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30 NTU Optical Network Terminals
The IPInterface block is a logical object with an IP address for LAN access and a DHCP server, which
assigns addresses to clients.
A connection to the OB device (successful connection to a stationary OLT) additionally creates the
gpondef blocks with the help of the OMCI protocol (ONT Management and Control Interface). The block ensures
connection of the subscriber’s ONT device to station-side equipment.
Fig. 19—Architecture of the Device Configured for Triple Play
Model 1 Services
The blocks created by the OMCI protocol during connection to OLT (left) are shown for clarity and do not
describe the real architecture.
The gemport blocks represent logical terminals of gem ports that are used for transmitting traffic of
various services.
The GEM4094 block is a logical terminal of the GEM port used for multicasting. It multicasts traffic
downstream. WANConnectionDevice receives the multicast traffic from this block and sends it further to Bri
interfaces based on the table of IGMP groups.
The bronu0,9 blocks are MAC bridge service profiles (recommendation G.988).
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