LAM 853-041348-781 连接器
系统插槽链路1是到PCI Express交换机1的Gen-2 x8 PCI Express链路，在系统控制器和853-041348-781交换机之间提供4 GB/s（单向）的标称带宽。PXI Express外围插槽2-10通过Gen-2 x8 PCI Express链路连接到PCI Express交换机1，并且位于系统插槽链路1的下游。853-041348-781到PCI桥1连接到PCI Express交换机1，并为混合外设插槽2-9提供32位、33 MHz的PCI总线。系统插槽链路2是到PCI Express交换机2的Gen-2 x16 PCI Express链路，在系统控制器插槽和PCI Express交换机之间提供8 GB/s（单向）的标称带宽。PXI Express外围插槽11-18通过Gen-2 x8 PCI Express链路连接到PCI Express交换机2，并且位于系统插槽链路2的下游。PCI Express到PCI桥2连接到PCI Express交换机2，并为混合外围插槽11-18提供32位、33MHz的PCI总线。系统控制器插槽还可以连接到一些PXI功能，如：PXI_CLK10、PXI Star、PXI Trigger Bus和PXI Local Bus 6。默认情况下，系统控制器将使用PS_ON#信号控制电源。此线路上的逻辑低将打开电源。系统控制器插槽是机箱的插槽1，是CompactPCI Express和853-041348-781规范定义的2链路配置系统插槽。
它有三个系统控制器扩展插槽，用于比一个插槽宽的系统控制器模块。这些插槽允许系统控制器向左扩展，以防止系统控制器使用外围插槽。背板使用Gen-3 x8和Gen-3 x16 853-041348-781链路将系统插槽连接到两个PCI Express交换机。这些交换机将PCI Express连接分配到外围插槽和两个PCI Express到PCI桥，以向混合外围插槽提供PCI总线。有关NI PXIe-1085系列体系结构的概述，请参阅图1-3。系统插槽链路1是到PCI 853-041348-781交换机1的Gen-3 x8 PCI Express链路，在系统控制器和PCI Express交换机之间提供8 GB/s（单向）的标称带宽。PXI Express外围插槽2-10通过Gen-3 x8 PCI Express链路连接到PCI Express交换机1，并且位于系统插槽链路1的下游。PCI Express到PCI桥1连接到PCI Express交换机1，并为混合外设插槽2-9提供32位、33 MHz的PCI总线。PCI Express交换机1还通过用于高级背板配置的Gen-3 x8 853-041348-781链路连接到PCI Express交换机2。系统插槽链路2是到PCI Express交换机2的Gen-3 x16 PCI Express链路，在系统控制器插槽和PCI Express交换机之间提供16 GB/s（单向）的标称带宽。853-041348-781外围插槽11-18通过Gen-3 x8 PCI Express链路连接到PCI Express交换机2，并且位于系统插槽链路2的下游。PCI Express到PCI桥2连接到PCI Express交换机2，并为混合外围插槽11-18提供32位、33MHz的PCI总线。
853-041348-781 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. 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 2.853-041348-781 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,853-041348-781 33 MHz PCI bus for hybrid peripheral slots 11-18.
853-041348-781 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. By default, the system controller will control the power supply with the PS_ON# signals. A logic low on this line will turn the power supply on.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 system controller 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 the system controller from using peripheral slots. 853-041348-781The backplane connects the system slot to two PCI Express switches using a Gen-3 x8 and a Gen-3 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 Figure 1-3 for an overview of the NI PXIe-1085 Series architecture. System slot link 1 is a Gen-3 x8 PCI Express link to PCI Express switch 1, providing a nominal bandwidth of 8 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-3 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-3 x8 PCI Express link for advanced backplane configurations. 853-041348-781System slot link 2 is a Gen-3 x16 PCI Express link to PCI Express switch 2, providing a nominal bandwidth of 16 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-3 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 11-18.853-041348-781