ELK ELK-930 Doorbell & Telephone Ring Detector

The ELK-930 from ELK is a Doorbell & Telephone Ring Detector. The ELK-930 performs three functions. It can detect ring activation from one or two doorbell buttons and a single telephone line. It conveniently isolates the voltage and current and produces an open collector (pull to ground) output which can be used to trigger an automation controller, relay, timer, etc. The circuit is pre-scored so that the individual detectors may be snapped off (separated) from each other. 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.

Features

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

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

Specs

Manufacturer Elk Products Inc.

Category New

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"