# 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.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-08
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/kyleawayan/opus-quad-pro-dj-link-analysis>
- Primary source: <https://github.com/kyleawayan/opus-quad-pro-dj-link-analysis/blob/d7459fdc0884b704cdd5540b5bf5ab6d003c4ded/README.md>
- Catalog page: <https://awesomerea.org/resources/opus-quad-pro-dj-link-analysis-case/>
- Record JSON: <https://awesomerea.org/resources/opus-quad-pro-dj-link-analysis-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/opus-quad-pro-dj-link-analysis-case/index.md)

## 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.

## Primary sources

1. <https://github.com/kyleawayan/opus-quad-pro-dj-link-analysis/blob/d7459fdc0884b704cdd5540b5bf5ab6d003c4ded/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.