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.