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Case Story: Järvenpää’s Social Service and Health Care Center


It was worth to try the solution offered by Orbis

Järvenpää city with 40 000 inhabitants have decided to be a pioneer in the social service and health care reform in Finland: the new Social and Health Center combines at least ten separate units under one roof. The building has been recognized by its customer focused design. It also contains the latest technology in solution for Indoor Coverage. Orbion Consulting managed this solution, both design and construction.

Järvenpään SOTE-keskus

Almost finished Center will soon open doors for employees and almost thousand clients. Still open ceiling tiles reveal the huge number on cables and technology needed for the functionality and safety of the Social Service and Health Care Center.

Heikki Kankkunen from Orbion, the indoor coverage system designer and senior consultant. Broadband Indoor Radio Network installed by Relacom covert TETRA and also all other mobile operators in one physical network. “There is a coordination, so different devices do not interfere with each other” says Kankkunen. “Even the LED lamps can make interference on the radio frequency.”

Heikki Kankkunen Orbion Consulting Oy:stä on vastannut kuuluvuusverkosta

Conflicts within the requirements

Paneeliantenni Järvenpään SOTE-keskuksessa

Since 1987 Kankkunen has been working with RF technology and he probably knows better than anyone else about implementation of an indoor coverage network as well as the requirements behind the solution. “According to the architects plan, the big antennas should not be sticking up from the ceilings” – remembers Heikki.

"On the other hand, the broadband network requires them." Orbis provided an antenna pattern which was possible to install discreetly in the ceiling by the mounting structure, so that the emerging section of the antenna is not bigger than a surveillance camera. "The architect was reportedly very happy," smiles Kankkunen.

The other requirement was an absolutely reliable TETRA network in every corner – including corridors and cellars. The Center’s personnel will use TETRA as a daily tool. In addition, TETRA’s coverage is also required for the Emergency services. “No client is allowed to enter the building before the fire inspection is approved,” says Kankkunen, who has examined hundreds of measurement results. “The complete solution was tested and TETRA works perfectly in every place – also in elevators.”

On the opposite site of the coverage requirements there are regulations from authorities. Because Tukes (Finnish Safety Agency) defines maximum radiation of a system, challenges in coverage cannot be solved only by increasing the power. “Compared with the fixed cabling, the planning of a wireless data transmission is closer to probability theory,” – says Kankkunen. “The final result can be never perfectly predicted.”

The lead walls of the Health Center created also difficulties. Fortunately, Kankkunen has a wide experience with healthcare sites, so that surprises were avoided also this time.

The economic solution

Both the commercial mobile phone and the Public Authority network’s backbone in the building are base stations of three mobile operators (DNA, Elisa, TeliaSonera) and TETRA. The power from base stations is distributed by passive dividers to the antennas mounted in different floors and staircases. The parking hall in the basement is operated by a leaking cable.

“One multi-operator network which also covers TETRA, cut significantly the costs of installation and maintenance compared to separate networks,” tells Kankkunen about the benefits of the broadband system. “In addition, network that extends up to 2.6GHz frequency is designed to covert the future requirements without any modifications.”

Kankkunen has a clear opinion about the role of high quality components. “The RF network is just as bad as the worst component in it,” he says. “If just one part in the installed network does not work, it is not possible to come afterwards to fix it in a house which is otherwise fully in use.”

The consulting partner

Kankkunen has a wide experience and knowledge about design and implementation of indoor networks. The components for Järvenpää’s center he chose from the Orbis’s product portfolio, because he appreciates the wide assortment, quality products and a good knowledge of their use in practice. “Good products and a good customer service is the Orbis’s trump,” he says. “You can call them any time and the question will always be answered.”

Valuation continues to the other side of the table, so that Orbis sees itself to be more than just a supplier for companies such as Orbion Consulting. “Co-operation with Kankkunen is not so much a selling process, but we share product knowledge and technical support,” says Jukka Korhonen, Account manager from Orbis. “We want to stand out as a key partner, who openly tells about what you can make of the products and for what they are suitable – also where they are not.”

Paneeliantenni Järvenpään SOTE-keskuksessa

Everyone wins

One special feature of Järvenpää’s Center is that building was completed ahead of the schedule and under the budget. Korhonen from Orbis is proud of picking up the right components for the Indoor network solution. “From the application we receive valuable knowledge about the functioning of the components for designer, installer and for us,” he describes. “We provide the feedback also for our manufactures, so that everyone makes benefit.”

Also Heikki Kankkunen from Orbion Consulting is satisfied with a successful project. “During a year I had time to control model installation, inspections and measurements,” he remembers. “The result shows that this special solution from Orbis was a completely right decision.”

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Fiber optic to the living room in detached house


In the area of Uusikaupunki city Vakaa-Suomen Puhelin, the local telecom company, is building a fiber optic network to residental areas. The thick black network trunk cable is brought as an undergroung cable or as an aerial cable to the outerwall of the house.

Vertek Oy is the subcontractor for the network installation. Vertek's installation manager Aki Salo says that the rest cabling route to the indoors is easier to install using a thinner and more flexible indoor cable, because the cabling path can be narrow and winding. Ivory colored and flame-resistant cable also looks better.

On the one end of the cable is an FTTH box in which at Orbis's factory connectors are assembled and they are installed to the adapters. The other end of the cable has a free 30-meter-long tail, which is spliced to the trunk cable in the outer wall. For the advantages of semi-assembled box is that there is no need to handle the optical fiber in the apartment. For example, pieces from cable's peeling can be dangerous for kids or pets, who keenly are wondering the installation process. "In addition, industrially manufactured quality is sure to be just as good, if not better, than scplicing made in the living room" - Salo says about installation conditions.

The product has been working perfectly, the end-customer and installer are satisfied with the result.

Orbis huoneistokotelo

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Case Story: The Tunnel of Tampere


Tampereen Rantatunneli - Ulkona

The 2,4 km long Rantaväylä tunnel which is connecting east and west sides of Tampere city in Finland will be soon opened for traffic. From the beginning, the public opinion has grown in favor and against the major project. Contractors are constantly under the magnifying glass, so everything has to work properly from the outset - also the mobile network.

Empower Oy is a conglomerate company, which data network division is responsible for the implementation of indoor mobile coverage solution in Rantaväylä tunnel in Tampere. The solution allows three carrier networks with a booking for one future operator – also auto radio should be audible inside the tunnel. Field Manager Kimmo Eliander was assigned to the responsibility of the construction-site for two-and-a-half-months.

"In general, we build networks on masts and attics, but now we went underground," says Kimmo. "The tunnel had been excavated and the cable tray had been put in, but otherwise it was dark inside, wet floor and ground looked like a potato field."

Network first

The reason why the indoor coverage technique had to be installed early on is very simple: the controlling of a multi-contractor project could not work properly underground without mobile network coverage.

"Our partner provided us a scissor lift on large wheels”, -tells Eliander. “However it was not very steady on the uneven floor, it helped us to set up the cable.”

The 1-5/8” RF cable, which hangs on the ceiling of each lane, is the heart of the indoor network system of the tunnel. "Leaky RF cable which provides such a high capacity is quite chunky," - laughs Eliander, who has a piece of wrist thick cable in his office token as a memory. “Two kilometer cable reels were huge.”

Tampereen Rantatunneli - Tunnelissa

Deeper cooperation

Both the RF cable with supplies and the fiber optic network were built of Orbis’s components. "Our portfolio met this case unusually well," describes Orbis’s Account Manager Pasi Hopponen, who has long history of cooperation with Kimmo. "Not every component is valid for multi-operator network, but the customer did not have to shop around, because he got everything from us."

Over the years the customer relationship between Kimmo and Orbis’s Pasi has almost scrambled into a friendship, and issues are told straight out. "As it should be," - says Kimmo. "No need to be cap in hand like in the bank."

Tampereen Rantatunneli - Konehuone

Where the value comes in

Eliander thinks seriously about the reasons for deeper cooperation. “Orbis has a little bit better products and deliveries work properly” – he says. “In addition, products have been tested in cooperation with the client, listening to the suggestions from the field.”

The value provided by such a supplier as Orbis, includes time-saving details – for example, suitable equipment for installation. Pasi from Orbis says: “Customer knows a lot, but we bring in the fine-tuning.”

Orbis’s account in the Tampere tunnel project is not just about supply of materials. “We also rented measuring devices from Orbis for testing the ready-made network. The client requires measurement results for approving the project” – says Kimmo. “In this kind of a place, if something happens, the network connection must operate without fail.”

Once-in-a-life-time project?

The biggest Eliander’s work project before Rantaväylä tunnel in Tampere was the business center Ideapark. 

“In general, indoor coverage network is used in shopping centers, parking garages and in new energy-efficient houses,” –he says. “Tampere tunnel has been a different and challenging project for building this kind of a network.”

Kimmo does not think that there will be another project like Tampere tunnel, at least not in Tampere. “It is great if you can leave your own fingerprint on such a huge project” –says Kimmo. “The most important thing is that network is operating well and its users are satisfied.”

Tampereen Rantatunneli - Eliander

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3D printing enables Orbis’ cable assemblies with 48-96 fibers


When connectors are industrially added to the multi-fiber optical cable, a structure that separates the fibers from each other and also forms a strain relief is required. The component is called “Fan-out”. Orbis has started manufacturing 48 and 96 fiber optical fan-outs with a 3D printer.

250 um fiber optical cable, which is peeled and separated from the trunk cable, is protected by a pipe, which means that threaded thick jacket is added on it.  For example, 2 mm diameter tube protects the fiber from handling during on-site installation, while the 0,9mm tubing is used at the factory assembled cross-connection panels.

When there are more than 48 fibers and the piping diameter is 2mm, the fan-out becomes clumsy and heavy; and no suitable solution has been available on the market. Due to the new 3D printing capability Orbis can design the fan-out structure, depending on different needs and purposes. Fan-outs, printed from thermoplastic material, are recently tested and developed, so that serial producing of fan-outs is now available.

Heikki Saukko, who is responsible for Orbis’ R&D comments: "With 3D printing possibilities are endless in our industry, just only thing we need to figure out is where it could be used.” Saukko continues: "For example, in the local fair in early February the new Launch Box we represented has also elements made by 3D printing."

Panel with multi-fiber cable assembly is suitable for the indoor use, which means it is halogen-free and made from fire-resistant material.

3D printer can produce different color products, and maximum size is A4 paper format.

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OptoBoa carries information and power


The Finnish harbor crane manufacturer Konecranes is well-known because of its high quality, which is also required from the suppliers. Orbis’ specific deliveries include 3 meter long Orbis OptoFiber jumper cable, which contains both fiber and copper conductors.

Why do we need a jumper cable nick named "OptoBoa", which is an arm thick, weather-resistant, extremely heavy and on the both ends has 15 x 20cm sized modular metal connector? The answer was received from the city of Hyvinkää at Konecranes' design department.

- Jumper cable belongs to a remote-controllable harbor cranes and to the gripper shuttle between lifting mechanism and containers. The gripper has to be replaced sometimes due to maintenance and failures. Keeping ships in ports is expensive, that’s why we want that connections happen quickly and surely. Normally, operating current and control signals, required for gripper systems run in separate cables. As a part of continuous product development, we decided to combine them into one jumper cable, - explains Rami Ranta, electrical designer and author of the jumper cable.

Ranta says, that the new cable assembly was first used in semi-automated container cranes, delivered to Indonesia. They do not have the traditional control booths, and all operations are made from the Control room using various sensors and video image. Data transmission between the gripper, which weights thousands of pounds, and Control room requires effective digital control buses. The optical fiber has a superior capacity and reliability, because it is immune to disturbances from electrical cables.

Rami Ranta KoneCranes

OptoFiber jumper cable was the idea of electrical designer Rami Ranta. Ranta works in Konecranes as a designer of harbor cranes in Hyvinkää. (Photographer: Pentti Niemi)

Konecranes ordered OptoFiber – the cable assembly from optical fiber technology specialist Orbis Oy. Account Manager Pasi Särkkä says, that for example, it was important for the customer that Orbis’ factory is able to install connector modules directly to the thin fibers without splicing. However, OptoFiber implementation has enough challenges.

- The cable includes a total number of 42 copper and 12 very thin optical fibers. The weight of the 7cm thick rubber cable is increased by lead weights, so that cable does not swing in the wind. The optical fibers are inside protective tubes. So cable stripping is very precise thing to do, particularly with optical fibers. In order to obtain a sufficiently large bending radius for the optical fiber and enough leeway for connector installation in the cable ends, we added to the cable more than a 20 cm long screw threaded protective sleeve. Sleeve made from stainless steel is screwed tightly to become water proof, because OptoFiber must operate reliably in all conditions.

Author: Pentti Niemi

Orbis OptoFiber järeämmät työvaiheet

OptoFiber has modular connectors, in which wires can be grouped according to a purpose. For the copper are reserved 42 modules, and 12 for fibers. Sleeve made from the stainless steel needed to get the necessary bend radius for fibers and for the cable leaks. (Photo by Orbis Oy)

Orbis OptoFiber valokuituliittimien tekeminen

Making connectors to a very thin fiber optic cable ends is a very accurate handicraft. (Photo by Orbis Oy)

Painava OptoFiber kestää myrskytkin

OptoFiber cable is thick, rigid and extremely heavy, because it needs to withstand hard weather conditions. (Photo by Orbis Oy)

Konecranes Oyj

Nostureita ja kunnossapitopalveluita tuottava Konecranes Oyj syntyi vuonna 1994, kun Kone Oy keskittyi hissien valmistukseen. Yhtiö toimii 47 maassa, sen liikevaihto on noin kaksi miljardia euroa ja työntekijämäärä noin 12000. Pääkonttori sijaitsee Hyvinkäällä. Yhtiö on maailman markkinajohtaja teollisuusnostureissa ja kunnossapitopalveluissa. Satamanostureissa se on yksi kolmesta suurimmasta. Lisätiedot: www.konecranes.fi


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