Cisco Prisma II 1310 nm HDTx Transmitters Installation Guide

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78-748704-01 Rev C 
Maintenance and Troubleshooting 
5-3 
General Troubleshooting Information 
Introduction 
This troubleshooting information describes the most common alarms and gives 
typical symptoms, causes, and items to check before consulting us. 
Equipment Needed 
You may need the following equipment to troubleshoot the chassis. 
• 
Digital voltmeter  
• 
Fiber connector cleaning materials 
Additional Assistance 
If you need additional assistance, telephone one of our Technical Service Centers or 
your local sales subsidiary.  The Customer Support section in Chapter 6, Customer 
Information contains a list of telephone numbers. 
Troubleshooting  
  WARNING: 
Avoid electric shock and damage to this product!  Do not open the enclosure of 
this product.  There are no user-serviceable parts inside.  Refer servicing to 
qualified service personnel. 
Refer to the following section, Troubleshoot Alarm Conditions, to identify and 
correct module faults.