ProCurve Switch xl Modules Installation Guide 2004-05

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HP ProCurve Switch xl Modules
Installing the Modules
PoE Power Requirements
When a powered device (PD) is initially connected to a PoE port, a minimum of 15.4
watts of available power is required to begin the power-up sequence. This 15.4 watts
is needed to determine the type of PD requesting power. Once the power classification
is determined and power is supplied, any power beyond the maximum power
requirements for that class of PD is available for use by other ports.
In the default switch configuration all PoE ports have a Low priority. If the switch
has less than 15.4 W of PoE power available, the switch transfers power from lower-
priority ports to higher-priority ports. Within each priority class, a lower numbered
port is supplied power before a higher numbered port. For more information refer to
“Power over Ethernet (PoE) Operation” in the Management and Configuration Guide
Disconnecting a PD from a port causes the switch to stop providing power to that
port and makes that power available to other ports configured for PoE operation. For
more information on PoE power requirements refer to the HP ProCurve PoE
Planning and Implementation Guide that came with your HP 600 RPS/EPS.
PoE Module LEDs
Port LEDs
There are two LEDs for each port:
■ The Link LED illuminates with a valid 10base-T or 100base-TX connection.
■ The Mode LED illuminates according to the LED mode selected on the chassis
and the LED mode selected on the HP ProCurve Switch PoE xl module. If the
module’s LED mode selection is Std (standard), then the Mode LED behaves as
other HP ProCurve switch modules:
# of Modules being Powered Watts Available # of Ports Powered and Average
Watts/Port
One Module 408 24 @ average 15.4 W each
Two Modules 204/each module 24 @ average 7.6 W each