...presents with an LC connector...a duplex patch cable with LC at one end...existing fibre , probably SC or ST...allow you to connect...it is OM3 fiber so things...are using SC so i'll have to make sure i buy a SC LC patch cable Nigel...

...usually attributed to either a faulty cable or device somewhere in the chain...switches are connected via an existing fiber run (as opposed to a direct SC-LC patch cable), you might want to try eliminating the fiber run, if possible, from the equation...

...mode, rather I go through 2 fiber switches for redundancy...660f, I used a transciever to convert the db9 copper fiber to SC interface, and then a SC-LC patch cable to connect it to the swtich...