Cisco 2970 Hardware Installation Guide - Page 94

Table 3-2, Common Problems and Their Solutions continued, CPE device absent, not powered, or

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Diagnosing Problems Chapter 3 Troubleshooting Table 3-2 Common Problems and Their Solutions (continued) Symptom Possible Cause LRE status LED not turned RJ-21 cable loose or not connected on. properly. Trunk cable defective. CPE device absent, not powered, or defective. CPE device out of maximum range. Resolution Reseat RJ-21 connector and fasten with screw or cable tie. Test trunk cable. If cable is defective, repair or use alternate pair. Check LRE CPE device, and refer to installation guide. Consider modification to topology to shorten reach or improve wiring quality. Catalyst 2900 Series XL Hardware Installation Guide 3-6 78-6461-04

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Chapter 3
Troubleshooting
Diagnosing Problems
3-6
Catalyst 2900 Series XL Hardware Installation Guide
78-6461-04
LRE status LED not turned
on.
RJ-21 cable loose or not connected
properly.
Reseat RJ-21 connector and fasten
with screw or cable tie.
Trunk cable defective.
Test trunk cable. If cable is
defective, repair or use alternate
pair.
CPE device absent, not powered, or
defective.
Check LRE CPE device, and refer
to installation guide.
CPE device out of maximum range.
Consider modification to
topology to shorten reach or
improve wiring quality.
Table 3-2
Common Problems and Their Solutions (continued)
Symptom
Possible Cause
Resolution