Completing communications testing of the Rev A Isolated RS485 Building Block Board and planning a revised eFuse-based input protection circuit for Rev B.

Initial testing of the Rev A Isolated RS485 Building Block Board, including its isolated power supply, reverse-polarity protection, overvoltage protection and RS485 driver outputs.

Designing an isolated RS485 building block board with isolated power, input protection, configurable termination and biasing, and separate logic-side and bus-side grounds.

Final testing of the RS485 breakout with 48 V passthrough building block board, including higher-speed RS485 communication tests over approximately 20 metres of Cat 6 cable.

Reflecting on the first RS485 breakout with 48 V passthrough board and why the next revision may split RS485 communication and 48 V distribution into separate building block boards.