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Chapter 19 Introduction

PoE12-3PD User’s Guide

2

19.2 Features

The following are the essential features of the PoE12-3PD.

• Supports IEEE802.3 10Base-T Ethernet, 802.3u 100Base-Tx Ethernet, 802.3ab 1000Base-T Ethernet.

• 10 Mbps/100 Mbps/1 Gbps Ethernet RJ-45 ports.

• The UPLINK port supports IEEE802.3bt PoE standard. The ports 1-3 support IEEE802.3at and 802.3af PoE

standard.

• Supports IEEE802.3x flow control.

• Supports up to 2K MAC addresses.

•

19.2.1 Power over Ethernet (PoE)

The PoE12-3PD provides a source of power through its Ethernet ports. Each device that receives power

through an Ethernet port is a Powered Device (PD). The PoE12-3PD can adjust the power supplied to

each PD according to the PoE standard the PD supports.

The following are the PoE standards for PoE12-3PD:

• IEEE 802.3af Power over Ethernet / PoE

• IEEE 802.3at Power over Ethernet / PoE+

• IEEE 802.3bt Power over Ethernet / PoE++

The following table describes the PoE12-3PD’s PoE information.

Table 59 PoE Standards of PoE12-3PD Ports

PORT PoE STANDARD PoE POWER BUDGET

Port 1/Port 2/Port 3 IEEE 802.3af

IEEE 802.3at

The PoE power budget depends on the PoE standard

the uplink PoE switch or PoE injector supports:

• 802.3af - 7W

• 802.3at - 19W

• 802.3bt - 45W

UPLINK Port IEEE 802.3af

IEEE 802.3at

IEEE 802.3bt

Table 60 PoE Standards

PoE FEATURES PoE PoE+ PoE++

IEEE Standard IEEE 802.3af IEEE 802.3at IEEE 802.3bt

PoE Type Type 1 Type 2 Type 3

PoE12-3PD Port Power

IEEE Power Classification Class 0, 1, 2, 3 Class 4 Class 5, 6

Maximum Power Per Port 15.4W 30W 60W

Port Voltage Range 44-57V 50-57V 50-57V

Cables

Twisted Pairs Used 2-pair 2-pair 4-pair

Supported Ethernet Cables Cat3/24 AWG or better Cat5 or better/24 AWG

or better

Cat5 or better/24 AWG

or better

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