Viking LDB-3 Specifiche Scaricare il pdf (Pagina 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.

DOD# 653

ZF301700 Rev D

Printed in the U.S.A.

When the LDB-3 control module detects an incoming ring signal, it activates a set of normally open or normally closed contacts and

turns on the 12VDC output for activating the provided strobe light. With the Ring Cadence mode off (DIP switch 2 OFF), the relay

will activate and the strobe light will flash only during ringing. With the Ring Cadence mode ON (DIP switch 2 ON), the relay will

remain activated and the strobe light will remain flashing between rings.

A. Ring Indication (DIP Switch 1 ON)

When the LDB-3 control module detects an off-hook condition (loop current) on the brown and gray wires, it activates a set of nor-

mally open or normally closed contacts and turns on the 12VDC output for activating the provided strobe light. The relay contacts

will remain activated and the blue strobe light will flash during the off-hook condition and will stop flashing approximately 3 seconds

after the phone/terminal device on the brown and gray wires is back on-hook.

B. Off-Hook Indication (DIP Switch 3 ON)

A. Mounting the BLK-3-EWP with the E-1600-20A

1/2" Liquid Tight

Conduit Connector

1/2" PVC Conduit

Straps

1/2" Liquid Tight

Conduit

1/2" Liquid Tight

Conduit Connector

Step 1. Drill or use a knockout punch to provide a .875” diameter hole in the top of the VE-5x5.

Step 2. Make all conduit connections.

Step 3. Make all wire connections to the LDB-3 control module.

Step 4. Install the E-1600-20A as explained in its Technical Practice, DOD# 215.

The BLK-3-EWP can be used in conjunction with the E-1600-20A Two-Button Emergency Phone as

shown to the far right, however, special installation and mounting is required. Please follow the steps

below when using the BLK-3-EWP in conjunction with a surface-mounted E-1600-20A. A VE-5x5 sur-

face-mount box is required, see DOD# 424.

E-1600-20A

and VE-5x5

(not included)

F. Disable Feature

By connecting the Disable/Info Switch input of the LDB-3 control module to

the “Info” switch of Viking’s E-1600-20A, E-1600-20A-EWP, E-1600-52A or

E-1600-52A-EWP Emergency Phone, any outbound call initiated from the

“Info” button will not activate the strobe light. This way, only the

“Help/Emergency” outbound calls will activate the relay. Cut one of the “Info”

switch wires in half and connect each end to the blue wires on the LDB-3 con-

trol module as shown in the diagram at the right. Note: This Disable input is

NOT polarity sensitive. The “Disable” input can be connected to a switch for

remotely disabling/turning off the device (strobe light, camera, etc.) controlled

by the LDB-3. For more information, see DOD# 866.

Model: xxxxxxx

Viking Electronics, Inc. (715)386-8861

1531 Industrial St., Hudson, WI 54016

S/N: XXXXXX

P/N: xxxxxxx

Rear View of E-1600-20A

LDB-3

Control Module

Blue

Gel-Filled Butt

Connectors (included)

D. Relay Contacts

Normally open and normally closed relay contacts are available on the orange, purple and yellow wires. The contacts are rated at .5A @

125VAC/1A @ 30VDC. If contacts are driving an inductive load, place a suppression device at the load to snub high voltage spikes.

E. Switched 12V DC Output

The switched 12V DC output is a low current, 12-15VDC output that is turned on only while the ring/loop detect relay is activated.

This switched power output is ideal for lighting the included strobe light or providing 12-15V DC power to any device that draws less

than 350mAmps. The positive side is available on the red wire, and the negative side is on the black wire. Once all the line and

load connections have been made, plug in the 115 V AC wall adapter, and replace the cover.

B. Operating a BLK-3-EWP with a Contact Closure

390 Ohm - 750 Ohm, 1/2 Watt Resistor

(Radio Shack part # 271-1114, 271-1115,

271-1116, 271-1117 or equivalent)

1 2 3 4 5 6 7 8 9 10 11

Wire Nuts

(not included)

Black with

White stripe

120V AC

Red with

Black stripe

Black

Black with

White stripe

Brown

Gray

Green with

Yellow stripe

Red with

Yellow stripe

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