General Grounding Requirements - Avaya G700 Installation And Upgrades

2 G700 Media Gateway: Attaching Ground Conductors

General Grounding Requirements

Two safety grounds are required to ensure safe operation of the G700 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 G700, use that cord whenever possible.
The customer must select a location for the G700 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).
!
WARNING:
If the installation location is greater than 50 feet (15 m) from an approved ground, do
not install the Avaya G700 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
suitable for the #8 (M4) stud/screw on the rear of the G700 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 G700 Media Gateways are being installed. The
ground block, intended for rack mounting, has ten terminals available for terminating Supplementary
Ground Conductors. Up to ten G700 Media Gateways can be grounded at the block installed close to
the equipment (on a rack) and then a single ground conductor will be routed from the same block to
an approved ground. If the ground block is to be used, it must be ordered separately and will include a
10 AWG (4.0 mm
approved ground.
!
WARNING:
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.
Because of unreliable earthing concerns in Finland and Norway, the G700 Media Gateway must be
installed in a restricted access location. 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 G700
Media Gateway is gained by the use of a tool (such as a lock and key) or other means of security.
!
WARNING:
For Installations in Finland and Norway, the Avaya G700 Media Gateway relies on two
ground connections (mains plug with an earth contact, and a Supplementary Ground
Conductor).
28
) wire with an insulated ring terminal crimped to one end that is
2
2 ) green/yellow wire to route between the ground block installed on the rack and an
Installation and Upgrades for G700
555-234-100 – Issue 1 – May 2002