My FTTH connection is using an old
CareLink CL-MC-W2B-20-100 optical converter. It is labelled:
10/100 Base-T to 100Base-Fx bi-direction/single fiber media converter
10/100M Single mode WDM 20Km Tx1550nm/Rx1310nm
Based on wavelengths I assume, that correct label should be
Since Keenetic Giga 1010 does have an SFP port, I want to replace the converter with an SFP module. The question is how to choose a correct module.
Datasheets for SFP modules show that data-wise laser diode and photodiode are directly connected to the device, therefore module should not care about link speeds and protocols at all, as long as they can pass frequencies high enough.
Do I need to hunt for a 100M module with exact specs, or can get any decent gigabit/1.25Gb/over one with WDM, correct wavelength, distance rating and SC/UPC connector?