(800) 473-4237 / 508-992-6464 sales@focenter.com

QUESTION:

What happens if there are dust particles on one of the connector end faces during the connector mating process?

 

ANSWER:

Mating connectors with dust will embed the debris into the ferrule end face causing permanent scratches and pits. The way to calculate contact pressure (P) is to divide the normal force divided by the surface area or simply P=F/A.

If we assume a connector has mating force of 3kg (6.6 lbs) and that the contact area of the two mated connectors is 200µm (0.00787 inches), the contact force between of the mated connector pair in the contact zone is 147N/m2 (21 psi). This is enough pressure between the two mated ferrules to embed the dust particles into the ferrule end faces creating scratches and pit marks in the glass of the fibre as well as on the surfaces of the zirconia ceramic of a single fiber ferrule and polymer composite materials used for MT ferrules. Scratches and pits located in the contact will have a negative impact of the signal performance and spike the inspection losses and disrupt back reflectance for angles polished connectors.

 

  Answered by AskFOC Technical Team WITH the Sticklers MicroCare Corporation Team July 18, 2017

 

Have a technical question for Fiber Optic Center?

Please email your question to AskFOC@focenter.com and we will respond ASAP.

In addition to replying, we will post your question and our answer here on the AskFOC page.  Everyone remains anonymous when we post so feel comfortable asking your questions.  You can also search to see if your question has already been answered in the FAQs section below.

AskFOC@focenter.com

Share this:
Kathleen Skelton

About Kathleen Skelton

Kathleen Skelton, as FOC's Director of Strategic Marketing, utilizes her expertise in business development, online strategy, market planning, digital best practices, standard operating procedure development, and content management. A graduate of Curry College, she holds degrees in Communications and Education, English and Psychology. Kathleen resides outside of Boston, MA with her husband and four children. Follow @KATHLEENSKELTON