What is an 8 Port GPON OLT, and how does it work in a fiber optic network?
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An 8 Port GPON OLT is a central device in a GPON-based fiber optic access network that connects service providers to end users. The "8 Port" designation indicates that the OLT has 8 PON (Passive Optical Network) ports, each capable of serving multiple end users through optical splitters.
**Key Functions of an 8 Port GPON OLT:
Signal Transmission:**
The OLT transmits data signals downstream to ONUs/ONTs (Optical Network Units/Terminals) and receives upstream signals from them.
It uses WDM (Wavelength Division Multiplexing) to manage upstream and downstream data on the same fiber.
Bandwidth Management:
It allocates bandwidth dynamically to users based on demand using DBA (Dynamic Bandwidth Allocation), ensuring efficient resource utilization.
Traffic Aggregation:
Aggregates traffic from multiple users (via ONUs/ONTs) and forwards it to the core network using uplink interfaces (usually 1G or 10G Ethernet).