System Grounding Requirements
Proper grounding of the installation site is fundamental to protect the MERLIN II communications system against these types of electrical discharges:
●Lightning strikes near the
●Power surges
●Power crosses on Central
●Static discharge
The following procedures serve as electrical safety requirements and guidelines in grounding. Apply them as you install the MERLIN II system.
WARNING: Make sure these requirements are satisfied before applying power to the system.
SYSTEM GROUND The control unit the CO line protector, and the ac power
CONNECTIONservice panel should be as close to each other as possible. The adequacy of lightning protection is a direct function of the distance between these pieces of equipment.
Recognizing that equipment may be spread throughout a building, the National Electric Code (NEC) requires that the ground point for the CO line protector be bonded to the ac power ground. Proper grounding helps prevent equipment damage due to lightning energy and/or power transients conducted into the equipment via CO and ac power lines.
It is the responsibility of the local telephone company to provide protection of Central Office lines at the entrance to the site. The protection should consist of the following:
●Carbon blocks or gas discharge tubes connected to an approved ground
System Grounding Requirements
