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AEI Information Library

AAR AEI Requirements for Hardware

What does the AAR say are the minimum requirements for AEI hardware to support the industry standards?

Customers & Contacts

Who should you know and how to contact them?

Common Railroad Terms

Speak the lingo.

AEI Site Components

What are the basic components of an AEI system and how do they weather?


S-918, S-918A

AAR Manual of Standards and Recommended Practices
Railway Electronics
Standard for Automatic Equipment Idnetification

Available through the AAR and TTCI in print, CD or electronically.
Contact TTCI Pueblo, CO

News and Articles

Stay up to date with the most recent ATBD and Industry news and information.


View informational photo galleries.

Brochures & Presentations

Access our informational brochures and company presentations.


Access copies of our equipment manuals.