There is a constantly-evolving diagram of the Cat6 cabling in S20 here:
There is a constantly-evolving list of camera connections here:
https://docs.google.com/spreadsheets/d/1rTnVijkaE2pYRpQYCJFv1CYQAsr9d2I2Q_FhbWH_Yv0/edit?usp=sharing
Here is the wiring as of September 1, 2021.