NI CPCI-3840

Description

Technical Specifications:

• Processor: Intel Core i7-4700EQ (4 cores, base frequency 2.4 GHz, Turbo Boost up to 3.4 GHz)

• Memory: 8 GB DDR3 RAM (2×4 GB), expandable to 16 GB

• Storage: 128 GB SSD (SATA III), supports HDD up to 1 TB

• Form Factor: 3U CPCI – 100 mm × 160 mm × 21 mm

• Power: +5V @ 8A (from CPCI backplane); no external power supply required

• Operating Temperature: -40°C to +70°C (operating); -55°C to +85°C (storage)

• Vibration: MIL-STD-810G Method 514.6 (10–2000 Hz, 10 G)

• Shock: MIL-STD-810G Method 516.6 (50 G, 11 ms)

• Operating Systems: Windows Embedded Standard 7, Linux Real-Time (NI LabVIEW Real-Time)

Functional Features:

• Communication Interfaces: 2× Gigabit Ethernet ports (RJ45) supporting IEEE 1588 PTP (Precision Time Protocol); 4× USB 3.0 ports (2 front panel, 2 rear); 2× serial ports RS-232/485 (DB9); PCI Express x4 expansion interface for NI C Series modules via NI PXIe-8370 adapter

• Analog Input: 32/64 channels; ranges ±10V, ±5V, ±2.5V; 16/24-bit resolution; sampling rates up to tens of MHz

• Digital I/O: Configurable lines for general-purpose I/O, counter, and timer functions

• Timers/Counters: Multiple channels for frequency measurement, pulse counting, and event timing

• Bus Interface: CPCI bus compliant with CPCI specifications

• Driver Support: NI-DAQmx driver; software support for LabVIEW and LabWindows/CVI

Performance Parameters:

• Handles complex computing and data processing tasks for high-load applications such as real-time data analysis and signal processing

• Fanless design eliminates dust clogging during 24/7 operation

• ECC RAM with soldered storage prevents SSD dislodgement under high shock conditions; survives 50G shocks during aerospace validation testing

Material Composition: Industrial-grade components with conformal coating options for enhanced environmental protection.

Structural Features: 3U CPCI form factor with front panel I/O connectivity. Fanless thermal management design for passive cooling.

Working Principle: The CPCI-3840 operates as an embedded computing platform within a CompactPCI chassis, executing real-time control algorithms, acquiring data from connected I/O modules, and communicating with external systems via its multiple networking and serial interfaces. The NI-DAQmx driver ecosystem enables seamless integration with NI’s measurement and automation hardware.

Advantages and Highlights:

• True PXI Express hybrid compatibility allows operation in legacy CPCI chassis while communicating with newer PXI modules

• 4 isolated Gigabit Ethernet ports enable one port per instrument without switch infrastructure

• Fanless Intel Core i7 processing prevents thermal throttling during intensive LabVIEW Real-Time operations

• All ports survive 2000V surge protection

• Certifications: CE, UL, ATEX Zone 2, MIL-STD-810G, IEC 61010-1

Applicable Industries:

• Industrial Automation (process control, machine vision, motion control)

• Test and Measurement (vibration testing, acoustic measurement, data logging)

• Data Acquisition (environmental monitoring, biomedical measurement, physics experiments)

• Aerospace and Defense

• Automotive and Energy sectors

Model Series: NI CompactPCI Controller Series

Installation Requirements:

• Installs into any standard 3U CPCI slot

• Requires clean +5V backplane power with <5% ripple

• Ambient temperature must be maintained below 50°C with adequate cabinet ventilation

• Panel mount or DIN rail mounting supported depending on chassis configuration

Usage Precautions:

• Avoid daisy-chaining power from noisy motor drives

• Wipe vents quarterly with alcohol swabs; no calibration required

• Firmware updates recommended every 6 months to prevent timing anomalies

• Use a UL Listed ITE power supply marked LPS with the system