EdgeAccess® Universal Chassis System
Chapter 5
Troubleshooting and Maintenance
5.1Troubleshooting Fiber Optic Cables
All optical cables should be connected using a Tx to Rx, or Rx to Tx orientation for correct MUX and DEMUX signal operation. Proper labeling of each connecting cable is highly recommended.
5.2Troubleshooting Guide
The 6002/3/4 models are passive, unidirectional WWDMs. The modules provide simultaneous transmission of two to four optical signals over a composite SMF pair. Keeping all optical pathways clean and dust free is imperative for
Table 1. Troubleshooting Cause and Solution Chart
Symptom
Possible causes
Solution
Local or remote equipment is not receiving optical signal
1. | Dirty fiber optic cable | 1. | Clean all fiber optic cables in the |
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| circuit |
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2. | Bad connection to | 2. | Replace fiber optic cable |
| equipment |
| connection |
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3. | Optical loss budget has | 3. | Check loss budget of equipment |
| been exceeded |
| being installed |
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4. | Fiber optic cable cut | 4. | Check the condition and |
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| integrity of all fiber optic cables |
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| in the circuit. Immediately |
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| replace or repair cut fiber optic |
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| cable. |
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5. | Fiber optic cables crossed | 5. | Reconfigure the link using the |
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| Rx to Tx orientation |
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6. | Local or remote equipment | 6. | Measure the optical transmit |
| not transmitting sufficient |
| power of equipment using an |
| optical signal |
| optical power meter. Determine |
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| that the equipment is providing a |
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| sufficient optical signal. |
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6002/6003/6004 WWDM Users Manual |
