3com 5500-ei pwr Instruccion De Instalación

 

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When the internal temperature of the switch decreases from X (X>65°C, or X>149°F) to Y 
(60°C≤Y<65°C, or 140°F≤Y<149°F), the switch still keeps the PoE function disabled on all the 
ports.  

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When the internal temperature of the switch increases from X (X<60°C, or X<140°F) to Y 
(60°C<Y≤65°C, or 140°F<Y≤149°F), the switch still keeps the PoE function enabled on all the 
ports. 

 

The online upgrading of PSE processing software can update the processing software or repair the 
software if it is damaged. Before performing the following configuration, download the PSE processing 
software to the Flash of the switch. 

Follow these steps to upgrade PSE processing software online: 

Enter system view 

 

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Upgrade the PSE 
processing software 
online 

{ refresh | full } 

filename 

Required 
The specified PSE processing 
software is a file with the 
extension .s19. 

 

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In the case that the PSE processing software is damaged (that is, no PoE command can be 
executed successfully), use the full update mode to upgrade and thus restore the software. 

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The  refresh update mode is to upgrade the original processing software in the PSE through 
refreshing the software, while the full update mode is to delete the original processing software in 
PSE completely and then reload the software. 

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Generally, the refresh update mode is used to upgrade the PSE processing software. 

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When the online upgrading procedure is interrupted for some unexpected reason (for example, the 
device restarts due to some errors), if the upgrade in full mode fails after restart, you must upgrade 
in full mode after power-off and restart of the device, and then restart the device manually. In this 
way, the former PoE configuration is restored.  

 

You can update or repair the damaged PSE processing software through upgrading it.  

By executing the following command on any device in the fabric, you can upgrade the PSE processing 
software of all devices in the fabric by using the specified PSE processing software. For details of fabric, 
see the XRN Fabric part of this manual.