National Instruments 784977-01 PXI Ethernet Interface Module

The National Instruments 784977-01 or PXIe-8240 is a high performance Ethernet interface module designed for PXI Express systems. It features two 40 Gigabit Ethernet QSFP+ ports that enable efficient data transfer over 40GBASE-SR4 optic or Copper Direct Attach cables. The module delivers up to 40 GbE data rate per port and provides robust Ethernet connectivity for high bandwidth applications. The module is powered by the Intel XL710 Ethernet controller which ensures reliable and fast communication in demanding industrial and research environments.

The 784977-01 connects via a Gen3 x8 PCI Express link that ensures maximum data throughput when paired with a PXI Express Gen3 x8 chassis. This single slot 3U PXI Express peripheral module is compact yet offers high speed performance. The device includes LED indicators for link speed with green indicating 40 Gbps and yellow for 10 Gbps as well as solid and blinking lights to display link status and activity, respectively.

This ethernet interface module draws 0.64 A (max 0.96 A) from the 3.3 V rail and 1.1 A (max 1.65 A) from the 12 V rail with total power consumption between 15.31 W and 22.97 W. Its physical weight is 246.2 g and it fits within the standard PXI Express Specification 1.0. This makes it compatible with various test and measurement setups and allows easy integration into existing systems.

The NI 784977-01 module is designed for a wide range of operating conditions with an ambient temperature range of 0 °C to 55 °C and humidity levels from 10 % to 90 %. It can also withstand operating shocks up to 30 g peak and vibrations between 5 Hz to 500 Hz at 0.3 grms. The model meets IEC, MIL, and other industry standards for shock, vibration, and environmental performance.

This 784977-01 Ethernet module also adheres to stringent safety standards such as IEC 61010-1 and UL 61010-1. Its electromagnetic compatibility is in accordance with EN 61326-1, EN 55011 and FCC Part 15B. This makes it suitable for industrial and laboratory environments that require controlled emissions and immunity. The module's robust design and high-speed capabilities make it ideal for applications requiring fast, reliable Ethernet communication in PXI systems.