ONU User Manual
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OLT is located at the top of EPON system, connecting the uplink aggregation server and downlink
ONU. OLT is the center of EPON system. The data sent from ONU goes through OLT to aggregation
server and the data from server goes thorough OLT to all the ONUs. In the meantime, OLT is in
charge of the management of all the attached ONUs, including monitoring, configuration, upgrade and
alarms.
ONU is located in the bottom of EPON system and closest to the end users. The multi-service access
EPON discussed in this guide can be viewed as the family gateway with PON interface. The link
between server downlink interface and ONU uplink interface is transparent. The data arriving at ONU
PON interface with their own VLAN TAG will find their end interface.
1.7 ONU SERVICE DESCRIPTION
Figure 5: ONU services distribution
Multi-service access ONU supports 3 types of services simultaneously, Internet, VoIP and IPTV.
a) Based on the designing of entire network, the 3 different services are separated into 3 different VLAN.
b) The multi-service access ONU can be viewed as a family gateway with uplink PON interface. The 3
types of services are mapped into 3 different WAN service/session—The 3 different WAN services are
divided into 3 different VLAN.
c)
According to real requirements, through the port binding, ISP can bind the user’s port to one particular
WAN service.
d) WAN service has 2 different types, which are Router and Bridge. Based on the application, the start
guide configures the following WAN services to 3 type’s services.
Internet WAN service type: Router
VoIP WAN service type: Router
IPTV WAN service type: Bridge
e) The WAN service that is belonged to VLAN 1 supports one Route, which is used by internet users.
