154
Power over Ethernet
Power-sharing with the Nortel Ethernet Routing Switch 4548GT-PWR and
the Nortel Ethernet RPS 15
"Power availability for power sharing with external power source" (page 154)
shows the available PoE power when you configure an Nortel Ethernet
Routing Switch 4548GT-PWR or 4550T-PWR for power sharing along with
an external power source.
Power availability for power sharing with external power source
Power Source
Available Power for Powered Devices
AC
320 W
Nortel Ethernet RPS 15
320 W
Total Power (Power Sharing)
740 W
With the addition of the Nortel Ethernet RPS 15, you have a total of 740 W
of PoE non redundant power, which provides up to 48 ports to be powered
at 15.4 W.
Power Supply Unit (PSU) option
An external power source (Nortel Ethernet RPS 15) can provide redundant
power to the Nortel Ethernet Routing Switch 4548GT-PWR or to the
4550T-PWR. That is, the power fails over to the Nortel Ethernet RPS 15 in
case a problem occurs with the switch internal power.
The following figure illustrates the use of the4548-GT-PWR switch with the
Nortel Ethernet RPS 15 as an external power source with RPS configuration.
Nortel Ethernet Routing Switch 4500 Series
Overview — System Configuration
NN47205-500
02.01
Standard
5.0
23 February 2007
Copyright © 2007, Nortel Networks
Nortel Networks Confidential
.