Grounding - Hirschmann BAT54-F Series User Manual

Power over Ethernet (PoE) -
power supply via the LAN cable
Hirschmann Wireless Routers are prepared for the PoE (Power over Eth-
ernet) procedure and conform to the 802.3af standard. PoE-capable net-
work devices can be elegantly supplied with power via the LAN cable.
This makes it unnecessary to have a separate power connection for every
basis station, thus considerably reducing the work involved in the instal-
lation.
The power is input via the wire pairs transmitting the signal (IEEE 802.3af,
mode A).
The power supply to the LAN is input centrally, via a PoE injector or a
power hub/power switch.
Warning! In a PoE installation, only use devices that adhere to the
802.3af standard! No warranty claims can be made for damage caused
by the use of impermissible devices.
2.2.7

Grounding

A separate anti-torsion screw connection on the housing is provided for the
function ground. It is indicated by the function ground symbol. The function
ground is electrically connected to the switching ground and to the metal
housing of the device.
For the ground wire, use a copper wire with a cross section of 4 mm
2
mm (including any terminal sleeve used), and implement the grounding
of the device via the screw connection.
Clamp the ground wire between the two rectangular fastening plates - as
shown in the figure below - and fasten the screw.
Make sure that the ground wire is not in direct contact with the aluminum
housing of the device.
BAT54-F
Release 12/07
2
to 6
25