Replacement Fan Modules
Replacement fan modules are available from National Instruments.
PXIe-1086DC Chassis Backplane Overview
Interoperability with CompactPCI
The design of the PXIe-1086DC provides you the flexibility to use the following devices in a
single PXI Express chassis:
•
PXI Express compatible products
•
CompactPCI Express compatible 2-Link system controller products
•
CompactPCI Express compatible Type-2 peripheral products
•
PXI peripheral products modified to fit in a hybrid slot
•
Standard CompactPCI peripheral products modified to fit in a hybrid slot
System Controller Slot
The system controller slot is Slot 1 of the chassis and is a 2-Link configuration system slot as
defined by the CompactPCI Express and PXI Express specifications. It has three expansion
slots for system controller modules that are wider than one slot. These slots allow the system
controller to expand to the left to prevent it from using peripheral slots.
The backplane connects the system slot to two PCI Express switches using a Gen-2 x8 and a
Gen-2 x16 PCI Express link. These switches distribute PCI Express connections to the
peripheral slots and to two PCI Express-to-PCI bridges to provide PCI buses to the hybrid
peripheral slots. Refer to
PXIe-1086DC PCI Express Backplane Diagram
System slot link 1 is a Gen-2 x8 PCI Express link to PCI Express switch 1, providing a
nominal bandwidth of 4 GB/s (single direction) between the system controller and PCI
Express switch 1. PXI Express peripheral slots 2-10 are connected to PCI Express switch 1
with Gen-2 x8 PCI Express links and are downstream of system slot link 1. PCI Express-to-
PCI bridge 1 is connected to PCI Express switch 1 and provides a 32-bit, 33 MHz PCI bus for
hybrid peripheral slots 2-9. PCI Express switch 1 also is connected to PCI Express switch 2
with a Gen-2 x8 PCI Express link for advanced backplane configurations.
System slot link 2 is a Gen-2 x16 PCI Express link to PCI Express switch 2, providing a
nominal bandwidth of 8 GB/s (single direction) between the system controller slot and PCI
Express switch 2. PXI Express peripheral slots 11-18 are connected to PCI Express switch 2
with Gen-2 x8 PCI Express links and are downstream of system slot link 2. PCI Express-to-
PCI bridge 2 is connected to PCI Express switch 2 and provides a 32-bit, 33 MHz PCI bus for
hybrid peripheral slots 11-18. PCI Express switch 2 also is connected to PCI Express switch 1
with a Gen-2 x8 PCI Express link for advanced backplane configurations.
The system controller slot also has connectivity to some PXI features such as: PXI_CLK10,
PXI Star, PXI Trigger Bus and PXI Local Bus 6.
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PXIe-1086DC User Manual and Specifications
