Hardware reference guide
Pwr. & Grnding. Guide
35013379 11/2011 731
Power and Grounding Considerations for AC and DC Powered Systems
Overview
The required power and grounding configurations for AC powered and DC powered
systems are shown in the following illustrations.
Each backplane shown has its own ground connection; that is, a separate wire
returning to the main grounding point, rather than "daisy chaining" the grounds
between power supplies or mounting plates.
The main grounding point is the local common connection of the panel ground,
equipment ground, and earth grounding electrode.
Also shown are power and grounding configurations of AC and DC systems required
for CE compliance. The CE mark indicates compliance with the European Directive
on Electromagnetic Compatibility (EMC) (89/336/EEC) and the Low Voltage
Directive (73/23/EEC). In order to maintain compliance, the Quantum system must
be installed per the installation instructions.










