Special Features:

Network communication card; plugs into 3-cpu3 central processing unit module; supports class a (style 7) or class b (style 4) data circuits and digitized audio circuits; twisted pair wire, 18 awg (0.75mm) min; circuit length: 5000 ft (1.524 m) between any 3 panels; 90 ohms max circuit resistance; 0.3 uf max circuit capacitance; 32-120 degree f (0-49 degree c); 90 percent relative humidity, non-condensing; standy and alarm 55 ma

Properties: