Compatibility is an important point for optical transceiver modules. Popular vendor brands like Cisco, HP, Juniper, Huawei etc. If code work ok， module’s info can be read out, such as PN, SN, Vendor name and DDM info. If not ok, switch will show Unknown, Unsupport ornot original module this kind of info. OPTINET has some switch models, our engineers team will check compatibility on it. And we are happy to provide customer with coding board for changing code.