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Call reception
The call code sent via the bus is received by all system terminals, but is only recognised by the terminal (or
terminals) in the apartment programmed with the same code. A call tone is generated in the apartment and the video
function is activated (on video terminals).
Communication and door opening
When the apartment terminal receives a call (its address coincides with the call code generated by the amplifier), a
direct connection is established between the terminal called and the panel/reception making the call, via a single
communication path without branching.
Upon picking up the terminal, audio/video communication is established between the terminal and panel/reception.
This communication is limited to a maximum time period of 90 seconds (if this is exceeded, communication will be
cut) and a minimum time of 15 seconds (during which no call requests from other panels or autostart from other
terminals can be made).
Communication can also be established with the outdoor entry panel without any call being made, through the
autostart function available on all video terminals (please consult the section ‘apartment terminals’).
During communication, the door can be opened by pressing the corresponding button on the apartment terminal.
End of communication: Terminating call
Once the maximum communication time is reached, or upon hanging up the apartment terminal, the system returns
to its standby status: panel/reception on standby and terminals listening to bus.
Activation commands: BUS2 relay
The BUS2 system features the cutting-edge ability to control relays installed along the bus without any additional
cabling, from any apartment terminal using the buttons F1 and F2 (available on all monitors and the telephone
models ‘Extra’).
This makes it much easier to control additional devices: courtesy lighting, secondary doors, garages, etc.
The BUS2 relays have two modes of operation:
- Individual: the BUS2 relay is programmed with an address (in the same way as the apartment terminals), which
in this case must coincide with the terminal address from which the relay will be activated by pressing the F1
or F2 button (upon pressing F1 or F2, the terminal will send the activation command via the bus to the relay
programmed with the same address).
- General: the relay is activated when button F1 or F2 is pressed on any system terminal. No address is
programmed in the relay for this operational mode.