The M42de now features improved support for Embedded DisplayPort (eDP) with features like ALPM, AUX-less ALPM, PSR1 / PSR2, alternate scrambler seed, and Tx backlight control. It excels in fast link training across all VESA recommended eDP link rates, making it a top choice for testing both sources and panels. Additionally, the new 30-pin and 40-pin eDP adapters simplify the connection of eDP 1.5a source and sink devices to the M42de platforms, ensuring accuracy and convenience.
Source Link Layer Compliance
The DP source link layer compliance option is ideal for pre-testing HBR3 or UHBR-capable devices prior to submission to an Authorized Test Center. Pre-testing is considered a critical step in assuring a smooth certification process. The optional compliance test packages allow users to view detailed results and help pinpoint the cause of any failures. AUX channel traces are also saved during Link Layer testing to provide a reliable record of AUX transactions.
Sink Link Layer & EDID Compliance
The DP sink EDID/DisplayID and Link Layer compliance option fully supports DP 1.4 certification and a growing list of DP 2.1 tests. Covering dozens of test cases and hundreds of assertions, the link layer CTS package is foundational for any engineering verification test effort. With essential tests for critical functions including training, forward error correction (FEC), power management and multi-byte AUX transactions, this base package is the starting point for comprehensive test coverage.
LTTPR Source, Sink & Retimer Compliance
The quantumdata M42de provides automated, one-button testing of Link Training Tunable Phy Repeater (LTTPR) compliance. Now with specific tests for HBR3 and UHBR-capable DisplayPort source, sink and retimer devices, the M42de mimics real LTTPR network behaviors to verify that sources can properly configure and link train in both transparent and non-transparent modes. Simple pass/fail reports are automatically generated and detailed AUX logs are captured which are invaluable for understanding issues during clock data switch phase, equalization, or inter-lane alignment.
The qdPrime test suite provides a huge library of quantumdata proprietary tests designed to verify DisplayPort functionality and interoperability for both sources and sinks. This optional feature systematically tests different combinations of lane-width, link rate, timing, refresh-rate, color-space, and bit depth to ensure devices operate properly with the DisplayPort 2.1 ecosystem. Each individual test generates a pass/fail result with detailed logs to provide a repeatable snapshot of device interoperability.
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Using DisplayPort Passive Monitoring to Solve Real-World Interoperability Issues Teledyne LeCroy's T.A.P.4™ proprietary technology for full passive monitoring of DP protocol bus provides a non-intrusive tap to allow visibility to both Main Link and AUX Channel traffic for debug of interoperability issues between real DP 2.1 devices. | White Paper |
qdPrime: Comprehensive Automated Test Coverage for DisplayPort2.1 | White Paper |
qdPrime Automated Test Coverage: Getting started Teledyne LeCroy qdPrime test suite overview. | Application Note |
quantumdata eDP Adapters Datasheet | Datasheet |
Using quantumdata M42de to transmit a continuous test pattern This Technical Brief illustrates how the M42de can be used to characterize an active cable by using the Tx port to transmit various test patterns. | Application Note |
This comprehensive technical training will provide a detailed look at eDP protocol layer features, implementation, and testing details. See why eDP is rapidly displacing LVDS as the best technology for embedded display applications.
Join this webinar for a detailed training on Panel Replay mode for DisplayPort 2.1 and explore the latest power-saving features and protocol behaviors with a focus on testing and validating Panel Replay and its predecessor Power Self-Refresh 2 (PSR2) implementations.
Join this technical webinar for a complete briefing on the latest DisplayPort 2.1 compliance test specifications (CTS).
This webinar describes the capabilities of the Teledyne LeCroy Application Programming Interface (API) for controlling the quantumdata M42d/M41d and 980 series DisplayPort test instruments.
This webinar covers the operation of DisplayPort 2.0 Link Layer Protocols with LTTPR devices in a UHBR network and how to test LTTPR-capable devices for compliance.
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VPS User Guide | Product Manual |
Quick Start Guide | Product Manual |
ATP User Guide | Product Manual |
M42de Quick Start Guide | Product Manual |
M42d User Guide | Product Manual |
Dimensions and Weight | Height: 3.44 in. (8.74 cm) Width: 9.57 in. (24.30 cm) Depth: 10.94 in. (27.79 cm) |
Connector Type | HDMI Connector: Out/Tx HDMI Type A; Category 2. Used for connecting external display for Advanced Test Platform GUI |
Power Requirements | 100-240 VAC, 50-60 Hz, 200 Watts |
Data Rates Supported | 1.62, 2.7, 5.4 & 8.1Gb/s at 1, 2, 4 Lanes; 10, 13.5, 20Gb/s at 4 lanes |
Operating Temperature | 32 to 104 (F); 0 to 40 (C) |
Version | DP 2.1 |
Rack mountable | 2 RU mounts in 19 inch rack with mounting brackets (provided) |
Command Line Control | Ethernet (RJ-45) for external GUI and telnet. |
Memory | 8 GB |
Protocols Supported | DisplayPort, Display Stream Compression (DSC) with FEC, HDCP, MST |
The quantumdata eDP-to-DP Adapters utilize the I-PEX VS series connectors and allow connection of embedded DisplayPort 1.5a source and sink devices to the M42de analyzer / generator platform. Available in both a 30-pin and 40-pin configuration, the eDP Adapters connect directly to standard full-size DP receptacles on the M42de test platform (as shown). Supporting up to HBR3 link rates, the adapters also offer an integrated back-light channel and external DC power connector for driving the eDP panel.
