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WARNING:
System grounding must comply with the general rules for grounding provided in
WARNING:
Article 250 of the National Electrical Code (NEC), National Fire Protection Agency
(NFPA) 70, or the applicable electrical code in the country of installation.
General grounding requirements
Two safety grounds are required to ensure safe operation of the Communication Manager
Branch i120: the ground conductor that is part of the AC power cord and the field-installed
green/yellow conductor referred to as the Supplementary Ground Conductor. Both safety
grounds must be connected to an approved ground. If a power cord accompanies the
Communication Manager Branch i120, use that cord whenever possible.
Installation Location
The customer must select a location for the Communication Manager Branch i120 installation
that is no more than 25 feet (7.6 m) from an approved ground or close enough for use with the
supplied secondary grounding conductor. If this location requirement is not met, the customer
must contact a licensed electrician to install a Supplementary Ground Conductor per Article 250
of the National Electrical Code (NEC).
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WARNING:
If the installation location is greater than the length of the supplied secondary
WARNING:
grounding conductor from an approved ground, do not install the CMB i120 until a
licensed electrician is present to install a Supplementary Ground Conductor.
Ground conductor
A 25-foot (7.6 m) Supplementary Ground Conductor is provided with the equipment, and is
constructed of 10 AWG (4.0 mm
is suitable for the #8 (M4) stud/screw on the rear of the Communication Manager Branch i120.
The customer will need to provide a means of connecting this Supplementary Ground
Conductor to an approved ground according to Article 250 of the National Electrical Code
(NEC).
10 Communication Manager Branch i120 Installation Quick Start
2
) wire, with an insulated ring terminal crimped to one end that
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