en

Products

Field network testing

New Optical Wave Expert - DWDM Channel Checker and OTDR

Lab and manufacturing testing

MOA-3800 - variable optical attenuator

Service assurance

Neptune Intelligent - Virtual Passive Probe

Solutions

Communications service providers

Contractors

Academic and research institutions

Cable MSO (multiple system operator)

Network equipment manufacturers

Webscale companies and data centers

Government

System integrators

Services

Training

Featured Introduction to testing with OTDRs

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

Legal documentation

Blog

Photonics Integrated Circuits: a hot topic at ECOC 2019! By EXFO | October 2019
How to test MPO connectors for top performance By Guillaume Lavallée | July 2019
Collaboration, culture and people: the keys to unlocking intelligent operations in a 5G world By Jo Hicks | July 2019
View all

Webinars

Alternate Text

Register now

Christian Till | October 30, 2019 - 4 PM GMT + 1

FTTH webinar series: Automation processes - Part 2 (Webinar in German)

Alternate Text

Register now

Christian Till | November 13, 2019 - 4 PM GMT + 1

FTTH webinar series: Troubleshooting- Part 3 (Webinar in German)

Alternate Text

Yvon Rouault | October 1, 2019

The 5G revolution: fixed wireless, broadband, and the home network

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

EXFO and Zain unlock the value of network data to boost CX and revenues

Alternate Text

Hawaiki ushers in a new era of digital communications in the Pacific

Alternate Text

Certifying 5G equipment vendors

View all

Transformations

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
Service assurance
Solutions
Communications service providers
Wireline
Wireless
Service assurance
Contractors
Managed services, installation and maintenance
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
System integrators
Support
Services
Training
Field network testing
Lab and manufacturing testing
Service assurance
How to buy
Resources
Technical documentation
Promotional documentation
Legal documentation
Videos
Transformations
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.

Unshielded Twisted Pair (UTP)

Return to glossary

Twisted pair cabling that includes no shielding. UTP most often refers to the 100 Ω, Category 3, 4, and 5 cables specified in the TIA/EIA 568-A standard.