Final answer:
The IDEAA cabinet differs from existing FDHs used by TELUS through improved scalability, advanced cooling, and enhanced fiber management systems.
Step-by-step explanation:
The features that are unique to the IDEAA cabinet as compared to existing Fiber Distribution Hubs (FDHs) used by TELUS include innovations such as improved scalability, advanced cooling mechanisms, and enhanced fiber management systems. The IDEAA cabinet is designed to adapt more efficiently to increasing demands of network infrastructure, reflecting the evolution in fiber optic technology. Its distinctive features likely encompass modular design elements that allow for easier upgrades and expansions, a critical aspect for future-proofing telecommunications infrastructure.