Table 1.
RS-232 Serial Port Pinout
Pinout
Pin
Signal
Pin 1
Pin 5
Pin 6
Pin 9
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI/WAKE
You can use the Ring Indicator (RI) on pin 9 to wake the controller from a low-power state.
You can drive RI with a logic level high to wake the cRIO-9081. Refer to the specifications on
RS-485/422 Serial Port
The cRIO-9081 has an RS-485/422 serial port that is implemented with an RJ-50, 10-position
modular jack. The RJ-50 connector is isolated from the cRIO-9081. For more information
about the electrical isolation of the RS-485/422 port, refer to the specifications on
The following table shows the pinout for the RS-485 serial port.
NI cRIO-9081 User Manual
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© National Instruments
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