I have a TrendNet TFC-110S15 fiber converter. It is a SC type single-mode fiber converter for a 15km run. I was thinking of replacing it with a TrendNet TFC-1000S20 converter (20 km run), but am not sure about compatibility. Both are single mode fiber converters running at 1310nm wavelength. Is this a drop in replacement? If not, what should I be looking in a new fiber converter to have a drop in replacement?
The end goal is to replace the 10/100 Ethernet jack on the old converter with a gigabit Ethernet jack. I'm considering this as a possible solution to this other question.