Contacta HLD2 Loop driver

General Description

The Contacta HLD2 Loop driver can be installed above or below the counter and features microphone input, automatic gain control, compression and noise gate. The low profile and lightweight design means installation is simple and discrete.

Features

Microprocessor control
Energy-saving ‘green’ standby mode achieves 80% power saving
Advanced audio processing features AGC, compression, and noise gate
Constant-current loop drive
Continuous self-testing
Isolate audio line input allows the driver to take alternative audio sources (optional)
Power and LED status indicators

Delivery Includes

1 HLD2 Loop driver

Technical Data

Dimensions (H x W x D): 116 x 116.2 x 40mm
Weight: 300g
Construction: ABS Plastic Construction Housing
Finish: Matt Black, Fine Texture
Inputs: Input 1 (Microphone): Screw terminals on 3.8mm 2 pole Phoenix connector. Single-ended electret microphone, powered by 5V via 2.2K ohms
Input 2 (Line) (Optional): Screw terminals on 3.8mm 2 pole Phoenix connector. Transformer isolated, 0dBu into 1K ohms, may have series resistance added for optional 75V or 100V line inputs
Power: Centre positive power jack, 14V DC 2A via 2.1mm from our P55 power supply unit
Loop output: Loop connection: Screw terminals on 3.8mm 2 pole Phoenix connector
Loop drive current: 2A RMS compliance current @ 1Khz sine wave
Loop drive voltage: 4V RMS compliance voltage @ 1KHz sine wave
Audio: Frequency response: 100 Hz – 5kHz (±3dB)
Distortion: Better than -40dB, inputs at nominal level
Automatic gain control: Processor controlled: Dynamic range: 40dB typical. Attack time: 10 milliseconds. Release time: typically 10 seconds, varies with program content
Indications: Status LEDs: 3 colour LEDs indicate power, input and output diagnostic information. Connection provided for our LED halo indicator microphone
Self-Test: Microprocessor controlled: Unit, including microphone and loop connections is continuously monitored and internal and external LED indicators are updated
Energy saving: Sound activated: Unit will enter low energy “sleep” mode when acoustic conditions indicate lack of usage
Dimensions (H x W x D): 116 x 116.2 x 40mm
Weight: 300g
Construction: ABS Plastic Construction Housing
Finish: Matt Black, Fine Texture