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Automatyczny system alarmowy DIAL 07F by Imi Michał Smulski is a document available to read on EtoBox.

What is Automatyczny system alarmowy DIAL 07F about?

- The device is an alarm telephone dialer that communicates the occurrence of an alarm by transmitting an electronic signal over the telephone line. - It works with telephone exchanges that do not change the feeding of the telephone line when the subscriber reports, but the alarm communication is transmitted twice during the connection. - The alarm is triggered by applying a long (over 4s) signal to input A1.

Author

Imi Michał Smulski

Language

EN