National Instruments NI SCXI-2400 Remote Communications Module

National Instruments NI 9870 cRIO Serial Interface Module, 4-Port RS232

National Instruments FP-1000 RS-232/RS-485 Network Interface

National Instruments NI PXI-8430/16 RS232 Serial Interface Module

National Instruments NI 9870 4 port RS232 Serial Module 198850A-01L

*USA* National Instruments NI PXI-8430/8 RS232 Serial Interface Module

National Instruments NI 184428-01 RS-232/485 10-Position RJ-45 to 9-Pin Male

NATIONAL INSTRUMENTS NI PXI-8430 RS232 MODULE 189564-01L