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Troubleshooting Manual

Cisco 4900M - Catalyst Switch, Troubleshooting Manual

The Cisco 4900M Catalyst Switch installation manual is available for free download on our website. This comprehensive manual provides step-by-step instructions, ensuring a smooth and efficient setup process. Obtain the manual from 88.208.23.73:8080 to effortlessly install and optimize your Cisco 4900M switch.

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Cisco Catalyst 4900M Switch Installation Guide

78-18350-02

Chapter 1 Troubleshooting the Installation

Contacting Customer Service

Figure 1-1

Serial Number Location

202519

SN: XXXNNNNXXXX

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Summary of Contents for 4900M - Catalyst Switch

Page 1: ...tions above the maximum acceptable level rarely occur at initial startup environmental monitoring functions are included because they also monitor DC line voltages Note For configuration questions or problems refer to the software configuration guide or the command reference publication to configure or enable the interfaces Getting Started When the initial system boot is complete verify the follow...

Page 2: ...t is operating If the FAN LED is orange and you determine that the fan assembly is not operating you should immediately contact a customer service representative There are no installation adjustments that you can make if the fan assembly does not function properly at the initial startup Identifying Startup Problems When you connect the power cords to the Catalyst 4900M switch follow these steps St...

Page 3: ...ngs LED Meaning INPUT OK AC This LED should turn green immediately when power is applied to the supply and the power switch is set to ON Green AC input voltage is greater than 80 5 VAC 4 5 VAC Red In a dual power supply configuration alternate unit powered the AC input is less than 73 VAC 3 VAC or the power supply is turned off Off In a single supply configuration signals that AC input voltage is ...

Page 4: ...urce Step 6 If the LED fails to light after you connect the power supply to a new power source replace the power cord Step 7 If the LED still fails to light when the switch is connected to a different power source with a new power cord the power supply is probably faulty If you are unable to resolve the problem contact a customer service representative for instructions Contacting Customer Service ...

Page 5: ...1 5 Cisco Catalyst 4900M Switch Installation Guide 78 18350 02 Chapter 1 Troubleshooting the Installation Contacting Customer Service Figure 1 1 Serial Number Location 202519 SN XXXNNNNXXXX ...

Page 6: ...1 6 Cisco Catalyst 4900M Switch Installation Guide 78 18350 02 Chapter 1 Troubleshooting the Installation Contacting Customer Service ...

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