Recent content by technomagus

Indeed it was - but it's turned out not to be the fibre side of things, but the Ethernet patch cable I was using at the LAN (cf device) end. I'd used a patch cable that I knew to be working, tested it, then installed it, so thought that was working. But not. Just replaced it with a longer drop...

Yep, and i use proper (and shielded) Ethernet patch cables - same as I use on our enterprise gear, so no issue there. I also tried repatching the same cables past the FMCs and it was working just fine. What I was referring to was the fibre patch cable, not the ethernet one

Well, that didn't work: attentuators made no difference whatsoever. Nor did moving the entire sub system to another part of the LAN. Only thing left to try is a new patch cable, before deciding that at least one of the FMCs is faulty

Unfortunately none around - all our stuff (we have a community ISP) is single mode and LC - I had to buy an SC patch cable for the FMCs. Attenuators should arrive tomorrow, so will give those a try.

First thing I tried - using the same Ethernet patch cable that was connected to the FMC - immediately jumped to 900Mb/s+ both ways, so that's fairly definitive

Apparently not - anyway, I've ordered some 10dB attenuators and will see if that makes a difference. - Thanks!

Correct, but it's much easier to get single mode devices. Interesting that it may be overloading, and i'll try a pair of attenuators - presumably 5dB would do the trick and I'm assuming that I'd just need a pair , one on each TX port? Slight conceptual difficulty as we use short single mode...

Bit of a head scratch there as, with attenuation at around 0.5dB/km, that shouldn't be an issue.

Correct: just running just over a 1.5m patch. Single mode as higher bandwidth and all the usual reasons for not using multimode any more - like most FMCs, the TP-Links are single mode. No issue with ethernet connection as using the same cables, just moving the patch from the FMC loop directly to...

I'm experimenting with galvanically isolating part of my house LAN using a pair of TP-Link fibre media converters (MC210CS) back to back, connected to a local Netgear gigabit switch at the isolated end and the main Netgear gigabit switch upstream. The FMCs are connected using an SC OS2 Single...