PeterBrown
When it comes to choosing an ONU, understanding the properties between each ONU and knowing the difference play a significant role. HGU compared to SFU uses and report to the Virtual Ethernet Internet Point which is the total interface of ONU. HGU integrates all functions of ONU and RG in its management. HGU is mostly used at homes and has WiFi properties. While on the other hand SFU supports only the OMCI domain and also uses and report to the Physical Path Termination Point. The SFU has bridging functionalities therefore being able to support multiple VLAN functions whiles its Ethernet ports are able to be configured and managed by OLT through ONU Management and Control Interface.
Simply say, the SFU ONU only has bridge function, no router function. SFU ONU need to work with router. HGU has the router function.
Simply say, the SFU ONU only has bridge function, no router function. SFU ONU need to work with router. HGU has the router function.