fibre optic

[DRGL]

What is the difference between 62.5/125 & 50/125 fibre?? I've got a 4 core run to replace and was planning on using 62.5/125(pre terminated) as that's what we've always used but would like to know the difference!! Also,is there anything wrong with pre terminated? To me it's a great idea but one person i was speaking to said it was useless!! Surely someone can terminate fibre BETTER in a workshop environment then in the field? Thanks guy's.......

 

[smegecki]

62.5 is the current multi mode standard.

http://www.lanshack.com/fo_fibercore_info.htm

http://www.generalcable.com/North_America/NA_Assets/ProductBulletins/MmodeFibSelGde.pdf

Preterm is nice if your careful as you install the fiber. if you damage the pretermed ends you may wind up with a failure or high loss. You must use more care when installing preterm cable. Plus you may wind up with too much excess or not enough depending on how good a job measuring you did.

I dont think it matters as long as you choose match patch cables. I could be wrong. Check out the links above. You may find some useful technical mumbo jumbo

Smegecki

 

[smegecki]

My googlefu is stronge grasshopper.

Here is a great site.

http://www.cablelan.com/50_micron_fiber.htm

 

[smegecki]

One more.

http://www.lightbrigade.com/articles/MonthlyColumn.asp

Qouted from above site:
"...the 50/125 has lower loss at both 850nm and 1300nm wavelength, has higher bandwidth and the best news yet - It cost less to manufacture (10%)! It uses the same connectors due to its outside diameter of 125 microns and uses the same transmission equipment as your existing 62.5/125 fiber."

I'm done. Can you tell it's slow at work?

 

[DRGL]

Thanks for all the info i have a feeling you don't have much work going on

 

[smegecki]

You're welcome. Hasnt been much going on for a few weeks now.