en

Products

Field network testing

Featured TestFlow - field test management solution

Lab and manufacturing testing

New MOA-3800 - variable optical attenuator

Monitoring and assurance

EXFO Verifier Agent (EVA) - Network visibility solution

Solutions

Communications service providers

Contractors

Academic and research institutions

Cable MSO (multiple system operator)

Network equipment manufacturers

Webscale companies and data centers

Government

Resources

Technical documentation

Promotional documentation

Legal documentation

Blog

Assuring 5G: operators should take a four-pronged approach to automated assurance By EXFO | March 2019
The role of test orchestration in service lifecycle orchestration By Ihab Mahna | March 2019
On the road to 5G: upgrading the transport network By EXFO | February 2019
View all

Webinars

Alternate Text

Register now

Ken Gold | March 20, 2019 - 11:00 a.m. EDT / 4:00 p.m. GMT / 8:00 a.m. PDT

Orchestrating service assurance for 5G FWA service rollout and operations

Alternate Text

Register now

Sébastien Prieur | March 21, 2019 - 11:00 a.m. EDT / 4:00 p.m. GMT / 8:00 a.m. PDT

What’s in store for 5G transport networks: A look ahead into emerging technologies and new use cases - Part 1

Alternate Text

Register now

Dr. Konstantinos Stavropoulos | March 27, 2019 - 11:00 a.m. EDT / 3:00 p.m. GMT / 8:00 a.m. PDT

Making the most of a limited resource: how to use spectrum more efficiently in the era of 5G

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

To add favorites to a list, you must be logged in to your account.

Login Register

Corporate
Investors
Careers
Partners
Suppliers
Products
Field network testing
Lab and manufacturing testing
Monitoring and assurance
Solutions
Communications service providers
Wireline
Wireless
Service assurance
Contractors
Managed services, installation and maintenance
System integrators
Academic and research institutions
Cable MSO (multiple system operator)
Wireline
Service assurance
Network equipment manufacturers
Physical layer and network protocol testing
Wireless lab emulation and testing
Webscale companies and data centers
Physical layer and network protocol testing
Network optimization
Government
Transformations
Support
How to buy
Resources
Technical documentation
Promotional documentation
Legal documentation
Videos
Contact
English

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.

Loss Budget

Return to glossary

The total calculated power loss in an optical link or span. Calculation is derived from the sum of all losses including fiber attenuation, splices, components and connections plus a margin of error. Measured in total dB.