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Designed, Manufactured and Supported in the USA
VIKING
S E C U R I T Y & C O M M U N I C A T I O N S O L U T I O N S
Provide a Contact Closure
The LDB-2 Ring/Loop Detector monitors an
analog phone line for ringing or an in-use
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.
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.
Features
• 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 two year warranty
www.vikingelectronics.com
Information: (715) 386-8861
PRODUCT MANUAL
on Ringing or Off-Hook
Applications
• 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
Specifications
Power: 120V AC to 12V DC adapter provided
Dimensions: 2.9" x 2.1" x 1.0" (74mm x 53mm x
25mm)
Shipping Weight: 0.86 lbs (0.4 kg)
Environmental: -15° F to 130° F(-26° C to 54°
C) 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
Ring / Loop
Detector
August 10, 2016
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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 Connect the incoming line to terminal block positions 3 and 4. No connection to terminal block positions 1 and 2 is required. In this manner, the LDB-2 can monitor for ringing any place along the ringing line. 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.
- Page 3 Additionally, the LDB-2 will detect an off-hook condition. If the device goes off-hook at any time, either with or without ringing, the relay will activate and remain activated for the duration of the off-hook condition.
- Page 4 TWO YEAR LIMITED WARRANTY Viking warrants its products to be free from defects in the workmanship or materials, under normal use and service, for a period of two years from the date of purchase from any authorized Viking distributor. If at any time during the warranty period, the product is deemed defective or malfunctions, return the product to Viking Electronics, Inc., 1531 Industrial Street, Hudson, WI., 54016.