The feeder cabling will eventually need to convert to smaller distribution cables. This is achieved at the first point of flexibility within the FTTH network and is generally known as the first concentration point (FCP). At this stage the feeder cable fibres are separated and spliced into smaller groups for further routing via the outgoing […]
TOPICS
Feeder Cabling in FTTx
The feeder cables run from the Access Node to the primary fiber concentration point (FCP) and may cover a distance up to several kilometres before termination. The number of fibers in the cable will depend on the build type. For point-to-point deployments, high fiber-count cables containing hundreds of fibers (up to 729/864) are needed to […]
MPLS Introduction
MPLS is Multiprotocol Label Switching, operates at an OSI Model layer that is generally considered to lie between traditional definitions of Layer 2 (Data Link Layer) and Layer 3 (Network Layer), and thus is often referred to as a “Layer 2.5” protocol. It was designed to provide a unified data-carrying service for both circuitbased clients […]
Time to migrating to 40G/100G
Data growth. The world revolves around digital data. We now rely on data to conduct business, engage in social activities and manage our lives. There is no sign of slowed growth in the production of, and demand for, more data – as well as faster access to it. According to the 2014 IDC Digital Universe […]
Smart SFP with integrated OTDR
Transition Networks, Inc. has unveiled the TN-SFP-BCxxxx line of Smart SFPs, gigabit optical transceivers with integrated optical time-domain reflectometer (OTDR) capabilities. The optical modules can help detect fiber breaks while performing typical transceiver functions. They also can locate such breaks within 10 m. On the transceiver end of things, the Smart SFPs support 1550-nm wavelengths […]
IEEE 802.3 forms study groups for 25, 50 and 100/200 Gbit/sec Ethernet
The Ethernet Alliance recently commended the decision to form three study groups within IEEE 802.3. The groups are exploring the development of standards for 25-Gbit/sec Ethernet over singlemode fiber, 50-Gibt/sec Ethernet over a single lane, and next-generation 100- and 200-Gbit/sec Ethernet. The Ethernet Alliance commented that by forming these groups, IEEE 802.3 is “demonstrating Ethernet’s […]
Comparison of WiMax and FTTH
WiMAX stands for Worldwide Interoperability for Microwave Access. The industry trade group WiMAX ForumTM (http://www.wimaxforum.org ) has defined WiMAX as a “last mile” broadband wireless access (BWA) alternative to cable modem service, telephone company Digital Subscriber Line (DSL) or T1/E1 service. FTTH stands for Fiber to the Home, in america, operators name it as FTTP […]
L’ARCHITECTURE DU G-PON
Le G-PON (Gigabit PON) est la solution qui a été choisie par le Groupe FT pour la solution de déploiement FTTH (Fiber To The Home). Les solutions G-PON déployées offrent un débit de 2,5 Gbit/s dans la voie descendante et 1,25 Gbit/s dans la voie montante. L’infrastructure ODN (Optical Distribution Network) est totalement passive comme […]
FTTH GPON : Class B+/C+, Distance Couplage à l’avenir
quelle est selon vous la tendance actuelle en matière de GPON au niveau distance, taux de couplage, classe de fibre Ou encore, les opérateurs misent-ils sur du GPON à base classB+ uniquement, ou entament-ils déjà le déploiement d’OLT compatibles class C+ car du coup, on peut imaginer des distances NRO-logement plus grandes selon la tendance, […]
Základy FTTx
Digitální účastnické přípojky xDSL na metalických místních vedeních se staly běžnou součástí života mnoha lidí. Vedle toho začíná postupně pronikat do podvědomí veřejnosti nová zkratka FTTx (Fiber to the …) označující řešení přístupových sítí na základě optických vláken. Základní přehled poskytl již článek Optické přístupové sítě a na něj navazující článek Optické přístupové sítě EPON […]