The circuit takes data directly from the bus RS installed between the command station (or RS2PC) and RS modules.
You can program each individual LED to show a occupancy input illuminated fixed or flashing.
Several LEDs can display the same occupancy input and you can have multiple TCO joined with just 3 wires.
The programming of the number of the module is made in a simple way pressing the button and then changing the state of the feedback input to be monitored. By means of the button it’s also possible to show in the LED their programmed number of feedback input. It includes visualization of lack of bus RS.