Power over Ethernet (PoE) allows network switches to transmit both power and data through an Ethernet cable at the same time.
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.
PoE is an IEEE standard for simultaneously transmitting data and low-voltage power throughout a network using a single Ethernet cable. PoE dramatically simplifies the process of installing APs, IP cameras, IP phones, and other PoE enabled devices in hard-to-reach, outdoor, and remote areas.
Benefits of Using PoE?
- Lower Infrastructure Costs – A single cable supports both data and power transmission. PoE solutions also require fewer power adapters.
- Enhanced Deployment Flexibility – Freedom from fixed power outlets provides more placement options and allows for deployment in complex environments.
- Centralized Control – A centralized switch can manage power allocation to all devices.
- Simplified Installation – Use existing network infrastructures for rapid deployment, without the need for an electrician.
Typical Applications and Power Guide
-IP Phones (PoE supported)
-Wireless Access Points (PoE supported)
-IP Camera (PoE supported)
PoE and PoE+
PoE devices utilize the original PoE standard, IEEE 802.3af, which provides up to 15.4W of DC power to each device. The latest standard, IEEE 802.3at, is known as PoE+ and provides up to 30W of power to each device.
The following guidelines are meant to provide general estimates for power consumption. Actual power requirements vary and should be confirmed for each model when determining your PoE budget requirements.
IP Phone: 3- 7W
Access Point: 8W for a/g radios and upwards of 20W for n radios
IP Camera: 7- 10W
PZT Camera: 15 -25+ W