Today I received the 190-T SFP module that I ordered. It took a bit longer than expected due to the module only being available from a small shop in Switzerland, which had two modules left in stock. Customs in Germany is horrible, so after a day of actual transport it sat on a shelf for quite a bit.
It seems that the module is detected and configured correctly:
Settings for enp10s0: Supported ports: [ FIBRE ] Supported link modes: 1000baseKX/Full Supported pause frame use: Symmetric Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 1000baseKX/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Speed: 1000Mb/s Duplex: Full Auto-negotiation: on Port: FIBRE PHYAD: 0 Transceiver: internal Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000007 (7) drv probe link Link detected: yes
In the meantime Netcologne had a contractor install the Mini-DSLAM, which basically is a grey box which - in case of Netcologne - takes a GPON connection and mangles it into 16 g.fast ports. These ports will be connected to any kind of cable with at least two wires leading to individual appartments.
As expected there is no other connection method available on the downstream. Easy and cost efficient for the common denominator (at least some sort of two old copper wires) but not future proof at all. So pretty much public german tech in a nutshell.
Netcologne will turn on the internets on their side next Saturday, so the testing (and probably hacking) will start then.