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This section describes the grounding requirements for Sonus SBC 1000/2000 systems.

Grounding Requirements

Sonus SBC 1000/2000 Series equipment must be grounded to the building ground network. For ground wire specifics, see the tables below for the United States, Canada and Europe.

Only qualified service personnel should perform the electrical procedures for grounding wire installation.

United States and Canada Grounding Connections

Requirements

 

Minimum Wire Size

14 AWG

Minimum Voltage Rating

300 V

Conductor

Stranded

Europe Grounding Connections

Requirements

 

Minimum Wire Size

1.63 mm

Minimum Voltage Rating

300 V

Conductor

Stranded

Connecting the Sonus SBC 1000/2000 Chassis to Earth Ground

When installing the chassis, connect the earth ground wires from the Sonus SBC 1000/2000 chassis to the facility ground bus.

You must provide connections between the earth ground connection points on the chassis and the facility ground bus. To avoid a potential electrical hazard, be sure to confirm that the system power supplies are physically disconnected from the power feed before installing the wires.

Use the grometed holes on the right and left flanges of the rack, as the attachment points for the safety ground wiring described in the following procedure.

Ground Connections on Left Rear Panel of the Sonus SBC 2000

Ground Connections on Left Rear Panel of the Sonus SBC 1000

To Ground the Sonus SBC 2000 System

  1. Locate the ground connection bolt at the back left corner of the chassis.
  2. For Sonus SBC 2000, attach 14 AWG copper wire and a 1-hole UL approved lug to the grounding bolt. Use Panduit PN14-6R or equivalent.

To Ground the Sonus SBC 1000 System

  1. Locate the ground connection bolt at the back left corner of the chassis.
  2. For Sonus SBC 1000, attach 14 AWG copper wire and a 1-hole UL approved lug to the grounding bolt. Use Panduit PN14-6R or equivalent.