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Troubleshooting the Optical ILA

 

Troubleshooting Resources Overview

To troubleshoot an optical ILA use LEDs on the ports, management panel, and components.

Optical ILA Alarm Messages Overview

Table 1 describes the optical ILA alarms and provides the corrective action.

Table 1: Alarm Descriptions

Alarm Name

Description

Corrective Action

oplinkilaBoardTemperatureAbnormal

EDFA board temperature alarm. If the temperature is greater than the high threshold, or the temperature is less than the low threshold, an alarm is triggered.

Recover the temperature to normal range. If the temperature falls 1° C below the high threshold or exceeds the low threshold by 1° C, the alarm is cleared.

Note: Hysteresis is 1° C

oplinkilaCommunicationAbnormal

Optical ILA internal alarm. When the communication between the X86 (processor) and the EDFA has a problem, an alarm is triggered.

Hard reset the optical ILA.

If the hard reset fails to clear the alarm, return the device by using a Return Materials Authorization (RMA).

oplinkilaFan0Missing

Fan 0 is missing.

Insert fan in fan slot 0.

oplinkilaFan1Missing

Fan 1 is missing.

Insert fan in fan slot 1.

oplinkilaFan2Missing

Fan 2 is missing.

Insert fan in fan slot 2.

oplinkilaFan0SpeedAbnormal

Speed of fan in fan slot 0 is below 768 rotations per minute.

Clean the fan, or replace it.

oplinkilaFan1SpeedAbnormal

Speed of fan in fan slot 1 is below 768 rotations per minute.

Clean the fan, or replace it.

oplinkilaFan2SpeedAbnormal

Speed of fan in fan slot 2 is below 768 rotations per minute.

Clean the fan, or replace it.

oplinkilaSoftwareVersionAbnormal

Module firmware version mismatch.

Upgrade submodules such as field-programmable gate array (FPGA).

oplinkilaPower1Abnormal

Power supply in slot 1 has failed, or is missing.

Replace the power supply in slot 1.

oplinkilaPower0Abnormal

Power supply in slot 0 has failed, or is missing.

Replace the power supply in slot 0.

oplinkilaTableErr

This alarm is triggered when the manufacture/calibration data are missing.

Return the device by using an RMA.

edfaEabCaseTemperature

E-ab case temperature alarm. When the EDFA case temperature is above 80° C, an alarm is triggered.

E-ab is the A to B direction (for example, east to west).

When the EDFA case temperature is below 80° C, the alarm is cleared.

edfaEabRFL

E-ab module reflection alarm. This alarm is triggered when there is high back reflection at the output port of the optical ILA.

E-ab is the A to B direction (for example, east to west)

Check that the fiber-optic cable is connected at the output port, and if it is connected, clean the fiber-optic cable and reconnect it.

edfaEabOOG

EDFA E-ab is out of gain. This alarm is triggered if the difference between the gain setting and the actual achieved gain is more than 0.5 dB.

E-ab is the A to B direction (for example, east to west).

Wait for the optical ILA control loops to self-adjust.

edfaEabPump0EOL

EDFA E-ab pump 0 has reached its end of life.

E-ab is the A to B direction (for example, east to west).

Reset the optical ILA, or return the device by using an RMA.

edfaEabPump1EOL

EDFA E-ab pump 1 has reached its end of life.

E-ab is the A to B direction (for example, east to west).

Reset the optical ILA or return the device by using an RMA.

edfaEabPump0Temperature

EDFA E-ab pump 0 temperature alarm. If the pump temperature is below 20° C or greater than 30° C, an alarm is triggered.

E-ab is the A to B direction (for example, east to west)

When pump temperature is between 20° and 30° C, the alarm is cleared.

edfaEabPump1Temperature

EDFA E-ab pump 1 temperature alarm. If the pump temperature is below 20° C or greater than 30° C, an alarm is triggered.

E-ab is the A to B direction (for example, east to west).

When pump temperature is between 20° and 30° C, the alarm is cleared.

edfaEabInputLOS

EDFA E-ab input power alarm. If the input power is within 1.5 dB of the threshold for the minimum input power, an alarm is triggered.

E-ab is A to B direction (for example, east to west)

When the input power is at least 1.5 dB greater than the threshold value, the alarm is cleared.

edfaEabOutputLOS

EDFA E-ab output power alarm. If the output power is within 1.5 dB of the threshold for the minimum output power, an alarm is triggered.

E-ab is A to B direction (for example, east to west).

When the output power is at least 1.5 dB greater than the threshold value, the alarm is cleared.

edfaEabCaliTblerr

Eab calibration table error.

Return the device by using an RMA.

edfaEbaCaseTemperature

E-ba case temperature alarm. When the EDFA case temperature is above 80° C, this alarm is triggered.

E-ba is the B to A direction (for example, west to east).

When the EDFA case temperature is below 80° C, the alarm is cleared.

edfaEbaRFL

E-ba module reflection alarm. This alarm is triggered when there is high back reflection at the output port of the optical ILA.

E-ba is the B to A direction (for example, west to east)

Check that the fiber-optic cable is connected at the output port, and if it is connected, clean the fiber-optic cable and reconnect it.

edfaEbaOOG

EDFA E-ba is out of gain. This alarm is triggered if the difference between the gain setting and the actual achieved gain is more than 0.5 dB.

E-ba is the B to A direction (for example, west to east).

Wait for the optical ILA control loops to self-adjust.

edfaEbaPump0EOL

EDFA E-ba pump 0 has reached its end of life.

E-ba is the B to A direction (for example, west to east).

Reset the optical ILA, or return the device by using an RMA.

edfaEbaPump1EO

EDFA E-ba pump 1 has reached its end of life.

E-ba is the B to A direction (for example, west to east).

Reset the optical ILA, or return the device by using an RMA.

edfaEbaPump0Temperature

EDFA E-ba pump 0 temperature alarm. If the pump temperature is below 20° C or greater than 30° C, an alarm is triggered.

E-ba is the B to A direction (for example, west to east).

When pump temperature is between 20° and 30° C, the alarm is cleared.

edfaEbaPump1Temperature

EDFA E-ba pump 1 temperature alarm. If the pump temperature is below 20° C or greater than 30° C, an alarm is triggered.

E-ba is the B to A direction (for example, west to east).

When pump temperature is between 20° and 30° C, the alarm is cleared.

edfaEbaInputLOS

EDFA E-ba input power alarm. If the input power is within 1.5 dB of the threshold for the minimum input power, an alarm is triggered.

E-ba is the B to A direction (for example, west to east).

When the input power is at least 1.5 dB greater than the threshold value, the alarm is cleared.

edfaEbaOutputLOS

EDFA E-ba output power alarm. If the input power is within 1.5 dB of the threshold for the minimum output power, an alarm is triggered.

E-ba is the B to A direction (for example, west to east).

When the output power is at least 1.5 dB greater than the threshold value, the alarm is cleared.

edfaEbaCaliTblerr

E-ba calibration table error.

Return the device by using an RMA.

oscaAddPowerLOS

The alarm is triggered if the add power value is within 1.5 dB from OSC minimum add power threshold value.

The alarm is cleared when the add power is at least 1.5 dB greater than the threshold value.

oscaDropPowerLOS

The alarm is triggered if the drop power value is within 1.5 dB from the OSC minimum drop power threshold value.

The alarm is cleared when the drop power is at least 1.5 dB greater than the threshold value.

oscbAddPowerLOS

The alarm is triggered if the add power value is within 1.5 dB from the OSC minimum add power threshold.

The alarm is cleared when the add power is at least 1.5 dB greater than the threshold value.

oscbDropPowerLOS

The alarm is triggered if the drop power value is within 1.5 dB from the OSC minimum drop power threshold value.

The alarm is cleared when the drop power is at least 1.5 dB greater than the threshold value.