Kód tovaru: F1102
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Battery-operated Double Transmitter: F&Home Radio rH-S2
View of the device

Battery-operated Double Transmitter: F&Home Radio rH-S2
Top view

The rH-S2 module is designed to connect two monostable switches with potential free contacts. The module sends wirelessly information on each contact state (open/closed) to the server. Typical applications: control of lighting or lighting scene, control of shutters/blinds.
Symbol in design and configuration software:
The symbol of rH-S2
The rH-S2 module is represented by object that consists of two channels reading information about the state (on/off) of the connected contacts. Shorting or opening a contact changes the logic state at the corresponding output (0/1).

  • Insert an appropriate battery in accordance with the polarity shown and close the cover.
  • Connect the rH-S2 wires with contacts of a double monostable switch (see the diagram above).
  • Mount the switch and module in an installation box located in a suitable place.
  • Adjust the antenna wire parallel to one of the server antennas, as far as possible from the other wires.
  • Register the device in the system.
An example application:
The transmitter wirelessly provides logic states used e.g. to control power relays in the system.
In the diagram above, the double F1102 transmitter determines the state of the two outputs of the 5-channel F2250 relay. The closing of the first contact switches on the the lamp no. 1, of the second - the lamp no. 2. The lamp no. 3 can be controlled by another device (not shown). The opening of the first or second contact switches off the corresponding lamp, so in this simple example the user should press the required button as long as needed. In order to switch on and off a lamp alternately, a logical flip-flop trigger (D-type) should be implemented between the modules (the transmitter and relay).
A more advanced scheme for lighting control can be found in the Lighting control project article.

About the system:
Name F&Home Radio rH-S2
Code F1102
Battery CR123 (lithium) or SL861/S
Battery lifetime
12 - 36 months
RF communication band [MHz] 868
Communication mode one-way with ack
Data encryption YES
Open space range 100 m
Inputs 2x (for monostable contacts)
Open circuit voltage [V]
Closed-contact current [µA] 250
Battery monitoring
Operating temperature range +10ºC, +40ºC for CR123A battery
-30ºC, +40ºC for SL861/S battery
Operating humidity / environment <= 85% (no condensation of
water vapor) / no aggressive gasses
Dimensions [mm] 51x37x20
Ingress protection rating IP 20
F&HOME RADIO integrates electrical installations in such a way that the processes of heating, air conditioning, ventilation, lighting, alarm and access control form one efficient system - all for the safety and comfort of the residents. With wireless two-way communication between the central unit (server) and both sensors and actuators, software solutions, as well as remote control of the system that can performed by the users in many ways, the system allows them to manage home energy resources in a manner appropriate to their needs.
In practice, this means the ability to integrate electrical appliances in such a way that a hand gesture can create a romantic light scene in the living room and bedroom, pull down the shutters or blinds and adjust the interior temperature, for example. The option of remote control via the Internet ensures that even after our return from a long journey we are welcomed by the house as if we have never left.

Technické dáta

Name rH-S2 module
Product type
System F&Home Radio
Transmission type
Frequency MHz 868
Aplikácie indoor
Number of transmitters 2
Transmitter parameters contact current µA 250
voltage V 3
Power supply battery CR123 (lithium) or SL861/S
Range m 100
Protection rating IP20
Pracovná teplota °C +10°C, +40°C for CR123A batteries, -30ºC, +40ºC for SL861/S batteries
Humidity 0...85
Dimensions mm 51 × 37 × 20