Planning And Implementation For The Series 5400Zl Switch; Planning Your Poe Configuration - HP ProCurve zl Series Planning And Implementation Manual

Planning and Implementation for the Series
5400zl Switch
This chapter discusses the planning process a user should follow to
successfully implement a PoE Series 5400zl Switch. After understanding what
PoE is and its operating rules, the next step to implementation is planning.
See Appendix A for an example list of considerations during the planning
phase.

Planning Your PoE Configuration

This section assists you in building a reliable and, if required, redundant PoE
configuration. Using the following examples you can plan, build, and connect
your PoE devices quickly and easily.
Your configuration may vary however this section discusses some of the more
common configurations.
C a u t i o n
The Series 5400zl switches are designed to provide continuously operating
PoE power in the event of a single power supply failure with only a loss of
PoE power to lower priority ports.
If more than one power supply fails while the switch is at or near maximum
operating power (that is, the sum total of all PoE supply capacity minus the
largest supply, see Maximum PoE Power on
for power configurations), loss of all PoE power may result.
To return PoE power to the ports, without causing the switch to reboot, when
there are two or more power supplies still supplying 12V power, unplug the
power cord for 5 seconds and replug it for each power supply one at a time.
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