rkruz
join:2005-01-11
Sunnyvale, CA
|  Physical Diversity of fiber plant requirement?
Is there an industry standard for the physical separation of redundant fiber cables.....say in SONET ring with redundant primary and protect fiber paths? If the ring tends to collapse and both sides of ring approach each other, are there industry standards or other guidelines for what the minimum seperation should be to reduce risk of a cut to both fiber bundles...say with a backhoe.
Any insights appreciated.
thanks |
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LazMan
join:2003-03-26
Angus, ON
 ·Bell Sympatico
 ·Rogers Hi-Speed
| I don't know about a standard, but best practice is to maintain as much seperation as possible...
Ideally, the cable is in different physical locations (different streets) and enters the building from different locations.
For my company, the minimum requirement for 'limited diversity' is seperate ducts in the same structure. For full diversity, seperate duct-structures (although still allowed on the same road, as long as they are on different sides) is the minimum seperation allowed.
We will also lease facilities off other providers to provide diversity, if we can't build it ourselves...
Laz |
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cob_
1310nm Of Goodness
Premium
join:2003-07-08
Tulsa, OK | reply to rkruz
What LazMan said. It's commonly referred to as "diverse laterals". |
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fiber_man
Things Happen For A Reason
Premium
join:2001-01-27
Port Saint Lucie, FL
| reply to rkruz
I don't know if it is company wide but locally true fiber rings into customer buildings is minimum 6 foot separation of the cables. We have one that one cable is aerial and the other one is buried right below the other one to the same building.
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GO NOLES!! |
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rkruz
join:2005-01-11
Sunnyvale, CA | thanks all. great inputs. it helped a lot. |
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More Fiber
Premium
join:2005-09-26
West Chester, PA | reply to fiber_man
I was working at a major telco data center (shall remain nameless) that had dual fiber conduits coming up the outside of the building. Thye must have been less tha 6 feet apart, because the lanscaper took out both conduits with his backhoe. |
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