10 Keysight PXI/AXIe Chassis Reference Guide
Understand the system hardware connections
Embedded Controller
An embedded controller, such as Keysight's M9035A, M9037A, or M9038A PXIe
embedded controller, is a small form-factor, Windows-based PC designed for
installation in the system controller slot 1 of the chassis. An embedded controller
consumes two or three expansion slots to the left of the PXIe chassis slot 1.
Figure 5 shows how you can utilize the Thunderbolt ports on M9038A to
communicate to a second chassis.
Figure 5
M9038A Embedded Controller to a second PXIe chassis
In an AXIe chassis, the embedded controller, such as the M9537A AXIe
Embedded Controller, is installed in slot 1.
Chassis Backplane
PXIe Chassis Backplane and Supported Module Types
Keysight PXIe chassis backplanes support different type of modules. This gives
the system designer flexibility to mix and match the number and location of PXIe
and hybrid-compatible modules. The hybrid slots support the three types of
boards shown below in Figure 6. A Type 2 board connects to both XP4, which
contains the PXIe instrumentation signals, and XP3, which contains the PCIe
signals. A 32-bit CompactPCI board connects to only the CompactPCI signals. A
PXI board connects to both the XP4 (PXI instrumentation signals) and the
CompactPCI signals. Refer to the PXIe chassis user guide and the Keysight PXIe
Chassis Interactive Block Diagram for detail of the pin-outs.