Product features
1. Emergency telephone users can communicate directly with emergency telephone control center operators
2. After the user presses the telephone button, the user can automatically make a call to the monitoring center console device and transmit the native information.
3. Can provide audio and data transmission channel for tunnel broadcast Cable Broadcasting System
4. Integrated broadcast amplifier, equipped with broadcast amplifier module, can drive a number of broadcast speakers
5 . Broadcast function: can realize the broadcast single call, group call, full call and volume adjustment function
6. Support and monitoring system linkage, triggered fire and other emergencies, can automatically broadcast the fire broadcast
7. Clear Voice, loud voice, no feedback howling
8. When the door is opened illegally, the alarm information can be sent to the main engine to facilitate the management and maintenance of the tunnel management station
9. In line idle or after the end of the call, into power-saving mode, reducing standby power consumption
10. Support International Standard SIP protocol, interconnect with most systems
11.Support for one-button hands-free calls;
12. Protection level: IP65. ;
13. Installation: column type, column chassis installation hole location can be customized according to the project site;
Power amplifier features
1. The equipment is integrated into the emergency phone box when it leaves the factory.
2. 1 AUX input;
3. Rated Power: 60W/120W/240W (optional)
4. 4-16 euro fixed resistance output;
5. Advanced high efficiency power amplifier circuit;
6. Volume level 10 adjustable;
7. Output short circuit, over current, overload protection;
8. Frequency Response: 100 HZ-20 khz;
9. Total harmonic distortion: less than 0.1% ;
10. Noise ratio: 70 DB;
11. Power supply: AC 220V/50 -60 Hz;
