Optional) Install Another Power Supply - HP 5400R zl2 Series Nstallation And Getting Started Manual

Installing the HP 5400R zl2 Switches
Installation Procedures

3. (Optional) Install Another Power Supply

C a u t i o n
The 5400R zl2 switches are designed to provide continuously operating PoE
or PoE+ power in the event of a single power supply failure with only a loss
of PoE or 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 chapter 2 and 4 of the PoE (Power over Ethernet) Devices
Planning and Implementation Guide) 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 re-plug it for each power supply one at a time.
The following are the addition power supplies that can be installed in the back
of the 5400R switches. The 5406R zl2 switch can hold up to two power supplies
and the 5412R zl2 switch can hold up to four power supplies.
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■
■
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To prevent overloading of the building circuits breakers, the second power
supply must be connected to a different AC power source from the other
supply. This also helps with redundancy, if one AC power source fails, the
switch will continue to run.
Install the second power supply into power slot number 2 as shown in Figure
2-3. Although these procedures show the 6-slot chassis, the procedures are
the same for the 12-slot chassis. The slot cover can be removed with either a
flat-bladed or Torx T-10 screwdriver. Retain the slot cover for future use.
N o t e
Any combination of J9828A, J9829A and J9830A power supplies can be used
in the same switch. However, HP recommends to only use like supplies in a
unit for more deterministic behavior in event of a power supply failure.
2-12
J9828A: 630W of max power of system 12V power or 275w of max PoE
power. Total Max power is 700w.
J9829A: 630W of max power of system 12V power or 900W of max PoE
power. Total Max power is 1100W.
J9830A (with 2 power cords): 630W of max power of system 12V power
or 2500W of max PoE power. Total Max power is 2750W.
J9830A (with MAIN power cord only): 630W of max power of system 12V
power or 1100W of max PoE power. Total Max power is 1400W.