
● RAI - Remote Alarm Indication (the
Yellow Alarm)
Failure / disruption in the AC power supply or
the power is currently not being supplied to the
device through the AC power supply entry.
Table 3-6: POWER LED Description
Description
Power is received by the device.
No power received by the device.
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