10/10/03
Power Over Ethernet
90-100584-004
Airespace Product Guide
24
About Power Over Ethernet
Power Over Ethernet
Airespace Wireless Switches and WLAN Appliances and Airespace APs supports 802.3af-compliant
Power over Ethernet (PoE), which can reduce the cost of discrete power supplies, additional wiring,
conduits, outlets, and installer time. PoE also frees installers from having to mount
or other powered equipment near AC outlets, providing greater flexibility in positioning Airespace
APs for maximum coverage.
When you are using PoE, the installer runs a single CAT-5 cable from each Airespace AP to the
PoE-equipped
Airespace Switches and Appliances
or other network element, or to a PoE power hub.
When the PoE equipment determines that the Airespace AP is PoE-enabled, it sends 48 VDC over the
unused pairs in the Ethernet cable to power the Airespace AP.
Note:
Airespace APs can receive power from the Airespace Wireless Switch or any other
network device conforming to the IEEE 802.3af standard.
Note:
Each Airespace AP can also receive power from an
The Airespace Wireless Switch can be ordered with or without PoE, as required. It can be ordered with
internal PoE or an external third-party PoE hub. Contact Airespace for recommended external PoE hubs.