When the detector detects a fire alarm, the sound base emits an alarm sound locally, but other sound bases in the same detection circuit do not emit an alarm sound.
The speaker base is installed in a 120 type dual embedded box. When the detector detects a fire alarm, the sound base emits an alarm sound on site, but other sound bases in the same detection circuit do not emit an alarm sound. Alternatively, the SIGA-CRR reverse polarity relay control module can be selected to make other sound bases in the same 24Vdc circuit emit alarm sounds. The sound base can sound an alarm through program commands.
Multi channel audio transmission system:
At present, only EST3 can transmit 8 types of digital voice information simultaneously through a pair of twisted pair cables, providing high-quality digital audio signals for emergency broadcasting and fire D-call. When used in conjunction with a fire alarm D-call control unit with a LCD display screen, EST3 provides a new fire emergency communication system.
Simple and intuitive operation panel:
Users of EST3 can operate it almost without further training. The features of the EST3 interface include a large (168 character) LCD display, continuous initial and final alarm displays, thin film buttons with text or graphics, standard operating symbols, replaceable prompt labels, and energy-saving background lighting.