The NI PXIe-1078 is a 9-slot PXI Express chassis built for high-performance test and measurement systems. It delivers up to 1.75 GB/s system bandwidth and supports both PXI Express modules and standard PXI hybrid-compatible modules, enabling flexible instrumentation configurations. The chassis features a PCI Express backplane architecture with three x1 PCIe links routed from the system slot and hybrid peripheral slots that accept both PXIe and PXI modules. Compliant with PXI timing and synchronization standards, it includes a 10 MHz system reference clock (±25 ppm accuracy, 500 ps max slot-to-slot skew) and a 100 MHz differential system clock (±25 ppm accuracy, 100 ps max slot-to-slot skew). The chassis delivers 300 W maximum total usable power (derating to 288 W at 40–50 °C ambient), with 125 W maximum on combined +3.3 V and +5 V rails (derating to 100 W at elevated temperatures) and up to 16.5 A available from the +12 V supply. Its compact form factor suits deployment in standard racks and space-constrained environments.
Technical Specifications
Chassis Configuration
• 9-slot PXI Express chassis
• 1 system controller slot (4-slot wide)
• 3 PXI Express peripheral slots
• 5 PXI hybrid peripheral slots (accept PXIe modules or standard PXI modules)
System Bandwidth
• Up to 1.75 GB/s
Backplane
• PCI Express connection to every slot
• Three x1 PCIe links from system slot to peripheral slots
• PCIe to PCI translation bridge included
Timing & Synchronization
• 10 MHz System Reference Clock (PXI_CLK10): ±25 ppm max accuracy, 500 ps max slot-to-slot skew
• 100 MHz System Reference Clock (PXIe_CLK100 and PXIe_SYNC100): ±25 ppm max accuracy, 100 ps max slot-to-slot skew
• PXI trigger bus, star trigger bus, slot-to-slot local bus, 100 MHz differential system clock
Power Supply
• Input: 100–240 VAC, 47–63 Hz
• Maximum Total Power: 300 W (derates to 288 W at 40–50 °C)
• +3.3 V / +5 V Combined Maximum: 125 W (derates to 100 W at 40–50 °C)
• +12 V Maximum: Derates linearly to 16.5 A from 40–50 °C ambient
• –12 V Regulation: ±5% for loads ≤ 8 A
– Key Features
• Accepts PXI Express modules in all nine slots
• Hybrid slot support for standard PXI and PXI Express modules
• PXI timing and synchronization standards compliance
• Dual reference clock architecture (10 MHz and 100 MHz)
• Compatible with CompactPCI Express and standard CompactPCI peripherals
– Typical Applications
• Multi-module test systems requiring high-speed data throughput
• Synchronized measurement and stimulus applications
• Defense, aerospace, and automotive test environments
• Systems integrating legacy PXI modules with modern PXI Express instrumentation
– Compatibility & Integration
The PXIe-1078 accepts PXI Express compatible modules, CompactPCI Express compatible 4-link system controllers and Type-2 peripherals, PXI hybrid-compatible modules, and standard CompactPCI peripherals.
