The LDB-3 Advanced Loop Detector monitors an analog phone line for ringing or an off hook condition. A built-in relay can be activated when either of these conditions are detected. This is ideal for monitoring line status or for providing a visual indication of such. The LDB-3 s disable input is ideal for two-button emergency phones such as Viking s E-1600-20A allowing in.
Can activate 3 relay contacts * Operates with or without security codes * 12V talk battery* Cascade 3 RC-3ft. s for up to 9 outputs * Contact initiated pulse dialer...