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GPON Technology Diagram Overview

by ShahedJanuary 5, 2012October 26, 20151

GPON Technology Diagram: Gigabit Passive Optical Network (GPON) is a high bandwidth shared fiber access technology. GPON is a point-to-multipoint access mechanism. Its main characteristic is the use of passive splitters in the fiber distribution network, enabling one single feeding fiber from the provider’s central office to serve multiple homes and small businesses. [boxads] GPON has a downstream capacity of 2.488 Gbps and upstream capacity of 1.244 Gbps that is shared among users. Encryption is used to keep each user’s data secured and private from other users. Although there are other technologies that could provide fiber to the home, passive …

by ShahedJanuary 3, 2012October 30, 20150

PON Principles: [bodyads] (Almost) all PON types obey the same basic principles OLT and ONU consist of Layer 2 (Ethernet MAC, ATM adapter, etc.) optical transceiver using different ls for transmit and receive optionally: Wavelength Division Multiplexer Downstream transmission OLT broadcasts data downstream to all ONUs in ODN ONU captures data destined for its address, discards all other data encryption needed to ensure privacy

by ShahedJanuary 2, 2012October 30, 20151

PON Types: A passive optical network (PON) is a system, that brings optical fiber cabling and signals all or most of the way to the end user. Depending on where the PON terminates, the system can be described as fiber-to-the-curb (FTTC), fiber-to-the-building (FTTB), or fiber-to-the-home (FTTH).[boxads] A PON consists of an Optical Line Termination (OLT) at the communication company’s office and a number of Optical Network Units (ONUs) near end users. Typically, up to 64 ONUs can be connected to an OLT PON port. The passive simply describes the fact that optical transmission has no power requirements or active electronic …

by ShahedJanuary 2, 2012October 30, 20150

PON Architecture: Like every other field, PON technology has its own terminology [bodyads] the CO head-end is called an OLT ONUs are the CPE devices (sometimes called ONTs in ITU) the entire fiber tree (incl. feeder, splitters, distribution fibers) is an ODN all trees emanating from the same OLT form an OAN downstream is from OLT to ONU (upstream is the opposite direction) PON Architecture Diagram: OLT (Optical line terminal) OLT is a terminal equipment connected to the fiber backbone. It sends Ethernet data to the ONU, initiates and controls the ranging process, and records the ranging information. OLT allocates …

by ShahedJanuary 2, 2012October 30, 20150

PON Advantages: Shared infrastructure translates to lower cost per customer minimal number of optical transceivers feeder fiber and transceiver costs divided by N customers greenfield per-customer cost similar to UTP [boxads] Passive splitters translate to lower cost can be installed anywhere no power needed essentially unlimited MTBF Fiber data-rates can be upgraded as technology improves initially 155 Mbps then 622 Mbps now 1.25 Gbps soon 2.5 Gbps and higher

by ShahedNovember 4, 2011October 30, 20150

How to stop repeat Ping command ? Which command you are trying to stop/Break repeat ping when you face problem cisco Switch/Router. [bodyads] Don’t worry please try bellow command, it’s work successfully. Hold down Ctrl+shift+6, release and then press x immediately. This may work depending on your IOS.