Supervises the main and backup phone lines for sustained drop in voltage and alerts users with a built-in sounder and indication at the keypad and monitoring center.
Installs in panel enclosure and connects to panel through a wire harness and phone cord
Indicate a phone line failure to the premises and central station
Switches to secondary phone line communication when the primary line is down
Phone line trouble is displayed in the keypad Status List as a System Trouble
For all of our modules and expanders, please view our catalog.
