PXIe-8522

Земля PXIe-8522 является 4-port 1000BASE-T1 Automotive Ethernet PXI Express interface module от Национальные инструменты, designed for ECU communication testing, automotive network validation, and time-sensitive networking applications. It is based on the NI-XNET architecture, providing hardware-timed communication with deterministic synchronization and high-precision timestamping.

This module is optimized for in-vehicle Ethernet validation systems, supporting deterministic communication, multi-endpoint configurations, and IEEE 802.1AS time synchronization.

Key Features of PXIe-8522

Земля NI PXIe-8522 provides:

• 4× 1000BASE-T1 Automotive Ethernet ports
• Support for up to 4 independent endpoints per module
• Configurable TAP (Terminal Access Point) mode
• Hardware-based frame timestamping
• IEEE 802.1AS time synchronization support
• Multiple ECU communication roles (master/slave simulation)

Each port can be independently configured for ECU simulation, monitoring, or network analysis.

Automotive Ethernet and Time Synchronization

The PXIe-8522 is designed for automotive-grade Ethernet over single twisted pair (1000BASE-T1), давая возможность:

• ECU communication validation
• In-vehicle network simulation
• Time-Sensitive Networking (TSN) testing
• Deterministic frame timestamping per packet

It supports IEEE 802.1AS precision time protocol, enabling sub-microsecond synchronization across PXI systems.

PXI Express System Integration

The module integrates into the PXI Express ecosystem with:

• PCIe-based high-bandwidth backplane communication
• Shared 10 MHz reference clock distribution
• PXI trigger bus synchronization (PXI_Trig lines)
• Multi-module deterministic test execution

This enables the PXIe-8522 to function as part of a synchronized automotive test bench with analog, digital, and RF instruments.

Поддержка программного обеспечения

The PXIe-8522 works with:

• NI-XNET driver
• NI LabVIEW
• NI TestStand
• C/C++ and LabWindows/CVI environments

It supports ECU simulation, automated test execution, and real-time network analysis workflows.

Типичные применения

Земля PXIe-8522 широко используется в:

• Automotive ECU validation and verification
• In-vehicle Ethernet network simulation
• ADAS communication testing
• Automotive TSN (Time-Sensitive Networking) development
• Powertrain and body control module testing
• Automotive production test systems
• Embedded vehicle network diagnostics

System Context

As a PXI Express module, the PXIe-8522 operates within a chassis that provides:

• High-speed PCIe backplane bandwidth
• Shared timing and trigger infrastructure
• Deterministic multi-instrument synchronization
• Scalable modular test architecture

This makes it suitable for large-scale automotive ATE systems.

Резюме

Земля NI PXIe-8522 является 4-port 1000BASE-T1 Automotive Ethernet PXI module designed for deterministic ECU testing and automotive network validation. With hardware timestamping, IEEE 802.1AS synchronization, and NI-XNET integration, it is widely used in modern automotive communication test systems.