EMPACT Series

Communications & Control Equipment

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The Mobile Map Plus^TM (MMP) is a state-of-the-art mobile radio-graphic display system. Alarms received by the MMP encoder are checked and formatted into an error-checking frequency-shift-keying (FSK) signal which is sent to the radio transmitter for wireless signalling to the MMP Radio-Graphic Displays. The radio signal is received no matter the location of the MMP display. The alarm information is checked for accuracy and then displayed on the graphic front panel map of the MMP display plus an audible warning signal. The audible warning can be silenced using the top-mounted acknowledge switch. However, any new alarm appearing at the mobile map unit will cause the audible alarm to resound.

The MMP is continuously supervised ``in use" for both communications to the central control unit and interference by outside signals. The MMP encoder periodically sends a test signal to each MMP display regardless of whether alarms are present. Each MMP display continuously listens for transmissions from the MMP transmitter and for unidentified radio signals on the MMP radio frequency. Separate front panel lamps indicate loss of communications with the central transmitter and/or the presence of an interference signal.

The MMP encoder can format and transmit up to 64 independent alarm signals plus an optional security code to each MMP mobile radio-graphic display. The FSK signalling scheme allows complete transmission  in less than one second. A programmable feature of each MMP display allows combinations of alarm, tamper, access, and secure signals up to a maximum of 64 signals.

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MOBILE MAP PLUS^TM

• Custom CAD/Laser-produced Graphics
• Continuously Supervised ``in Use" for Both Communication and Jamming
• Optional Programmable Security Code
• Independent Radio Transmitter

The MMP mobile radio-graphic display features self-contained construction in a sealed, drawn metal enclosure with integral sunshield. All circuit boards are conformally coated for extra environmental protection. The graphic panel is a custom Computer-Aided-Design-produced polycarbonate sheet. The graphic is photographically reproduced on the reverse side of the faceplate. Long-life ultrabrite LED indicators are imbedded in the reverse side of the graphic. Back lighting is provided for nighttime use. A rear panel audio output jack enables testing without special test equipment.

The MMP mobile display is furnished with an adaptable mounting bracket. Both the display enclosure and bracket are finished with a heat-sealed powder-coat surface.

The MMP radio transmitter is built in a rugged metal enclosure enabling remote mounting near the antenna location. The radio transmitter is matched to an antenna and transmission line to provide the desired radio coverage. A built-in transmission test button enables radio testing without special test equipment. The MMP alarm encoder is provided in a convenient wall-mounted enclosure. Encoder circuitry is contained on plug-in circuit boards. Wiring connections are via screw-type terminal strips. A built-in test switch allows testing the complete MMP system without the need for special test equipment. Frequency selection and licensing assistance is also available from the factory.