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LONTA-202 (REEF STRING-202) Radio channel notification transmission system

Organization of centralized security of geographically distributed stationary objects with transmission of fire and security notifications via radio channel. Establishing a system of radio channel object monitoring equipped with security and fire panels from other manufacturers.

The main advantage of this system is the capability to transmit alarm signals via radio channel on an open frequency of 433.92 MHz at distances up to 50 km without retranslation. Transmitting power in this case is less than 10 mW. Transmitters and receivers of the system can operate in different frequency letters, that allows using up to 28 Lonta-202 system simultaneously in one area. Each letter has 1024 operating frequencies (channels). Bandwidth of each channel is about 100 Hz, which is about 100 times less than typical modern transmittor emission band. As a result, total power of noise and interference attributable to the bandwidth of communication channel in Lonta-202 system is also 100 times less than in conventional system, which provides high signal/noise ratio, and therefore, allows achieving long-range signal transmission.


  • System operates at open frequency of 433.92 MHz ±0.2%, power of object transmitters is 10 mW
  • Permit to use radio frequency is not required for operation of the system
  • Communication range is 20-30 km in urban areas and 20-50 km outside the city
  • Communication control with each object – 4-90 minutes (user configurable)
  • Transmitter for two, five and eight loop circuits and expanders, address panel and communicators for third-party panels working with Contact ID protocol or RS-232, TTL or RS-485 interfaces
  • Simultaneous use of 16800 transmitters at 28 frequency letters is possible in the same territory



Equipment for security center:

  • RS-202BS-FS – base station performs one of the main functions in the system – it receives radio signals, carries out its initial decoding and sens to PCN RS-202PN.
  • RS-202BSm – new base station with capability of simultaneous reception of up to 4 frequency letters.
  • RS-202PN – centralized monitoring panel (PCN) processes the information received by the receiver and displays it on LCD. Can be used standalone or in conjunction with security monitoring software on a computer.

Antenna equipment:

  • base antenna SirioSPO 420-8,
  • antenna amplifier RS-202AUm.


Optional expanders:

  • RS-202SX8 – zone expander for 8 loop circuits is designed to work with object device RS-202TP8. Up to eight expanders can be connected to transmitter RS-202TP8, thus increasing the number of loop circuits of fire and security alarm at the facility from 8 to 72.
  • RS-202X2 (RS-202X8) – partition expanders for 2 (8) loop circuits are designed to work with object device RS-202TX8. Up to eight expanders can be connected to the device, thus increasing the number of loop circuits of fire and security alarm at the facility to 9. A feature of this expander is the capability of independent arming (except RS-202X2).



Facility equipment:

  • RS-202TF – facility device has two permanently protected alarm loop circuits.
  • RS-202TP – security and fire device used to create the alarm system for country houses, cottages, garages, commercial pavilions and other facilities to prevent intrusion and fire. It has five fixed loop circuits with arming security loop by means of Touch Memory keys (keyboard Reef-KTM) with delay option when arming/disarming.
  • RS-202TP8 – the device has eight reprogrammable loop circuits of fire alarm. The number of loop circuits can be expanded to 72 using up to eight zone expanders RS-202SX8.
  • RS-202TX8 – the device is similar to RS-202TP8 by functional capabilities, i.e. it has eight reprogrammable loop circuits of fire and security alarm systems. The main difference is an option of increasing not only the number of loop circuits to 72, but the number of security partitions of up to eight when using eight expanders RS-202X2 or RS-202X8 respectively. Each expander has an option of independent arming/disarming (except RS-202X2).
  • RS-202TX8N – new security and fire device, having eight reprogrammable loop circuits of fire and security alarm systems for connection of addressless annunciators. The device can be used for making alarm systems for preschools and schools, clinics, shops, clubs, sports facilities, offices and other facilities to protect against intrusion and fire. Loop circuit arming/disarming is carried out by means of built-in keyboard, Touch Memory keys or remote keyboard Reef-KTM. You can connect partition expanders RS-202X2 and RS-202X8.
  • RS-202TX8NL – new security and fire device, similar to RS-202TX8N by a set of functions. It has additional address line for fire annunciators of Leonardo System Sensor series and built-in LCD display.


  • RS-202TС – transmitter-communicator is designed for integration of control panels of third party manufacturers into Lonta-202 system, having access to a telephone line via Contact ID standard. The transmitter decodes a signal received over a telephone line, generates radio signal of the event and sends it over the air to security center.
  • RS-202TD – transmitter-communicator is designed to integrate third-party control panels via RS-485/232 or TTL interface.




28 frequency letters x 600 transmitters per letter = 16800 objects

Facility equipment:

Main areas of activity of Altonika include development and manufacture of automotive and industrial electronics, radio channel security systems, medical equipment and radio communications.

Our contacts

  • Address: Moscow, Sivashskaya street, 2А
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  • Tel: +7 (495) 797 3070
  • Fax: +7 (495) 795 3051