Power Over Ethernet - Hirschmann RS20 Reference Manual

Basic Settings

1.5 Power over ETHERNET

Devices with Power over ETHERNET (PoE) media modules or PoE ports
enable you to supply current to terminal devices such as IP phones via the
twisted-pair cable. PoE media modules and PoE ports support Power over
ETHERNET according to IEEE 802.3af.
On delivery, the Power over ETHERNET function is activated globally and at
all ports.
Nominal power for MS20/30, MACH 1000 and PowerMICE:
The device provides the nominal power for the sum of all PoE ports plus a
surplus. Because the PoE media module gets its PoE voltage externally, the
device does not know the possible nominal power.
The device therefore assumes a "nominal power" of 60 Watt per PoE media
module for now.
Nominal power for OCTOPUS 8M-PoE:
The device provides the nominal power for the sum of all PoE ports plus a
surplus. Because the device gets its PoE voltage externally, the device does
not know the possible nominal power.
The device therefore assumes a "nominal power" of 15 Watt per PoE port for
now.
With "Function on/off" you turn the PoE on or off.
With "Send Trap" you can get the device to send a trap in the following
cases:
– If a value exceeds/falls below the performance threshold.
– If the PoE supply voltage is switched on/off at at least one port.
Enter the power threshold in "Threshold". When this value is exceeded/
not achieved, the device will send a trap, provided that "Send trap" is
enabled. For the power threshold you enter the power yielded as a
percentage of the nominal power.
"Nominal Power" displays the power that the device nominally provides
for all PoE ports together.
"Reserved Power" displays the maximum power that the device provides
to all the connected PoE devices together on the basis of their
classification.
"Delivered Power" shows how large the current power requirement is at
all PoE ports.
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1.5 Power over ETHERNET
Release 6.0 07/2010
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