Eps Operation; Operating Characteristics Of The Eps (J8714A); Power Supply Shelf Leds - HP 8200 zl Installation And Getting Started Manual

Installing the HP 8200 zl Switches
Installation Procedures

EPS Operation

The EPS has a mechanism for detecting that it is connected to a valid switch
with an EPS cable. When the EPS is connected to a powered switch it will
provide additional PoE power to the switch within 2 seconds.
C a u t i o n
Disconnecting the EPS (PoE power) cable with power flowing is not
supported, and could cause loss of PoE power to all network devices
connected to the switch. The Power Supply Shelf must be powered down
before disconnecting the EPS (PoE power) cable, if power is flowing. Only
the power supply to be disconnected must be powered down. The EPS cable
may be connected at any time.

Operating Characteristics of the EPS (J8714A)

The Power Supply Shelf has two EPS Ports. The EPS can provide a maximum
of up to 900 watts of PoE power to each of the two EPS ports depending on
which power supply is used. It is important to understand the PoE power
requirements of the 8200 zl switches because if the PoE power is not planned
and implemented correctly the end devices connected to the switch ports may
not receive power if an internal switch PoE power supply should fail. For
further information regarding the Power Supply Shelf PoE capabilities, see
the HP Power over Ethernet (PoE/PoE+) Planning and Implementation
Guide and the ProCurve Power Supply Shelf Installation and Getting Started
Guide, which is on the HP networking Web site.

Power Supply Shelf LEDs

The EPS LEDs are duplicated on the front and back of the device. The
following graphic shows an example of the front of the EPS. There are two
dual colored (green/orange) LEDs for each EPS port:
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■
2-22
Device Connected
Power Status