10-13
Planning and Implementation for the 5400zl/8200zl Switches
Configuration Examples
Planning and
Implementation for the
5400zl/8200zl Switches
Figure 10-6. Example of a 5406zl with two power supplies (J8712A and J8713A)
In this example (Figure 10-6) there is one J8712A and one J8713A power supply
supplying 1173 watts for PoE usage. This configuration offers 136 ports of
which all can be powered at 7.0 watts each, and offers eight ports for fiber
optic gigabit connectivity.
Note HP ProCurve Networking highly recommends that the two types of power
supplies are not mixed in the same 5406zl chassis.
One power supply (J8712A) could be used to supply PoE power at 273 watts
and the other power supply (J8713A) could be used as a secondary power
supply. If both power supplies are connected to different power sources, one
could backup the other in case of failure. However, if the J8713A power supply
fails, the J8712A can keep the switch running but cannot supply all the PoE
power that the J8713A was supplying. Therefore you need to plan very
carefully when using this configuration.
Power Supply
J8712A
Front
Power Supply
J8713A
273 watts
for PoE
900 watts
for PoE
Source of Power Watts Available # of Ports Powered and Average watts/
Port
Redundant # of Ports Powered and
Average watts/Port
Two Internal PoE
Power Supplies:
one J8712A
one J8713A
1173 (without
redundancy)
76 @ average 15.4 W each
136 @ average 7.5 W each
136 @ average 4.0 W each
17 @ average 15.4 W
39 @ average 7.5 W each
68 @ average 4.0 W each
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