Hello emanito28!
The AND2EM8F0 8 Channels GE/FE Optical Interface Board, is NOT supported in PTN6900-2-M8.
That board is for ATN product family, such as ATN 950, ATN 980, ATN 910, etc
You can find hedex info about ATN here:
https://support.huawei.com/hedex/hdx.do?docid=DOC1100488188&lang=enAlso you can find info about PTN6900-2-M8 here:
https://support.huawei.com/hedex/hdx.do?docid=DOC1100657454&lang=enBest regards!