Altice Labs FGW GR140DG Wi-Fi 6, User Manual

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FiberGateway
access protocol (Time Division Multiple Access - TDMA). The OLT queues data to the various ONT
terminals in order to provide time slot assignments for upstream communication.
In Figure 5 it is shown a scenario for a multi-service user domain basic architecture through an ISP.
Figure 5: Optical fiber Internet service user access
In the upstream direction, the FiberGateway is connected to the optical splitter and respectively to the
OLT through the PON port to provide integrated access services through the service headend.
In the downstream direction, the FiberGateway is connected to various terminals through the following
LAN-side ports to implement multi-play services:
• Four 10/100/1000M Base-T Ethernet ports, which can be connected to terminals such as PCs,
STBs, and video phones to provide the high-speed data and video services;
• One FXS ports, which can be connected to telephone sets to provide VoIP services;
• Four Wi-Fi antennas, which can connect to Wi-Fi terminals wirelessly to provide a secure and
reliable high-speed wireless network;
• One USB port, which can be connected to a USB storage device to provide convenient storage
and file sharing services within a home network;
The communication between client equipment (ONT) and the ISP access routers (MAN edge) is made
by an optical fiber-based passive architecture (ITU-T G.984 Recommendation). The GPON network acts
as a Layer 2 Ethernet metropolitan network. Access network assures and controls the media (MAC)
communication through a TDMA scheme, introducing GEM (GPON Encapsulation Method) in between
to adapt TDM layer to Ethernet.
The used protocol stack is shown in next figure