Local Alarm Systems›Radio alarm RS1-4

Radio alarm RS1-4

The individual security alarm system consists of object device RT4-5, individual receiver RR4-5m, power supply, antennas and is used for information transmission about condition of object device's inputs (guarded zones), its reception, indication and transmission to other devices without cable mounting.

The system provides:

• Power supply voltage control and transmission of trouble signal to receiver if its level is decreasing;
• Self-control of the system by transmission of periodical test signals from object device and creating alarm signal on receiver in case of its reception failureæ;
• Transmission of received messages by receiver to "open collector" outputs.

Object device RT4-5

The object device RT4-5 is designed for collecting information about guarded object, processing and further transmission via wireless channel to individual receiver RR4-5m. Besides, object device controls its own supply and in case of it's decreasing (less than 10V) transmits information about it to the central alarm receiver. If conditions of inputs of the object device has not been changed for a long time the test message is formed and transmitted to the central alarm receiver.

Individual receiver RR4-5m

The individual receiver RR4-5m is designed for collecting and processing information, received from object device RT4-5.

RR4-5m provides:

• 8-message memory;
• Light and sound indication of the messages being received;
• Control of test messages from RT4-5 transmitter;
• "Open collector" outputs for connection of additional devices.

RR4-5m can perform in one of the two main modes:

• Mode with confirmation:
• In this mode it is necessary to confirm reception of each message from object device RT4-5 by pressing the button "RST" on the front panel of the receiver.
• Mode without confirmation:
• It is not necessary to confirm reception of messages in this mode. The sound switches off automatically in 6 seconds after message reception. Received message is displayed at once on the front panel of the receiver RR4-5m.