GSM & PSTN Double Network Alarm System: The innovative ZUDEN ZDAS-16CA-16G adopts the latest GSM & PSTN dual-net secure technology, Dual-net alarm system with GSM wireless network(with GSM as backup) plus PSTN wired telephone network, GSM / telephone auto switch. This system has 16 wired Zones and16 wireless zones, and it can be used with all kinds of ZUDEN wired or wireless detectors; Both PSTN and GSM are compatible with ADEMCO Contact ID digital communication protocol.
The Integrated Dual-Net alarm systems from ZUDEN are designed to meet and exceed the needs and expectations of professionals. This model is specially widely used for Banking, ATM machines, jewelry shop, notebook house and etc where double protection on properties is required.
Working principle: GSM & PSTN Dual-Net Alarm System supports PSTN and GSM Double communication network. The user can plug the telephon line or not use telephone line. If have connected the PSTN wired telephone line with control panel, it will dial with the telephone line, and also send the SMS by the GSM SIM card while alarm. Otherwise, if not connected with telephone line, the control panel will auto-switch to dial out thru the built-in GSM module and send the SMS.
It means if any landline(Telephone line) is been cut by intruder or faulty, the system will auto-switch to gsm dialer to sent out the alarm signal and SMS to the house owner, policy and alarm receiving center.