Product Core Brief
- Model: PCIe-1427
- Brand: National Instruments (NI)
- Series: NI Vision Acquisition (IMAQ)
- Core Function: Acquires high-resolution digital images from Base configuration Camera Link cameras for machine vision and scientific applications.
- Product Type: Camera Link Frame Grabber
- Key Specs: PCIe x1 Link | Base Configuration | 4 Ext. Trigger I/O | 15-pin D-Sub
- Condition: New Original (New Surplus)
Product Introduction
NI PCIe-1427 is a cost-effective, PCI Express image acquisition device designed for straightforward integration with Base configuration Camera Link cameras. This single-lane PCIe x1 frame grabber simplifies wiring for high-resolution digital imaging, featuring a 15-pin D-Sub connector for external triggering and system integration.
Unlike higher-tier grabbers, the PCIe-1427 is strictly limited to Base configuration Camera Link standards. It relies on the NI-IMAQ driver software and camera files (.icd) to properly recognize image formats and configure the hardware. It is widely utilized in automated inspection and scientific imaging where ease of setup and reliable image streaming are paramount.

NI PCIE-1427
Key Technical Specifications
| Parameter | Value |
|---|---|
| Bus Interface | PCI Express (x1, x4, x8, x16 compatible) |
| Camera Interface | Camera Link (Base Configuration Only) |
| Max Data Bits (Base) | 24 bits per clock cycle |
| Max Pixel Depth | 16 bits (Single Tap) |
| External Trigger I/O | 4 Lines (via 15-pin D-Sub) |
| Operating Temperature | 0 °C to 55 °C |
| Dimensions | 11.1 cm × 16.8 cm |
| Driver Software | NI-IMAQ / NI Vision Acquisition Software |
| Form Factor | PCIe Card |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: We trace source serial numbers against factory records. Visual inspection checks for PCIe gold finger wear and MDR-26 / D-Sub connector integrity.
- Live Functional Test: Power-on self-check runs first. We verify NI MAX enumeration and run continuous image acquisition tests >24 hrs with temp logging.
- Electrical Parameter Test: Insulation resistance gets tested at 500 V Megger (>10 MΩ required). Ground continuity and PCIe link stability are verified.
- Calibration/Config Verification: Read and record firmware status. Verify that the correct Camera Link Base configuration file (.icd) is loaded in NI MAX.
- Final QC & Packaging: Seal in anti-static bag. Apply QC Passed label with test date and engineer initials.
Replacement Pitfall Guide
❗ Configuration Limitations: This card ONLY supports Base configuration. It cannot handle Medium, Full, or Deca Camera Link configurations. Attempting to use it with incompatible cameras will fail.
❗ Data Bit/Tap Confusion: While the Camera Link Base port has 24 data bits, the PCIe-1427 is strictly limited to a maximum pixel depth of 16 bits. It cannot process non-standard configurations like 2-Tap 10-bit (20 bits) or Monochrome 3-Tap 8-bit.
❗ Trigger Routing Restrictions: The PCIe-1427 triggers on either rising OR falling edges, not both simultaneously. Complex hardware triggering (e.g., optical choppers) requires configuring the internal Pulse Generator and routing it via Digital I/O in NI MAX.
❗ RTSI Trigger Routing: While the card supports RTSI triggering (e.g., from a DAQmx device), RTSI lines cannot be routed directly to the Camera Link CC pins. Triggers must be configured internally via software.
❗ ESD Damage: Use anti-static mat and wrist strap. Dry environments increase failure risk during handling.
Keep these in mind and you’ll cut 90% of rework time.

NI PCIE-1427
Compatibility Matrix & Benchmarks
- PCIe-1427 → PCIe-1429 : Needs Adaptation — PCIe-1429 supports Medium/Full configurations
- PCIe-1427 → PCIe-1433 : Needs Adaptation — PCIe-1433 supports 2-Tap 10-bit and higher bandwidths
- PCIe-1427 → PCI-1422 : Incompatible — Legacy PCI bus, not PCIe
Benchmarks:
- Scan Cycle: Hardware-timed (Dependent on Camera Link Base max bandwidth)
- Comms Throughput: PCIe x1 (Direct Memory Access / DMA)






