Data Translation DT330 Series, Руководство по началу работы

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Wiring Signals
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Before Wiring
This section describes wiring recommendations and the pin
assignments of the STP68 or STP69-DIN screw terminal panel, which
are important when wiring signals.
Wiring Recommendations
Keep the following recommendations in mind when wiring signals to
the STP68 or STP68-DIN screw terminal panel:
• Use individually shielded twisted-pair wire (size 14 to 26 AWG)
when using the DT330 Series board in a highly noisy electrical
environment.
• Separate power and signal lines by using physically different
wiring paths or conduits.
• To avoid noise, do not locate the STP68 or STP68-DIN screw
terminal panel 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.
• When first installing the board, it is recommended that you do
the following:
−
Wire an oscilloscope or voltage meter to analog output
channel 0.
−
Wire a digital input to digital I/O Port A.
CAUTION:
To avoid electrical damage, ensure that power is turned off to the
computer and to any attached devices before wiring signals to the
STP68 or STP68-DIN screw terminal panel.