Chassis Grounding Screw
Use the grounding screw to connect the chassis to earth ground. An earth ground connection is
optional.
RS-485/422/232 Serial Port
The IC-3173 (IP67) has a single serial port that can operate in either RS-485/422 mode or
RS-232 mode. Set the serial port mode in the BIOS setup utility.
The serial port is an 8-position A-code M12 connector, which can connect to serial devices,
such as PLCs, scanners, and lighting devices.
NI recommends the following serial cables for the IC-3173 (IP67).
Cable
Part Number
8-position M12 A-coded pigtail serial cable for IC-3173 (IP67), 5 meters
785933-01
Figure 37. RS-485/422/232 Serial Port Pin Locations (IC-3173 (IP67))
Pin 1
2
3
4
5
6
7
8
Table 21. RS-485/422/232 Serial Port Pin Descriptions
Pin
RS-485/422 Mode
RS-232 Mode
1
No Connect
No Connect
2
TXN
Unused
3
TXP
Unused
4
RXN
GND
5
RXP
Unused
6
Unused
TX
7
Unused
RX
8
GND
Unused
IC-317x User Manual
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© National Instruments
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