Functional characteristics:
1) Send all kinds of information through the special wireless network and the special wired network for civil air defense, and receive the echo information of the middle, regional and various multimedia civil air defense alarm controllers.
2) Air defense alarm includes three kinds: early warning, air alarm and police release.
3) Disaster warning includes eight kinds: tsunami, fire, earthquake, flood, typhoon, chemistry, debris flow, radioactivity, etc.
4) To generate all kinds of alarm, test and forced termination information through the control panel;
5) The alarm controller parameters can be changed remotely and remotely.
6) Receive all kinds of alarm, test, voice data and file data sent by multi-function alarm control management system through serial port.
7) It can send all kinds of information to a single, part or all of the middle or regional or multimedia terminal controllers through the special wireless network for civil air defense and the special wired network according to the system parameters.
8) It can receive information sent by a single, part or all of the intermediate or regional or multimedia terminal controllers through a dedicated wireless network for civil air defense and a dedicated wired network;
9) It has the function of two-way real-time communication with intermediate controller and alarm controller.
10) The received signal can be transmitted to the multi-function alarm control and management system through serial or network ports.
11) Analog speech signals can be broadcasted through the civil air defense wireless network.
12) It can send the running status, fault information and warning information to the multi-functional alarm control and management system automatically or manually.
Working conditions:
1) ambient temperature: - 25 ~55;
2) Relative humidity: 95%/40 C;
3) Power supply conditions: 220VAC & plusmn; 10%, frequency: 50Hz & plusmn; 1Hz.
Technical Indicators:
1) Transmitting carrier power: 1-25W;
2) Carrier frequency tolerance: <2.5 ppm;
3) Working frequency band: designated frequency band for civil air defense;
4) Channel spacing: 25kHz;
5) Working mode: Simple frequency, half-duplex frequency, compatible with digital telephone;
6) Wireless transmission rate: 4.8 kbps/9.6 kbps/19.2 kbps;
7) Receiving sensitivity: (-119dBm);
8) FEC data sensitivity: =-123 dBm ();
9) When the channel error rate is equal to or equal to the channel error rate, the false alarm probability is equal to or equal to or equal to the channel error rate.
10) When the channel error rate is equal to or equal to the channel error rate, the probability of missing an alarm is equal to or equal to or equal to the probability of missing an alarm.
11) When the channel error rate is equal to or equal to the channel error rate, the false alarm probability is equal to or equal to or equal to the channel error rate.
12) adjacent channel power: > 65dB;
13) omnidirectional antenna gain: > 6dB~8dB;
14) Modulation mode: FSK;
15) Start-up time of transmitter: <50ms;
16) Standby power consumption: about 21 W;
17) Peak power consumption: about 101W.