Hello. We have an ATM machine in a hospital campus that is too far for Ethernet. It’s been connected using a TP-Link 100mbps fiber optic media converter for years. The other end is the same 100mbps grey box into a Cisco switch.
Now the connections are terminating to a new facility within the Hospital. Our new facility has the X450-G2. Rather than move the TP-Link box to that rack, across campus, I’d rather not have additional “junk” hanging off the switch. So I checked the TP-Link specs and it’s 1310nm SM FDX fiber. So I purchased an appropriate 1310nm 2km SFP and put it in the extreme switch. When I went to swing the cable over from the old feed to the new one that our cabling vendor ran, I got about -11dB signal according to show port 1:51 transceiver command. So physically for 100mb that’s a decent optical level. However the port never transitioned to an active / up state, and the TP-Link device link light did not illuminate, even after power cycling it.
So long story short, can’t the X450-G2 Poe sync up at 100meg FDX if the SFP is designed for it?
I’ll likely get a different media converter (1gbps) and SFP to match instead. FS.com has media converters with SFP sockets on them so you can customize the optics. I’ll likely go with that.