National Instruments NI PXI-8430/16 RS232,

NATIONAL INSTRUMENTS NI PXI-8430/8 SERIAL INTERFACE MODULE 8 Port RS232

National Instruments NI PXI 8432/2 (RS232 Isolated) Tested completed

National Instruments USB-232/2 2Dual RS232 Isolated COM Adapter Test completed

National Instruments NI PXI-8430/16 RS232 Tested completed

National Instruments NI PXI-8430/16 RS232,

National Instruments PXI-6624 NI DAQ Card, 8-Channel Counter / Timer