Private fiber link btwn two buildings in CBD
Hi, We require a dark fiber link between two buildings in the CBD which involves crossing Wabera street. I do not wish to go through any ISP network as this would have been an immediate solution but this is limited and not cost effective in the long run. It will involve obtaining city council permit, micro-tunneling under the tarmac etc. Pls inbox if you know any company that can deliver this. Rgds Kerich.
how much bandwidth do you need between the two buildings? Im thinking you: 1: have a lot of money and lots of time. A KM of fiber costs about Ksh. 1M, if you include all permits etc you are guaranteed to wait about 3 - 6 months. 2: don't have lots of resources? If you have needs for lets say 100Mb, I know people stopped using them a while back but free space optics will do that neatly for you. I can vouch for the technology since I have used it in the past to cross 'a road' as you put it. No licences, no hustles just buy the kit, get an installer. sorry I made the assumption that you had not looked at the FSO option and your needs can be satisfied by it. gitau On Thu, May 31, 2012 at 9:28 AM, Andrew Kerich <andykerich@gmail.com> wrote:
Hi,
We require a dark fiber link between two buildings in the CBD which involves crossing Wabera street. I do not wish to go through any ISP network as this would have been an immediate solution but this is limited and not cost effective in the long run. It will involve obtaining city council permit, micro-tunneling under the tarmac etc. Pls inbox if you know any company that can deliver this.
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On Thu, May 31, 2012 at 10:42 AM, John Gitau <jgitau@gmail.com> wrote: <snip>
If you have needs for lets say 100Mb, I know people stopped using them a while back but free space optics will do that neatly for you. I can vouch for the technology since I have used it in the past to cross 'a road' as you put it. No licences, no hustles just buy the kit, get an installer.
+1 for FSO. Regards, Steve
FSO is better than fiber in this case...you can do in excess of 1Gbps if price isn't too much of an issue. Alternatively use a 24Ghz backhaul which is license free. Ubiquiti has a solution in this regard - also >1Gbps - and it's cheaper than FSO in terms of cost per bit. -- Sent from my Android device
Another aspect to consider is portability - FSO and 24Ghz backhauls can be easily moved and are flexible up to about 10km apart with good LOS and fresnel zone. If you or your organization needs to move... -- Sent from my Android device
ive always wondered how FSO performs when say an opaque object obstructs. On Thu, May 31, 2012 at 11:13 AM, Haggai Nyang <haggai.nyang@gmail.com>wrote:
Another aspect to consider is portability - FSO and 24Ghz backhauls can be easily moved and are flexible up to about 10km apart with good LOS and fresnel zone. If you or your organization needs to move...
-- Sent from my Android device
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@Collins just as you would imagine...total signal loss akin to a fiber cut. :) Over distance FSO and 24GHz backhauls are susceptible to attenuation from rain, more so the former. Even bad fog can really throttle down FSO throughput. FSO links still exist, given my visits to many rooftops around Nairobi as others may also attest...but I don't know if they are operational. They may be backups just in case someone cuts the fiber...most users are GSM operators.
On Thu, May 31, 2012 at 2:03 PM, Haggai Nyang <haggai.nyang@gmail.com> wrote:
@Collins just as you would imagine...total signal loss akin to a fiber cut. :)
Over distance FSO and 24GHz backhauls are susceptible to attenuation from rain, more so the former. Even bad fog can really throttle down FSO throughput.
+1, had issues with heavy July fog on a FSO link from NSSF to CBD (Loita Street) in a past lifetime. BR S
Im still appaled by the fixation on fiber yet its only improvement as a technology is in the switching... did I read somewhere that beyong gigaherts switching is still possible on copper with the right "terminal devices"? On Thu, May 31, 2012 at 5:18 PM, Steve Muchai <smuchai@gmail.com> wrote:
On Thu, May 31, 2012 at 2:03 PM, Haggai Nyang <haggai.nyang@gmail.com> wrote:
@Collins just as you would imagine...total signal loss akin to a fiber cut. :)
Over distance FSO and 24GHz backhauls are susceptible to attenuation from rain, more so the former. Even bad fog can really throttle down FSO throughput.
+1, had issues with heavy July fog on a FSO link from NSSF to CBD (Loita Street) in a past lifetime.
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@Collins it is possible, however it can't beat fiber due to the following reasons: - copper prices have skyrocketed of late - thugs from the hood will dig it up as soon as you bury it! - OFDM and other optical multiplexing tech which results in fiber having throughput in the order of many times over what copper can do. In this case, upgrading the undersea cable links should mostly be through changing the terminal equipment. See this: http://www.bbc.co.uk/news/science-environment-13469924 Copper still has some use e.g. upgrading an old building by using the existing copper infrastructure within. Most cases I've noted however do this through 1Gbps Ethernet. As for 10Gbps...maybe those who set up wired networks for a living can chip in on its use locally - 10G terminal devices don't come cheap.
participants (5)
-
Andrew Kerich -
Collins Areba -
Haggai Nyang -
John Gitau -
Steve Muchai