Fibre Optic woes!

[nonroker]

Especially now that VOIP is legal

 

[ic]

Especially now that VOIP is legal

& Telkomonopoly are allegedly giving VoIP traffic lower priority / applying increased latency ...

 

[DFantom]

Thanks for repeating exactly what I said

anyway i didn't say what you said. You said

no ways Telkom will run Fibre To The Home

I said

if you can justify enough usage Telkom will put in fibre.

you also said explictly that ADSL over fibre was impossible in SA and it was possible overseas with a convertor and I said it was possible in SA with a convertor that Telkom can provide (all be it at a great cost).

 

[mbs]

You say tow-may-toes,
I say tow-mar-toes...

You say Telkom,
I say Telkrap...

 

[eabeukes]

Fibre to your house is perfectly possible. Telkom's got a really good point though - it's not the optic >> cat5 converter thats the cost, its the actual cable! The problem is that optic doesn't do corners very well (being stretched glass) and a lot of houses (and bussines's) are situated at angles to the exchange. The exchanges run optic as backhaul, because fibre is a large bandwidth product. But since copper does corners with ease, its going to be the medium of choice for most telco's to get to your door. If you really want to know how much optic costs to the door, get a rough estimate from Equinox Converged Solutions - they provide my 2MB line

PS - this company also supplies ALL schools in the London and greater areas with 2MB optic lines as part of London Grid For Learning's ( LGFL) schools links.

 

[Karnaugh]

The problem is that optic doesn't do corners very well (being stretched glass) and a lot of houses (and bussines's) are situated at angles to the exchange.

Hu? I think most single-mode optic has a bend radius of about 100mm. We run it all over large businesses and industrial plants.

 

[BeLgaRiOn]

Well thanks for the feedback guys.

I didn't mean to imply that the fibre cable is to be supplied right to my doorstep. I merely wanted to point out the fact that Telkom told me that they cannot install ADSL for me in Hillcrest, Pretoria (South street to be specific) as a fibre optic cable runs the length of the street.

 

[Fiberfan]

Hi Belgarion & others

I think CARoper is correct here…a mini DSLAM will solve the problem of Fibre Optic Rings. To the best of my knowledge Telkom is actually implementing this technology (or will sometime soon) which should increase ADSL availability around the country. I know there were some problems with the initial mini DSLAMs (South Africa temperatures for one), but I think this has been solved. Maybe somebody with a Telkom contact can confirm this information…

Regards,

RPM

I can confirm. Telkom runs a fiber to selected areas and then puts a DSLAM down from where they service customers with ADSL over copper. However the DSLAMs are still somewhat unreliable, the bandwidth is also not too great. We have one of the first ones they ever put in. They have since replaced it with a newer version. It works for between 6 - 8 weeks, then is out of service for a week and then the cycle repeats.

The two versions work as follows:
You get a DSLAM that runs on a UMC. It gets a 2Mbps uplink over fibre and then they hook up 30 customers on it. The customer is allowed to burst up to 512K or 1024K depending on the line he has. So worst case you get 66Kbps throughput. The other version can handle up to 96 customers on a 2Mbps uplink (which can be changed to 8Mbps). Therefore if it is on an 8Mbps link you will get 83Kbps, worst case.

The better alternative to all of this is FTTH and FTTB (GE-PON) which gives 1 or 10Gbps per 32 or 64 customers, depending on the product used. It is allready deployed in some business and residential estates, but it is then still up to the local service provider to get international bandwidth. It does however easily enable IP-TV, VOD (Video On Demand) and online gaming through your IP-TV STB. I know of 2 companies doing this in South Africa.

 

[mac_mac74]

we arent a developed country

 

[Fiberfan]

we arent a developed country

Meaning what?
Did you know that even Rwanda has been running an FTTH deployment for the past 3 years?
I wouldn't exactly call Rwanda a 1st world country either.

It is all about the scale of economics of putting in FTTH.
1) Fiber cable is now mutch cheaper than copper since the metal prices went through the roof along with crude oil.
2) It costs a lot less money to maintain fiber optics, since it is immune to corrosion, lightning, electrical interference etc.
3) It costs a lot less to install fiber optics, because you get it as part of your power cabling. The fiber cores are housed inside the power cable.
4) You can service far more customers off 1 fiber core than you can off a single pair of copper wire.

Get it?

 

[SuperAntMD]

Meaning what?
Did you know that even Rwanda has been running an FTTH deployment for the past 3 years?
I wouldn't exactly call Rwanda a 1st world country either.

It is all about the scale of economics of putting in FTTH.
1) Fiber cable is now mutch cheaper than copper since the metal prices went through the roof along with crude oil.
2) It costs a lot less money to maintain fiber optics, since it is immune to corrosion, lightning, electrical interference etc.
3) It costs a lot less to install fiber optics, because you get it as part of your power cabling. The fiber cores are housed inside the power cable.
4) You can service far more customers off 1 fiber core than you can off a single pair of copper wire.

Get it?

Rotfl, with a name like Fiberfan- that was a very fitting post