Figure 33. Connecting Single-Ended Line Drivers
Diff In 0+
Diff In 0–
Phase A
Twisted Pair
Twisted Pair
Diff In 1+
Diff In 1–
Phase B
External Device
Industrial Controller
+
–
+
–
TTL I/O
The following image shows the circuit for a bidirectional TTL I/O.
Figure 34. TTL Input/Output Circuit
100
Ω
TTL_OUT
TTL_OE
TTL_IN
10 k
Ω
FB
TTL I/O
Power Input Connectors
The IC-3173 (IP67) requires a power supply to power the system and, if you want to use the
isolated outputs, a power supply to power the isolated outputs.
NI recommends the following accessories for the IC-3173 (IP67).
Cable
Part Number
4-position M12 T-coded pigtail power cable for IC-3173 (IP67), 3 meters
785930-01
4-position M12 T-coded power connector for IC-3173 (IP67)
785928-01
The following figure shows the system power connector.
IC-317x User Manual
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© National Instruments
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