HP 354556-002 - Manual (Page 42)

42 HP BladeSystem p-Class Enclosure Installation Guide
Connecting the HP BladeSystem p-Class 1U Management Link
Cable
When deploying the HP BladeSystem 1U Power Enclosure and attached server
enclosure into an existing installation, it is necessary to upgrade all management
module firmware on all enclosures to the latest version.
IMPORTANT: In installations configured with the HP BladeSystem 1U
Power Enclosures and Power Supplies, the power zones are calculated
dynamically using the topology information from all the connected
enclosures. Disregard the power zone switch and LEDs on the
HP BladeSystem 1U Power Enclosure.
If deploying the HP BladeSystem 1U Power Enclosure into a rack installation
with other HP BladeSystem Enclosures, the enclosures can be connected to each
other with management link cables to identify rack topology. Refer to the
"Configuring the dynamic power saver (on page
57 )" section in this document.