The basic call station can broadcast artificial broadcast or

 prerecorded broadcast to any pre specified area. The basic call station is equipped with a microphone (with flexible flexible handle), push to talk button, speaker and headset jack. The extended LBB 4430 / 00 can contain up to 16 keyboards (LBB 4432 / 00 or LBB 4434 / 00) with 8 programmable keys. In addition, it can be extended by using the numeric keyboard (PRS ￣ csnkp). Basic function call stations are equipped with monitored cardioid directional microphones with gooseneck and excellent speech clarity. The limiter and speech filter improve the definition and prevent the audio clipping. It also has volume controls for monitoring speakers and headphones. When playing music or prerecorded information, the call station will activate the speaker. When the headset is connected, it will replace the microphone and speaker. The call station has its own DSP, which can convert between analog audio and digital audio. Audio processing includes sensitivity adjustment, clipping and parameter equalization. Through the serial communication link, the call station can connect up to 16 call station keyboards. The call station will power these keyboards. Users can assign up to 224 priorities to the call station. All configuration can be done through Praesideo network controller. The call station is fully monitored and supports fault protection operation. Even if the Praesideo network controller fails, the call station can still connect the emergency call. Control unit and indicator light · 3 LED status lights · configurable "push to talk" key · speaker / headphone volume control interconnection between two systems network connection serial data and power interface for call station keyboard 3.5 mm headphone jack certificate and approved safety in accordance with IEC 60065 / en 60065 and immunity in accordance with en 55103 ￣ 2 / en 50130 ￣ 4 / en 50121-4 standard heat dissipation in accordance with en 55103-1 / fcc-47 part 15b emergency compliance with en 60849 / en 54 ￣ 16 / ISO 7240 ￣ 16 standard navigation compliance with IEC 60945 regional certification European CPR EU_ CPR CE

Sales telephone (same number of wechat): 13428785305 QQ: 2461903042