Cisco Prisma II 1310 nm HDTx Transmitters Installation Guide

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5-2 
Maintenance and Troubleshooting 
78-713378-01 Rev C 
Module Maintenance 
Maintaining the Prisma Module 
To ensure optimal performance, the following maintenance is recommended. 
 
Frequency 
Maintenance Required 
Weekly 
• 
Check all parameters and test points 
• 
Record data 
• 
Make adjustments as needed 
Quarterly 
• 
Make sure all cables are mated properly 
• 
Inspect cables for stress and chafing 
• 
Make sure all retaining screws are tight 
When needed 
Carefully clean the module with a soft cloth that is 
dampened with mild detergent 
 
Maintenance Record  
It may be helpful to establish a maintenance record or log for this module. You may 
want to record optical input level, RF output readings, frame error status, or power 
supply voltages. 
Large variations in any of the parameters above should be investigated prior to 
failure.