03 | Keysight | M9018B and M9019A PXIe Chassis - Data Sheet
Hardware Overview
High performance PCIe fabric
Backplane configuration
The M9018B PXIe chassis utilizes a high performance, configurable
PCIe switch fabric that operates at Gen 2 speeds. The system slot
can be changed between a 2-link (2x8) or 4-link (4x4) configura-
tion. A 2-link configuration, optimized for the M9021A PCIe cable
interface, is also provided (a 2x8, 2-link configuration, with link
2 inactive). Four of the PXIe peripheral slots have a x8 PCIe link
providing a maximum data bandwidth of 4 GB/s. The 12 remaining
peripheral slots have a x4 PCIe link providing a maximum data
bandwidth of 2 GB/s. The system slot has a maximum data
bandwidth of 8 GB/s when all 16 PCIe lanes are utilized.
The M9018B and M9018B and M9019A PXIe chassis provide
16 hybrid-compatible slots for the ultimate in flexibility and
compatibility. The PCIe switch fabric for the hybrid slots is broken
into two segments, each serviced by its own PCIe-to-PCI bridge
(Figures 2 and 3). The PXIe slots are also organized into three
trigger bus segments with configurable interconnections between
segments. Two front panel trigger ports (SMB) are connected
to the PXI (0:7) trigger bus. This enables easy integration with
non-PXI instruments.
The M9019A PXIe chassis is built around an ultra-high perfor-
mance PCIe switch fabric that operates at up to Gen 3 speeds.
All of the PXIe peripheral slots have a x8 PCIe link providing a
maximum data bandwidth of 8 GB/s each. The two-link system
slot (x8 + x16) has a maximum data bandwidth of 24 GB/s when all
24 PCIe lanes are utilized. When combined with the M9023A PXIe
system module, M9049A PCIe adapter, and an external PC with
a Gen 3 x16 PCIe slot, up to 16 GB/s of data bandwidth can be
achieved between the PC and PXIe chassis.
Figure 1. M9018B and M9019A 18-slot PXIe Gen 3 chassis
Figure 2. Backplane configuration diagram of the M9018B PXIe 18-slot chassis.
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