The SR-1 will generate loud ringing from an analog ringing line or from a dry contac closure. There are 4 different ringing sounds to choose from. Loudness is easily adjusted with a volume contro; knob and test button. The AR-1ft. s unique sounding ring us useful for employees that often work away from their desks allowing them to instantly recognize when their phone is ringing.
Supports Very High Speed Data. Stimulates loop start phone lines * Allows 2-way communication between telecom devices or systems. Produces precise dial ringback busy reorder and S. I. T tones * 911 mode for classroom training * Audio input/output jack for amplified speaker or loading voice mail systems...
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.