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PXIe-8881 Functional Overview

    Last Modified: September 18, 2020

    The PXIe-8881 is a modular PC in a PXI Express 3U-size form factor. The following figure is a functional block diagram of the PXIe-8881. Following the diagram is a description of each logic block shown.

    Figure 1. PXIe-8881 Block Diagram

    The PXIe-8881 consists of the following logic blocks on three circuit card assemblies (CCAs):

    • The processor is an Intel® Xeon® W-2245 Processor (8-Core, 3.9 GHz base, 4.5 GHz max turbo frequency).
    • The SO-DIMM block consists of four SO-DIMM sockets that can hold up to 64 GB of DDR4-2666 MHz PC4-21300 memory.
    • The processor provides the PCI Express interface to the PXI Express backplane.
    • The Platform Controller Hub (PCH) provides the USB, PCI Express x1, and LPC interfaces that connect to the peripherals on the PXIe-8881.
    • The DisplayPort 1.2 block consists of a 1.2 compatible DisplayPort connector.
    • The USB block consists of four Hi-Speed USB 2.0 connectors and two SuperSpeed USB 3.0 connectors.
    • The Ethernet Port 0 block consists of an Intel® I219 Gigabit Ethernet Connection.
    • The Ethernet Port 1 block consists of an Intel® I210 Gigabit Ethernet Controller.
    • The UART block connects to one serial port.
    • The SMB Front Panel Trigger provides a routable connection of the PXI triggers to/from the SMB on the front panel.
    • The Watchdog block consists of a watchdog timer that can reset the controller or generate triggers.
    • The PXI Express Connectors connect the PXIe-8881 to the PXI Express/CompactPCI Express backplane.
    • The GPIB block contains the GPIB interface.
    • The Thunderbolt 3 block contains the Thunderbolt 3 interface and connects to two USB-C connectors.

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