The Viking Electronics VK-LDB-2 is a loop and ring detect board designed for monitoring analog phone lines. It identifies either a ringing condition or an off-hook (in-use) status, providing relay closures based on these detections. This board is suitable for IT and business environments requiring automated responses to phone line activity. Potential applications include activating a strobe light to signal incoming calls in noisy areas or triggering a security camera when a phone line goes off-hook. The unit includes a power supply and offers adjustable time-out for relay closure, along with selectable normally open or normally closed relay contacts. It addresses the need for integrating analog phone line status into broader control or security systems without direct human intervention.
The VK-LDB-2 detects both ring voltage (ringing condition) and loop connect (in-use or off-hook condition) on an analog phone line. It requires a minimum ring voltage of 40Vrms to detect ringing.
The VK-LDB-2 includes a power supply and foam tape for wall mounting. Screws for mounting are not included.
Yes, the VK-LDB-2 provides two sets of relay contacts. These contacts are selectable as either normally open (NO) or normally closed (NC) to suit different application requirements.
Typical use cases include controlling a strobe light to indicate an incoming call or triggering a security camera when an analog phone line goes off-hook. It can integrate phone line status into various control or security systems.
VK-LDB-2 - Viking Electronics Loop and Ring Detect Board for Ring and Line in Usein. in. Contact Closures (On Ringing or