Specifications

6-3

Cisco ONS 15216 EDFA Operation Guide

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Chapter 6 Troubleshooting

Troubleshooting Commands

Use the following troubleshooting commands to review alarms and the overall status of the ONS 15216

EDFA1 and, if necessary, to reprovision the amplifier.

For additional detailed information regarding each of the following commands, see Chapter 5,

“Command Line Reference.”

STAT Command

You can view the following information using the STAT command:

• Amplifier mode of operation

• Individual pump laser statistics

• Electrical statistics

• Environmental statistics

• Input and output optical signals level

• Amplifier gain

As seen in the following example, you can use this information to quickly isolate any possible problem

with the ONS 15216 EDFA1.

Example 6-1 STAT Command Results

0-0>STAT 1

LD 1: Const Pump Crnt 10(mA) <<< Ctrl-X to Stop >>>

LD 2: Const Pump Crnt 10(mA)

LD T/To TEC LDPwr LDCrnt Amb DC In Out Gain

1 25.5/25.5 39 0.49 9.92 30.25 5.2 0.0/-120.00 0.00/-90.00 30.0

Alarm Display/Clear Commands

Use the ALARM D command to view active ONS 15216 EDFA1 alarms. These alarms are also helpful

in determining the location and type of problem with the ONS 15216 EDFA1.

See the “ALARM” section on page 5-6 for additional information about this command.

Example 6-2 Alarm D Command

0-0>ALARM D

Pump 1 Pump 2

Name Type Crnt Cnt Crnt Cnt Descr

LCRNT Minor xxxxx yyy xxxxx yyy Excessive pump crnt/pump bias

LTMP Minor xxxxx yyy xxxxx yyy LD temp out-of-range

EDFA 1

Name Type Crnt Cnt Descr

LPOUT Major xxxxx yyy Loss outp pwr

LPIN Major xxxxx yyy Loss inp pwr

GAIN Major xxxxx yyy Gain out-of-range