PoE means Power over Ethernet. This switch in addition to creating a LAN, also provides electric power to devices. PoE switches were introduced in 2003. Since then, they provide power to IP Camera, VoIP (Voice over Internet Protocol), Access Points, Printer, NAS, IP phones, LED Bulbs, etc.
For differences among types of switch and other information please visit here.
What are the PoE Standard Protocols ?
The table below describes the PoE Standards :-
Most of the PoE swtich adheres to 802.3af/at standard at present. But, in few years 802.3bt Type 3 and Type 4 will be prevalent as these were introduced recently in 2018. Netgear has already introduced 802.3bt Smart Switch – GS110TUP and D-Link – DGS-1100-10MPP. More about Smart Switches here.
Applications of PoE Switch
Below shows the application of PoE switches for 802.3af/at, 802.3bt Type 3 and 4 :-
Majorly, PoE Switches power Access Points and IP Camera. With 802.3bt 100W, future applications are now wide open. This ranges from LED Lighting, higher level higher access points, large audio speakers etc.
What is PoE Injector?
PoE Injector converts a non-PoE switch to handle Powered Devices (PD). PoE Injector just supplies electricity to PDs.
What are the working modes in PoE?
There are three modes of working in PoE switch. These are VLAN, QoS and Extend modes.
Extend Mode – The switch provides power supply upto 250 meter.
VLAN Mode – This mode isolates certain LAN ports into VLANs. More about VLAN here.
QoS – This mode prioritizes network for a certain service or network path.
Comparison of PoE Switches
Below compares the PoE Switch as follows :-
Below table compares all the PoE switch among D-Link, Tenda, TP-Link and Netgear :-
We will divide the analysis on basis of ports. As we can see there are 4 port, 8 port, 16 ports and 24 ports PoE switches available.
4 ports PoE switch : All the PoE switch in this category perform in similar fashion. Working Modes – VLAN, QoS, and Extend are covered in D-Link. Moreover, 2 uplink ports are also offered. Price is also optimal. Both Netgear and TP-Link does not offer VLAN which is important. TP-Link also has Extend feature (250 meter). Overall, D-Link > Tenda > TP-Link > Netgear.
8 ports PoE switch : D-Link PoE Switch DGS F1010 PoE Switch offers best of the features. All Ports are Gigabit and can work on Extend Mode (250 mtr). It offers 2 uplink port also. Overall, D-Link > Netgear > Tenda > TP-Link
16 ports PoE switch : In Fast Ethernet category, D-Link > TP-Link > Tenda. D-Link is energy efficient. All the ports support Extend mode. Moreover 2 Fiber and 2 Gigabit ports are offered. When Idle, D-Link ports don’t use electricity.
In Gigabit Category, Tenda > D-Link > Netgear. Tenda offers best PoE budget. Though the downside is full wattage would be used as it is not 802.3az compliant. D-Link ticks better in Extend mode and VLAN support.
24 ports PoE switch : Overall, Tenda > TP-Link > Netgear. Tenda offers best PoE budget of 370 W. Moreover, all working modes are supported.
D-Link PoE Comparison
Below table gives the comparison on D-Link switch :-
TP-Link PoE Comparison
Below table gives the comparison on TP-Link switch :-
Netgear PoE Comparison
Below table gives the comparison on Netgear switch :-
Tenda PoE Comparison
Below table gives the comparison on Tenda switch :-
Please click on links for Unmanaged Switch, Smart Managed and Fully Managed switch. Also, for more about switch please click here.
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