en
  • EN

Products

Field network testing

New MaxTester 730D - PON/metro OTDR

Lab and manufacturing testing

LTB-12 - rackmount modular mainframe

Adaptive service assurance platform

Solutions

Academic and research institutions

Adaptive service assurance solutions

Cable MSOs (multiple system operators)

Communications service providers

Contractors

Government

Network equipment manufacturers

Technologies

Webscale companies and data centers

Services

Training

Featured OTDR/iOLM Testing

Field network testing

Brochures and catalogs Be-an-Expert Training Catalog

Lab and manufacturing testing

Brochures and catalogs Be-an-Expert Training Catalog

Service assurance

Brochures and catalogs EXFO Astellia Training Courses

Resources

Technical documentation

Promotional documentation

Solution briefs

Legal documentation

Blog

remote fiber test and monitoring
Maximizing efficiency and reliability: leveraging RFTM for utilities and infrastructure providers By Romain Tursi | September 2023
timing and synchronization testing
Warum Over-the-Air-Timing- und Synchronisationstests für 5G-TDD-Netze entscheidend sind (German version) By EXFO | August 2023
6 ways to improve your broadband access deployments By Vincent Racine | August 2023
View all

Webinars

Register now

How to efficiently identify and mitigate external PIM: a webinar featuring ConcealFab, Kaelus and EXFO

Danny Sleiman

5G transformation Technologies
October 5, 2023

Watch now

Overcoming testing challenges in the Fibre Channel ecosystem

Anabel Alarcon

August, 2023

Best practices Technologies

Watch now

Unleashing the power of 64G Fibre Channel

Anabel Alarcon

August, 2023

Best practices Technologies
View all

Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9

Videos

Success stories

Alternate Text

Fast, effective, ambitious

Alternate Text

EXFO equipment helps provide the best network in the Kassel region in Germany

Alternate Text

CSP offers premium network services backed by topology-aware transport assurance

View all

Transformations

  • EN
Corporate
Careers
Partners
Suppliers
Products
Field network testing
Lab and manufacturing testing
Adaptive service assurance platform
Solutions
Academic and research institutions
Adaptive service assurance solutions
Cable MSOs (multiple system operators)
Service assurance
Wireline
Communications service providers
Service assurance
Wireless
Wireline
Contractors
Managed services, installation and maintenance
Government
Network equipment manufacturers
Technologies
Webscale companies and data centers
Support
Services
Training
Field network testing
Lab and manufacturing testing
Service assurance
How to buy
Resources
Technical documentation
Promotional documentation
Solution briefs
Legal documentation
Videos
Transformations
Contact

Glossary

Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business.

Discrete Multitone Transmission (DMT)

Return to glossary

A method of transmitting data on copper phone wires that divides the available frequency range into subchannels or tones. ADSL uses the DMT line coding, which divides the frequency from 0 to 1.104 MHz in 256 subchannels.

Let's stay in touch!

Get the latest network test, monitoring and analytics news!

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Thank you.