Case study

OPUS-QUAD Pro DJ Link Reverse Engineer Packet Analysis: mapping device traffic

OPUS-QUAD Pro DJ Link Reverse Engineer Packet Analysis documents how the Pioneer DJ OPUS-QUAD exchanges Pro DJ Link packets. It describes UDP announcements on port 50000, status traffic and metadata requests on port 50002, alongside a Node.js example that relays status packets to a WebSocket server.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-08

Stars: 19
Last commit: 2025-05-10
Language: JavaScript
License (GitHub): MIT

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: Node.js and npm for the example script.
Prerequisites: An OPUS-QUAD on the network, plus the host interface IP address and MAC address for the example script.
Limits: The author reports that the observed status packets omit some values, including the USB slot number and looping status.
License: The LICENSE file contains MIT terms; package.json declares ISC.

Cite

BibTeX

@misc{opus-quad-pro-dj-link-analysis-case,
  title = {{OPUS-QUAD Pro DJ Link Reverse Engineer Packet Analysis: mapping device traffic}},
  howpublished = {\url{https://github.com/kyleawayan/opus-quad-pro-dj-link-analysis}},
  url = {https://github.com/kyleawayan/opus-quad-pro-dj-link-analysis},
  urldate = {2026-11-08},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/opus-quad-pro-dj-link-analysis-case/}}
}

Plain text

OPUS-QUAD Pro DJ Link Reverse Engineer Packet Analysis: mapping device traffic. https://github.com/kyleawayan/opus-quad-pro-dj-link-analysis (accessed 2026-11-08). Awesome REA entry: https://awesomerea.org/resources/opus-quad-pro-dj-link-analysis-case/

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Primary sources

README.md GitHub · kyleawayan/opus-quad-pro-dj-link-analysis · Revision d7459fd