Connect The Safety Ground; For Customer-Installed Equipment - Avaya G250 Installation And Upgrade Manual

Installing the Avaya G250 Media Gateway
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
cabinet single-point ground terminal. Approved floor grounds may include the following:
- Building steel.
- The grounding conductor for the secondary side of the power transformer feeding the
floor.
- Metallic water pipes.
- Power-feed metallic conduit supplying panel boards on 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
WARNING:
dedicated power equipment room, then connections to this ground must be made
by a licensed electrician.

Connect the safety ground

Proper grounding of the G250 Media Gateway 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 G250.
!
WARNING:
An improper ground can cause electrical shock as well as equipment failures and
WARNING:
service outages.

For customer-installed equipment

To attach the ground wires:
1. Remove the ground screw on the rear of the chassis adjacent to the ground symbol.
2. Place the ring terminal of the 14 AWG (1.5 mm
screw.
3. Replace the ground screw on the chassis and securely tighten the screw such that it cannot
be loosened without the use of a tool.
4. Attach the Supplementary Ground Conductor to an approved ground.
5. Connect the AC power cable to the inlet receptacle on the rear of the chassis.
You have now mounted the fully equipped G250 Media Gateway and connected to electrical
ground conductors. You are now ready to connect power.
40 Installation and Upgrade for the Avaya G250 Media Gateway
2 ) Supplementary Ground Conductor on the