Connecting The Safety Ground; Attaching The Ground Wires - Avaya G450 Install Book

Installing the Avaya G450 Media Gateway

Connecting the safety ground

Proper grounding of the G450 installation safeguards the system, users, and service personnel
by providing protection from lightning, power surges, AC mains faults, power crosses on central
office trunks, and electrostatic discharge (ESD).
Local electrical installation codes must be followed when installing the G450.
!
DANGER:
Connection of both grounds (through the AC Power Cord and the Supplementary
DANGER:
Ground Conductor) is required for safe operation of the G450.
!
WARNING:
An improper ground can cause electrical shock as well as equipment failures and
WARNING:
service outages.

Attaching the ground wires

1. Place the ring terminal of the 10 AWG (4.0 mm
ground screw that was provided in the accessories box.
2. Insert the ground screw on the rear of the chassis adjacent to the ground symbol and
securely tighten the screw such that it cannot be loosened without the use of a tool.
If the ground block has been purchased
1. Cut the Supplementary Ground Conductor (which has one end attached to the grounding
screw on the chassis) to the length needed to terminate it into one of the terminals of the
ground block. Do not coil the Supplementary Ground Conductor.
2. Attach one end of the remaining 10 AWG (4 mm
the ground block and the other end to an approved ground.
3. Cut this ground wire to the length needed to reach the approved ground. Do not coil this
wire.
Note:
The ground block is for use with more than one G450 in the rack. If the ground
Note:
block is to be used, you must supply it and have it installed by an electrician.
If the ground block is not being used
1. Attach the Supplementary Ground Conductor to an approved ground.
2. Connect the AC power cable to the inlet receptacle on the rear of the chassis.
3. If you have a second power supply unit, you can connect it to power by repeating steps 1
and 2.
40 Installation and Upgrades for the Avaya G450 Media Gateway
2
) Supplementary Ground Conductor on the
2
) ground wire to one of the terminals in