- Viking Advanced Loop Detector loop detect board for ring and line "in use" contact closures- Provide a contact closure during ringing and/or off-hook- 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- Disable input is ideal for two-button emergency phones such as Viking's E-1600-20A allowing "Info" button calls to be placed without activating the relay (turning on the emergency strobe light camera etc.)- 3 DIP switches are provided for turning ring detection on or off off-hook loop detection on or off and for selecting a ring cadence mode which allows the relay to follow ringing or to remain activated during the off time of standard ring cadence- Complete with a 12 VDC power adapter- Can also provide switched 12VDC .35 Amp output to power external lights etc. during ringing and/or off-hook conditions- Applications: control a strobe or beacon light for ring indication provide relay closures on off-hook trigger a security camera trigger a tape recorder phone "in use" indicator- Detects ring voltage and off hook loop current- On/off switches for ring detection and off hook/loop detection- Screw terminal connections- Selectable ring cadence mode (relay can remain on between rings)- Wall mountable with foam tape (included) or screws (not included)- Switched 12V DC output (follows relay activation for powering strobe lights cameras etc.)- One set of (NO) normally open and (NC) normally closed relay contacts provided- Disable input ideal for use with two-button emergency phones (E-1600-20A) will not activate relay on "Info" calls- Made in the USA- 1 Year manufacturer's warranty- Power: 120V AC to 12V DC adapter providedVKLDB3