National Instruments FieldPoint FP-1000 RS-232/RS-485 Network Interface 184120D

National Instruments SCXI-1000 NI chassis with SCXI-1120, SCXI-1162, 2-SCXI-60

National Instruments NI Data Acquisition System SCXI-1102 1161 1180

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

National Instruments NI SCXI-2400 Remote Communications Module

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

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

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