The following table describes how the serial ports on an sbRIO device may be notated differently depending on the working environment.

Note Environments can use use zero-indexed ports or one-indexed ports.
Table 672. sbRIO Serial Port Naming Conventions using the sbRIO-9651 SOM Development Kit Reference Carrier Board
Hardware Silkscreen Linux TerminalFile System (sysfs) VISA Names in MAX
Serial1 ttys0 ASRL1
Serial2 ttys1 ASRL2
Serial3 ttys2 ASRL3
Serial4 ttys3 ASRL4
Serial5 ttys4 ASRL5
Serial6 ttys5 ASRL6
Note In the table above, the rows for Serial 3, Serial 4, and Serial 6 indicate ports that are not implemented by default in hardware.