LB-EO Rev.
3
5.2
Front panel – Status monitoring
The status of the module can be easily monitored visually by the LED’s at the front of the
module. The LED’s are visible through the front panel as shown in the figure below.
Figure 5: Front panel indicators for the LB-EO.
The LB-EO has 4 LED’s each showing a status showed in the table below.
Diode / State
Red LED
Green LED
Orange LED
No light
STATUS
Module is faulty,
or module is
initialising.
Module is OK
Module power is
OK
Module
has
no power
LOS
No signal
Signal is present
Module has
no power
LEVEL
Signal level too
high – increase
attenuation or
reduce input level
Signal
level
critical - increase
attenuation or
reduce input level
Signal level
not critical
LASER FAIL
Laser failure
Laser OK
Module has
no power
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