Difference of PoE vs PoE+ vs PoE++ ; PoE or Power of Ethernet is a technology that enable transmission of electric power along with data over ethernet cables. Two pairs of UTP cables are utilized to transmit power low Watt devices This has helped cut short the additional power adapter requirement for these low voltage devices such as IP Camera, WIFI Access points, IP Phones . Biometrics, Alarm systems and similar equipment’s. PoE has evolved over times and acquired additional power capabilities named after PoE+ & PoE++. Lets look at their difference in this very quick article.
PoE
- IEEE 802.3af Standard
- Standardized in Year 2003
- Can transmit a maximum of 15.4 Watts of Power
- Type of Devices that commonly use this standard are
- IP Telephones
- Wireless Access points
- Any ethernet compatible devices which requires less than 15 Watts to power up can use this standard
PoE+
- IEEE 802.3at Standard
- Standardized in Year 2009
- Can transmit a maximum of 25.5 Watts of Power
- Type of Devices that commonly use this standard are
- CCTV Cameras
- High End IP Phones
- Alarm Systems
- Any ethernet compatible devices which requires less than 25.5 Watts to power up can use this standard
PoE++
- IEEE 802.3bt Standard
- Standardized in Year 2018
- Can transmit a maximum of 51 / 71 Watts of Power
- Type of Devices that commonly use this standard are
- Televisions
- Laptops
- Any ethernet compatible devices which requires less than 25.5 Watts to power up can use this standard
Frequent PoE FAQ
Do you need special cable for poe ?
No. PoE does not require special cable. You can use PoE using any Cat 5e, Cat 6, Cat6e or latest generation cables. RJ 45 style connectors are used for both regular and PoE-enabled local area networks. PoE enabled switches are the power sources in most cases.
Will poe pass through a patch panel
Yes. As long as the connection is direct and a standard limit of less than 100 meters is satisfied, the Power will pass through patch panel.
Will poe pass through a coupler
Yes. As long as the connection is direct and a standard limit of less than 100 meters is satisfied, the Power will pass through a coupler of minimum quality.
Will poe hurt my computer
PoE wont hurt your computer as the power supply through PoE is not forced. Any devices that connects to a PoE , will draw only the energy required by the device even though the PoE capability is higher.
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