+ Post New Thread
Results 1 to 4 of 4
Wireless Networks Thread, FSO reliability? in Technical; Has anyone got a FSO link in operation? and if so how reliable is it? Since joining the school in ...
  1. #1
    Jamman960's Avatar
    Join Date
    Sep 2007
    Location
    London/Kent
    Posts
    996
    Thank Post
    188
    Thanked 198 Times in 158 Posts
    Rep Power
    47

    FSO reliability?

    Has anyone got a FSO link in operation? and if so how reliable is it?

    Since joining the school in 2008 I've been looking into various ways to connect our two sites reliably and the head has now agreed to fund it. At the moment I'm looking at Free Space Optics(FSO) at gig speeds, the cost isn't all that bad compared to every other method of connecting at reasonable speeds.

  2. #2

    Join Date
    Jul 2009
    Location
    Oldham, Greater Manchester
    Posts
    11
    Thank Post
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    Hi Jamman

    The main consideration of FSO is the area its installed in, i.e. the real killer of FSO is fog, which is apparent near the coast. We install FSO (although not in your area) and agree tha is is a really good technology, especially if you want gigabit. What we tend to also affer a radio backup, subject to required response times and how critical the link is. You shouldn't be looking at more than £2k for a decent throughput backup.

    Some manufacturers incorporate the abaility to connect the backup link in to the FSO and automatically switch over, but you will pay a premium for this. Cheaper to get a couple of failover WAN routers, or just patch it in manually as and when required.

    HTH

    CP

  3. #3

    Join Date
    Dec 2009
    Posts
    914
    Thank Post
    98
    Thanked 184 Times in 159 Posts
    Rep Power
    55
    I know your specifically talking about FSO, but dependant on the distance of the sites would fibre be an option?

  4. #4
    Jamman960's Avatar
    Join Date
    Sep 2007
    Location
    London/Kent
    Posts
    996
    Thank Post
    188
    Thanked 198 Times in 158 Posts
    Rep Power
    47
    Thanks guys, sorry for not replying sooner - hadn't spotted the replies

    Having done far too much research(including gathering visibility stats from a local airport's weather station) we've decided FSO with an RF backup is the way to go, as the distance is only around 220m in a suburban area fog shouldn't be too much of an issue, from what I can gather it wouldn't even be an issue at the airport with the exception of around 5-10 working hours each year. Its just a case of finding the right company for the install now.

    We looked into wired options first including BT/NTL and Fibre via the sewers(H20 Networks). The best option availible was fibre via the railway line behind our sites, I went as far as asking Network Rail but found the price rising very quickly, especially as they'd need to close the line they also said that vandals often attack any cables they can get hold of and any repairs would need to be paid for by us again. I'd expect the initial cost to be £15k minimum with any repairs costing another £7k easily.
    Last edited by Jamman960; 15th March 2010 at 09:35 PM.



SHARE:
+ Post New Thread

Similar Threads

  1. Raid5 for performance and reliability
    By zag in forum Windows
    Replies: 2
    Last Post: 2nd April 2008, 12:35 PM
  2. Poor hardware reliability
    By DMcCoy in forum Mac
    Replies: 8
    Last Post: 8th February 2008, 03:25 PM
  3. ICT Reliability / Prevalence of problems
    By crc-ict in forum General Chat
    Replies: 4
    Last Post: 26th October 2005, 03:21 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •