The transmitter inputs are of the NC type, which means that the state in which the input is shorted to ground is considered normal. Opening the input causes an event to occur and the appropriate code is sent to the receiver, which in response sends confirmation of receipt of the event to the transmitter. If confirmation is received, the transmitter proceeds to transmit the next event (if there is one in the buffer), and if there is no confirmation, the event is repeated at random intervals. Shortening the input to ground does not cause an event, but only reopening the input will trigger a new transmission. Sending an event and waiting for a response is signaled by the red LED lighting, and receiving confirmation by the green LED. The lithium battery used is sufficient to send a minimum of 40,000 events, and the operating time in standby mode is over 5 years. Low battery status is indicated by red diode flashes repeated every 5 seconds and the time required to replace it is min. 2 weeks. Transmitter inputs can be connected, for example, to OC outputs in alarm control panels, to NC contacts of relays, or, for example, to panic buttons with NC contacts. The transmitter is designed to work with the RSX-K02 receiver. The range of the set is approximately 4km in conditions of direct visibility of the antennas. An antenna with a magnetic mount AMD-430 can be used as an option.
