3com 5500-ei pwr Instrução De Instalação

 

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When configuring PoE, go to these sections for information you are interested in: 

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PoE Overview 

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Power over Ethernet (PoE)-enabled devices use twisted pairs through electrical ports to supply power 
to the remote powered devices (PD) in the network and implement power supply and data transmission 
simultaneously. 

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Reliability: The centralized power supply provides backup convenience, unified management, and 
safety. 

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Easy connection: Network terminals only require an Ethernet cable, but no external power supply. 

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Standard: PoE conforms to the 802.3af standard and uses a globally uniform power interfaces; 

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Bright application prospect: PoE can be applied to IP phones, wireless access points (APs), 
chargers for portable devices, card readers, network cameras, and data collection system. 

PoE consists of three components: power sourcing equipment (PSE), PD, and power interface (PI). 

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PSE: PSE is comprised of the power and the PSE functional module. It can implement PD 
detection, PD power information collection, PoE, power supply monitoring, and power-off for 
devices. 

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PD: PDs receive power from the PSE. PDs include standard PDs and nonstandard PDs. Standard 
PDs conform to the 802.3af standard, including IP phones, Wireless APs, network cameras and so 
on. 

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PI: PIs are RJ45 interfaces which connect PSE/PDs to network cables. 

PoE-capable 5500-EI switches include: 

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Switch 5500-EI PWR 28 Port 

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Switch 5500-EI PWR 52 Port 

A PoE-capable Switch 5500-EI has the following features: 

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As the PSE, it supports the IEEE802.3af standard. It can also supply power to the PDs that do not 
support the 802.3af standard. 

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It can deliver data and current simultaneously through data wires (1,2,3,and 6) of category-3/5 
twisted pairs.