Cisco Prisma MediaCenter 2 & 8 Slot Chassis Installation Guide

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Prisma DS3/E3/STS-1 Media Converter Module Installation Instructions 
4008357 Rev B 
Troubleshooting 
General Troubleshooting 
•  During installation, first test the fiber and BNC connections with all 
troubleshooting features disabled, then enable these features, if desired, just before 
final installation.  This reduces the features’ interference with testing. 
•  When working with units where the features cannot be disabled, you must 
establish BOTH your BNC and fiber connections; the NO LNK LEDs should not be 
lit (i.e., NO LNK LED not lit = good connection, NO LNK LED lit = problem). 
•  To test a media converter by itself, first make sure you have an appropriate fiber 
patch cable, and then follow these steps to test. 
 
1. 
Connect the media converter to the BNC device with a coax cable. 
2. 
Loop a single strand of fiber from the transmit port to the receive port of your 
media converter. 
Note:  For single-strand fiber products, connect a single fiber cable from the 
local site Prisma DS3/E3/STS-1 modules to a remote site’s Prisma 
DS3/E3/STS-1 module. 
3. 
Verify that you have a valid connection for both the BNC and fiber ports (see 
Module LED Indicators) on your media converter. 
 
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