[AusNOG] Water in Fibre cables

[XiTatiON]

Good point.

On 9/03/2012 1:54 PM, Matthew Moyle-Croft wrote:
> They're not very big but when you're reusing Telstra's duct network 
> then it constrains the design.  Imagine one of the fibre cabinets 
> where each of the current pillars is.  That also gives you most 
> flexible and efficient use of the fibre.
>
>
>
> On 09/03/2012, at 13:12, XiTatiON <xitation at gmail.com 
> <mailto:xitation at gmail.com>> wrote:
>
>> Ah yeh that would make more sense :)
>>
>> The splitters themselves aren't very deep though, could potentially 
>> fit inside lots of things.  Weatherproofing and bend radius are 
>> things that need to be considered though.
>>
>> On 9/03/2012 12:17 PM, Matthew Moyle-Croft wrote:
>>>
>>> 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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