MERLIN LEGEND Communications System Release 7.0 | Issue 1 |
Pocket Reference | April 1999 |
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Power and Grounding | 35 |
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■Do not place anything on top of carriers.
■Do not install the control unit under any device that may drip fluid, such as an air conditioner.
■Do not expose the control unit to moisture, corrosive gases, dust, chemicals, spray paint, or similar materials.
Power and Grounding
Proper power and grounding are essential for correct and safe functioning of the system.
Power Specifications
The system control unit plugs into a
Each carrier unit requires its own power supply. Each power supply requires a maximum current of 5.4 amps. Therefore, if expansion carrier units are added to the system, extra AC outlets may be needed.
Grounding Requirements
Proper grounding of the installation site protects the system against the following:
—Lightning
—Power surges
—Power crosses on outside lines/trunks
—Electrostatic discharge (ESD)
The local telephone company is responsible for providing protection of outside lines/trunks at the entrance to the site. The protection should consist of the following:
—Carbon blocks or gas discharge tubes connected to an approved ground
—Adequate bonding of the outside line/trunk protector ground and the power company ground
!WARNING:
An improper ground can result in equipment failures and service outages. Verify that the AC power uses an approved ground for its primary ground, that all
The following is a list of approved grounds, starting with the most preferred:
—Building steel.
—Acceptable water pipe, must be a metal, underground water pipe at least
—It must be electrically continuous so that the protector ground is connected. (Check for insulated joints, plastic pipe, and plastic water meters that might interrupt electrical continuity.)
