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Anonymous Poster

Fiber Optic Determination

12/31/2006 10:09 AM

Happy New Year to all. I want to get help on how am I going to specify the number of cores for Fiber Optic. Is there any universal rule on how to determine it? What is the maximum baud rate can one core handle? Appreciate reply on this topic.

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Anonymous Poster
#1

Re: Fiber Optic Determination

01/01/2007 4:29 AM

In a fibre optic cable we have no of pairs of cable . It can be a single pair , double

and so ON . Type of Fibre can be MM( 62.5/125) or MM(50/125) , Type of Cable Can be Loose tube type or a central tube type ( UNI ) .The colour can be each pair like Blue + White , Orange + white etc.

The attenuation coefficient is @ 1310 nm or 850nm / 1550 nm . The limits are like

in dB/Km @ 1310nm

for 62.5um/125um =< 1.5 , for 50um/125 um =< 1.00

Speed is upto 100mpbs

A K Khairkar -- Manager projects - LLOyds Steel __ India (0919423118832 )

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Anonymous Poster
#2
In reply to #1

Re: Fiber Optic Determination

01/04/2007 7:38 PM

There is no set baud rate for fiber it is dependent on the equiptment. Now that optical switches and routers are out there speeds will continue to increase as the bugs are worked out Lucent was first to market with the Lambda router. It didn't work well when introduced. That was 5 or 6 years ago though. transmitting at 1.6 Terra bits is not uncommon. The advancements in photonics are blinding. the amount of traffic you want to move is a matter of how much you want to spend. regeneration distances are different for OC12 / 48 / and 192. So ring size and fiber type will also be a telling factor.

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