LANCOM L- 54ag Wireless – LANCOM L- 54g Wireless – LANCOM IAP- 54 Wireless
Chapter 2: Installation
17
EN
Power-over- Ethernet – elegant power supply through the LAN wiring
LANCOM 54 Wireless base stations are prepared for the PoE power supply (Power-over-
Ethernet), corresponding to the 802.3af standard. PoE-enabled network devices can be com-
fortably supplied with power feeding through the LAN wiring. A separate external power sup-
ply for each base station is unnecessary, which reduces the installation complexity
considerably.
The power feeding into the LAN happens at a central position, either via a PoE power injector,
or via a so-called powerhub/powerswitch. For the LAN wiring is to note that all 8 wires must
be available by the cabling. PoE feeds the power over those four wires, which are normally
not used for data transfer.
The PoE supply works only in such network segments, in which exclusively PoE-capable
devices are operating. The protection of
network devices without PoE support is
guaranteed by an intelligent mechanism,
that tests the network segment for
devices without PoE support before start-
ing the PoE power feeding. The power is
only switched onto the segment, if no
devices without PoE support were
detected.
In a PoE installation use exclusively devices which correspond to the 802.3af
standard! For damages caused by inadmissible devices no warranty may be
claimed.
Power Injector
Hub/Switch
Installation of single devices
hub/switch
powerhub/powers
witch
LAN without power
LAN with power
Installation of several devices
