Category: Optical Cable

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Blowing Method for Air Blown Fiber

December 5, 2017
Cable installation by using high-speed air ow combined with additional mechanical pushing force is called as “blowing or jetting”. Cable blowing is the process of installation of optical ber cable into a pre-installed duct. Compressed air is injected into the duct inlet after few hundred meters of cable is pushed into the duct. Compressed air blows at high speed through the duct and along the cable. The pushing force is applied mainly near the cable inlet by a pushing device. Standard optical ber cables (like uni-tube, multi-tube, unarmored & armored), micro- duct cables, and micro-ducts can be installed by using
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Choix de la fibre pour FTTH

June 1, 2017
La fibre la plus couramment employée dans le domaine des télécommunications demeure la fibre monomode G652.B & G652.D (standard UIT-T repris par la CEI 60793). Grâce à son faible affaiblissement linéique et à sa bande passante, elle permet la réalisation de liaisons longue distance à très hauts débits. Ces fibres sont préconisées dans les réseaux de collecte et d'accès. Afin de rapprocher la fibre au plus près de l'utilisateur, de nouvelles fibres moins sensibles aux contraintes de courbures ont vu le jour ; elles répondent au standard G657 de l’UIT-T. Elles sont préconisées dans le câblage intérieur du PR à la
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Categories: FTTH Network, Optical Cable
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What you should know about ADSS Cable

March 23, 2017
ADSS cables. All-Dielectric Self Supporting cables. The All-Dielectric Self Supporting (ADSS) cable is a completely non-metallic structure in which the tensile load bearing elements are integral within the circular design of the cable - usually in the form of aramid yarns or stranded glass reinfroced plastic rods. The structure of ADSS Cable Typically a loose tube cable design Designs are application specific   The Applications of the ADSS Cable  – Cable supports itself No external support or messenger wire – Uses new and existing right away Distribution or Transmission Lines – Designed to specific weather conditions NESC Light, Medium or Heavy Load   The Advantages about
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Tarluz Loose Tube Type Air Blowing Cable

February 10, 2017
Tarluz offers loose tube type air-blowing cable, the fibers are positioned in a PBT loose tube, the tube filled with water resistant filling compound, The loose tubes are stranded around a central plastic central strength member. The cable is completed with an outer sheath. Fiber Count Configuration Fillers Outer Diameter (mm) Cable Weight kg/km Tensile Strength (N) Crush Resistance (N/100mm) Bending Radius mm Micro duct diameter (mm) Tubes x fibers Long Term Short Term Long Term Short Term Static Dynamic 24 2 x 12 4 5.7 23 150 500 150 450 10D 20D 10/8 36 3 x 12 3 5.7 23 150 500 150 450 10D 20D 10/8 48 4 x 12 2 5.7 23 150 500 150 450 10D 20D 10/8 60 5 x 12 1 5.7 24 150 500 150 450 10D 20D 10/8 72 6 x 12 0 5.7 24 150 500 150 450 10D 20D 10/8 96 8 x 12 0 6.5 33 150 500 150 450 10D 20D 10/8 144 12 x 12 0 8.5 55 300 1000 150 450 10D 20D 14/12 144 6 x 24 0 7.9 42 300 1000 150 450 10D 20D 12/10 200um Bare Fiber Fiber Count Configurations Fillers Outer Diameter (mm) Cable Weight kg/km Tensile Strength (N) Crush Resistance (N/100mm) Bending Radius mm Micro duct diameter (mm) Tubes x fibers Long Term Short Term Long
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کابل فیبر نوری و کد اتصال رنگ

October 21, 2016
سال ها از نصب انواع کابل های فیبر نوری سینگل مود و مالتی مود توسط کارشناسان فیبر نوری به عنوان backbone شبکه ها می گذرد . عالوه بر کابل های شبکه مسی امروزه فناوری کاربرد کابل های فیبر نوری با دو نوع سینگل مود و مالتی مد شناخته میشوند، نوع سینگل مد امروزه با تارهای نوری OS2 و قطر 900 میکرون و مالتی مد با تارهای نوری OM4,OM3,OM2,OM1و نسل جدید تر +OM4 با قطر هسته 50 و 5.62 میکرون ارائه می گردند. تا به امروز موارد بسیاری از خطاهای انسانی در نوع انتخاب فیبر توسط کارشناسان و یا کاربران بخش فناوری شبکه مشاهده گردیده
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انواع کابل فیبر نوري بر اساس ویژگی هاي محیطی Fiber Optic Cable

October 15, 2016
کابلهاي فیبر نوري بسته به محیطی که باید در آن نصب شوند در انواع کاملا متفاوتی تولید مـی شـوند. هـر چند که ماهیت تارهاي فیبر نوري درون آنها یا از نوع MMF یا SMF با پارامترهاي کمابیش مشابه اسـت. تمام انواع مختلف کابلهاي فیبر نوري را می توان در دو رده کلی زیر دسته بندي کرد: 1 .کابلهاي فیبر نوري جهت کاربرد در بیرون ساختمان(Grades Outdoor:) این فیبرها جهت ارتباط بین ساختمانها در خارج ازساختمان بکار می رود، حداکثر فاصـله اي کـه مجاز است این کابل در داخل ساختمان وارد شود 10 متر است . در این نوع کـاربرد از کابـل فیبـر نوري مدل Tube Loose
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ITU-T G.657 Bend-optimised Single mode fiber

August 11, 2016
Worldwide, technologies for broadband access networks are advancing rapidly. Among these, the technology applying single mode fiber provides for a high-capacity transmission medium which can meet the growing demand for broadband services. The experience with the installation and operation of single mode fiber and cable based networks is huge, and ITU-T Recommendation G.652 describing its characteristics has been adapted to this experience. Nevertheless, the specific use in an optical access network puts different demands on the fiber and cable which impacts its optimal performance characteristics. Differences with respect to the use in the general transport network are mainly due to the high
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Introduction to fiber coating

July 6, 2016
In General, fiber coating consists of primary coating, secondary or buffer coating, fiber identification, removability of coating. 1 Primary coating Silica fiber itself has an intrinsically high strength, however surface flaws reduce its strength. A primary coating must therefore be applied immediately after drawing the fiber to size. The optical fiber should be proof-tested. In order to guarantee long-term reliability under service conditions, the proof-test strain may be specified, taking into account the permissible strain and required lifetime. In order to prepare the fiber for splicing, it should be possible to remove the primary coating without damage to the fiber, and without the use of
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FIBER OPTIC CABLE CONSTRUCTION

August 4, 2015
Before any detailed discussion on how to handle optical fiber cable, some brief discussion of fiber and cable design is required. Eliminating confusion between the different terms, and providing an understanding of the cable construction will make handling the products less complicated. Fiber The cable cross-section in figure 1 demonstrates a two fiber cable for interconnect applications. The construction of the glass can be looked at separately from the design of the cable, as the fiber itself is constructed using distinct materials and is shipped by the fiber manufacturer as a finished product. NextGen takes the coated optical fiber and incorporates it into a multitude of finished
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Sharks and Sub Marine Cable

July 27, 2015
Sharks are not the nemesis of the Internet, says the International Cable Protection Committee (ICPC), which has released an analysis of the main causes of submarine cable breaks. Essentially, sharks and other fish were responsible for less than one per cent of all cable faults up to 2006. Since then, no such cable faults have been recorded, the organisation says. Sharks became the scapegoats for submarine cable failures last summer when a rediscovered YouTube video of a shark biting a subsea cable caused a media storm. A chance comment from Google that it was reinforcing its subsea cables with a Kevlar-like material
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