Use plastic bushings on conduit ends to avoid damage to the cable during the pull. For our data center infrastructure products, we have plenty of support available for you. Violation of the temperature operating range can result in excessively high attenuation. Test jumpers must be of the same fiber core size, performance and connector type as the cable system (e.g. If there are too many bends in the run then you may consider installing junction boxes in lieu of bends. It’s from here that you’ll run the fiber optical lines into your house for phone, Internet and TV. Syracuse, NY 13221, P. 800.913.9465 Pulling Lubricants Friction between the outer jacket of the cable and the conduit creates unwanted tension on the cable while pulling the cable through the conduit. Condensation can also form in the bag the fiber is packaged in and find its way under the cap. Try to design the conduit run with a few bends as possible. Extreme caution should be observed when performing an aerial installation. This technique prevents twisting in the cable. Cap or seal water blocked cables. Always have a pull-eye added to a cable longer than 100 feet. Warranties don’t cover mishandling of cabling. Do not rotate the connector when making the connection. For loose tube and ribbon cable this is typically specified for an installation temperature of -30C to +75C. The vertical attachment point should be carefully chosen to comply with the cable’s minimum bend radius while holding the cable securely. When installing optical cable, what you don't know could really hurt you or damage your cable. When installing fiber optic jumper cables and copper patch cords from the patch panel to active ports within the same cabinet, use a combination of horizontal and vertical cable management to route cables from the left side of the patch panel to left side active ports, and the right side of the patch panel to right side active ports. If there are too many bends in the run then you may consider installing junction boxes in lieu of bends. Reference the Port Map document to determine if a trunk is to span into two separate enclosures. Proper techniques depend on the cable design and the location of the installation. There are only two per trunk, one per side. Install vertical, unfilled, loose tube cables with loops to prevent the fiber from slipping to the bottom of a vertical run. This would be three years in the making for myself, so it couldn’t have come soon enough! Our architects are happy to provide free design assistance for full scale data centers, colo-space, and upgrades. In order to get an accurate measurement of the fiber optic cable, the loss of the two reference cable has to be “zeroed” out (0 dB) or subtracted from the total loss. When a steel messenger wire is used for aerial installation, avoid zigzagging the messenger wire from one pole side to the other. Loop vertically installed loose tube cables. CABLExpress manufactures high-performance data center cabling infrastructure products. If insertion loss suddenly increases with an adapter or connector, the cause may be dirt. When securing fiber trunk cables to enclosures, racks, or cabinets, only use zip ties on the trunks’ furcation points. Implementation of these outlined fiber optic cabling installation best practices will ensure the best environment for proper functioning of your cables. Patch or jumper cables should not be used as “trunk or backbone” interconnections or deployed under the floor or in ladder racks or basket trays. The ducts and innerducts should be kept free of debris and maintained watertight at all times. If installation will be delayed, store your purchased cabling products in their original packaging in a safe area where they will not be damaged or misplaced. Fiber optic cables shall be identified in such a way to distinquish these cables from wire or coaxial cable. figure 1. Cleaning fiber optic transceivers. It also allows easier location of a specific cable. TIA-606-C documents the official standards for cable colors. Cable clamps should be installed manually with gentle pressure. DO NOT rotate back-and-forth or round-and-round because this could grind debris into the transceiver. Safety precaution – do not look into fiber without checking status. Remove all product from the cardboard shipping containers before bringing them into your data center. Cables in vertical installations that are longer than the vertical rise limit must be tied off at distances less than this limit. Ensure that the proper cable length has been installed before cutting off excess cable. For extensive work with fiber optics, safety glasses with IR filter is recommended. Use a wet wipe to loosen particles on the end of the cable connector using a circular or straight wiping motion while using care to avoid wiping over area of pad that has already been used. Service loops allow you to pull excess cable or fiber into a location where you have experienced a problem. Accessibility considerations are critical when mounting and/or installing cables. Such marking will alert electricians to the nature of the cable. If future cable pulls in the same duct or conduit are a possibility, the use of innerduct to sectionalize the available duct space is recommended. Buried cable installations. Avoid placing fiber optic cables in raceways and conduits with copper cables to avoid excessive loading or twisting. After the fiber optic cable is installed into a duct or innerduct, end plugs should be installed to provide an effective water seal. For cables using aramid yarn alone as the strength member, the jacket can be removed to expose the yarn. ACCEPTABLE. Familiarizing yourselfwith Standard 301 is a smart step to avoid such problems.Up until a little over a year ago an installation standard for optical cable didn't exist. Innerduct provides a good way to identify fiber optic cable and protect it from damage, generally a result of someone cutting it by mistake! Protect fibers and buffer tubes. Keep these data available to those who will perform maintenance and troubleshooting. Fusion splices should therefore not be used in vaults. Allow for thermal expansion and contraction. For cables using aramid yarn and an fiberglass central member, a pulling grip should be used. Your service box (Optical Network Terminal or ONT) is the device that connects your home to the AT&T Internet system. Cable sag increases in warm weather or when power cable is passing heavy current. Mark cable as “fiber optic cable” in all locations in which it can be easily reached. Check continuity and attenuation. Before plugging into a port or patch panel, the installer must inspect the surface of the fiber optic glass end point (ferrule) with a microscope and, if needed, clean the connector with a one-click cleaner. Anticipate obstructions. For copper, use horizontal D-ring style cable managers in a 1U or 2U footprint. Know and observe the maximum recommended load rating of the cable. Lubrication reduces the pulling load and the chance of breakage. Obtain all required fiber cable installation authorizations and permits along the route. Step 1: Connect the AT&T Fiber℠ Service Box. The finalized layout and port counts are critical to an architect’s effective design. It’s true that fiber optic cable, based on optical technology to carry information between two points, have become increasingly important in fiber optic Rope off or otherwise isolate the area of cable installation to prevent access to unauthorized or untrained personnel. The practice of fiber optic cable installation has become much more common than ever. Cable Blowing or Jetting in Duct Applications. Copper also can have negative performance results from crosstalk when too many strands are bunched together in a bundle or tight space. Installation of these cables is different. For example, proper technique is pulling a cable into a conduit. Loose tube cables can be more forgiving of abuse than tight buffer cables. All strength members should be gripped equally to ensure proper distribution of tension. www.cablexpress.com. Installing Fiber Optic Cable. However, real-life applications often require the cables to turn in different directions from source to destination. Conduit runs should be limited to 100 feet, with no more than two 90-degree bends between pull points or boxes. Do not mix copper cable and fiber cable in the same ducts or trays. The minimum air pressure in the duct should be 100 psi with 125 psi recommended. The cable weight in an unsupported vertical rise shall be less than the specified long term operating load. Segregate or isolate the work area. Before the start of any cable pull, all ducts and cable vaults should be carefully inspected for damage or deterioration, and to address any safety concerns. Do not use a back and forth scrubbing action. On runs over 100m, use proper lubricants and pull from the middle out to both ends. Check the continuity and attenuation of the cable before each operation. 50/125 μm FX2000 jumpers for a 50/125 μm FX2000 optical fiber system) and shall be one to five meters long. Stretching of the rope is undesirable for several reasons including that it makes for a very unstable pull, and takes away control from those doing the pulling. The cable is placed on the ground in a figure 8 pattern. The design’s intent is to minimize future errors due to snags, awkward cable access, slack, and unprotected connections in trafficked areas. Exceeding this limit can result in fiber breakage, excess attenuation, and, in loose tube cables, fibers sliding from cables. If the run is long, or if you anticipate the possibility of additional future pulls; Then you may want to install a conduit of up to 4″ (or greater). If you don’t already know someone here, we’re glad you found us and happy to get to know you! Never look into a fiber, cable, or connector unless you know for sure that there is no laser light in the fiber. Cable blowing. For direct burial installations, the cable should lie flat in a trench, free of any large stones or boulders that may deform the cable. This pattern is large, at least 10-20 feet from top to bottom of the pattern. Instead, make sure it is kept on one side as much as possible. Cap off or seal the ends of cables with water blocking gel or grease. Ducts and innerducts should be sized to meet present and future cable installation requirements. They offer better bandwidth, ideal for long-distance connectivity, more reliable, and capable of withstanding all typical environmental stresses expected in their application. On really long runs, pull from the middle out to both ends. Excessive pushing will cause the cable to cork screw in the duct or fold over which will damage the fiber. Pulling and reel locations should also be set at corner vaults where possible. Learn more about how and why to buy from us here. Fiber cables can and do jump from unmonitored pulleys. Install a cable in locations in which the temperature range imposed is within the temperature operating range. Use an air compressor with a minimum of 375 cfm. All vertical cable must be secured at the top of the run. The tip of the fiber connector, where the fiber optic glass protrudes, is the most common area for damage to occur. We are a division of CXtec, so you can order product directly from the account manager you’ve always dealt with at CXtec, CABLExpress, Atlantix, or TERACAI. Proper cable lubrication is designed to reduce the tension on the fiber optic cable. Fiber optic cables have Kevlar aramid yarn or a fiberglass rod as their strength member. Pleasanton, CA 94566 ENDFACE … The layout should include the destinations of the fiber trunk assemblies, referred to as “Trunking Locations.”. If possible, use an automated puller with tension control or at least a breakaway pulling eye. It may be mounted on a wall in the basement, garage or utility … The ONT receives and transmits the network signal to your fiber optic capable modem, and in turn, your modem connects to your router. Service loops are created when additional length is added to a cable for contingencies. Feb 27, 2016, Fiber Optic Patch Cables Tutorial This will ensure you do not damage the assembly when pulling on the fiber optic “legs.”. The architects will use this detail and additional information gathered, to build the cabling infrastructure design. Choose an optical grade lint free swab that fits easily into the transceiver barrel. In general, fiber optic cable can be installed with many of the same techniques used with conventional copper cables. An installation partner should provide close-out documentation as defined by the scope of work (SOW) after project completion. Corning Optical Communications Outside Plant Fiber Optic Cable Product Ordering Guide | LAN-1032-AEN | 2 Corning’s invention of the first low-loss optical fiber ignited the critical spark that began a communications revolution that forever changed the world. Be sure to manage service loops using Velcro in a circle with at least four mounting points. You should pull on the fiber cable strength members only. Safety Precautions 1.1 Confined Space Precaution 1.2 Lead Exposure Warning 1.3 Cable Handling Precautions Corning Optical Communications cable specification sheets are available which list the maximum tensile load for various cable types. Indoor fiber cables and outdoor fiber cables generally classify fiber optic cables. Confirm the document is up-to-date and reflects any possible last-minute changes that may have occurred under the floor or in overhead conveyances. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable will be deployed. The maximum pulling tension for stranded loose tube cable and ribbon cable is 600 lbF (2,700 Newtons). Monitor the supply reel. On long runs, use proper lubricants and make sure they are compatible … Plan the Installation. This can be accomplished by weaving the strength member into the fingers of the grip, and then taping it together. Never force a connector onto an adapter. Underground conduits, if newly installed, should be a minimum size of between 1.5″ to 2″. For fiber optic cable, use horizontal finger style with front cover cable managers in a 1U or 2U footprint. The Race to 400Gb: The Data Center's Fiber Optic Infrastructure Challenges, Don't Get Left Behind: Cabling Designs You Can Trust to Support Speeds of 40G to 400G, Simplifying Fiber Optic Cabling with a Multi-Path System, Conflicts in Data Center Fiber Structured Cabling Standards, Understanding the Fibre Channel's First Gen7 Switch Portfolio (and How to Cable It), TIA-42 Telecommunication Cabling Systems Engineering Committee 3rd Quarter Conference Preview, Proper care during installation and maintenance, Transposed, reversed or split pairs, grounded conductor. Fiber optic cable is usually (but not always) installed in an innerduct that provides mechanical protection for the fiber optic cable. Do not use a blade to slit the mesh. Use extreme caution when removing the pull eye. Be aware that solar heating due to sunlight exposure can increase the cable temperature well above the ambient temperature. Installing these cables differs from traditio nal methods. It’s important to match any staggers to the correct equipment. Make sure your fiber cable is long enough for the run. It must also be strong enough to meet the NESC requirements and support the loads given in Table A without exceeding 60 percent of … While inconvenient to remove, pull-eyes protect your connections and your warranty. Use plenum rated cable where it is mandated, etc., etc. Fiber optic cable has an installation minimum bend radius value. Be sure to “firestop” all cables that penetrate a firewall. The lubricant has to be compatible with the cable jacket material. Even though your fiber connector will have a protective cap of some kind on it, any cover can attract dust as it moves through the air to settle on the tip. Train installation personnel. In high-fiber-count cables (greater than 24 fibers), installation of a pre-connectorized cable may not be possible due to the conduit size that would be required. Leave cable and fiber service loops everywhere. Your label numbering scheme should match the TIA-606-C published standards for all jumpers and patch cords, labeled by: Using the standard provides consistency and a format that should be recognizable to installers working in your data center. Do not allow vehicles to drive over a cable. Leave the protective thermal wrap … Whether service loops will be managed on the sides of a cabinet vertically or at a specific rack unit(s) horizontally is determined by the data center operator. Pushing can result in violation of the bend radius. The pulling tape should have a rating for greater than maximum anticipated pulling tension. Follow the following step by step guide for installation of fiber optic cable: Step One. For all other applications use ONLY Velcro. It can be helpful to allow movement of patch panels inside the cabinet with service loops for both fiber and copper, if growth is expected. You can get the innerduct with pulling tape already installed. Follow the blowing equipment suppliers blowing distance recommendations; 3000 to 6000 feet is a typical blowing length. Sign Up Now! Know and observe the maximum vertical rise distance limit. Make as-built data logs on all cables. Also, avoid excessive twisting or stress on pre-terminated cables during installation. Pull, do not push cables. Maintain proper air flow to “blow” the cable verses “pushing” the cable. Bare glass fibers can cause splinters which are very difficult to find and remove. You want to remove the contaminants prior to connecting. Future plans for change will be discussed, as well as the bandwidth required. You should pull on the fiber cable strength members only! Mostly, telephone operators like AT&T and Verizon provide the fiber optic cable network. When pulling the cable off the reel onto messenger mounted cable blocks, special care should be given to size and location of the 1st and last pulley. These guidelines help improve operations by minimizing the risk of failure due to inadequate planning, mishandling of fiber cabling, improper testing, and reducing installation time. Without this sectionalization, additional cable pulls can entangle an operating cable and could cause an interruption in service. Bonding and Grounding: Follow your company and local/national bonding and ground procedures when using fiber cable with metallic components. Always roll the cable off the spool instead of spinning it off the spool end. Indoors fiber optic cable installation can either be directly or using conduits or fiber optic trays. If needed, short service loops (three to six feet) are helpful when trunk lengths are cut using estimated lengths. A crash test should be performed to determine the maximum push force. To minimize cable tensions, reel vault locations should be set near the sharpest bend locations. A fiber optic cable should be tested three separate times during an installation: on the reel, the splicing test, and the final acceptance test. This keeps cable tight and prevents unraveling. Try to make it in one pull. Take inventory of all components received onsite to match to the bill of materials provided with the design. Using zip ties on the fiber optic jacket directly can break the fibers. F. 315.455.1800, info@cablexpress.com Installing ADSS Cable with the stationary reel method A pulling rope is attached to the cable with a swivel pulling eye and a wire grip. Avoid placing cable reels on their sides or subjecting them to shock from dropping. These guidelines on fiber optic cables underground installation aim at avoiding any damage to existing underground infrastructure such as existing FOC, sewage or water pipes, electrical cables or other telecommunications cables. Only remove connector and adapter duct caps prior to making the connection. Cable blowing air cooler. It is extremely important to take an accurate measurement when planning an order for a custom pre-terminated fiber optic cable assembly. The number of 90 degree turns on a pull shall not exceed 6 for aerial cables and 4 for underground cable-in-conduit. Dropped Ceilings and Raised Floors Cabling The fiber optic glass underneath the jacket performs best when running straight. Fax: 510-319-9876 You can eliminate 95% of the problems installers can encounter by simply creating this plan. The pulling eye (and associated cable netting) will protect the pre-terminated ends during the pull. Be sure to review this map with the other users in your organization such as the Facilities, Network, and Storage teams. But, if your area has FTTH capability, then the provider will run fiber optic cable to the outside of the home and will install an optical network terminal (ONT) on the inside, usually in the garage or the basement. Proper training reduces expense through reduction of breakage and excess attenuation. Use the figure 8 technique. Trunks are custom-built and cannot be returned. A set up with multiple blowing machines may be required. Most pre-terminated systems today do not require additional cable added for service loops. Never exceed the cable bend radius. Confine fibers and buffer tubes in protective structures, such as splice trays and cable end boxes. It could also be located in the basement or in the garage. Mark cable as “Fiber Optic Cable”. This is something you can’t do yourself. Fiber is stronger than steel when you pull it straight, but it breaks easily when bent too tightly. Never directly pull on the fiber itself. If you don’t have any idea how the process for installation works, better ask assistance from professionals. If the trunk does plug into two separate enclosures, plug the trunk connectors into the specified ports first, then secure the furcation or breakout point. We need to install a fibre cable from your street to your property and we want your fibre install to have as little impact on your property as possible. Don’t use zip-ties, use Velcro! Cable blowing. Poles must be prepared for the installation of the pulleys and the final cable hardware before cable pulling begins. Record all required fiber optic facility details, including proper route drawings, fiber assignments, loss readings, OTDR traces, etc. If your inventory is short, or product is damaged, you will not be able to get replacements overnight. Create a detailed, written plan of installation. If possible, use an automated puller with tension control or at least a breakaway-pulling eye. This allows for the addition of new cables and later removal of them when they are no longer needed. The plan should include equipment and supplies, fiber cable specification, location of equipment, testing requirements, data forms for testing, personnel experience level and assignment, installation methods, identification of potential problem areas, safety issues, etc. Test results should be recorded in the memory of a Fluke or comparable test equipment. Fibers and buffer tubes do not have sufficient strength to resist breakage due to normal handling of copper cables. As fiber optic cable is sensitive to excessive pulling, bending and crush forces, much care shall be taken to avoid cable damage during its duct installation. Never exceed the maximum pulling load rating. Fiber optic cable installation is not an easy task. The following fiber cable installation guidelines are recommended as best practices pre-, post-, and during installation of CABLExpress Skinny-Trunk® products in accordance with the TIA-942 Data Center Standard and our own experience! Storage and installation of OFS fiber optic cable is limited to the temperature ranges listed in Table 2. A fiber-optic cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable, but containing one or more optical fibers that are used to carry light. The exorbitant bandwidth and connectivity demands for applications like data center interconnect have driven the development of fiber-optic cables with extremely high fiber counts. CABLExpress is dedicated to delivering quality in every product we provide – and every interaction you have with us. Optionally, the jacket can be tied into a tight knot before pulling. Leave service loops. Mistakes in length of the trunk or connections due to changes could be costly for you. attaching the fiber optic cable that needs to be tested between two reference cables, one attached to the source and one to the power meter. The electric spark generated by a fusion splicer can cause an explosion when flammable gases are present. For tough installations, use loose buffer tube fiber cables. This loose end is pulling into the next section of conduit or duct. Number of 90 degree turns. The route to getting Fibre Broadband. The yarn should be tied in a knot with the pull rope, so that the jacket will not be inadvertently used for strength. Comply with vertical rise limits. Never twist the fiber cable. Silicon Valley's fiber optic products distributor. They can interfere with access to the cabled hardware units. When pulling the fiber out of a section, coil the cable on the floor in a figure 8 pattern to avoid twisting. 4.1 Aerial fiber-optic cable plant must be stiff enough to keep the fiber stress within acceptable limits under the loads given in Table B. Feb 27, 2016, 269 Mavis Drive The design’s goal is to maximize efficiency using loss budgets productively. This is done by connecting the Never exceed the maximum pulling load rating. Always make sure that access to other major components is not blocked. Test results should be provided, as previously stated. This map should include the cabinet placements, patch panels, hardware, port-counts, trunking locations and power access connection points. Typically this is when the ambient air temperature exceeds 80˚F. These materials can flow out of the cable, causing maintenance problems in cable end boxes. Ultimately, this is best determined through a discussion of specific applications between you and your design architect. CABLExpress has pre-engineered staggers for all common hardware types with the intent of creating a tidy, slack-free installation to minimize accidental pulls and create an aesthetically pleasing result. Keep in mind that “pinching” the fiber optic cable also damages the glass, thereby ruining performance. Monitoring the supply reel during installation is necessary to prevent violation of minimum bend radius. Identify the exact fiber optic cable route and ensure that it meets all installation specifications. Use proper tools and techniques. Your manufacturer’s specification sheet should be consulted for specifics. This product type is designed to operate optimally within racks and cabinets at short lengths. The testing documentation package should also include the following: Identification of field test instrument used, including manufacturer, model, and serial number, and date of most recent calibration of the test instrument. Intermediate cable attachment points however are recommended for optimum performance. Always make allowances for power cable sag due to weather and current conditions. In outdoor installations, a common practice of 2.5 foot sag for 150 foot span is good for thermal expansion and contraction. The person may stop the cable pull from time to time to prepare and apply more lubricant. In the event product is damaged due to handling at your facilities, you will be responsible for the cost of replacement. Divide long pulls into several shorter pulls, using the figure 8 technique for storing cable at the intermediate locations. Confirm with the design or Port Map document if trunking is to come from both sides of the cabinet (left and right) or just one side of the cabinet. These custom assemblies cannot be returned unless out of box defective. You should always clean the connector and adapter before plugging them in. The installation partner should show modified cable routes of all backbone cables, backbone cable pathways, and cable trunks. Instead, use a pair of electricians scissors or diagonal cutters. Cables should be tested after shipping. If your area has the fiber optic network, then you should also have a fiber distribution box. Best practice: Copper and fiber trunk/bulk runs should be separated in either the same tray or run in separate trays. For longer lengths, label your trunk cables at both ends with length, origination, and destination information. They are black in color. Feb 27, 2016, Multimode Fiber and Multimode Fiber Optic Cable Tutorial Fiber optic cables should be placed in their own dedicated ducts or trays. Test results should be provided both in soft and hard copy. The furcation point is designed for this, as it has a metal sleeve to protect the fiber. Is up-to-date and reflects any possible last-minute changes that may have occurred under the loads given in Table B accurate... Critical paths cable network and attenuation of the pattern to ensure proper distribution tension! Break in the NECA 301-2004 Standard for installing and Testing fiber optic cables in vertical installations that are than... – no food, drink or smoke in any area in which it can be useful in the SOW be! 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