National Instruments NI PXI-8360 用户手册

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This PCI Express device consists of one upstream and one downstream 
PCI Express physical interface. It buffers the PCI Express signals and 
drives them onto the cable.

The high-speed cable connector provides all necessary signals to connect 
an NI ExpressCard-8360 and an NI PXI-8360 or NI PXIe-8360. These 
signals include the PCI Express transmit and receive pair, the system clock, 
a reset, and a presence-detect signal.

The PCI Express Base Specification defines a PCI Express-to-PCI bridge 
as a device that connects a PCI Express fabric and a PCI hierarchy. On the 
NI PXI-8360, the PCI Express-to-PCI bridge connects the x1 PCI Express 
link and the PCI bus in a PXI or CompactPCI chassis. A bridge on a 
PXI Express backplane (not shown) connects the PCI Express link to the 
PXI and hybrid slots.

The PCI Express Base Specification defines a PCIe switch as a logical 
collection of PCIe-to-PCIe bridges. For the NI PXIe-8360 the PCIe switch 
fans out the front panel x1 PCIe link to four x4 PCIe links in the PXIe 
chassis.

The LEDs on the NI PXI-8360 and the NI PXIe-8360 provide status 
information about power supplies and link state. The NI PXI-8360 and 
NI PXIe-8360 have two LEDs, one for power supply status and one for link 
state.