• Be connected to rod and pipe electrodes. A rod or pipe electrode consists of one 1.6 cm (5/8
inch) solid rod or 2 cm (3/5 inch) conduit driven to a minimum depth of 2.4 meters (8 feet).
• Be connected to plate electrodes. Plate electrodes have a minimum of 0.185 square meter (2
square feet) of metallic surface exposed to the exterior soil.
Approved floor grounds:
Floor grounds are those grounds on each floor of a high-rise building that are suitable for
connection to the ground terminal in the riser closet and to the equipment single-point ground
terminal. Approved floor grounds may include the following:
• Metal Frame of the Building (in accordance with the criteria specified in Metal Frame of the
Building on page 37)
• The grounding conductor for the secondary side of the power transformer feeding the floor
• A grounding point specifically provided in the building for that purpose
Warning:
If the approved ground or approved floor ground can only be accessed inside a dedicated
power equipment room, then connections to the ground must be made by a licensed
electrician.
ANSI/EIA/TIA-607:
In buildings where a ground-cabling infrastructure meeting TIA-607 has been implemented the
Avaya equipment shall be grounded according to the TIA-607 standard. In a TIA-607 installation,
the Telecommunications Main Grounding Busbar (TMGB)/Telecommunications Grounding Busbar
(TGB) links the telecommunications equipment to the ground.
Other grounding terminology is:
• Building principle ground, normally in a building with one floor.
• Floor ground bar, normally in buildings with more than one floor.
Refer to
Figure 7: ANSI/TIA/EIA-607 Grounding Schematic on page 39.
Configure telecommunications subsystems, such as groups of frames or equipment, as separate
single-point ground entities connected to the equipment’s dedicated service panel via a single-
point ground bar. The service panel ground connects to the building principle ground via the main
service panel or, in a TIA-607 installation, via the TGB. Refer to
Figure 8: Typical Wiring Plan on
page 39.
Installing the Branch Gateway and EM200
July 2018 Deploying and Upgrading Avaya G430 Branch Gateway 38
Comments on this document? infodev@avaya.com
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