General Grounding Requirements - Avaya G350 Installation Manual

Installing the Avaya G350 Media Gateway
Step 3: Attach ground conductors

General grounding requirements

Two safety grounds are required to ensure safe operation of the G350 Media Gateway: 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 G350, use that cord whenever possible.
The customer must select a location for the G350 Media Gateway installation that is no more than 50 feet
(15 m) from an approved ground. 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).
!
If the installation location is greater than 50 feet (15 m) from an approved ground, do not install the
Avaya G350 Media Gateway until a licensed electrician is present to install a Supplementary
Ground Conductor.
A 55-foot (16-m) Supplementary Ground Conductor is provided with the equipment, and is constructed
of 10 AWG (4.0 mm
(M4) stud/screw on the rear of the G350 chassis.
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).
A ground block is available for use when multiple G350 Media Gateways are being installed. The ground
block, intended for rack mounting, has ten terminals available for terminating Supplementary Ground
Conductors. Up to ten G350 Media Gateways can be grounded at the block installed close to the
equipment (on a rack) and then a single ground conductor can be routed from the same block to an
approved ground. If the ground block is to be used, it must be ordered separately.
!
DANGER:
Failure to install both grounds will void the Product Safety certifications (UL and the
CE Mark) on the product, as well as allow a hazard to be present that could result in
death or severe personal injury.
In Finland and Norway, the G350 Media Gateway must be installed in a restricted access location, due to
unreliable earthing concerns. A restricted access location is defined as access that can be gained by only
Service Personnel or Customers who have been instructed about the reasons for the restricted access and
any safety precautions that must be taken. In these cases, access to the G350 is gained by the use of a tool
(such as a lock and key) or other means of security.
!
For installations in Finland and Norway, the Avaya G350 Media Gateway relies on two ground
connections (mains plug with an earth contact, and a Supplementary Ground Conductor).
28
WARNING:
2 ) wire, with an insulated ring terminal crimped to one end that is suitable for the #8
WARNING:
Installation of the G350 Media Gateway
December 2003