Specifications

7-20 Cisco MGX 8220 Reference, Release 4.1
Connecting Power for AC Systems
Repeat steps 1 and 2 for any other shelves in the rack being powered from the same power
assembly.
Step3 AC power source is connected to the IEC receptacle(s) on the rear of the power module.
The power assembly is available in two versions: one with a single AC power input and
one with dual (redundant) AC power inputs. The AC power cord(s) should be plugged
into a 200/240VAC nominal, single phase, dedicated wall outlet capable of supplying
15 amps. The facility circuit should be protected with a 20 amp circuit breaker with long
trip delay.
Step4 Ground (green) wire of the AC power cord is connected to the MGX 8220 system for
safety ground. Make sure that the building AC receptacle is properly grounded.
Step5 If the left hand power connector on an MGX 8220 shelf is not used, a cover must be
installed in the empty position to assure proper cooling of the rear cards.
WarningThe power to the shelf is OFF at this point. DO NOT apply power until later.
Figure7-14 AC Cabling for One and Two Shelf Racks