AsGa LD ONU 500
User Guide
Introduction
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1 INTRODUCTION
Fiber access is one of the most important technologies in next generation network. It
increases the access layer bandwidth and builds a sustainable development access layer network.
PON realizes P2MP transmission through the POS (Passive Optical Splitter). The fiber
connected to the OLT port is split it through by the Splitter into multiple channels to the
ONUs of different users.
The distance between OLT and ONU is longer i.e. 20 km. With the PON technology, the ODN
(Optical Distribution Network) does not have active nodes. The feature of passiveness makes
the network deployment flexible, because the equipment room and power supply are not
needed.
Some of the advantages of this technology are:
Reduced cost. The equipment and fiber at the Central Office are shared by users, so the
cost is lower than of P2P. Because equipment room and power supply are not needed, the
capital construction cost is greatly reduced. The cable distribution at the CO is easy.
Easy maintenance. Any active equipment is removed form the access network , thus,
the failure rate of the line and the external equipment is reduced. Therefore, the operation
and maintenance cost is reduced.
AsGA LD-ONU-500 (Optical Network Unit) is the simplest ONU from AsGa LightDrive product
family. High Cost-effective Triple Play enable platform.
LightDrive family of ONU 500 is composed by:
LD ONU 500
Two GigE Ports
One GPON Port
One RS232 Console Port
Bridged Unit
LD ONU 500-S (Synchronous Unit)
Two GigE Ports
One GPON Port
One RS232 Console Port
Bridged Unit
Synchronous Characteristics (SynC-Ethernet) on both GigE Ports
