HP J8697A Planning And Implementation Guide

4-18
Planning and Implementation for the Series 5400zl Switch
Planning Your PoE Configuration
Planning and
Implementation for the
Series 5400zl Switch
Mixed J8712A and J8713A Configurations
Although mixing power supplies is not recommended the following
demonstrates the most common usages. Refer to page 4-9 for the discussion
on failover in a mixed power supply environment.
Figure 4-13. Example of a 5412zl with three power supplies (two J8712A and one
J8713A)
This configuration is an example of three power supplies two J8712As
supplying 546 watts and one J8713A supplying 900 watts for a maximum of
1446 watts. Therefore out of the total 288 available ports, 93 can be powered
at 15.4 watts each.
Redundancy now becomes and issue. You can use the one J8713A (900 watts)
to backup the two J8712As if either one of them fail, but you cannot use the
two J8712As to backup the J8713A. They don’t have enough PoE power.
Also by only using one power supply for redundancy, the J8713A, it will only
be able to power 6 module slots should both of the J8712As fail. Thereby,
possibly not being able to supply all ports with PoE power depending on which
modules and which ports were configured to supply PoE power.
BackFront
273 Watts
for PoE
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
Three Internal PoE
Power Supplies: two
J8712As one J8713A
1446 (without
redundancy)
• 93 @ average 15.4 W each
• 206 @ average 7.0 W each
• 288 @ average 4.0 W each
• None

HP J8697A Specifications

General

Brand	HP
Model	J8697A
Category	Switch
Language	English