
Contents
C H A P T E R 4 | Troubleshooting |
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| Diagnosing Problems |
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| Switch POST Results |
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| Switch LEDs |
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| Switch Connections |
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| Bad or Damaged Cable |
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| Ethernet and | ||||
| Link Status |
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| 10/100 and 10/100/1000 Port Connections | ||||
| 10/100 PoE+ Port Connections | ||||
| SFP Module |
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| Interface Settings |
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| Ping End Device |
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| Spanning Tree Loops |
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| Switch Performance |
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| Speed, Duplex, and | ||||
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| Cabling Distance |
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| Resetting the Switch to the Factory Default Settings | ||
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| Finding the Switch Serial Number | ||
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| Technical Specifications |
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A P P E N D I X | A |
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| Switch Specifications |
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| Power Supply Module Specifications | ||
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| Connector and Cable Specifications |
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A P P E N D I X | B | |||
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| Connector Specifications |
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| 10/100 Ethernet Ports |
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| SFP Module Connectors |
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| Alarm Port |
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Alarm Ratings | |
Cables and Adapters | |
SFP Module Cables | |
Cable Pinouts |
Console Port Adapter Pinouts B-8
Cisco CGS 2520 Hardware Installation Guide
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