PoE (Power Over Ethernet) refers to the transmission of data signals for IP-based terminals (e.g. IP telephones, WLAN access point SAPs, network cameras, etc.) without any changes to the existing Ethernet Cat.5 cabling infrastructure. It also provides DC-powered technology for those devices.
Main Features of PoE switch
Cost-saving
Easy to use and convenient for maintenance
Web-management optional
Secure to use
Composition: PSE and PD
Connecting way: Mid-span and End-span
The Classification of PoE Switch
1. Standard PoE Switch
Standard PoE switch is also well-known as a 48V switch; they are compatible with IEEE802.3af/at. PSE and PD are 2 essential parts in a complete PoE system. POE switch is one kind of PSE device. Generally speaking, PSE works as the administrator and PD is the ending device that is to be powered.
2. Non-standard PoE Switch
Non-standard PoE switch is known as 24V POE. There is no auto-detection before the power supply. So there is a risk of burning. It has been gradually replaced by 48V standard POE.
Working Process of Standard POE Switch
Below is a connecting diagram for our gigabit POE switch 2 uplink + 8 POE ports.
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