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A. Ring Indication
When the LDB-2 detects an incoming ring signal, it activates a relay opening or closing the contacts across terminals
5 & 6 and 7 & 8 (depending on placement of JP1 and JP2). When wired as shown in Installation section C, and the
time-out POT is in the maximum position, the blue strobe light will flash during the entire ring cadence (on and off
cycles) and will stop flashing approximately 6 seconds after ringing has stopped.
B. Off-Hook Indication
When the LDB-2 detects an off-hook condition (loop current) on terminals 3 & 4, it activates a relay opening or closing
the contacts across terminals 5 & 6 and 7 & 8 (depending on placement of JP1 and JP2). When wired as shown in
Installation section D, and the time-out POT is set to minimum, the blue strobe light will flash during the entire off-hook
condition and will stop flashing approximately 2 seconds after the phone on terminals 3 & 4 has gone back on hook.
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A. Mounting the LDB-2 with the E-1600-20A
The BLK-1A Strobe Kit can be used in conjunction with the E-1600-20A Two-Button Phone as shown
to the far right, however, special installation and mounting is required. Please follow the steps below
when using the BLK-1A in conjunction with a surface-mounted E-1600-20A.
Step 1. Drill or use a knockout punch to provide a .875"
diameter hole in top of the VE-5x5.
Step 2. Make all conduit connections.
Step 3. Remove the LDB-2 circuit board from chassis.
Step 4. Make all wire connections to the LDB-2 circuit board.
Step 5. Using the double-backed tape provided, adhere the
LDB-2 circuit board (no chassis) to the inside right
hand wall of the VE-5x5 with the power connector
closest to the back wall as shown right.
Step 6. Install the E-1600-20A as explained in its Technical
Practice.
B. Controlling (4) Separate Strobe Lights
12V DC
Adapter
(included)
1
2
To Phone Line
To Phones
12V DC, 1.5 Amp minimum
Regulated Power Supply
(Radio Shack part # 22-504
or equivalent)
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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.
Fax Back Doc 652
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Need More Information on the E-1600-20A?
?
?
Call (715) 386-4345 and select 215.
3
4
5
6
7
8
9
10
Black (-)
Red (+)
Black (-)
Red (+)
Black (-)
Red (+)
Black (-)
Red (+)
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3
8
6
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7
1
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3
8
6
.
Front View of Optional
VE-5x5 (not included)
Need More Information on the VE-5x5?
?
?
Call (715) 386-4345 and select 424.
C. Operating a BLK-1A with a Contact Closure
12V DC
Adapter
(included)
To Strobe #1
To Normally Open (N/O)
Contact Closure.
When closed, the
To Strobe #2
strobe light is on.
To Strobe #3
To Strobe #4
6
6
6
8
6
6
6
Printed in the U.S.A.
LDB-2 Circuit
Board (included)
E-1600-20A shown
with VE-5x5
1
2
3
4
5
6
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1/2" Liquid Tight
Conduit Connector
1/2" PVC Conduit
Straps
1/2" Liquid Tight
Conduit
1/2" Liquid Tight
Conduit Connector
7
8
9
10
Black (-)
To Strobe
Light
Red (+)
1000 Ohm 1/4 Watt Resistor
(Radio Shack part # 271-1321
or equivalent)
7
1
5
.
3
8
6
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4
3
4
5
7
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3
8
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4
3
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