Users Guide

Dell PowerConnect 55xx Systems User Guide 157
The following is an example of the CLI commands:
Power over Ethernet
A Power over Ethernet (PoE) switch is a type of PSE (Power Sourcing
Equipment) that delivers electrical power to connected Powered Devices
(PDs) over existing copper cables, without interfering with the network
traffic, updating the physical network or modifying the network
infrastructure.
Using PoE eliminates the need to:
• Place all network devices next to power sources.
• Deploy double-cabling systems, significantly decreasing installation costs.
PoE can be used in any network that deploys relatively low-powered devices
connected to the Ethernet LAN. PDs are devices that receive power from the
PowerConnect power supplies, such as:
•IP phones
console# show system
Unit Type
---- ----------------------
2 PowerConnect 5548
Unit Main Power Supply Redundant Power Supply
---- ----------------- ----------------------
2 OK
Unit Fans Status
---- -------------
2 OK
Unit Temperature (Celsius) Temperature Sensor Status
---- ------------------------- ---------------------
2 41 OK
Unit Up time
---- ---------------
2 02,00:03:32