The Model DXS-54 Supervised Passive Infrared Motion Detector Transmitter is a battery powered passive infrared motion detector with a built-in transmitter designed for use with Linear’s DXS and DX format receivers. This transmitter can be used in a variety of motion detection applications. When the passive infrared sensor detects motion in its field of view, the transmitter sends a digitally coded wireless signal to its companion receiver. The digital DXS code format features over a million possible codes. The DXS transmitters are precoded at the factory to unique codes, so no field coding is required. The DXS-54 can send three different signals: alarm, low battery and status. In a typical installation, the motion detector is mounted indoors in a corner or on a wall between six and eight feet high. The sensor will monitor the infrared level in its detection pattern. If the level increases or decreases rapidly (as when a person or animal moves through the area) the transmitter triggers, sending an alarm signal to the receiver. The unit is powered from a 9-Volt alkaline battery. The battery’s life can be up to three years depending on the area’s traffic. When the battery gets low, the test indicator will flash and a low battery signal will be sent to the receiver when the detector senses motion. Approximately every hour, the DXS-54 will send a status transmission to the receiver. The hourly signal updates the receiver to the transmitter’s condition. By monitoring status transmissions, the receiver can determine if a transmitter has a low battery or has been removed from the system. DXS format receivers can monitor status signals, DX format receivers cannot. To conserve battery life, during normal operation, the detector can trigger the transmitter a maximum of once every four minutes. For setup and testing, pressing the detector’s test button places the unit in walk test mode for four minutes. The installer can walk in front of the unit while viewing the red test indicator through the detector’s lens to determine the detection area. In walk test, an alarm signal is sent each time the walk test indicator lights. During normal operation, the detector requires a pulse count of three events in eight seconds before sending an alarm transmission.
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