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Chapter 1
Getting Started
System Controller Slot
The system controller slot is Slot 1 of the chassis and is a 4-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.
The backplane routes three of the system slot’s x4 PCI Express (PCIe) links to a PCIe switch.
The three PCIe switches have x4 PCIe links routed to each peripheral slot as well as a x1 link to
a PCIe-to-PCI bridge providing a 32-bit/33 MHz PCI bus to the hybrid slots. Slot 2 directly
connects to the remaining link of the system slot. Refer to Figure 1-3 for the connectivity of PCIe
and PCI.
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.
Note
The Inhibit Mode switch on the rear of the chassis must be in the
Default
position for the system controller to have control of the power supply. Refer to the
section of Chapter 2,
Installation and Configuration
, for details
about the Inhibit Mode switch.
Hybrid Peripheral Slots
The chassis provides four hybrid peripheral slots as defined by the
PXI-5 PXI Express Hardware
Specification
: slots 5 through 8. A hybrid peripheral slot can accept the following peripheral
modules:
•
A PXI Express Peripheral with x4 or x1 PCI Express link to the system slot
•
A CompactPCI Express Type-2 Peripheral with x4 or x1 PCI Express link to the system slot
•
A hybrid-compatible PXI Peripheral module that has been modified by replacing the J2
connector with an XJ4 connector installed in the upper eight rows of J2. Refer to the
PXI Express Specification
for details. The PXI Peripheral communicates through the
backplane’s 32-bit PCI bus.
•
A CompactPCI 32-bit peripheral on the backplane’s 32-bit PCI bus
The hybrid peripheral slots provide full PXI Express functionality and 32-bit PXI functionality
except for PXI Local Bus. The hybrid peripheral slot only connects to PXI Local Bus 6 left and
right.
PXI Express Peripheral Slots
There are two PXI Express peripheral slots: slot 2 and slot 3. PXI Express peripheral slots accept
the following modules:
•
A PXI Express Peripheral with x4 or x1 PCI Express link to the system slot
•
A CompactPCI Express Type-2 Peripheral with x4 or x1 PCI Express link to the system slot
