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The internal supplies have over-current, over-temperature, and over-voltage protection, as well as integrated 
fans. Hot swapping is allowed, taking into account that disconnecting the power supplies may interrupt PoE 
operation.
An external power shelf, the HP ProCurve Switch zl Power Supply Shelf, is available to house up to two 
Switch zl power supplies. The power supplies in the Power Supply Shelf can be connected to one or two 
8200zl/5400zl switches to provide additional PoE/PoE+ power, either to power additional PoE-powered 
devices, or to provide more power for PoE power redundancy. The supplies in the power shelf are connected 
to the switch(es) via one or two 2m EPS cables. The PoE power provided is added to the internal power supply 
PoE power to figure the total amount of PoE power to the ports in the switch.
While the connectors on the EPS connector cable will fit the connectors on the HP ProCurve 3500 series 
switches, no power will flow from the power shelf. Extra PoE power for the 3500 series switch can be obtained 
with the HP ProCurve 620 Redundant/External Power Supply.
zl modules
Interface modules
The HP ProCurve Switch 8200zl/5400zl series support a variety of popular interface modules, providing 
customers with the ability to change or scale their LAN links and adapt as the needs of the business 
environment change over time.
A variety of interface modules are available for HP ProCurve Switch 8200zl/5400zl series:
•J8702AHPProCurveSwitchzl24-Port10/100/1000PoEModule
•J8705AHPProCurveSwitchzl20-Port10/100/1000+4-PortMini-GBICModule
•J8706AHPProCurveSwitchzl24-PortMini-GBICModule
•J8707AHPProCurveSwitchzl4-Port10-GbEX2Module
•J8708AHPProCurveSwitchzl4-Port10-GbECX4Module
•J9307AHPProCurve24-Port10/100/1000PoE+zlModule
•J9308AHPProCurve20-Port10/100/1000PoE+and4-PortMini-GBICzlModule
•J9309AHPProCurve4-Port10-GbESFP+zlModule
•J9478AHPProCurve24-Port10/100PoE+zlModule