The MCS-200 provides two Walther Procon A5 series AC input connections and ships with one set of two power cords for connecting to redundant AC power busses, when available. Only one power cord is necessary for operation. The second cord can be connected to a redundant AC power bus to improve system availability by protecting against power source failures or accidentally tripped circuit breakers.
These redundant connections and cords are optional for the MCS-100.
For more information, see "Connecting to facility A/C power (on page 43)."
System grounding
HP server systems require two methods of grounding: power distribution grounding for safety, and high-frequency signal grounding for equipment performance. Power distribution grounding involves the main building electrical service entrance, electrical conduit, facility power panels, and equipment cabinets (including the MCS-200/100 and server cabinets), which should be grounded using green or yellow insulated wire conductors according to the applicable electrical codes. High-frequency grounding consists of using ground return conductors for intra- and inter-cabinet signal interconnects as well as chassis and cabinet grounding.
For MCS-200/100 and server systems installed on a raised floor, the floor assembly should be electrically grounded to form a complete ground grid. An optimum raised-floor grounding solution is shown in the following figure.
Each floor panel should have at least one supporting pedestal grounded to the power panel and another pedestal grounded to an equipment cabinet. This broadband solution provides excellent grounding for improved safety and performance.
Central ground stud location inside the IT rack
MCS-100
Facility planning for implementation 41
