Power Over Ethernet; Poe Versions; Ethernet Cabling For Poe Devices; Table 2: Maximum Power Levels - Allied Telesis AT-IE300-12GP Installation Manual

Chapter 1: Overview

Power over Ethernet

PoE Versions

Ethernet Cabling
for PoE devices
26
Ports 5 to 12 on the AT-IE300-12GP Switch support Power over Ethernet
(PoE). With PoE, the switch can supply electrical power to network
devices over the same twisted pair cables that carry network traffic. The
feature can simplify network installation and maintenance because it
allows you to use the switch as a central power source for other network
devices.
Devices that receive their power over Ethernet cables are called powered
devices (PD). Examples of PDs include wireless access points, IP
telephones, web cams, and even other Ethernet switches. A PD
connected to a port on the switch receives both network traffic and power
over the same twisted-pair cable.
The AT-IE300-12GP Switch supports the following versions of Power over
Ethernet:
PoE (IEEE 802.3af)

PoE+ (802.3at)

Hi-PoE (proprietary implementation of 4-pair PoE)

Table 2 lists the switch ports that support PoE and the maximum power
levels.
Table 2. Maximum Power Levels
PoE Version Switch Ports
PoE
PoE+
Hi-PoE
The cable requirements for the twisted pair ports on the AT-IE300-12GP
Switch for powered devices are given in Table 3 on page 27. For cable
requirements for ports connected to non-PoE devices, refer to Table 1 on
page 25.
Maximum
Power Output
at Switch Port
5 to 12 15.4W
5 to 12 30.0W
9 to 12 60.0W
Maximum
Power at PD
12.95W
25.9W
51.8W