National Instruments AT-MXI MXIbus ISA Interface Card
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National Instruments AT-MXI MXIbus ISA Interface Card

This National Instruments AT-MXI MXIbus ISA Interface Card is used, and in excellent condition.

Part Number: 180775-01, 180775E-01, 180777-01

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Stock # 55178-2
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National Instruments AT-MXI MXIbus ISA Interface Card

  • Supports 32-Bit (A32), 24-Bit (A24) and 16-Bit (A16) Addressing
  • Supports Both 16-Bit (D16) and 8-Bit (D08) Data Transfers
  • Conforms to ISA Specification
  • Conforms to the MXIbus Specification


The National Instruments AT-MXI is a high-performance communication link that interconnects devices. MXI operates like modern backplane computer buses, but is a cabled communication link for very high-speed communication between physically separate devices. MXIbus interfaces can be used in a variety of platforms including: the VXIbus and VMEbus backplane systems and the IBM PC AT, EISA, PS/2, Sun SPARCstation, DECstation 5000, RISC System/6000, and Macintosh computer systems. These interfaces directly and transparently couple these industry-standard computers to the VXIbus and the VMEbus backplanes. Also, they transparently extend VXI/VME across multiple mainframes and seamlessly integrate external devices that cannot physically fit on a plug-in module into a VXI/VME system.

The AT-MXI can function as both a MXIbus slave and a MXIbus master. As a MXIbus slave, the AT-MXI supports 24-bit (A24) addressing to PC AT memory and 16-bit (A16) addressing to the AT-MXI communication registers and to the PC AT I/O space. As a MXIbus master, the AT-MXI supports 32-bit (A32), 24-bit (A24), and 16-bit (A16) addressing. Both functions support 16-bit (D16) and 8-bit (D08) data transfers. Also, under both functions, the AT-MXI supports MXIbus block-mode transfers.

Since the AT-MXI uses the same communication register set that is used by VXIbus Message-Based devices, other MXIbus devices can view the AT-MXI as a VXIbus device. In addition, this interface is able to function as the MXIbus System Controller and can terminate the MXIbus signals directly on the AT-MXI interface board. The AT-MXI supports the MXIbus arbitration lock and fairness options.

Product Family: AT-MXI, ATMXI, AT MXI, VXI-MXI, VXIMXI, VXI MXI, VXI-AT2000, VXI AT 2000, VXI AT-2000, VXI-AT-2000

Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.

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National Instruments AT-MXI MXIbus ISA Interface Card

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Manuals, Datasheets, Drivers, Links

NI AT-MXI Manual (pdf) 
NI AT-MXI Common Questions (pdf) 
Link to National Instruments Website 

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