[AusNOG] Water in Fibre cables

[Matthew Moyle-Croft]

On 09/03/2012, at 11:42 AM, XiTatiON wrote:

> Yup where required new cabinets will be installed...
> 
> I believe the plan is to also retro fit into existing spots where possible, unless this has changed.

You maybe thinking of the underground plant:

An example of an NBN pit (not reused Telstra one mind you in this photo):

http://1mmc.com/pub/nbn-pit.jpg

Top of the pit has the ruggised connector box (preterminated cable into the house) and an example of a fibre joint.   No splicing for last bit into your house - just premade leads.  Just like FiOS - same Corning solution.

You can see water and mud has gotten into the pit but hasn't affected anything as expected.

MMC


> 
> On 9/03/2012 12:09 PM, Matthew Moyle-Croft wrote:
>> 
>> 
>> On 09/03/2012, at 11:33 AM, XiTatiON wrote:
>> 
>>> http://blogs.cisco.com/wp-content/uploads/NBN-fibre-serving-area-550x388.jpg  (sorry not the best picture ever... couldn't find a better one though.)
>>> 
>>> So basically what happens is a single fiber runs from the OLT to a passive splitter that you will find in some of the old Telstra poles and pits around the place.  A single fiber is used for TX and RX using different wavelengths. 
>> 
>> Splitters are in roadside cabinets.  See this photo for an example:
>> 
>> http://1mmc.com/pub/nbn-roadside-cab.jpg
>> 
>> Top of the cabinet are the splitters - fibre connectors on the back panel are towards the customers.  
>> 
>> Moving customers around and connecting them is dead easy, just need a fibre cleaner.   You can see how easy it is to           reposition customers between splitters if one runs out of bandwidth or you move to a new technology.
>> 
>> MMC
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