HP Power over Ethernet (PoE/PoE+) Planning and Implementation Guide

1-3
Introduction
Overview
Power over Ethernet connections to embedded computers will allow a less
expensive installation (no AC cabling, lower labor costs), facilitate updating
the installation and repositioning of end devices (wireless access points,
security cameras, and so forth) without electricians, while maintaining full
control over every node through the internet.
Figure 1-1 shows a typical system implemented to power telephones and
wireless access points. The PoE Ethernet switches are installed to supply
power over the twisted pair LAN cables to run phones or other appliances as
required.
Figure 1-1. Example of a Typical PoE Implementation
HP 5406zl Switch
HP 3500yl-48G-PWR
Switch
HP 3500yl-24G-PWR
Switch
Wireless
Access
Points
Cameras
Cameras
Phones
Phones
Mitel 3300 IP
PBX
Wireless
Access
Points
HP 620
RPS/EPS
Power Supply Shelf