Bird Technologies BDS-Manual - Manual (Page 43)

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Analog I/O Spec - :
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Two analog inputs, 0 to 10V full-scale, 10K ohm input resistance.
Note: Can be assigned to any of the analog outputs or used for set-point or power threshold adjustment.
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Five individual outputs, 0-10 V DC full-scale, 1000 Ohm source impedance.
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Analog I/O DB15 header pin descriptions:
Enable Analog I/O - Enables/Disables analog I/O.
DAC Channel - Selects the DAC channel to configure and enable. All settings listed on the page pertain to the
selected DAC. There are 5 DAC channels, labeled “DAC0” – “DAC4”.
Equation - Allows a user to enter an equation that is processed by the receiver. The equation can be as basic as a
voltage output or as complex as the functions and controls allow. Measurement results can be included in the equa-
tion, as well as the readings from ADC0 & 1.
Note: The result of the equation is scaled according to the minimum and maximum value and voltage set-
tings. The DAC is programmed with the resulting voltage level.
Note: Update rate of the analog I/O is based on the measurement cfg (frequency selector). The DACs are
updated after a measurement set is available and the result of the equation is ready.
Averaging
The BDS offers two types of data averaging for Standard Tracking Mode: Simple (Fixed) or Moving. Both averaging
modes will reduce signal-to-noise ratio in a measurement. Averaging is performed in the receiver.
Figure 14 Averaging Dialog
Analog I/O Head Pin Description
Pin 1 ADC 1
Pin 2 ADC 0
Pin 3 GND
Pin 4 DAC 4
Pin 5 DAC 3
Pin 6 DAC 2
Pin 7 DAC 1
Pin 8 DAC 0
Pin 9 - 15 GND
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15