Power over Ethernet Splitter
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Frequently Asked Questions about PoE Splitter
Do I need a PoE splitter?
If you have powered devices (such as IP cameras, VoIP phones, IP door readers, etc.) that are not PoE compliant, you may need a PoE splitter.
What is a PoE splitter?
A Power over Ethernet (PoE) splitter is a single port adapter that provides DC power for non-PoE powered devices.
Can a PoE splitter be used as an injector?
Yes. A PoE splitter can be used to connect a non-PoE powered device to a PoE switch, hub, or PoE injector.
What’s the difference between a PoE splitter and a PoE injector?
The PoE splitter and PoE injector are commonly used PoE devices; however, they work in opposite ways. A PoE injector (also called a midspan) injects power to data that comes from a non-PoE switch (or endspan). It delivers both power and data to the powered device.
While a PoE splitter also supplies power to powered devices, it works in the opposite direction by splitting the power from the data into separate cables and delivering it to powered devices.
What are the benefits of PoE?
- Easy, low-voltage installation
- Increased flexibility and control
- Enables Data Analytics
What is a PoE power budget?
A power budget is the maximum amount of power a device can send through an Ethernet cable.
What are the best devices for a PoE network?
- PoE switch
- PoE injector
- PoE hub
- PoE splitter
- PoE extender
The PoE Splitter and How it Works
Power over Ethernet (PoE) is a technology that enables power source equipment to supply electrical power and data to powered devices (PDs) over a single twisted pair network cable. To better understand the PoE network system, this article will focus on the PoE splitter—what it is and how it works.
What is a PoE splitter?
PoE splitters are devices used in conjunction with power source equipment (PSE) such as PoE switches and PoE injectors. While not strictly a PSE, the PoE splitter is an intermediary device that supplies power in a PoE network. PoE splitters differ from PoE PSEs. Instead of taking power and data input and turning them into a singular output, the PoE splitter supplies power by separating (splitting) the power from the data and feeding it into a different input that can be used by a non-PoE PD. In general, PoE splitters are used when an IT professional needs to place a non-PoE-compatible device in an isolated area without access to an electrical outlet.
The unit itself is quite compact and consists of two cables—one cable provides power, the other supplies data. Simply put, the PoE splitter upgrades the non-PoE device to PoE.
VX-Pi1000SP Gigabit PoE Splitter
How a PoE Splitter Works
There are two scenarios that call for the use of a PoE splitter. One is a network in which a PoE switch needs to be connected to a non-PoE-compliant device. The other is a network where data is sent through a non-PoE network switch or router with PoE-compliant or non-PoE compliant end devices.
In the case where a PoE switch delivers both power and data but needs to power a non-PoE device:
The input cable connects directly to the PoE switch. The PoE splitter has two output cables: one to supply power and the other to supply data to the non-PoE device. The PoE switch sends both power and data to the PoE splitter over one Ethernet cable. The PoE splitter then separates the power and the data into its two different cables, and then sends both onto the non-PoE end device.
Should there be a combination of non-PoE and PoE-compliant devices (as in the second scenario described above), the PoE splitter should never be directly connected the the non-PoE switch. In this case, a PoE injector will be needed to supply power.
PoE Splitters and PoE Injectors Often Work Together
When building a strong PoE network, both the PoE splitter and PoE injector are major devices that are often deployed. And they frequently work in pairs. For example, the PoE injector sends both power and data to the PoE splitter on a single cable. The PoE splitter then splits the power from the data into two separate cables to make network devices work.
How to Install a PoE Splitter
As was discussed above, a PoE splitter is generally used when the devices to be powered (such as IP cameras, VoIP phones, WiFi radios, and IP door readers are not PoE compliant.
Installation is simple and can be completed in mere minutes. Let’s take the example of connecting a non-PoE IP camera to a PoE switch:
Step 1: Connect the PoE splitter’s two output cables to the appropriate interfaces of the IP camera—one for data, the other for power.
Step 2: Next, connect one end of the UTP cable (we recommend Cat5e or better) to the PoE splitter and the other end to the Gigabit RJ-45 port on the switch.
Step 3: At this point, power and data are ready to be transported to the IP camera.
PoE Splitter Features
- Can be IEEE 802.3af, 802.3at, or 802.3bt compliant
- Two detachable power cables of different sizes (added flexibility)
- Short circuit protection
- Temperature monitoring
- Protects wireless LAN devices from power surges
- Has an adjustable output range of 12V, 9V, 7.5V, and 5V
- Supplies DC power and data to non-PoE devices
- Ideal for remote power-feeding applications, such as Bluetooth AP, VoIP phones, wireless access points, and IP cameras
- Comes in a hardened industrial version
- Provides reliable and safe power over existing Ethernet infrastructure
How a PoE Splitter Saves Money
A PoE splitter is an inexpensive piece of equipment that enables a user to add networking devices to a remote location without the expense of installing an electrical outlet. It also allows users to keep more expensive legacy devices and connect them to newer, more efficient PoE devices.
A Word About PoE
Power over Ethernet is a technology that enables both power and data transmission over a single Ethernet cable.
Power over Ethernet (PoE) Standards
The Institute of Electrical and Electronics Engineers (simply called the IEEE) has defined three 802.3 standards for PoE technology. Each standard has a different power budget. Following are the particulars:
- Type 1 (802.3af, also called PoE) has a power budget of 15.4 watts (W) and delivers 12.95W to the device after normal power dissipation in the cable.
- Type 2 (802.3at, or PoE+) has a maximum power budget of 30W, with 25.5W available to the PD.
- Types 3 and 4 (802.3bt, or PoE++) increase the maximum power to 60 to 100W and use all four twisted pairs of wires to transport the higher power. Type 3 has a max power of 60W, with 51W to the PD. Type 4 has a power budget of 95 to 100W, with 71W remaining to power up the PD.
Generally speaking, PoE splitters are compliant with IEEE 802.3af/at standards. Industrial PoE splitters usually adhere to the IEEE 802.3bt standard.
What to Look For When Buying a PoE Splitter
1) Make sure the PoE splitter purchased can work with the powered devices in the network.
2) Most PoE splitters comply with the IEEE 802.3af and 802.3at standards. Make sure the PoE splitter has enough power budget to power the PDs.
3) Make sure the PoE splitter’s PoE power standard matches with any PoE-compliant switches and injectors in the network.
To Sum Up
If your network is a combination of non-PoE-compatible devices, the PoE splitter is the ideal solution. These devices are inexpensive, can add years to the life of a network, and can save a good amount of time and money by eliminating the need for electrical outlets.
Versa Technology PoE Splitters
Versa Technology’s PoE splitters give users the ability to pair PoE power sourcing equipment (PSE) with non-PoE powered devices (PDs). PoE splitters essentially split the simultaneous transmission of data and power of an Ethernet cable and redirect power and data on separate interfaces. With a Versa Technology PoE splitter, you can easily convert your non-PoE PD into a PoE-ready device.
A Closer Look at Our PoE Splitters
VX-Pi1000SP Gigabit PoE Splitter
This excellent PoE splitter features efficient power management with 10/100/1000Mbps. It is very budget-friendly and easy to use. The VX-Pi1000SP also has the following features:
- IEEE 802.3af compatible Power over Ethernet, IEEE 802.3/802.3u 10/100 Base-TX
- Splits the 38-56V DC power over RJ-45 Ethernet cable into four different DC outputs
- LED indicators signal power input indication
- Distance up to 100 meters
- Adjustable four different output voltage options (5V/2A, 7.5V/1.33A, 9V/1.1A, and 12V/0.86A) to fit various devices.
- Works with EIA568, category 5, 4-pair cables for 10Base-T or 100Base-TX
- FOR INDOOR USE ONLY
S69-210 Industrial Gigabit 802.3bt PoE Splitter
Versa Technology’s S69-210 802.3bt PoE splitter works with any power sourcing equipment (SE) that also supports the 802.3at/bt standards. This top-of-the-line industrial PoE splitter has the following features:
- 2 10/100/1000Mbps RJ-45 Port
- 1 DC power output interface
- Supports IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3at, and IEEE 802.3bt standards
- PD voltage input range 69-57V
- Power input budget of 90W
- Data and power carried over the same cable
- Output Power: 72W DC, 12V/6A full load
- Operating temperature: -40°C to 75°C (-40°F to 167°F)
- Storage temperature: -40°C to 80°C (-40°F to 176°F)
- Surge protection: 4KV
To learn more about Power over the Ethernet, click here.