Measurement Computing Data Translation DT3010 Series, User Manual, Page: 52 / 232

Wiring Signals
51
Preparing to Wire to a Screw Terminal Panel
This section describes wiring recommendations when connecting signals to a DT3010 board
and screw terminal panel.
Wiring Recommendations
• Follow standard ESD procedures when wiring signals to the board.
• Use individually shielded twisted-pair wire (size 14 to 26 AWG) when using a DT3010
Series board 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 screw terminal panel and cabling next to sources that
produce high electro-magnetic fields, such as large electric motors, power lines, solenoids,
and electric arcs, unless the signals are enclosed in a mumetal shield.
• On the DT740 screw terminal panel, we recommend that you connect the shields as
follows:
−
Connect the analog shield to screw terminals TB35 and TB36, and to TB51 through
TB56.
−
Connect the digital shield to screw terminals TB105 and TB108.
−
Connect the analog and digital shields to one end only.
• When first installing the board, we recommend that you do the following:
−
Wire a function generator or a known voltage source to analog input channel 0 (use the
differential configuration).
−
Wire an oscilloscope or voltage meter to analog output channel 0.
−
Wire a digital input to digital I/O Port A.
−
Wire a external clock or scope to counter/timer channel 0.
−
If you have not done so already, install the DT3010 Series software.
−
Run the Quick DataAcq application (described in Chapter 5 starting on page 91 ) to
verify that the board is operating properly.
−
Once you have determined that the board is operating properly, wire the signals
according to your application’s requirements.
Using 5B or 7B Series Signal Conditioning Modules
When using a DT3010-268 or DT3010/32-268 with an STP268-EC screw terminal panel and a
5B or 7B Series signal conditioning backplane and modules, keep the following considerations
in mind:
• The 7BP04-1 backplane maps to single-ended analog input channels 0 to 3.
• The 5B08 and 7BP08-1 backplanes map to single-ended analog input channels 0 to 7.