Doorbell & Telephone Ring Detector
ELK-930

Product Details
Doorbell
• Detects Doorbell Activation Current.
• Inputs for Two Separate Pushbutton Locations.
• No Interference With Lighted Pushbuttons.
• Produces an Open Collector Output.
• Powered by the Doorbell Transformer.
Telephone
• Detects Telephone Ringing Voltage.
• Provides an Open Collector Output that follows the ringing pattern.
• Small, Compact Size.
• Double Sided Foam Tape Provided For Mounting.
• Packaged in Reusable Poly Storage Box.
• Lifetime Limited Warranty.
• Detects Doorbell Activation Current.
• Inputs for Two Separate Pushbutton Locations.
• No Interference With Lighted Pushbuttons.
• Produces an Open Collector Output.
• Powered by the Doorbell Transformer.
Telephone
• Detects Telephone Ringing Voltage.
• Provides an Open Collector Output that follows the ringing pattern.
• Small, Compact Size.
• Double Sided Foam Tape Provided For Mounting.
• Packaged in Reusable Poly Storage Box.
• Lifetime Limited Warranty.
• Max Input on Doorbell Boards: 24 Volts AC Nominal
• Max Output: 40mA @ 12 Volts D.C.
• Doorbell Detection Current: 900mA min.
• Size: 3.4" x 2.75" x .625"
• Max Output: 40mA @ 12 Volts D.C.
• Doorbell Detection Current: 900mA min.
• Size: 3.4" x 2.75" x .625"
The ELK-930 Doorbell Detector monitors the current draw of a doorbell and produces an open collector output when the pushbutton is pressed and the doorbell draws 900mA or more. This open collector output can be used to trigger an automation controller input that utilizes high to low switching (pull to ground) for activation. The ELK-930 Telephone Ring Detector monitors the voltage on the telephone line and produces an open collector output (pull to ground) when the telephone ringing voltage is approximately 50 Volts or greater. The output follows the ringing pattern.
Resources
• ELK-930 (2 Doorbell Ring Detectors and 1 Telephone Ring Detector)
• 4 pieces of Double Sided Tape
• Instructions
• 4 pieces of Double Sided Tape
• Instructions
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