Olson Technology OTEB-CW-B - Manual (Page 36)

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LED Status Indication
1. LED Status Table
LED Color Alarm Other Indication Condition
All LED’s Green None Data or Voice failure but Video
OK
Some Blue ports have weak or no signal output
and no EDFA alarm-Video not affected
All LED’s Green None Weak or no video signal to entire
neighborhood fed off that port
Some Green Ports have weak or no output - no
EDFA Alarm but Data/voice affected on same ports
48V Sup Red Major no other LED’s affected Blown Fuse
48V Sup Amber Minor no other LED’s affected 48V Power Supply Feed Missing
48V Sup Green None - -
Equip Red Major no other front panel LED’s af-
fected, Power Supply LED not
on
Power Supply unit has failed or is unplugged
Equip Amber minor no other LED’s affected Temp alarm active
Mode Amber Major Equip-Red Interlock Connection open
Mode Amber Minor no other LED’s affected Key-switch is off
Pwr In Red Major Mode-Red, Equip-Red Optical Input Failure
Pwr In Amber Minor Equip-Amber Optical Input below or above threshold
Pwr In Green None - -
Pwr Out Amber Minor Equip-Amber Output optical Power is below or above preset
threshold alarm
Pwr Out Red Major Equip-Red, Mode-Amber Optical Output has fallen below critical levels and
has been shut off
Fan Red Major Red Fan LED Lit and Red
Equipment LED
Fan or Airflow failure
Pump Red Minor No other LED indications Pump Current below or above thresholds
2. Minor Alarms
When present the laser emission remains ON. An alarm message is displayed on the front
panel, and the Minor Alarm indicator is illuminated. Minor Alarm conditions will reset auto-
matically when operating conditions are within the design threshold.
3. Major Alarms
When present the laser emission is turned OFF. An alarm message is displayed on the
front panel, the Major Alarm indicator is lit steady and the Alarm relay contacts on the rear
panel are deactivated. In normal operation the relay is energized.
Major Alarms will reset and emission will resume if the alarm condition is corrected. The
exception is the “Output Power Off” Major alarm which requires the emission key to be cy-
cled to regain amplifier operation.