Installation guide
Step 4: Choose your power supply
or supplies
There are three power supplies available for the
HP ProCurve Switch 8200zl and 5400zl series.
Table 3. HP ProCurve Switch zl power supplies
Product
number Supply
System
power
PoE
power
Power main
requirements
J8712A HP ProCurve
Switch zl 875 W
Power Supply
600 W 273 W 110 V @ 12 A
220 V @ 5.5 A
J8713A
1
HP ProCurve
Switch zl 1500 W
Power Supply
600 W 900 W 220 V @ 10 A
only
J9306A HP ProCurve
1500 W PoE+ zl
Power Supply
600 W
600 W
300 W
900 W
110 V @ 13 A
220 V @ 10 A
1
Use of the J8713A changes the switch altitude specification from 4.6 km (15,000 ft)
to 3.1 km (10,000 ft).
PoE power available from the power supplies is
computed by adding the PoE power from all of the
installed supplies. If PoE power redundancy is desired,
take into account the amount of PoE power that needs
to be held in reserve when calculating power needs.
Mixing the J8712A and/or the J8713A power supplies
with the J9306A in the same chassis is
not
supported.
Though installing the J8712A and J8713A power
supplies in the same chassis is a supported
configuration, it is strongly discouraged—particularly
if some level of PoE power redundancy is wanted—
since the amount of PoE power available upon power
supply loss may not be intuitive.
For example, if full PoE power redundancy is wanted
using 875 W and 1500 W power supplies, the
1500 W supply should be held in reserve. This would
mean that only 273 W of PoE power should be used
normally. While it is tempting to add the two supplies
and divide by two (using 585 W and keeping 585 W
in reserve), if power is lost from one supply, the full
900 W of the 1500 W supply may be missing, with
only the 273 W of the 875 W supply available. This
is obviously not enough to keep the 585 W of the
normal environment up and running. Thus, there is no
redundancy for some of the PDs in this scenario, even
though that was desired. Proper power redundancy
can be provided by uniformly employing power
supplies of equivalent power capacity.
See Table 4 for the minimum and maximum power
supply counts for the various zl switches.
Table 4. Switch power supply capacities
Product
number
HP ProCurve
switch
product
Included
supplies
Min.
# of
supplies
needed
Max.
# of
supplies
possible
Max.
# of
supplies
with the
power
shelf
J8697A 5406zl
chassis
None 1 2 4
J8699A 5406zl-48G 1
875 W
1 2 4
J94 47A 5406zl-48G-
PoE+
1 PoE+ 1 2 4
J8698A 5412zl
chassis
None 2 4 6
J8700A 5412zl-96G 2
875 W
2 4 6
J9448A 5412zl-96G-
PoE+
2 PoE+ 2 4 6
J9475A 8206zl base
system
None 1 2 4
J8715A 8212zl base
system
None 2 4 6
J9091A 8212zl
chassis only
(replacement)
None 2 4 6
Watch the amount of power drawn from the building
power mains by the installed switch supplies. It adds
up quickly. Refer to Table 1 for incoming power
requirements. If power redundancy is very important,
split the available power supplies between two
separate building circuits. If one power main goes
down, you will still have the other one to power
the switch.
Note that the J8713A 1500 W supply is 200 to
240 V only.
PoE power levels
There are four PoE power levels defined by the PoE
IEEE 802.3af standard.
Table 5. IEEE 802.3af power classes
IEEE 802.3af class Power
0 (default) 15.4 W
1 4 W
2 7 W
3 15.4 W
4 30 W (PoE+)
Cisco pre-standard 6.3 W
5