PRODUCT MANUAL
Designed, Manufactured and Supported in the USA
C O M M U N I C A T I O N & S E C U R I T Y S O L U T I O N S
Provide a Contact Closure
During Ringing and/or Off-Hook
Features
Ideal for Use with Two-Button Emergency
Phones!
The
LDB-3
Advanced Loop Detector monitors an
analog phone line for ringing and/or an off hook
condition. A built-in relay can be activated when ei-
ther of these conditions are detected. This is ideal
for monitoring line status or for providing a visual
indication of such.
The
LDB-3
’s disable input is ideal for two-button
emergency phones, such as Viking’s
E-1600-20A
,
allowing “Info” button calls to be placed without ac-
tivating 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 al-
lows the relay to follow ringing or to remain acti-
vated during the off time of standard ring cadence.
The
LDB-3
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.
• Detects ring voltage and off hook loop current
• On/off switches for ring detection and off-
hook/loop detection
• Screw terminal connections
• Selectable ring cadence mode (relay can re-
main on between rings)
• Wall mountable with foam tape (included)
orscrews (not included)
• Switched 12V DC output (follows relay activa-
tion for powering strobe lights, cameras, etc.)
• One set of (NO) normally open or (NC) nor-
mally closed relay contacts provided
• Disable input, ideal for use with two-button
emergency phones (
E-1600-20A
), will not acti-
vate relay on “Info” calls, see
DOD# 215
for
more information on the
E-1600-20A
• Control a strobe or beacon 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
Relay Contact Rating:
.5A @ 125V AC/1A @ 30V DC
Maximum Current Draw Auxiliary 12V DC Output:
350mA
Minimum Loop Current:
15 mA
Disable/Info Switch Input:
50mA/80mW maximum
Ringer Equivalence:
0.5 A REN
Connections:
2 position and 11 position screw terminal
blocks
LDB-3
Line Status LED Strobe/
Beacon Light Kit
December 16, 2016
Applications
Specifications
www.vikingelectronics.com
Information: (715) 386-8861
VIKING
