Dell Force10 E300 - E1200 I AC Power Modules

Installing the Hardware 17
E1200i AC Power Modules
When installing the AC power supplies in the E1200i system, make note of the
following:
• E1200i ExaScale AC system: The E1200i AC system requires a minimum of
3 AC power supplies in a shelf (0, 1, 2 or 3, 4, 5) to operate. For full
redundancy use 6 power supplies so that if one power supply fails in one
shelf, the system remains operational operates with the 3 power supplies in
the other shelf. To comply with safety agency and EMI regulations, you must
install the AC-cord retainer over all power cords. The E1200i AC chassis
contains 6 AC power supply slots.
• E1200iTeraScale AC system: The E1200i AC system requires a minimum of
two AC power supplies to operate, three for power redundancy, four for
facility redundancy (2+2), and 6 for 3+3 redundancy. To comply with safety
agency and EMI regulations, you must install the AC-cord retainer over all
power cords. The E1200i AC chassis contains six AC power supply slots.
NOTE: If you are installing only two power supplies, they must be installed in the
same row. FTOS will generate an error message if the two power supplies are not in
the same row.
NOTE: The On/Standby switch disconnects power to the rest of the chassis from
all 6 AC power supplies. When the AC cord is attached, power supply fans will
spin and the LEDs will indicate status while the On/Standby switch is in Standby.
CAUTION: An E1200i AC power supply still has power after extraction, and
has completely powered off when the fans have stopped rotating. When
replacing a power supply, to avoid arcing and discoloration of the supply and
the chassis pins, please wait for the fans to stop rotating before reinserting the
supply.
3 Loosen the retaining screw and remove PEM safety cover.
4 Slide the backplane connector end of the PEM into Power Supply Slot 1
or 3. Secure the PEM to the chassis by tighten the two locking screws.
Step Task
1 Make sure that the On/Standby switch, located on the left side of plug
AC-0, is in the Standby (up) position.
Step Task