Ground Conductor; Ground Block; Restricted Access Location - Avaya G450 Installing And Upgrading

of the National Electrical Code (NEC).
!
WARNING:
If the installation location is greater than 50 ft (15 m) from an approved ground, do
WARNING:
not install the Avaya G450 Media Gateway until a licensed electrician is present
to install a Supplementary Ground Conductor.

Ground conductor

A Supplementary Ground Conductor is provided with the equipment, and is constructed of 10
2
AWG (4.0 mm
#8 (M4) stud/screw on the rear of the G450 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).

Ground block

A ground block is available for use when multiple G450 Media Gateways are being installed.
The ground block, intended for rack mounting, has ten terminals available for terminating
Supplementary Ground Conductors. Up to ten G450 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
DANGER:
the CE Mark) on the product, as well as allow a hazard to be present that could
result in death or severe personal injury.

Restricted Access Location

In Finland, Norway, and Sweden, the G450 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 G450 is gained by the use of a tool (such as a lock and
key) or other means of security.
) wire, with an insulated ring terminal crimped to one end that is suitable for the
Step 4: Attaching ground conductors
Issue 2 June 2008 41