Viking ldb-3 Service Manual

mode which allows the relay to follow ringing or to remain activated 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.

LDB-3

LDB-3

Advanced Ring/

Loop Detector

January 8, 2003

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 either 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 activating 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

Provide a Contact Closure

During Ringing and/or Off-Hook

PPhhoonnee......771155..338866..8888661

1

hhttttpp::////wwwwww..vviikkiinnggeelleeccttrroonniiccss..ccoom

m

• Detects ring voltage and off hook loop current

• On/off switches for ring detection and off­hook/loop detection

• Screw terminal connections

• Selectable ring cadence mode (relay can remain
on between rings)

• Wall mountable with foam tape (included) or
screws (not included)

• Switched 12V DC output (follows relay activation
for powering strobe lights, cameras, etc.)

• One set of (NO) normally open or (NC) normally
closed relay contacts provided

• Disable input, ideal for use with two-button
emergency phones (E-1600-20A), will not
activate relay on “Info” calls

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

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

PPrraaccttiicce

e

T

T

EELLEECCOOM

M

S

S

OOLLUUTTIIOONNSSFFOORRTTHHE

E

221

1

SST

T

C

C

EENNTTUURRY

Y

TECHNICAL

TECHNICAL

FFeeaattuurrees

s

SSppeecciiffiiccaattiioonns

s

?

Need More Information on the E-1600-20A?

Call [phone] and select 215.

• Control a strobe or beacon light for ring indication

• Provide relay closures on off-hook

• Trigger a security camera

• Trigger a tape recorder

• Phone “In Use” indicator

AApppplliiccaattiioonns

s

Z3

Z2

R4

R7

R9

R8

CR

IInnssttaallllaattiioon

n

A. Using Screws (not included)

B. Using the Included Tape

Step 1. Unsnap the plastic cover and remove the top screw holding the circuit board.

Step 2. Loosen the bottom screw and rotate the circuit board to the left, exposing the

two mounting holes in the base.

Step 3. Screw the base to the wall, etc. using (2) #6 flathead or sheetrock screws.

Note: Make sure the screw heads are fully driven into the base to avoid
shorting the circuit board leads.

Step 1. Clean the back of the LDB-3 and the surface you are mounting to with rubbing

alcohol before mounting.

Step 2. Remove the backing on one side of the tape and adhere to the LDB-3. Remove

the rest of the backing and press unit firmly to surface you are mounting to.

C. Preparing the Power Supply

Step 1. Cut off the barrel connector on the power

supply (see right).

Step 2. Separate and strip wires (see right).

Step 3. Connect to the screw terminal block on the

LDB-3, then plug in power supply (see right).

Z3

Z2

R8

CR

IF YOU HAVE APROBLEM WITH A VIKING PRODUCT, PLEASE CONTACT: VIKING TECHNICAL SUPPORT AT [phone]

Our Technical Support Department is available for assistance Monday 8am - 4pm, Tuesday-Friday 8am - 5pm central time. So that we can give you better service, before you call please:

1. Know the model number, the serial number and what software version you have (see serial label).

2. Have your Technical Practice in front of you.

3. It is best if you are on site.

WARRANTY

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 date manufactured, which ever is greater. 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. Customer must contact Viking's Technical Support Department at 715-386-8666 to obtain a Return Authorization (R.A.) number.

This warranty does not cover any damage to the product due to lightning, over voltage, under voltage, accident, misuse, abuse, negligence or any damage caused by use of the product by the purchaser or
others.

Vikings sole responsibility shall be to repair or replace (at Viking's option) the material within the terms stated above. VIKING SHALLNOTBE LIABLE FOR ANYLOSS OR DAMAGE OF ANYKIND INCLUD­ING INCIDENTALOR CONSEQUENTIAL DAMAGES RESULTING DIRECTLYOR INDIRECTLY FROM ANY BREACH OF ANY WARRANTY EXPRESSED OR IMPLIED, OR FOR ANY OTHER FAILURE OF
THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
WHICH ARE HEREBY EXCLUDED BEYOND THE ONE YEAR DURATION OF THIS WARRANTY. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not
apply to you.

RETURNING PRODUCT FOR EXCHANGE

The following procedure is for equipment that has failed out-of-box (within 10 days of purchase):

1. Customer must contact Viking’s Technical Support at 715-386-8666 to determine possible causes for the problem. The customer MUSTbe able to step through recommended tests for diagnosis.

2. If the Technical Support Product Specialist determines that the equipment is defective based on the customer's input and troubleshooting, a Return Authorization (R.A.) number will be issued. This number is valid

for fourteen (14) calendar days from the date of issue.

3. After obtaining the R.A. number, return the approved equipment to your distributor, referencing the R.A. number. Your distributor will then replace the product over the counter at no charge. The distributor will
then return the product to Viking using the same R.A. number.

4. The distributor will NOT exchange this product without first obtaining the R.A. number from you. If you haven't followed the steps listed in 1, 2 and 3, be aware that you will have to pay a
restocking charge.

RETURNING PRODUCT FOR REPAIR

The following procedure is for equipment that needs repair:

1. Customer must contact Viking's Technical Support Department at 715-386-8666 to obtain a Return Authorization (RA) number. The customer MUSThave a complete description of the problem, with all pertinent

information regarding the defect, such as options set, conditions, symptoms, methods to duplicate problem, frequency of failure, etc.

2. Packing: Return equipment in original box or in proper packing so that damage will not occur while in transit. Static sensitive equipment such as a circuit board should be in an anti-static bag, sandwiched between
foam and individually boxed. All equipment should be wrapped to avoid packing material lodging in or sticking to the equipment. Include ALLparts of the equipment. C.O.D. or freight collect shipments cannot be
accepted. Ship cartons prepaid to: Viking Electronics, 1531 Industrial Street, Hudson, WI 54016

3. Return shipping address: Be sure to include your return shipping address inside the box. We cannot ship to a PO Box.

4. RAnumber on carton: In large printing, write the R.A. number on the outside of each carton being returned.

Step 1. Step 2. Step 3.

IMPORTANT: Do NOT plug in the

adapter until after Step 3 is completed.

0.25"

Advanced Loop Detector

120V DC

(+) Black

(-) Black with

White Stripe

VIKING

MODEL: LDB-3

SWITCHED 12 VDC

DISABLE

R

5

Z3

4
R

R7

©

OUTPUT

RELAY OUTPUT

PHONE/TERMINAL DEVICE

R

2

C

9
R

11

(.3A MAX)

10

N.C.

9

COM

8

N.O.

7

INPUT

LINE INPUT

Viking Electronics, Inc.

Hudson, WI 54016

1 2 3 4 5 6 7 8 9 10 11

(2) #6 Flathead

Screws

6

5

4

3

2

1

Z2

R

2

(INFO SWITCH)

R

2

8
R

Z2

Screws or Sheetrock

1 2 3 4 5 6 7 8 9 10 11

Mounting

Holes

R4R4R7R7R9R9R8

Z3

CR

R

2

5