ASL BS217 Dual Channel Master Station

The BS 217 (19”/1RU) is designed to be a dual channel master station in an ASL intercom system. For the connection to remote stations, use professional microphone cable.

The built-in dual channel power supply can safely drive up to 15 Basic Series beltpacks operating at full power. The power supply is fully protected against wiring mistakes (reverse power), short circuit or excessive thermal condition. Should one of these conditions occur, the unit shuts down. Once the fault condition has been removed, the unit resets automatically and full power is restored.

Each channel has a Volume (listen level) control, a TALK and a CALL button + LEDs. With a headset connected to the XLR-4 headset connector one can talk and listen to each channel separately or to both channels simultaneously. There are side tone trimmers to adjust the listen level of one’s voice in one’s headset.

The unique ASL Call system provides both a flashing red LED and a very distinctive sound signal. A slight touch of the CALL button makes the call LED flash, whilst holding the button for 2 seconds the call sound signal is activated.

An Aux input connector with Ground Lift switch at the rear panel allows injecting an external line level audio signal into the intercom lines. Special attention has been paid to the intelligibility of speech. By applying low noise/high speed circuitry, a speech presence filter and a specially designed headphone amplifier, communication is very comfortable even in environments with high background noise levels.