National Instruments PXI-1045 User Manual

Also see for NI PXI-1045: User guide

National Instruments PXI-1045 User Manual Manual pdf 12 page image

Chapter 1 Getting Started© National Instruments Corporation 1-5 NI PXI-1045 User ManualPXI-1045 Backplane OverviewInteroperability with CompactPCIThe PXI-1045 backplane is interoperable with 5 V and universalPXI-compatible products and standard CompactPCI products. This is animportant feature, because some PXI systems may require components thatdo not implement PXI-specific features. For example, you may want to usea standard CompactPCI network interface card in a PXI chassis.The signals on the backplane P1 connectors meet the requirements of theCompactPCI specification for both peripheral and system modules. Referto Appendix B, Pinouts, for pinout information.The PXI-specific signals are on the backplane P2 connectors and are foundonly on those signal lines reserved or not used in the CompactPCI 64-bitspecification. Therefore, all modules that meet the requirements of theCompactPCI 64-bit specification will function in the PXI-1045. Refer toAppendix B, Pinouts, for pinout information.The PXI-1045 has three PXI bus segments linked through two32-bit/33 MHz PXI bridges. The PXI bus segment divisions arerepresented on the front of the chassis by vertical lines as shown inFigure 1-1.Note The PXI-1045 backplane is 32-bit PCI; 64-bit CompactPCI cards will operate in32-bit mode in this chassis.The PXI-1045 backplane has +5 V V(I/O). Refer to the CompactPCISpecification PICMG 2.0 R3.0 for details regarding V(I/O).System Controller SlotThe system controller slot is slot 1 of the chassis as defined by the PXISpecification. It has three controller expansion slots for system controllermodules that are wider than one slot. As defined in the PXI specification,these slots allow the controller to expand to the left to prevent the controllerfrom using peripheral slots.