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TECHNICAL
TECHNICAL
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• Detects ring voltage and loop connect
• Screw terminal connections
• Wall mountable with foam tape (included) or
screws (not included)
• Auxiliary 12V DC output
• Adjustable time-out for relay closure
• Two sets of relay contacts provided
• Selectable NO (normally open) or NC (normally
closed) relay contacts
• Limited one year warranty
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Provide a Contact Closure on Ringing
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or Off-Hook
The LDB-2 Ring/Loop Detector monitors an analog phone line
for ringing or an in-use condition. A built-in relay can be activat-
ed when either of these conditions are detected. This is ideal for
monitoring line status or for providing a visual indication of such.
When monitoring for ring, an internal pot can be adjusted to
allow the relay closure to stay on steady, or follow standard ring
cadence.
The LDB-2 comes complete with a 12 VDC power adapter, and
can also provide 12V DC power through its auxiliary 12V DC
output terminals.
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• Control a strobe light for ring indication
• Provide relay closures on ring and off-hook
• Trigger a security camera
• Trigger a tape recorder
• Phone "In Use" indicator
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Power: 120V AC to 12V DC adapter provided
Dimensions: 74mm x 53mm x 25mm (2.9" x 2.1" x 1.0")
Shipping Weight: 0.4 kg (0.86 lbs)
Environmental: -26° C to 54° C (-15° F to 130° F) with 5% to
95% non-condensing humidity
Contact Rating: .5A @ 125V AC/1A @ 30V DC
Maximum Current Draw Auxiliary 12V DC Output: 350mA
Minimum Loop Current: 15 mA
Minimum Ring Voltage: 40Vrms
Ringer Equivalence: 0.5 A REN
Connections: 10 pin screw terminal block
LDB-2
LDB-2
Ring/Loop
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Detector
June 13, 2006
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Related Manuals for Viking LDB-2
Summary of Contents for Viking LDB-2
- Page 1 When monitoring for ring, an internal pot can be adjusted to allow the relay closure to stay on steady, or follow standard ring cadence. The LDB-2 comes complete with a 12 VDC power adapter, and can also provide 12V DC power through its auxiliary 12V DC output terminals.
- Page 2 Viking warrants its products to be free from defects in the workmanship or materials, under normal use and service, for a period of one year from the date of purchase from any authorized Viking distributor or 18 months from the...
- Page 3 D. Ring and Loop Detection If the application requires loop as well as ring detection, the LDB-2 must be placed between the phone line and the terminal device to be monitored. Connect the incoming line to terminal block positions 1 and 2 and connect the termi- nal device to positions 3 and 4, as shown in the diagram above.
- Page 4 Due to the dynamic nature of the product design, the information contained in this document is subject to change without notice. Viking Electronics, and its affiliates and/or subsidiaries assume no responsibility for errors and omissions contained in this information. Revisions of this document or new editions of it may be issued to incorporate such changes.