ConnectCore 9 compatibility guide

The ConnectCore 93 and the ConnectCore 91 system-on-modules share a common SMTPlus 45x40 form factor. This means that several interfaces are pin-to-pin compatible, enabling you to make a single mother board work for the ConnectCore 9 series of Digi products. Choosing a product with a common form factor enables you to choose a path toward optimized costs, maximum design longevity, and future compatibility without compromising your ability to optimize the board design. You can also leverage common code bases, documentation, and in-house knowledge as your product scales through the product family.

This document serves as a guide for creating a design compatible across SOMs that share the common SMTPlus 45x40 footprint. It provides proven methodology and best practices for creating a compatible design without incurring additional carrier board modifications.