b-plus NETLion 10G Automotive Ethernet Protocol Signal Acquisition and Conversion Unit

Overview

The b-plus NETLion 10G is a high-fidelity automotive Ethernet protocol signal acquisition and conversion unit engineered for deterministic, low-latency monitoring and analysis of next-generation in-vehicle networks. It implements full-duplex TAP (Test Access Point) functionality compliant with IEEE 802.3ch (10BASE-T1S) and IEEE 802.3cg (2.5/5/10BASE-T1) physical layer standards, enabling non-intrusive, bit-accurate capture of automotive Ethernet traffic without altering network timing or topology. Designed for integration into validation benches, ECU development labs, and automated conformance test systems, the NETLion 10G supports real-time signal quality assessment—including jitter, eye diagram margin, return loss, and common-mode noise—via its embedded PHY-level diagnostic engine. Its dual-port architecture allows simultaneous monitoring of two independent 2.5/5/10GBASE-T1 links, with hardware-synchronized timestamping at sub-microsecond resolution to support precise causal analysis of time-sensitive communication events such as ADAS sensor fusion or OTA update sequencing.

Key Features

• Dual 10GBASE-T1 TAP ports with independent PHY-layer visibility and configurable master/slave operational states
• Hardware-accelerated signal integrity diagnostics: real-time eye diagram generation, jitter decomposition (TIE, RJ, DJ), and SNR estimation per lane
• IEEE 1722a-compliant AVB/TSN packet metadata extraction including stream ID, priority class, and time-aware scheduling tags
• On-device signal quality telemetry via RESTful API and standardized JSON schema for integration with CI/CD pipelines and test management systems
• Ruggedized aluminum enclosure rated IP54, qualified for operation across -40°C to +85°C ambient temperature per ISO 16750-4
• Galvanically isolated Ethernet interfaces with reinforced insulation per IEC 60664-1, supporting 2 kV surge immunity (IEC 61000-4-5)

Sample Compatibility & Compliance

The NETLion 10G is compatible with all automotive Ethernet implementations adhering to OPEN Alliance TC15 specifications, including but not limited to BroadR-Reach® derivatives and IEEE 802.3bw/802.3bp/802.3ch/802.3cg PHYs. It supports both point-to-point and multidrop topologies (e.g., 10BASE-T1S) and maintains electrical compliance with ISO 11452-4 (bulk current injection), ISO 10605 (ESD), and CISPR 25 Class 5 radiated emissions limits. All firmware and diagnostic algorithms are developed under ASPICE Level 2 processes and documented per ISO 26262-6:2018 requirements for tool qualification (TCL2). The device meets GLP audit readiness criteria for traceable calibration records and firmware version control logs.

Software & Data Management

The NETLion 10G operates with b-plus’s NETControl Suite v4.2+, a cross-platform application providing configuration, live signal visualization, and automated compliance reporting. Data export follows ASAM MDF4 v4.2.0 format with embedded channel grouping, measurement units, and physical scaling definitions. For regulated environments, the suite supports FDA 21 CFR Part 11-compliant electronic signatures, audit trail logging (including user actions, parameter changes, and firmware updates), and role-based access control (RBAC). Raw binary captures can be streamed directly to third-party tools such as Vector CANoe.Automation, Keysight PathWave, or MATLAB/Simulink via TCP/IP socket interface with zero-copy memory mapping for deterministic throughput.

Applications

• Pre-certification validation of AUTOSAR Adaptive Platform Ethernet stacks against ISO 21434 cybersecurity requirements
• Root-cause analysis of intermittent communication failures in zonal E/E architectures
• Conformance testing of Time-Sensitive Networking (TSN) features including IEEE 802.1Qbv time-aware shapers and 802.1AS-2020 grandmaster synchronization
• Signal integrity benchmarking during harness design iteration (e.g., crosstalk vs. cable length studies)
• Integration into automated HIL test rigs for closed-loop verification of gateway routing logic and VLAN segmentation policies

FAQ

Does the NETLion 10G support passive TAP mode only, or can it operate as an active bridge?

The NETLion 10G operates exclusively in passive TAP mode; it does not forward, modify, or regenerate Ethernet frames. Its PHY layer remains electrically isolated from the monitored link to ensure zero impact on network determinism.

Is firmware update capability available over-the-air (OTA)?

Firmware updates require authenticated local USB connection and are subject to cryptographic signature verification using ECDSA-P384. Remote updates are intentionally disabled to comply with ISO/SAE 21434 threat analysis for remote attack surfaces.

What timestamping accuracy is guaranteed under varying temperature conditions?

Timestamp resolution is 1 ns with ±25 ns absolute accuracy over the full operating temperature range (-40°C to +85°C), verified per IEEE 1588-2019 Annex D calibration procedures.

Can the device decode higher-layer protocols such as SOME/IP or DoIP?

No. The NETLion 10G performs physical and data-link layer (IEEE 802.3) analysis only. Application-layer decoding must be performed externally using standard PCAP files exported from the device.

Is calibration documentation provided with each unit?

Yes. Each shipped unit includes a NIST-traceable calibration certificate covering differential impedance (100 Ω ±2%), common-mode rejection ratio (≥60 dB @ 100 MHz), and timing skew (<10 ps between lanes), valid for 24 months.