HIDE EVENTS
Harding at Nepa 2026

The next show will be ACA (American Correctional Association) Booth Number: 333 Dates: July 30 – Aug 2

Learn More

SHOW EVENTS

Everything You Need to Specify, Install, and Support.

Manuals, drawings, certifications, and terms and conditions for every Harding product. All in one place.
Browse the Documentation
Can't find what you need?

Manufacturer-Direct. Always Current.

Harding provides the complete technical documentation library for the MicroComm DXL intercom system and the Advanced fire alarm product line. Every document comes directly from the manufacturer. No third-party interpretations, no outdated versions from a distributor’s filing cabinet.
Contact Technical Support

What You Will Find Here.

Technical Reference

Product Manuals

Specification manuals, technical manuals, AutoCAD drawings, block diagrams, and system descriptions for the MicroComm DXL and Advanced fire alarm product lines.

What is inside:

MicroComm DXL: Specification Manual, Technical Manual, AutoCAD Drawings, Block Diagram, System Description, Compatibility Specifications, Brochure Advanced Fire: UL and ULC Panel Documentation, Detectors and Modules, Bases, Brochures
View Product Manuals
Legal Documentation

Product Terms and Conditions

Terms and conditions documents for the MicroComm DXI/DXL intercom product line and the Advanced and FxIP fire alarm product lines.

What is inside:

DXI/DXL Terms and Conditions, Advanced Fire Product Terms and Conditions, FxIP Terms and Conditions
View Terms and Conditions
Verified Compliance

Certifications and Standards

Compliance certifications, regulatory standards documentation, and TAA and NDAA compliance records for Harding products. Essential for federal, government-funded, and regulated facility projects.

What is inside:

TAA Compliance, NDAA Compliance, UL Listings, ULC Certifications, Product Compliance Certificates
View Certifications and Standards

Can't Find What You Need?

Our technical support team has direct access to the full Harding documentation archive, including legacy DXI and FxIP documentation for systems going back decades. If a document is not listed in the library, call us. It likely exists and we can get it to you.
Talk to a Specialist
Technical Support Hub

Supporting Legacy Systems Too.

Harding maintains full technical documentation for the MicroComm DXI, legacy MicroComm DXL, FxIP fire products, and Advanced 9th Edition fire systems. If you are supporting an older installation, the documentation and parts you need are available.
0 +

North American Manufacturing​

UP TO

0 +

Year System Design Lifespan

0 K+

deployed systems in North America​

Need Technical Support on an Active Project?

Our team is available for phone support, document requests, and commissioning assistance throughout your project.
Harding Technologies is an equal opportunity employer. We thank all applicants for their interest. Only candidates selected for an interview will be contacted.

Want to Know If We Are the Right Fit for Your Project?

Talk to our team. We have been doing this for 50 years and we are happy to answer any question about our products, our process, or our history.
Harding Technologies is an equal opportunity employer. We thank all applicants for their interest. Only candidates selected for an interview will be contacted.