Main features of the JETnet system Proven concept. The JETnet microduct system of Draka Comteq is a well-established system used on a worldwide basis by many reputable companies. JETnet continues to maintain the customer s highest demands for quality and life expectancy. Thousands of kilometres have already been installed using the JETnet concept. In addition, the reliability and long term durability of the JETnet system is demonstrated continuously at a test bed facility constructed adjacent to the Draka Comteq production site in Delfzijl in the Netherlands. Here a complete installation methodology and testing of the duct network installation is available. The test bed demonstrates the fact that the JETnet system continues to function correctly, even after having been submerged for many years in extreme moisture and mud like conditions. Draka Comteq - Holland Concept The JETnet system is a simple cable and duct system using and mini cables. High Density Polyethylene (HDPE) provide a continuous path for the outside plant rated mini cables. Jetting technology allows installation distances of up to 2.5km in a single blow, reducing installation costs and allowing flexibility in design. Small component size reduces the required duct infrastructure with up to 5x 96 fibre cables able to be installed in a single 40mm duct. Connections are made on an as required basis using anywhere anytime splittable branch connectors that require no interruption to existing services. Microjet Cable Blowing Microducts can be installed loose in protective ducts with or without resident cables or can be provided pre-loaded into HDPE ducts ready for new installations. Indoor versions using flame retardant are available, which allows JETnet t to be extended in High-rise buildings all the way to the customer without intermediate jointing. All JETnet t components are available on a one stop shop basis, delivered to site ready for installation. Y Branch Connector
Flexibility in Installation The JETnet system can be rolled out in 2 or 3 phases of construction. 2 Phases - Pre-installed in protective ducts 1. Laying the protective ducts with pre-installed 2. Jetting the cable Advantages: Faster installation, no need to install the More economic, the insertion of in the factory is easier 3 Phases Loose 24x 4mm Pre-load 40mm duct 1. Laying the protective ducts 2. Jetting the 3. Jetting the cable Advantages: Maximal spread of the investment over time Minimal risk of damage during the first phase of construction Different microduct combinations can be used in the same duct Less joining of required as only ducts need joining 950m Drum of 40mm duct Mechanical protection The protective ducts are not fully filled up with. By doing this, the are optimally protected against damage that may otherwise be caused by the use of heavy mechanical equipment in the area. If the protective duct is crushed or stretched by mechanical means, subsidence, stones or other obstacles in the ground, the have less chance of being damaged. The amount of mechanical protection in the JETnet concept is comparable with using steel armoured conventional cable. Actual damage test
JETnet Cables JETnet cables come in a range of sizes (1 to 144 fibres), construction (Gel and Dry core) and types (Single mode or Multimode). As well as protection provided by the protective duct and microduct, the JETnet miniature cable provides an optimal protection of the optical fibre against environmental influences. The cables comply with all national and international standards and recommendations for outside plant applications, i.e. IEC 60794-5. Moisture, vapour and humidity Moisture, vapour and humidity are the biggest threats to the expectation of life of an optical fibre. Because the protection against moisture is included in the construction of the cable, the JETnet system is not dependent on the water and vapour tightness of the, microduct couplers, protective ducts and duct couplers. A watertight insertion of the cable into the splice closure prevents the risk of water penetration into the enclosure through the. Loose Tube Cable Pollution and other aggressive materials The outer sheath construction of the JETnet cable protects the optical fibres against pollution and aggressive materials like oil and chemicals. Mechanical strength The JETnet cable protects the optical fibres against pulling forces 1.5x cable weight, crushing up to 1500 N/10 cm (Uni-tube cables) and kinking (bending radius 25x the cable diameter for the FTTH cables). UNI Tube Cable Design Flexibility In selecting microduct sizes, a range of cable types and capacities can be jetted, thus always ensuring sufficient fibre capacity no matter how diverse the usage of the customer may become. All changes in usage are easily achieved either by using the spare or by replacing the existing cable with that of a higher fibre count or type. Fibre capacity can also be increased by jetting in additional in existing protective ducts already containing other or conventional cables. 2x10mm & resident cable
Flexibility in capacity The available JETnet cable range is as follows: Number of fibres per cable 2-6 2-36 36-96 36-144 Microduct Diameter [mm] 4mm 7mm 10mm 12mm The number of JETnet per protective duct is as follows: 7x10mm in 50mm Duct Diameter protective duct 4mm 7mm 10mm 12mm 16/10 mm 2 1 25/19 mm 6 2 1 1 32/25 mm 12 6 2 2 40/33 mm 24 10 5 4 50/40 mm 42 14 7 5 63/51 mm 60 20 10 9 Branching technique Branching off is a specially developed technique and an important part of the JETnet concept. This technique makes it possible to connect businesses, homes and clients to main branch lines. After the branch-off is made, a direct microduct path is available to the building where the fibre cable can than be jetted in without the need of splicing in the field. The free space in the protective duct ensures that the microduct can be easily located and connected. Existing cables in other remain untouched. T Branch Option The fully dividable branch-off Y-connector can be placed fast and simply at any time and any place. No time-consuming filling compounds or glues are required. The branching technique guarantees minimum bending radii of the optical fibres to ensure optimal transmission. H Branch Option
Solid and proven jetting technology The high quality of the microduct and the simplicity of cable installation enable the jetting of the and the miniature cables to always run without complications, including those placed under extreme and severe circumstances. The jetting of the is also not adversely influenced by the make, material or age of the protective duct. In practice the jetting of the miniature cables will be positively characterised by the ease and speed of the jetting job, even in a microduct which has been installed many years before. The removal of old cables after years of service by jetting-out also runs easily without complications. Dirt and water can easily be blown out with sponges prior to installation of the cable. Superjet Microduct Jetting Agent Pulse Networks Ltd became the New Zealand agent for JETnet in 2005. They have under taken training both in Holland and New Zealand and offer sales and support to Network Operators and installation contractors. The following functions are available: Sales & Support Training for installers (JETnet Certification) Installation (Project build) For more information on the JETnet system contact info@jetnet.net.nz Design (Project design)
References - A sample of JETnet projects taken from around the world. Year Country Location Customer Project 2000 Netherlands Amsterdam EuroFiber 11 km link 2000 Canada Toronto 360networks Feeder in inner city network 2000 Sweden Linköping / Södertalje Local Authorities Thousands of homes 2001 USA San Diego / Phoenix 360networks Long haul installation over 685 km, record installation length of 8,4 km 2001 Germany Stuttgart Deutsche Telekom Start nation wide roll out infrastructure UMTS network 2001 Germany Frankfurt BT Ignite Feeder link 2001 Ireland Dundalk Eircom Feeder link over 16 km 2001 Belgium Antwerp Mobistar Feeder link over 10 km 2001 Sweden Pajala / Götene Local Authorities FTTH Hundreds of homes 2001 Norway Kristiansand, Arendal Agder Energi Net FTTH Hundreds of homes 2000 - Sweden Many villages Many local authorities Thousands of FttH connections onwards 2003 - USA Port St. Lucie, FL Home Town Cable TV In total 30.000 houses FttH onwards 2003-2007 Switzerland Geneva CERN Nuclear Research The Large Hadron Collider Project, 2700m in one shot 2004 Netherlands Terneuzen Dow Chemical Jetnet with chemical resistant protection 2005 Netherlands Limburg ProRail 50 km pilot along railroad 2005 Sweden Various Communities Telia Sonera FttH network through Sweden 2005 Ireland Dublin Magnat FttH network 3.000 homes 2005 New Zealand Wellington TelstraClear Long Haul Link 2005 New Zealand Auckland Citylink FTTB Access Network 2006 New Zealand Auckland TelstraClear FTTB Access Network 2006 New Zealand Paihia Far North Council Long Haul Fibre 2006 Netherlands Amsterdam Citynet FttH network 45.000 homes 2006 Denmark HEF Backbone 400 km 96OF 2006 Ireland MAGNAT FttH network 3.000 homes