I use Huawei OLT MA5680T and GPFD in my network, i'd like to know if I wanna use ZTE dual-band ONT with my OLT?
Yes, Huawei OLT MA5680T can be compatible with ZTE dualband ONT, like ZTE ZXHN F670L and ZTE ZXHN F673.But kindly note the OLT needs to be unlocked
You could also try to use universal - interoparable ONTs like EvoTech or others. I am using EvoTech UM806 ONT with my Dasan and Huawei OLTs (my OLTs aren't unlocked, but this ONT can work well with R16 sw at my HWTC OLT). I think this may be something you are searching for, because it's 4x4 160Mhz AC model with 2x2 b/g/n also. I found this vendor based on videos available at Youtube www.youtube.com/.../UC-IZPKU2ui8D2VB56VJ0Eww there are some contact informations to the vendor in video descriptions. Check it