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MS-R prot.R3

Radio interface extension is a digital electronic device designed for extension of RS-485 interface line and its transmission via the radio channel.
Power supply 10 to 30 V
Power consumption at the voltage of 12 V, no more than 60 mА
Number of connection outputs:
of RS485 interface with galvanic isolation of
antenna interface

2
1
RS485 interface cable length, no more than 1000 m
Rated power of the transmitter, no more than 10 mW
Frequency range 433,05 – 434,79 MHz
Rate of exchange in the air, bit/sec 4800, 9600, 19200, 38400
Overall dimensions of the module, no more than 125×84×37 mm
Weight, no more than 200 g
Operating temperature range from 0 to +40°С
Average service life, at least 10 years

Line extension is carried out using a pair of configured radio extenders.

System configuration using radio extension allows for RS-485 interface branching during which computer-side radio extender is able to exchange data via the radio channel with several radio extenders which play the role of both extension and branching of the interface. However, it should be mentioned that the address field of the computer has a restriction - total number of units and devices connected to it via the RS-485 interface shall not exceed 60.

On the front face there are LEDs intended for display of the current state of the radio extender.

LED indicator "Power":

  • is lit continuously when power is connected.

LED indicator RS-485:

  • when there is no exchange with fire alarm control and indicating equipment, the LEDs are off;
  • when there is exchange with fire alarm control and indicating equipment, it blinks at a rate of exchange.

LED indicator "TRANSMISSION":

  • when there is no exchange via the radio channel, the LED is off;
  • in case of exchange via radio channel - glows steadily.

LED indicator "RECEPTION":

  • when there is no exchange via the radio channel, the LED is off;
  • in case of data receipt via radio channel - glows steadily.

External connection diagram of radio extender MS-R prot.R3.

МС-Р схема.jpg


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