NI PXI-8231 Gigabit Ethernet Interface

The NI PXI-8231 is a single-port Gigabit Ethernet interface module for PXI, PCIe, and CompactPCI systems. It delivers high-speed network connectivity up to 1000 Mbit/s, supporting 10/100/1000Base-T standards for data acquisition, instrument control, and deterministic network communication across distributed test systems.

– Technical Specifications

• Interface: Gigabit Ethernet (1000Base-T)
• Port Configuration: 1 × 10/100/1000Base-T RJ-45 connector
• Data Transfer Rate: Up to 1000 Mbit/s
• Controller: Intel 82541PI-compatible or Intel 82540EM Gigabit Ethernet controller
• Cabling: Standard Category 5 Ethernet cables; maximum 100 meters cable length
• Speed Negotiation: Automatic detection and negotiation at 10 Mbit/s, 100 Mbit/s, or 1000 Mbit/s
• Practical Throughput: Approximately 500 Mbit/s transmission and 800 Mbit/s reception (system-dependent)
• Form Factor: PXI module, 10.0 cm × 16.0 cm
• Weight: 139 grams

– Key Features

• Backward compatible with 10BASE-T and 100BASE-TX Fast Ethernet networks
• Automatic cable polarity detection eliminates need for crossover cables
• Auto-MDI-X support for direct adapter-to-adapter connections
• GigE Vision camera support for industrial imaging applications
• Requires PXI peripheral bus master slot for onboard DMA and controller operation
• Compatible with IEEE 802.3 Ethernet standards

– Typical Applications

• Real-time data acquisition over networked PXI chassis
• Instrument control and remote device communication
• GigE Vision camera integration in automated test systems
• Deterministic network connectivity for time-critical measurements

– Compatibility & Integration

Operate within PXI and CompactPCI chassis providing bus master slots. Requires NI Vision Acquisition Software 8.2.1 or later and Measurement & Automation Explorer (MAX) for configuration. Compatible with Microsoft Windows Vista, Windows 2000, and Windows XP. Actual maximum speeds depend on CPU performance, PCI bus traffic, and network configuration.