Data Translation DT9824, Руководство пользователя, Страница: 32 / 102

Chapter 3
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Keep the following recommendations in mind when wiring signals to the DT9824 module:
• Follow standard ESD procedures when wiring signals to the module.
• Use individually shielded twisted-pair wire (size 14 to 26 AWG) when using the DT9824
module in highly noisy electrical environments.
• Separate power and signal lines by using physically different wiring paths or conduits.
• To avoid noise, do not locate the DT9824 module and cabling next to sources that produce
high electromagnetic fields, such as large electric motors, power lines, solenoids, and
electric arcs, unless the signals are enclosed in a mumetal shield.
• Prevent electrostatic discharge to the I/O while the DT9824 module is operational.
• Connect all unused analog input channels to analog ground.
• When first installing the module, try wiring the signals as follows:
−
Wire a function generator or a known voltage source to analog input channel 1 using
the differential configuration.
−
Wire a digital input to digital input line 0.
−
Wire a digital output to digital output line 0.
−
Then, run the Quick DataAcq application (described in Chapter 4 starting on page 37 )
to verify that the module is operating properly.
Once you have determined that the module is operating properly, wire the signals
according to your application’s requirements.