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Hi, Trying to get my head around our fibre network and the limitations. We had the cables tested back in 2015 - some of the results attached. All cables are identified on this report as OM3. Looking at the results, the fact there are multiple tests on the same line - does this indicate: Year Leaders is 2 Channel? Lab is 8 channel? Finance is 2 channel? I can't seem to find how that would limit the speed of the cables. Currently we have a 1gb switches but want to know if these are capable of supporting 10gb? What is the difference (in layman's terms) with the multi channels - if this indeed means this! Any help understanding this greatly appreciated. Richard

Hi All, I am having a bit of trouble getting my head around the idea of what exactly is a 24 core multi-mode fibre optic cable. I know what multi mode is. However I do not fully understand what is meant by 24 core. Is it like having 24 individual fibres in one wire. If so how does each of these individual wires connect to the switches or media convertor and do they allow diffrent data to be carried down each of the cores. Thanks in advance for your help

Hi all, We're in the process of updating our wired network to help support lots of mobile devices and I've come across an issue with a fibre connection between two switches: Currently they are connected by an ST terminated fibre patch that is then connected to a media converter that is then connected to the switch (100M/bit connection). We're going down the route of Gig switches so the fibre needs to either be converted to a suitable connection to a switch (SFP, Gbic) or failing that a new media converter with an ST - SC patch. I'd really like to avoid the use of a media converter but fibre connections baffle me so any help on a possible solution would be greatfully received.

G'day This perhaps a stupid question, but I am unsure if our fibre installation was done right or if I'm just thinking about it the wrong way. I'm looking for feedback from people who also have fibre patch panels with LC connectors - basically what most switches now come default with. Do you need to flip polarity on one side of your patch cords with default polarity LC duplex patch cords? Longer explanation: For years we only had the old style ST connectors on the fibre patch panels, since that's what was standard like 15y ago. As long as they don't break, they will stay installed and they seem to be quite trusty. :-) This kind of connector is simplex only, checking fibre polarity on them is normal procedure then. I'm not a fibre guy, my normal network connection in 99% of daily work is RJ45 :-) Now a new fibre run has been added to a building with the nowadays default-style LC connectors. These ports are duplex - I've once seen simplex LC patch cords but they seem to be rather seldom used. Until now I've never used LC to LC connections other than for switch to switch cabling, no passive coupling in between like a patch panel. With duplex LC cables I've never had to think default polarity although lots of LC patch cords allow flipping fibre pairs at the connector if you need to (but not all as I've found) Now with the new install I've realized that using default-polarity patch cables I've had to flip the connectors on one of the 2 ends to get correct polarity. Is this considered to be normal? Reading white papers about fibre polarity standards like this one from AMP makes me think that one should not nned to flip pairs but if connections were done right, one should not need to bother about fibre polarity ? http://www.ampnetconnect.com/documents/WHITEPAPER_Fiber_Polarity_Simplified_090813.pdf