NI PXIe-1085 18-Slot (16 Hybrid Slots, 1 PXIe Timing Slot) PXI Chassis

The NI PXIe-1085 is an 18-slot PXI chassis purpose-built for high-performance test and measurement systems requiring flexible instrumentation architecture. Its all-hybrid backplane accommodates both PXI and PXI Express modules simultaneously, delivering either 12 GB/s or 24 GB/s maximum system bandwidth depending on configuration. The chassis provides 16 hybrid slots plus one dedicated PXIe timing slot, supporting up to 4 GB/s per peripheral slot with x8 Gen-2 PCI Express connectivity.

– Technical Specifications

Slot Configuration & Power
• 18 total slots: 16 hybrid slots, 1 PXIe timing slot, 1 system controller slot
• 38.25 W cooling capacity per peripheral slot
• 140 W maximum power dissipation in system slot
• 45 A maximum total system slot current

Backplane & Bandwidth
• All-hybrid backplane architecture
• 4 GB/s dedicated bandwidth per PXIe peripheral slot (x8 Gen-2)
• Two versions: 12 GB/s or 24 GB/s maximum system bandwidth

Timing & Synchronization
• Internal 10 MHz reference clock: ±25 ppm stability
• Internal 100 MHz reference clock (PXIe_SYNC100): ±25 ppm stability
• PXI trigger bus and star trigger support
• PXIe differential star triggers (DSTARA, DSTARB, DSTARC) supported

Power & Electrical
• Input: 100–240 V AC, 50/60 Hz nominal; operating range 90–264 V AC, 47–63 Hz
• Input current: 12 A–6 A; 15 A over-current protection
• DC outputs: +3.3 V, +5 V, +12 V, −12 V, 5 VAUX
• Maximum usable power: 791 W (12 GB/s), 775 W (24 GB/s)
• Typical efficiency: 70%

Interfaces & Connectivity
• Ethernet: 10 Mbps and 100 Mbps support
• 2 SMA connectors
• Remote power-inhibit control
• Rear-panel 8-pin connector for internal power supply control

Physical
• Dimensions: 6.97 × 18.30 × 19.38 inches (177.1 × 464.8 × 492.3 mm)
• Weight: 40.3 lb (18.28 kg)
• Optional rack mount kits for front or rear installation

– Key Features

• Hybrid backplane supports PXI, PXI Express, CompactPCI, and CompactPCI Express modules
• Dual-bandwidth configurations optimize cost and performance trade-offs
• Low-jitter reference clocks enable synchronized multi-module test systems
• Multiple trigger distribution options for complex triggering topologies
• Configurable via Measurement & Automation Explorer (MAX) using PXI Platform Services 3.0 or higher

– Compatibility & Integration

The chassis accepts PXI, PXI Express, CompactPCI, and CompactPCI Express instrumentation. System configuration and control operate through NI’s PXI Platform Services 3.0 or later software stack, enabling flexible test application development and deployment.