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Switch model Minimum internal Maximum internal
Internal +
external
5406zl 1 2 4
5412zl 2 4 6
Table 1. Minimum and maximum power supply support
When deciding on which and how many power supplies to configure for a 5400zl series switch, the
following criteria can be used to guide the decision:
• How much power will be required for each PoE port, full (15.4 watts) or phone (8 watts) power?
• How many network devices will require power (how many PoE ports are needed)?
• Is redundant power required (for internal power and/or PoE power)?
Note that the power supplies provide a “pool” of power for all line interface modules to draw from;
that is, PoE power is not limited on a per line interface module basis.
Power supply
configuration
Total PoE
power
(watts)
Number of PoE ports
at 15.4W
Number of PoE ports
at 8W
No
redundancy
With 1+1
redundancy
No
redundancy
With 1+1
redundancy
1—875W
(J8712A)
273 17 N/A 34 N/A
2—875W
(J8712A)
546 35 17 68 34
1—1500W
(J8713A)
900 58 N/A 112 N/A
2—1500W
(J8713A)
1800 116 58 144 * 112
4—1500W **
(J8713A)
3600 144 * 114 144 * 144*
Table 2. Examples of maximum number of PoE ports for 5406zl switch
* 5406zl switch fully loaded with 6 modules provides up to 144 ports
** Using the HP ProCurve Switch zl Power Supply Shelf
The table above shows examples of the maximum number of PoE ports that can be supported by the
5406zl switch. One section shows the maximum number of PoE ports at full power (Class 0 – 15.4
watts), and the next section shows the maximum number of PoE ports at phone power (8 watts) for
each configuration. These categories are further subdivided based on whether a second internal power
supply is used to provide power redundancy in the event one of the power supplies fails.