HP procurve J8164A - Manual (Page 10)

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Introduction
Overview
The HP ProCurve Switch xl PoE Module (J8161A) is a module for the HP
ProCurve 5300 xl Switch and has 24 auto-sensing 10/100-TX RJ-45 ports. All
24 ports are capable of supplying PoE power. However, for the module itself
to be able to supply PoE power it first must be connected to an EPS port on
an HP ProCurve 600 Redundant and External Power Supply (J8168A), here-
after referred to as the HP 600 RPS/EPS.
The Switch 2600-PWR Series devices can be connected to an HP 600 RPS/EPS
and receive full redundant power from the RPS part of the unit for switch
operation, if the internal power supply in the switch fails. If multiple switches
are connected to the RPS ports and several switches lose power at the same
time, the switch attached to the lowest RPS port number receives power. The
HP 600 RPS/EPS unit can provide all the power necessary to keep the switch
running.
EPS power from the HP 600 RPS/EPS device is the PoE capability of the device
and supplies backup and additional power for the ports of the 2626-PWR,
2650-PWR switch devices. It also provides PoE power to the HP ProCurve
Switch xl PoE Module.
These switch devices are designed to be used primarily as high-density wiring
closet or desktop switches. With these switches you can directly connect
computers, printers, and servers to provide dedicated bandwidth to those
devices, and you can build a switched network infrastructure by connecting
the switch to hubs, other switches, or routers. In addition, they support the
PoE standard, IEEE 802.3af, and can supply power over a twisted-pair cable
to power devices such as telephones and wireless access points.
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