Add SFP port to ZyXEL GS1900-8

[meteora]

Hi. Some one tryed add SFP port to ZyXEL GS1900-8. The blue board of ZyXEL GS1900-8 rev v1.2 have some free 20-pin connector that market "J11"

I don't test it yeat with multimeter but i think that this is SFP
Probably can be installed firmware from ZyXEL GS1900-8HP and SFP will be done!

[howels]

I've got a larger GS1900-48 and the SFP ports are not working on OpenWRT yet if I remember correctly.

[meteora]

bad news... do u tested it on some smaller? GS1900-10HP, etc?

[howels]

I think this applies to all Realtek targets as far as I know. It's in-progress currently.

[meteora]

Some stuff from mikrotik hex s thread:

RB760iGS (hEX S) SFP working?

I have been using a proscent 180-t vdsl SFP module for ages on 21.02.x on my hEX S, the only thing that I needed to do to make it work was disable autonegotiation using ethtool: ethtool -s sfp speed 1000 duplex full autoneg off However I upgraded to 22.03 and it no longer works. pppoe just continually times out waiting for PADO, presumably the traffic is not passing to the SFP. I reverted to 21.02 again and immediately it started working. Any ideas?