AT&T Fiber℠ self-installation guide. Service loops are created when additional length is added to a cable for contingencies. Ensure that the proper cable length has been installed before cutting off excess cable. Fiber optic cables should be placed in their own dedicated ducts or trays. You don’t want your installer to pull a 200-foot cable through its designed route only to discover the wrong cable or the wrong end was pulled (see more information below in section titled “Don’t Pull Too Hard”). On runs over 100m, use proper lubricants and pull from the middle out to both ends. 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. 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. General Guidelines of the Optical Cable Corporation Installation Guide. If insertion loss suddenly increases with an adapter or connector, the cause may be dirt. Basic guidelines that can be applied to any type of cable installation are as follows: • Conduct a thorough site survey prior to cable placement. Cleaning fiber optic transceivers. Fiber optic cables have Kevlar aramid yarn or a fiberglass rod as their strength member. Do not eat, drink, or smoke in any area in which bare glass fiber is created. 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. Excessive pushing will cause the cable to cork screw in the duct or fold over which will damage the fiber. This pattern is large, at least 10-20 feet from top to bottom of the pattern. Indoor fiber cables and outdoor fiber cables generally classify fiber optic cables. Indoors fiber optic cable installation can either be directly or using conduits or fiber optic trays. Typically this is when the ambient air temperature exceeds 80˚F. These checks should be performed as-received/before installation, after installation, after splicing, and after connector installation. Failure to follow the same can lead to fatal consequences to them as well as people in the vicinity. Cable blowing. Service loops allow you to pull excess cable or fiber into a location where you have experienced a problem. Without this sectionalization, additional cable pulls can entangle an operating cable and could cause an interruption in service. Such marking will alert electricians to the nature of the cable. The swab should be gently placed into the barrel of the connector and rotate no more than one turn. Always have a pull-eye added to a cable longer than 100 feet. When installing optical cable, what you don't know could really hurt you or damage your cable. Try to make it in one pull. A crash test should be performed to determine the maximum push force. Underground conduits, if newly installed, should be a minimum size of between 1.5″ to 2″. Copper also can have negative performance results from crosstalk when too many strands are bunched together in a bundle or tight space. When all the cable is placed in this pattern, the pattern is lifted and flipped over, so that the loose end is on top. Condensation can also form in the bag the fiber is packaged in and find its way under the cap. Fiber optic links should show the measured attenuation values, as well as the limits against which they have been tested, and the link length in a report or database. Comply with vertical rise limits. Be sure to review this map with the other users in your organization such as the Facilities, Network, and Storage teams. The tip of the fiber connector, where the fiber optic glass protrudes, is the most common area for damage to occur. All Orders Get 5% Cash Reward. Fiber optic cables have Kevlar aramid yarn or a fiberglass rod as their strength member. Our architects are happy to provide free design assistance for full scale data centers, colo-space, and upgrades. There are only two per trunk, one per side. Use the location layout to match any specific pre-engineered staggers to the applicable equipment into which they are being plugged. We will respond as quickly as possible. Leading cable manufacturers like Shenzhen OTS Cables Technology Co., Ltd.provide many types of state-of-the-art fiber optic cable that suit every customers' needs. And it needs special protection. Best practice: Copper and fiber trunk/bulk runs should be separated in either the same tray or run in separate trays. 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. Do not mix copper cable and fiber cable in the same ducts or trays. Use only cable/duct lubricants recommended by its blowing equipment manufacturer for optical fiber cable. After pulling, the knot should be cut off. A set up with multiple blowing machines may be required. This technique prevents twisting in the cable. The installation partner should show modified cable routes of all backbone cables, backbone cable pathways, and cable trunks. The swabs should only be used ONCE. Number of 90 degree turns. The ducts and innerducts should be kept free of debris and maintained watertight at all times. Never twist the fiber cable. The minimum air pressure in the duct should be 100 psi with 125 psi recommended. After the fiber optic cable is installed into a duct or innerduct, end plugs should be installed to provide an effective water seal. Follow Building Codes: Always obey all local, and national, fire and building codes. For fiber optic cable, use horizontal finger style with front cover cable managers in a 1U or 2U footprint. 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. Know and observe the maximum recommended load rating of the cable. If your inventory is short, or product is damaged, you will not be able to get replacements overnight. If there are too many bends in the run then you may consider installing junction boxes in lieu of bends. 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. Identify lightwave equipment that will be used and ensure that the equipment will function properly with the fiber cable being installed. They offer better bandwidth, ideal for long-distance connectivity, more reliable, and capable of withstanding all typical environmental stresses expected in their application. Cables that are installed in the vicinity of high-voltage power lines should be grounded, including all-dielectric cables. 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. For loose tube and ribbon cable this is typically specified for an installation temperature of -30C to +75C. Cables should be tested after shipping. Install a cable in locations in which the temperature range imposed is within the temperature operating range. Divide long pulls into several shorter pulls, using the figure 8 technique for storing cable at the intermediate locations. Make As-Built Data logs. Use plenum rated cable where it is mandated, etc., etc. Pulling and reel locations should also be set at corner vaults where possible. For our data center infrastructure products, we have plenty of support available for you. Instead, you’ll need to connect your phone company and a technician will do the work.The fiber optic cables will end up in an optical network terminal on the side of your house. 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. Fiber is stronger than steel when you pull it straight, but it breaks easily when bent too tightly. Breakout lengths for your cables are the distance from the furcation point (where the individual cables separate from the consolidated, single sheathing) to the end of the connectors. Pleasanton, CA 94566 It is extremely important to take an accurate measurement when planning an order for a custom pre-terminated fiber optic cable assembly. Cable sag increases in warm weather or when power cable is passing heavy current. Avoid placing cable reels on their sides or subjecting them to shock from dropping. Make sure that you have all of the tools and materials you will need to complete your installation, including: Velcro and cable management, scissors to remove twist ties, a garbage bag for the packaging, a fiber cleaner (if needed), and cable labeling (if needed). 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. You should always clean the connector and adapter before plugging them in. It’s from here that you’ll run the fiber optical lines into your house for phone, Internet and TV. The bend radius of a fiber cable will dictate the amount of ”give” in the fiber to safely install where bending is necessary. However, copper trunk service loops quickly can become unmanageable in typical server cabinets. If you don’t already know someone here, we’re glad you found us and happy to get to know you! Use cable managers in all new cabling applications. The reel should have a brake to maintain significant tension as the cable … The strength member should be attached independently. 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. Using zip ties on the fiber optic jacket directly can break the fibers. The range of recommended installation temperatures of cables is much smaller than the operating temperature ranges). After the cable has been installed, and the pulling tension removed, the cable may be bent to a radius no smaller … Loose tube cables must be looped. Suitable cables can make the installation much more convenient. Maintain proper air flow to “blow” the cable verses “pushing” the cable. Train installation personnel. 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. If possible, use an automated puller with tension control or at least a breakaway pulling eye. Instead, make sure it is kept on one side as much as possible. Extreme caution should be observed when performing an aerial installation. 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 lubricant has to be compatible with the cable jacket material. Do not mix copper cable and fiber cable in the same ducts or trays. The minimum crew should have one person monitoring the pulling equipment, one monitoring the supply reel, and one coordinating all involved in the installation. 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. Use a generous amount of cable pulling lubricant on the entire run, especially on the leader (pulling eye & mesh). The finalized layout and port counts are critical to an architect’s effective design. Fibers and buffer tubes do not have sufficient strength to resist breakage due to normal handling of copper cables. Feb 27, 2016, Fiber Optic Patch Cables Tutorial Fiber optic cable installation is not an easy task. The electric spark generated by a fusion splicer can cause an explosion when flammable gases are present. If this happens, attenuation can increase and fibers eventually break. Also, avoid excessive twisting or stress on pre-terminated cables during installation. 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. Ultimately, this is best determined through a discussion of specific applications between you and your design architect. Create a detailed, written plan of installation. Failing to test fiber cabling after it is delivered is a common mistake made by installers. Be sure to manage service loops using Velcro in a circle with at least four mounting points. Fiber cables can and do jump from unmonitored pulleys. Step 1: Connect the AT&T Fiber℠ Service Box. Cap off or seal the ends of cables with water blocking gel or grease. Maintain proper clearance between the fiber optic cable and power cable at all times. The yarn should be tied in a knot with the pull rope, so that the jacket will not be inadvertently used for strength. Excessive stress can break and/or damage an assembly, causing it to improperly pass network traffic. The reason is that the excess length of fiber in the buffer tube and the ability of fiber to move from low stress region to higher stress region. Only remove connector and adapter duct caps prior to making the connection. These data logs should include both insertion loss measurement and OTDR measurements. DO NOT rotate back-and-forth or round-and-round because this could grind debris into the transceiver. Ducts and innerducts should be sized to meet present and future cable installation requirements. 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. There is also a chance that some human hands have touched it, or a particulate has scratched it. Warranties don’t cover mishandling of cabling. When pulling the fiber out of a section, coil the cable on the floor in a figure 8 pattern to avoid twisting. For fiber optic cable, use horizontal finger style with front cover cable managers in a 1U or 2U footprint. The route to getting Fibre Broadband. Never install a fibre optic cable if temperature is below –5°C (Be aware that in cold environment the cable jackets are stiffer and more sensitive to bending and pulling. Always make allowances for power cable sag due to weather and current conditions. Leave cable and fiber service loops everywhere. Loop vertically installed loose tube cables. The cable is placed on the ground in a figure 8 pattern. Follow the blowing equipment suppliers blowing distance recommendations; 3000 to 6000 feet is a typical blowing length. Get the cable from the local box to your house. Do not store cable within the closure or pedestal unless there is enough room to accommodate the minimum specified cable bend radius. The design’s intent is to minimize future errors due to snags, awkward cable access, slack, and unprotected connections in trafficked areas. Just call us at 800.913.9465 during business hours EST, or fill out the form on this page. Protective caps should be left on until immediately prior to cable installation. Sign Up Now! A small amount of slack cable (20-30 feet) can be useful in the event that cable repair or relocation is needed. Identify cable locations with surface markers. 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. Avoid placing fiber optic cables in raceways and conduits with copper cables to avoid excessive loading or twisting. A fiber optic cable should be tested three separate times during an installation: on the reel, the splicing test, and the final acceptance test. Use only lubricant that is expressly designed for cable pulling. Exceeding this limit can result in fiber breakage, excess attenuation, and, in loose tube cables, fibers sliding from cables. 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. Installing Fiber Optic Cable. Record all required fiber optic facility details, including proper route drawings, fiber assignments, loss readings, OTDR traces, etc. Mark cable as “fiber optic cable” in all locations in which it can be easily reached. Careful cable placement facilitates access to transceivers and ports both in active equipment and patch panels. Follow the following step by step guide for installation of fiber optic cable: Step One. The architects will use this detail and additional information gathered, to build the cabling infrastructure design. Feb 27, 2016, Multimode Fiber and Multimode Fiber Optic Cable Tutorial Fiber optic cable has an installation minimum bend radius value. Silicon Valley's fiber optic products distributor. It’s true that fiber optic cable, based on optical technology to carry information between two points, have become increasingly important in fiber optic 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. Methods of duct installation, installation preparation and … You can see more detailed contents in Duct Installation of Fiber Optic Cable. An installation partner should provide close-out documentation as defined by the scope of work (SOW) after project completion. Using it outside these parameters can lead to damage or pressure on the small fiber jumper cables, which could potentially increase loss or damage the link. Any and all changes from the original design drawings in the SOW should be in the document. Fiber optic cables shall be identified in such a way to distinquish these cables from wire or coaxial cable. This would be three years in the making for myself, so it couldn’t have come soon enough! You will regret not doing so. Make as-built data logs on all cables. 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. Feb 27, 2016, Single Mode Fiber - Single Mode Fiber Optic Cable 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. Always roll the cable off the spool instead of spinning it off the spool end. In medium fiber-count cables (6 to 24 fibers), the connectors must be staggered when installed to reduce the diameter of the pulling grip. Mostly, telephone operators like AT&T and Verizon provide the fiber optic cable network. Implementation of these outlined fiber optic cabling installation best practices will ensure the best environment for proper functioning of your cables. Mistakes in length of the trunk or connections due to changes could be costly for you. The two most common outdoor fiber optic cable installations in Ohio are pole-line aerial … Intermediate cable attachment points however are recommended for optimum performance. Most pre-terminated systems today do not require additional cable added for service loops. You want to remove the contaminants prior to connecting. The coil can get deep quickly and a figure 8 will provide more room. Never directly pull on the fiber itself. Innerduct provides a good way to identify fiber optic cable and protect it from damage, generally a result of someone cutting it by mistake! This can be accomplished by weaving the strength member into the fingers of the grip, and then taping it together. In outdoor installations, a common practice of 2.5 foot sag for 150 foot span is good for thermal expansion and contraction. The pulling tape should have a rating for greater than maximum anticipated pulling tension. For direct burial installations, the cable should lie flat in a trench, free of any large stones or boulders that may deform the cable. For longer lengths, label your trunk cables at both ends with length, origination, and destination information. Keep in mind that “pinching” the fiber optic cable also damages the glass, thereby ruining performance. However, real-life applications often require the cables to turn in different directions from source to destination. 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. When a steel messenger wire is used for aerial installation, avoid zigzagging the messenger wire from one pole side to the other. These custom assemblies cannot be returned unless out of box defective. NASA-STD-8739.5 [10.2.2] NASA WORKMANSHIP STANDARDS: Released: 04.05.2002: Revision: Revision Date: Book: 10: Section: 10.01: Page: 3: FIBER OPTICS GENERAL REQUIREMENTS (cont.) Your manufacturer’s specification sheet should be consulted for specifics. Never look into a fiber, cable, or connector unless you know for sure that there is no laser light in the fiber. If the cable is too short, don’t try to stretch it! Putting a twist in the cable can stress the fibers too. If cables are present in ducts through which the fiber cable is to be pulled, the existing cable types should be identified and the owner of the cable called to inform him of the action, and to identify any safety concerns. Instead, use a pair of electricians scissors or diagonal cutters. Consider wide body cabinets (wider than 24 inches) along with vertical cable managers (4”, 6” or 12” wide) for core cabinets, main patch cabinets, or cross-connect cabinets. Do not use a back and forth scrubbing action. A split mesh grip is recommended to secure the cable. Failure to allow for thermal expansion can result in increased attenuation and breakage of fibers. If your area has the fiber optic network, then you should also have a fiber distribution box. 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. Duct Installation of Fiber Optic Cable 1. www.cablexpress.com. This will ensure you do not damage the assembly when pulling on the fiber optic “legs.”. In the event product is damaged due to handling at your facilities, you will be responsible for the cost of replacement. These cabling interchanges often have much more cabling than a rack or wiring closet, so additional space is needed for clean cable management. Obtain all required fiber cable installation authorizations and permits along the route. Storage and installation of OFS fiber optic cable is limited to the temperature ranges listed in Table 2. This keeps cable tight and prevents unraveling. 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. Air compressor cooler should be used as recommended by the blower equipment manufacturer. They can interfere with access to the cabled hardware units. Proper cable lubrication is designed to reduce the tension on the fiber optic cable. Install vertical, unfilled, loose tube cables with loops to prevent the fiber from slipping to the bottom of a vertical run. Trunks are custom-built and cannot be returned. Transmission performance depends on several characteristics: Testing results directly after installation: 5404 South Bay Road Use fiber optic cable lubricant. 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. 2. This loose end is pulling into the next section of conduit or duct. Your product warranty generally only covers defects or errors caused during the manufacturing process. Conduit runs should be limited to 100 feet, with no more than two 90-degree bends between pull points or boxes. Email: sales@foscoconnect.com, 101 Guidelines for Fiber Optic Cable Installation, Fiber optic cleaning - fiber connector cleaner, Multimode Fiber and Multimode Fiber Optic Cable Tutorial, Single Mode Fiber - Single Mode Fiber Optic Cable. Poles must be prepared for the installation of the pulleys and the final cable hardware before cable pulling begins. But be consistent. Cable Blowing or Jetting in Duct Applications. Consider wide body cabinets (wider than 24 inches) along with vertical cable managers (4”, 6” or 12” wide) for core cabinets, main patch cabinets, or cross-connect cabinets. If the cabinet is two feet wide and less than four feet deep, plan for minimal service loops, or no service loops at all. Do not mount service loops in conveyance unless specified in the design. Proper techniques depend on the cable design and the location of the installation. Fiber Optic Glossary Check the continuity and attenuation of the cable before each operation. Test results should be provided both in soft and hard copy. Accessibility considerations are critical when mounting and/or installing cables. Never exceed the maximum pulling load rating. Cable blowing. Remove all product from the cardboard shipping containers before bringing them into your data center. Do not rotate the connector when making the connection. 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