Emergency telephone system BTS 4000 performs work without the need for any external power supply. All the energy required for 4-6 minutes of continuous operation, is performed via a call generator. The system has a complicated power amplifier is extremely low, the signal with small distortion of high power. The system can also be connected to the 24 VDC to ensure continuous operation under normal conditions. BTS 4000 automatically switches to emergency mode in the event of a network failure.
Dimensions: 240 x 144 x 70 mm (H x W x D).
Weight: 1.4 kg. (for wall mounting 1.8 kg.)
protection; IP 22 (wall-mounting version).