Ground Block; Restricted Access Location; Approved Grounds - Avaya Aura G450 Installation, Quick Start

The customer needs 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 must be provided if multiple Communication Manager Branch G450 Media
Gateway Media Gateways are being installed. The ground block, intended for rack mounting,
has terminals available for terminating Supplementary Ground Conductors. Up to 10 CMBE
G450 Media Gateway 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, you must supply it and have it installed by
an electrician.
!
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 Communication Manager Branch G450 Media Gateway
Media Gateway must be installed in a Restricted Access Location, due to concerns with
regional earthing. 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
Communication Manager Branch G450 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, Norway, and Sweden, the Communication Manager
WARNING:
Branch G450 Media Gateway relies on two ground connections (mains plug with
an earth contact and a Supplementary Ground Conductor).

Approved grounds

An approved ground is the closest acceptable medium for grounding the building entrance
protector, entrance cable shield, or a single-point ground of electronic telephony equipment. If
more than one type of approved ground is available on the premises, the grounds must be
bonded together as required in Section 250-81 of the NEC for the U.S. or per the local electrical
code regulations in the country of installation.
Ground
Issue 1 May 2009 13