For example, we have OptiXstar EG8010Hv6-10 vs OptiXstar HG8010Hv6-10
or
OptiXstar EN8010Ts-20 vs OptiXstar HN8010Ts-20
To answer a question we need to understand two series Huawei OLT:
EA5800 – OLT designated for enterprise marked.
MA5800 – OLT for ISP/carrier market.
EA5800 and MA5800 have some differences in features and hardware(boards) not compatible.
EG and EN ONT compatible with EA5800 and MA5800.
HG and HN ONT compatible with MA5800, but is not compatible with EA5800.
So we recommend to purchase EG and EN as it has better compatibility.