The Application of PoE

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With the development of communication
technology, different communication products are available on the market. Among
them, there are some products popular with home network deployment, such as IP
phone, wireless access point and IP camera. Recently, PoE technology is highly
recommend for home network application. It is an IEEE standard for
simultaneously transmitting data and low-voltage power throughout a network
using a single Ethernet cable. This article will introduce the application of
PoE.

 

PoE Devices

Before we come to the application of
PoE, let’s have a look at PoE devices at first.

 

PoE
Switch

A PoE switch is a network switch that
has Power over Ethernet injection built-in. It is straightforward to add PoE to
your network. Simply connect other network devices to the PoE switch as normal,
and the switch will detect whether they are POE-compatible and enable power
automatically. PoE switches are available to suit all applications, from
low-cost unmanaged edge switches with a few ports, up to complex multi-port
rack-mounted units with sophisticated management.

 

PoE Injector and PoE Splitter

A PoE injector is used to add PoE
capability to regular non-POE network links. It can be used to upgrade existing
LAN installations to PoE, and provide a versatile solution where fewer PoE
ports are required. A PoE splitter also supplies power to a device and it is
useful for deploying devices such as access points that are not POE ready and
where there are no nearby AC outlets. The main difference between PoE injector
and PoE splitter is that PoE splitter splits the power from the data to a
separate input that the device can use, and there will be two cables for
output: one for data and one for power. Here is a figure that show typical PoE
Injector and PoE Splitter applications.

 

From the figure we can see that,
upgrading each network connection to PoE is as simple as patching it through
the PoE injector, and as with PoE switch, power injection is controlled and
automatic. It is also possible to upgrade powered devices to PoE by using a PoE
splitter.

 

Why Should I Use PoE Devices?

Without PoE, you have to make a choice
between running a power cable to the area where you want to deploy a network
device or deploying network devices based on where existing power outlets are
available. PoE provides greater flexibility and ensures that you will never
have to compromise when deploying network devices. It dramatically simplifies
the process of installing APs, IP cameras, IP phones, and other PoE enabled
devices in hard-to-reach, outdoor, and remote areas.

 

Conclusion

With PoE technology, PoE switch is
specifically designed to supply power to network devices. Managed and unmanaged
PoE switch are available on the market, allowing you to transmit electrical
power and data via a single network cable. This makes it easier than ever to
expand your network into areas where power sockets are not accessible. FS.COM
provides quality PoE/PoE+ switch for network deployment, such as 8 port
PoE/PoE+ managed switch, 24 port PoE/PoE+ managed switch and 48 port PoE+
managed switch.