5
DTD-16 Plus Installation and Operation Manual
INSTALLATION
Relay connections
The eight relays are Normally Open/dry contacts. Make your connections to the
desired relays K1 A/B thru K8 A/B. Front panel led’s indicate when a relay is active.
Open Collectors Connections
The open collectors are labeled OC9 thru OC16. Make your connection between
the desired open collector and ground “GND”.
NOTE: Each open collector is rated at 12 vdc @ 50 ma.
NOTE: To access the DIP switches and/or jumper, remove all connections and
unscrew the two bottom screws, then open the case. Reverse the action to reassemble.
Dipswitch Setting
DIP-1
If DIP-1 is turned ON; all momentary outputs will become key-follow outputs.
This means that the selected output will turn ON when the last digit of the
momentary code is decoded and stay on for as long as that digit is being decoded.
This is useful for remote pan-tilt camera control.
DIP-2
When DIP-2 is ON, the “#” character will be translated to a CR/LF (0Dh 0Ah) on the
ASCII RS-232 output. This is useful for using DTMF to remotely control equipment
that requires a CR/LF termination. This allows you to use the “#” as an “Enter” key.
DIP-3
When DIP-3 is ON, codes programmed into odd channels, 1,3,5,7, etc., will operate relay one. Even channels, 2,4,6,7, etc., will operate relay 2. Relays 1 and 2 can
be programmed with any mode; momentary, latching or Xlatching.
DIP-4
When DIP-4 is ON, Relays will be engaged on the trailing edge of the DTMF
signal in both momentary and latching modes.
DTMF Tone Detection Jumper JP1
The DTD-16 Plus is equipped with a 4-position jumper, JP1. This is used to adjust
how fast the DTMF tones are detected.
F = Fast, 50ms ON / 50ms OFF. (default)
M = Medium, 100ms ON / 100ms OFF.
S = Slow, 150ms ON / 150ms OFF. To detect multiple tone bursts, the jumper
should be left in the default position F = Fast.
USB data Output
Each DTMF character will be converted to ASCII and outputted to the USB com
port at 9600,8,N,1.
Power
Insert the power plug into the power jack on the DTD-16 Plus and the wall transformer into the proper AC outlet. The power supply MUST be attached to the
power jack to properly power the unit. Verify that the power LED is lit.
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