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.
PRODUCT MANUAL
Designed, Manufactured and Supported in the USA
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
on Ringing or Off-Hook
Features
LDB-2
Ring / Loop
Detector
August 10, 2016
Applications
Specifications
www.vikingelectronics.com
Information: (715) 386-8861
VIKING
• 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
• 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
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
