Ideal for Use with Two-Button Emergency Phones!
The LDB3 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 LDB3s disable input is ideal for two-button emergency phones, such as Vikings E-1600-20A, allowing "Info" button calls to be placed without activating the relay (turning on the emergency strobe light, camera, etc.).
Three 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.
The LDB3 comes complete with a 12 VDC power adapter, and can also provide switched 12VDC .35 Amp output to power external lights, etc. during ringing and/or off-hook conditions.
Also known as
- Viking Electronics VK-LDB-3 Loop And Ring Detector Board
- New Viking Electronics Loop And Ring Detector Board Wall Mountable AC/DC Power A
- Viking Phone Accessories Loop and Ring Detector Board VK-LDB-3
- Viking Electronics LDB-3 Advanced Ring/Loop Detector