HCD's GPON OLT SFP Module is designed for passive optical network application. It supports asymmetric data rate operating at 2.488G downstream and 1.244G upstream. It is fully compliant with ITU-T G.984.2.The GPON OLT transceiver is packaged of small form factor pluggable with SC receptacle. The digital diagnostic monitoring function is compliant with SFP MSA.