Voyager M4120 USB4 Protocol Analyzer

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Full Support for Capturing USB4 120Gb/s Asymmetric and Symmetric Gen 4 (PAM3), Gen 3, Gen 2, plus legacy USB and Power Delivery

Capture / Analyze USB4 & USB 3.2 including PD (EPR up to 50V) and SBU traffic to see end-to-end host, hub, and device operation.

Asymmetric Link Capture And Analysis

Asymmetric Link Capture And Analysis

Easily visualize link negotiations and quickly identify Asymmetric operations
    Industry Standard Compliance Platform

    Industry Standard Compliance Platform

    The newest addition to the trusted Voyager family
      Instantly analyze native protocols

      Tunneled packets, exported

      Instantly analyze tunneled protocols in native environments

        Flexible Hardware

        The front-end of the Voyager analyzer features USB4 certified connectors that support the full 80Gb/s data rate for loss-less capture of traffic from all active links.

        Voyager M480x USB4 Protocol Analyzer Front Panel
        • Native USB Type-C ports capture USB4 (Gen2, Gen3, Gen4), Thunderbolt, USB 3.2, USB 2.0 plus Power Delivery (CC) and DP AUX (alt-mode).
        • Exerciser option supports USB 2.0, 3.2 and USB4 with USB4 Gen 4 exerciser available in a future release
        • DisplayPort Tunneling Exerciser (future option)
        • LEDs indicate link speed, link width and active mode
        • Trigger In/Out
        Voyager M480x USB4 Protocol Analyzer Back Panel
        • CATC Sync port for synchronized & multi-box (cascaded) recording
        • SuperSpeed 3.0 & GBe interface to host

        Complete USB Test Coverage

        The Voyager series remains the top protocol analysis choice for engineering teams. The M4120 adds full USB4 V2 power with Gen 4 120Gb/s Asymmetric Link rates to the arsenal without compromising on legacy speeds. Testing of USB4 Gen 3x2 (40Gb/s), USB 3.2 Gen 2x2 (20Gb/s), Gen 2x1 (10Gb/s), and USB 2.0 speeds are also fully supported, as well as Power Delivery (EPR up to 50V).

        Screen capture of usb analysis software
        Screen capture of usb analysis software
        Screen capture of usb analysis software

        Legendary Status - The CATC Trace is the industry’s de facto standard display for protocol analysis with powerful features that accelerate time to insight.

        • Identify protocol issues at a glance with clear packet labels and custom colors
        • Expand and collapse level views to combine related USB transfers
        • Show/Hide specific packet types with a single click

          Deep Link Insight – delivers a unified USB4 view that cuts through protocol complexity, exposing link behavior and routing activity with clarity that accelerates every stage of debug.

          • Track link behavior with clean visualization of state transitions
          • Quickly follow router-path configuration with the USB4 Operation View
          • Instantly spot Asymmetric Links with a clear highlighted “3Tx” indicator

            Seamlessly integrate workflows – unlock deeper clarity across every tunneled protocol with one-click export to Teledyne LeCroy’s advanced PCIe, USB, and Video protocol analysis suites.

            • Dive into richer, application-level detail with full decoding of encapsulated traffic
            • Follow PCIe, USB, and DisplayPort payloads in a clear, coherent view across the USB4 fabric
            • Jump into debug with Hop-IDs automatically assigned from SBU transactions

              HV optical probe testing GaN FET and measuring gate-drive signal and high voltage output

              Error Detection

              The Voyager M4120 highlights protocol violations at every layer— from CRC errors to framing and timing faults. Errors are flagged and annotated directly in the trace, giving you immediate insight into why a link failed and what needs to be corrected.

              HV optical probe testing GaN FET and measuring gate-drive signal and high voltage output

              Measure and verify VBUS and CC voltages with Power Tracker™

              The Voyager M4120 Power Tracker option monitors and displays vBus power and current graphically in a time-line format. The voltages are synchronized to trace events allowing users to verify power state transitions at the protocol and electrical layers. Separate power graphs are provided for CC and VCONN making it easy to debug logical Type-C state transitions.

              Resources

              Name

              Voyager M4120 Datasheet

              Datasheet
              Getting Started: USB4 80Gb/s Testing
              USB Protocol Suite: Power Tracker Overview

              Get on the fast-track with an insightful review of USB4 80Gb/s & Thunderbolt™ 5. This time-saving introduction will provide a concise review of the changes in the USB4 80Gb/s protocol.

              Name

              USB Protocol Suite User Manual

              Product Manual

              Asymmetric Mode Option

              USB4 Exerciser Option

              Power Tracker

              SimPASS USB

              Gen T Exerciser Option

              Asymmetric Mode Option

              Unlock full-rate USB4 v2 analysis with the Asymmetric Mode option for the Voyager M4120. This option enables capture and analysis of USB4 Asymmetric Link configurations, allowing one link partner to transmit at up to 120?Gb/s using three lanes. With Asymmetric Mode enabled, engineers gain clear visibility into asymmetric traffic behavior, making it possible to validate and debug products that rely on asymmetric operation to achieve maximum performance.

              USB4 Exerciser Option

              The exerciser adds a flexible traffic generation capability for USB4 80Gb/s and Thunderbolt™ 5 to the Voyager M480x platform. It allows users to transmit custom packets over standard USB Type-C cables with low-level control of headers, payloads, timing, and link states. Seamlessly integrated with the protocol analyzer, the M480x exerciser can emulate host or device router operations while recording the real response from the DUT. Leveraging the same proven architecture developed for SuperSpeed USB, the M480x exerciser adds Gen 4x2, Gen3x2 and Gen2x2 support allowing users to perform initial power-on, functional and compliance testing for next generation USB4-V2 chipsets.

              setup of voyager usb4 exerciser option

              Power Tracker

              The Voyager Power Tracker option monitors Vbus, CC and VCONN voltage/current and displays power levels graphically in a time line format. This power information is synchronized to the trace allowing users to verify power state transitions at the protocol and electrical layers. The Power Tracker continually samples voltage during normal operations. It includes markers and delta measurements with point and click ease. Required for running PD Compliance Suite, the Power Tracker is invaluable for validating VBUS, PD, Type-C and Vconn behaviors.

              Read more

              power tracker

              SimPASS USB

              SimPASS USB brings the powerful Teledyne LeCroy data traffic analysis capabilities commonly used for post-silicon testing to the simulation environment. Users of cutting edge simulation tools can now export and view test vectors directly in the Teledyne LeCroy USB trace viewer.

              usb simpass software

              SimPASS USB now supports USB4 40Gb/s and 80Gb/s simulation files. This allows vendors to generate RTL vector files (that describe USB I/O traffic in the pre-silicon phase) and then display and analyze these exchanges in the same way as hardware-derived trace files in the post-silicon phase. Viewing simulation files that illustrate potential flaws in data and transaction packets from the I/O stream, SimPASS enables developers to more completely test and debug the logic design before committing the design to silicon. Issues such as flaws in power state transitions, improper credit flow exchanges and marginal timing handshakes can be discovered, tracked to their source, and resolved, resulting in faster time-to-market and lower development costs for SoCs. During any redesign cycle, fixes for bugs (identified in the previous cycle) can be verified by re-testing the fixes during simulation using the SimPASS software.

              Gen T Exerciser Option

              The Teledyne LeCroy Gen T Exerciser option enables comprehensive functional and compliance testing, helping ensure reliable operation and faster performance for next-generation USB4 Gen T hosts and devices. When combined with the Voyager M4x or M480x Exerciser system, the Gen T option provides precise control of Gen T protocol transactions. This option is a requirement to gain access to the Gen T Compliance tests, which will be added in an upcoming USB4-CV tool from the USB Implementers Forum (USB-IF). There are currently 20 test cases fully aligned with the latest USB-IF specifications and designed to validate Gen T device enumeration, functionality and error recovery. Part#: USB-AC60-V08-A.

              Gen T Excerciser option

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