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.
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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)
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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
.
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V
IK
IN
G
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
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
Z3
Z3
Z2
Z2
R
5
R
2
R4
R4
R7
R7
R9
R9
R8
R8
CR
CR
2
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
