Agilent/Keysight AP04E0A

The Keysight AP04E0A is a discontinued vehicle network interface module engineered for multi-protocol automotive test and measurement applications. It has simultaneous access to CAN FD, CAN 2.0, LIN, and Ethernet networks with full galvanic isolation from the host PC, enabling reliable data acquisition in manufacturing, R&D, and quality assurance environments. The module delivers nanosecond-precision timestamping and hardware-accelerated protocol support for high-speed ECU flashing and diagnostic operations.

Technical Specifications

• Network Interfaces: Two CAN FD channels, one LIN channel, one Ethernet channel


• CAN FD Data Rate: 100% utilization at 8 Mb/s per channel


• Timestamping: 64-bit resolution with 25 nanosecond accuracy


• Isolation: Full galvanic isolation between module and PC


• Environmental Hardening: Rated for reverse battery conditions and electrical transients


• Protocol Implementation: ISO 15765 (CAN FD hardware acceleration), Diagnostic over IP (DoIP)


• Connectivity: DB26 (1 m), OBD2 (1.5 m), multi-connector (1 m) cable assemblies

Key Features

• Dual high-bandwidth CAN FD networks eliminate single-channel bottlenecks in complex vehicle testing scenarios


• PC isolation mitigates ground loops and EMI coupling in harsh automotive environments


• Hardware-based ISO 15765 implementation accelerates ECU reprogramming workflows


• Native DoIP support enables modern vehicle diagnostic protocols


• 25 ns timestamping resolution supports precise event correlation across multiple bus domains

Typical Applications

• Multi-protocol vehicle network analysis and packet capture


• ECU firmware flashing and calibration


• Powertrain and body electronics diagnostics


• CAN/LIN/Ethernet integration validation in automotive platforms


• Manufacturing test automation and quality control

Compatibility & Integration

• Software: AP00000A Vehicle Spy


• APIs: neoVI DLL, SAE J2534, TMC RP1210 A/B


• Protocols: CAN FD, CAN 2.0, LIN, Ethernet, ISO 15765, DoIP