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5
DSD-2 Installation and Operation Manual
PROGRAMMING
Programming
Dipswitch setting
DIPSwitch-1
OFF:
The DSD-2 detects 25 and 35 hertz tones, along with
combinational tones.
ON:
Optional frequency detection
DIPSwitch-2
OFF:
Tone detection disabled with a closure (active low).
ON:
Tone detection disabled without a closure (active high).
DIPSwitch-3
OFF:
200ms to 300ms tone detection time.
ON:
100ms tone detection time.
Operation
Power
Insert the power plug into the power jack on the DSD-2 and the wall transformer
into the proper AC outlet. Verify
that the power LED is lit.
Act
The Activity LED is set to trip at levels above –30dBu. For reliable tone detection,
feed the DSD-2 with program levels above 0dBu. The DSD-2 was designed to detect
tone levels down to -20dBu.
Clip
This led is set to illuminate when the input level is at +20dBu. The clip led should
never flash with normal program activity.
RS-232
Each detected tone will respond with a ASCII string via the RS-232 serial port at
9600,8,N,1.
25 hertz detection response:
25N<cr> = ON or 25F<cr> = OFF.
35 hertz detection response:
35N<cr> = ON or 35F<cr> = OFF.
Combination response: CDN<cr> = combo ON or CDF<cr> = Combo OFF.
The DSD-2 may be
disabled
via the serial port by sending the ASCII string;
*DD<cr>, or
enabled
by sending a *ED<cr>
You may verify if the DSD-2 is enabled or disabled by sending *SD<cr>
The DSD-2 will respond with DD<cr> for disabled or ED<cr> when the DSD-2 is
enabled.
