Approved Grounds - Avaya G450 Manual

Installing the Branch Gateway
Ground conductor
A Supplementary Ground Conductor is provided with the equipment, and is constructed of 10
2
AWG (4.0 mm ) wire, with an insulated ring terminal crimped to one end that is suitable for the #8
(M4) stud/screw on the rear of the Branch Gateway 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, supplied by the customer and installed by an electrician, is available for use when
you are installing multiple Branch Gateway . The ground block, intended for rack mounting, has
ten terminals available for terminating Supplementary Ground Conductors. Up to ten Branch
Gateway devices 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.
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.
Restricted Access Location
In Finland, Norway, and Sweden, the Branch 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 Branch 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, Norway, and Sweden, the Branch Gateway rely on two ground
connections (mains plug with an earth contact, and a Supplementary Ground Conductor).

Approved grounds

There are two methods for equipment grounding.
The first is based on NFPA 70: National Electrical Code (NEC – a United States code).
Note:
Compliance with NFPA 70: NEC – or – with the equivalent local electrical code/grounding
requirements is mandatory.
The second is based on ANSI/EIA/TIA-607 (Commercial Building Grounding (Earthing) and
Bonding Requirements for Telecommunications).
Note:
ANSI/EIA/TIA-607 (TIA-607) defines an intra-building ground-wiring scheme for
communications equipment, and specifies equipment connection/grounding points according
to that scheme. TIA-607 assumes the underlying building grounding infrastructure is in
October 2019 Deploying and Upgrading Avaya G450 Branch Gateway
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