NI PCIe-8371 x4 PCI Express MXI-Express Interface Board

The NI PCIe-8371 x4 PCI Express MXI-Express Interface Board provides high-performance connectivity between PCI Express host computers and MXI-Express peripherals or chassis. It creates a transparent, cabled PCI Express link that enables remote control and data acquisition of PXI Express and CompactPCI Express systems with full software transparency—no additional programming required for basic operation. The interface supports sustained throughput up to 798 MB/s over copper cables up to 7 meters long, making it suitable for distributed test systems in industrial automation, laboratory, and scientific research environments.

– Technical Specifications

• PCI Express Link: x4 lanes (x4 or wider slot required)
• Sustained Throughput: Up to 798 MB/s
• Data Rate: 10 Gbps bidirectional, simultaneous
• Maximum Cable Length: 7 meters
• PCI Express Compliance: Revision 1.0a and 1.1
• Power Consumption: +3.3 V at 150 mA typical (200 mA max); +12 V at 170 mA typical (320 mA max)
• Dimensions: 10.7 cm × 17.5 cm (PCB assembly)
• Weight: 0.06 kg typical
• Status Indicator: Tri-color LED for power and link status
• Cabling: Copper with latch-in connectors

– Key Features

• Software-transparent operation—PXI Platform Services required only for advanced PXI/PXI Express functionality
• Low latency remote operation over extended distances
• Simultaneous bidirectional data transmission
• Single x4 PCI Express slot installation
• Industrial-grade EMC compliance: EN 61326-1 (Class A), EN 55011 (CISPR 11), FCC 47 CFR Part 15B

– Operating Environment

• Temperature: 0 to 55 °C operating; -40 to 70 °C storage
• Humidity: 10 to 90% noncondensing (operating); 5 to 95% noncondensing (storage)
• Maximum Altitude: 2,000 m at 25 °C ambient
• Indoor use only

– Compatibility & Integration

Full PCI Express Specification compliance ensures compatibility with standard host systems and PXI Express/CompactPCI Express chassis. Part numbers 779723-01 and 199994x-01L.