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IMPORTANT: Electronic devices are susceptible to lightning and power station electrical surges from both the AC
outlet and the telephone line. It is recommended that a surge protector be installed to protect against such surges.
A. Mounting
The TDR-1 is designed to be wall mounted using the included foam tape or with screws as follows:
Unsnap the plastic cover
Step 1.
(see Diagram A right).
Loosen the screw and ro-
tate the circuit board to the
Step 2.
left, exposing the two
mounting holes in the base
(see Diagram B right).
Screw the base to the wall,
Step 3.
etc. using (2) #6 flathead or
sheetrock screws.
B. Wiring
Momentary Contact
Closure or Logic
Level Voltage Input
One Viking model PS-2 power supply
adapter can power up to (10) TDR-1s
by cascading screw terminals 3 and 4.
A. Trigger Inputs
Referring to the diagram in Installation, section B (above), configure shunt JP1 to set up the trigger
input for the proper input polarity. For a positive going input, put the shunt on the (+) side. For a
negative going input or dry contact closure, leave the shunt on the (-) side (factory default).
B. Time Delay Relay Mode
Referring to the diagram in Installation,
section B (above), choose the DIP switch
setting for the desired activation time using
the chart shown to the right.
Note: See Operation section A. Trigger
Inputs (page 3) to set proper input polarity.
2
Installation
120V AC
12V DC
Adapter
Included
JP1
(Trigger 1)
Trigger 1
DC Common (GND)
Programming
Diagram A
VIKING
©
MODEL: TDR-1
Time Delay Relay
+ 12V DC .3A MAX
DC COMMON
TRIGGER 2
TRIGGER 1
Viking Electronics
Hudson, WI 54016
Important: Make sure the screw heads are fully driven
into the base to avoid shorting the circuit board leads.
(GND)
12VDC In/Out
Switch 1
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Diagram B
(2) #6 Flathead
Screws or Sheetrock
Screws (not included)
Switches
1 2 3
N/O
Common
N/C
N/O
Common
N/C
Switch 2
Switch 3
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
ON
ON
Mounting
Holes
Internal View
DIP
ON
OFF
Trigger 1
.5 sec
1 sec
2 sec
4 sec
7 sec
10 sec
15 sec
20 sec
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