IMC Networks IE-MediaChassis/1-DC Operation Manual page 7

This equipment is designed to permit the connection of the grounded conductor of
the DC supply circuit to the grounded conductor at the equipment. If this
connection is made, all of the following conditions must be met:
1. This equipment shall be connected directly to the DC supply system
grounded electrode conductor or to a bonding jumper from a grounded
terminal bar or bus to which the DC supply system grounding electrode
conductor is connected.
2. This equipment shall be located in the same immediate area (such as,
adjacent cabinets) as any other equipment that has a connection between
the grounded conductor of the same DC supply circuit and the grounding
conductor, and also the point of grounding of the DC system. The DC
system shall not be grounded elsewhere.
3. The DC supply source shall be located within the same premises as this
equipment.
4. Switching or disconnecting devices shall not be in the grounded circuit
conductor between the DC source and the point of connection of the
grounding electrode conductor.
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