NI PXIe-8623

NI PXIE-8623 is a PXI Express, 4-port, 100/1000BASE-T PXI automotive Ethernet interface module designed for automotive ECU test and validation with NI-XNET. NI identifies it as a module/interface card rather than a chassis, and the reviewed official product information points to part number 787992-01 for the documented orderable model. Source: https://www.ni.com/en/shop/hardware/ethernet/model-pxie-8623

The module provides four RJ45 front-panel Ethernet ports over unshielded twisted pair and supports 100 Mbit/s and 1 Gbit/s operation. NI states the PXIe-8623 can provide up to four independent endpoints or up to two network terminal access points (TAPs), giving flexibility for in-line network observation and interface simulation in PXI-based test systems. Source: https://www.ni.com/en/shop/hardware/ethernet/model-pxie-8623 ; https://www.ni.com/docs/en-US/bundle/pxie-8623-feature/page/tap-mode.html

According to NI documentation, the ports can be configured as independent network interfaces and can operate in Direct mode or Tap mode. In Tap mode, the supported port pairings are Ports 1/2 and Ports 3/4, creating two TAP pairs. NI also states the module features onboard hardware timestamping and can operate as up to four separate IEEE 802.1AS masters or slaves; the local time keeper runs from PXI Clk10 when present on the chassis, while each port has an independent network time keeper using IEEE 802.1AS. Source: https://www.ni.com/docs/en-US/bundle/pxie-8623-feature/page/port-modes.html ; https://www.ni.com/docs/en-US/bundle/pxie-8623-feature/page/tap-mode.html ; https://www.ni.com/en/shop/hardware/ethernet/model-pxie-8623