Signal & connector reference
Why two cables both rated “8 Ω”, or two ports both called “HDMI”, or two runs both called “Cat6”, can behave completely differently. This section is for looking something up — the tables, the version numbers, the pinouts. When you want to know why rather than which, the explainers have the same subjects at length, with the figures. Pick the question you actually have:
Data & networking fundamentals
The layer model as a table, so you can see where each thing indexed here sits and what that lets it do. Signalling rates for USB, Thunderbolt, PCIe and Ethernet. And where analogue and digital fail differently, department by department.
Transmission media & connectors
Which cable, which fibre, which wireless band — and what's actually on the end of the plug. Ethernet categories, fibre types, Wi-Fi/Bluetooth/Zigbee, RS-485 unit loads, and pinouts you can read at a glance.
Display & video signals
Version numbers, light engines, and what a virtual-production stack is actually assembled from. HDMI/DisplayPort generations, laser safety classes, how the four kinds of projector actually make colour, and where XR fits.
Open an issue — this material is hand-authored reference content rather than data pulled from the dataset, so corrections go straight to a pull request against the relevant page.