AT&T Door Phone Controller operation manual Appendix C-Specifications, Electrical

Standards

Electrostatic Discharge

Power Supply

Page and Talk-Back Amplifier

The Door Answer Controller meets:

■U.L. listing requirements

■F.C.C. part 15, class B requirements

■F.C.C. part 68 requirements

Your AT&T Door Phone Controller complies with the ESD requirements in BELL Pub 48002.

All user accessible connectors and controls have electrostatic discharge protection.

The AT&T Door Phone Controller is powered by an UL listed wall mount transformer with a strain relieved cord.

It functions over an input power range of 96 VAC to 129 VAC.

Your AT&T Door Phone Controller has a green LED power indicator.

■A flashing state of 2.5 per second indicates normal power to the unit and normal microprocessor operation.

■A constant ON state indicates a brown-out condition or microprocessor failure.

■A constant OFF state indicates there is no power to the unit.

Paging output power is 2 watts (continuous) @ 3.35 Vrms (sine wave). Talk-back input sensitivity: with 600 microVrms at the speaker leads, tip and ring output level will be -17 dBm.