Appendices - hager SC901AX Manual

9. Appendices

9.1 General information about creating the radio link
An OPTWIN installation is a home-control system in which all the doorphone products
communicate with each other via a hardwired bus or radio.
It comprises different types of products that can be classed according to their function at a given
time T in the installation:
• "Transmitter" products: these send commands or information following actions (e.g. when the
handset Light button is pressed) or events (e.g. when the gate is closed via the controller).
A "Transmitter" product can generate several different commands (e.g. Light or Garage buttons
on the handset).
• "Receiver" products: these receive commands and information and activate the appropriate
applications (lighting, automatic control system, etc.) or respond according to their
programming. These applications or responses are also called functions.
A "Receiver" product can have several functions (e.g. 2-channel relay output receiver, strobe
and siren sounding, etc.).
It should be noted that products may act as "Transmitters" and "Receivers".
Examples:
Audio communication between the handset and the outdoor caller unit. The handset is
considered as the receiver while the controller/outdoor caller unit act as the transmitter.
The Light button on the handset controls the lighting connected to the relay output receiver.
The handset is considered as the transmitter while the output receiver acts as the receiver.
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