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GPON ONT
1. Summary
The Refs. 769501-769502 is an Optical Terminal Equipment (ONT) unit for Passive Optical Networks (PON) termination in a FTTH (Fiber-To-The-
Home) service delivery architecture . Refs. 769501-769502 communicates with the OLT (Optical Line Terminal) for the PON side and with the
customer’s premises for the client side. This equipment supports triple-play services - high speed internet (HSI), voice (VoIP), video (IPTV and RF
Overlay) and WPS (WI-FI Protected Setup). The use of the GPON ber access technology does allow a signicant service delivery increase when
compared with traditional xDSL technologies.
The Refs. 769501-769502 equipment technology is based on GEM (GPON Encapsulation Method), and complies with ITU-T G.984.x. recommenda-
tion as like as G.984.4 (OMCI) ensuring interoperability with major GPON OLT vendors (BBF.247).
These base functionalities, together with the support for bit rates of up to 2.5 Gbps (downstream) and 1.24 Gbps (upstream), an optical network
splitting ratio of up to 1:64 in a single ber and a distance range of up to 60 km, make the GPON technology and the Refs. 769501-769502 the most
ecient option for passive optical network topologies, when integrated service delivery is an issue.
Together with multi-vendor OLT interoperability (BBF.247 certied), other dierentiated features of the Refs. 769501-769502 product are the
embedded RF Video Overlay as well as the chance to have several TV channel packs by means of using remote managed analog RF video overlay
lters. The use of an embedded optical reective component also increases probing resolution in case of FTTH probing. The Refs. 769501-769502
is also one of the rst single household integrated CPE solution (ONT+GATEWAY).
As opposed to the point-to-point architecture, in which there is one physical port per client in the Central Oce, in GPON point-to-multipoint
architecture there is only a single laser and photo-detector in the Central Oce (CO) to serve up to 64 CPEs. All the Optical Distribution Network
is built by means of passive equipment modules with a long live MTBF standards and very low OPEX.
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