AT&T 518-600-016 manual Specification for an ac line voltage low of 99 VAC

SPACE AND

LOCATION REQUIRIEMENTS

WARNING: The control unit cannot be installed outdoors. It must be installed in an environment suitable for electronic equipment. Do not expose the control unit to devices that generate electrical interference such as arc welders or motors.

The control unit should be located with the following points in mind:

●CO line protection. The control unit should be installed near the Central Office line protectors

provided by the local telephone company. Refer to “System Grounding Requirements” on page 2-5 for additional information about line protection.

●Ventilation. Allow at least 1 inch of space on the right and left sides of the control unit and 12 inches of space above and below the control unit to prevent overheating. Do not place the control unit near extreme heat or in direct sunlight.

●Placement. AIlow at least 1 foot of space to the right of the basic carrier for expansion and at least two feet of space to the left for a jack field. Refer to “Wiring the System” on page 2-12 and “Jack Field Wiring” on page 2-33 for additional information on space requirements.

POWER	Listed below are the power requirements and
REQUIREMENTS	specifications for the control unit:
SPECIFICATIONS	● Voltage range. 99 to 129 VAC
	Voltages generated by the power supply remain within
	specification for an ac line voltage low of 99 VAC.
	The system will bridge a 40 millisecond supply outage
	without dc voltages being affected.

2-2 Preinstallation Requirements