Plan the Installation. 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. Excessive pushing will cause the cable to cork screw in the duct or fold over which will damage the fiber. Remove all product from the cardboard shipping containers before bringing them into your data center. In addition, trunks are custom-made and will take some time to make. The tip of the fiber connector, where the fiber optic glass protrudes, is the most common area for damage to occur. Fibers and buffer tubes do not have sufficient strength to resist breakage due to normal handling of copper cables. Feb 27, 2016, Multimode Fiber and Multimode Fiber Optic Cable Tutorial Never exceed the maximum pulling load rating. The design’s goal is to maximize efficiency using loss budgets productively. They are black in color. For direct burial installations, the cable should lie flat in a trench, free of any large stones or boulders that may deform the cable. It is extremely important to take an accurate measurement when planning an order for a custom pre-terminated fiber optic cable assembly. Poles must be prepared for the installation of the pulleys and the final cable hardware before cable pulling begins. Service loops are created when additional length is added to a cable for contingencies. They offer better bandwidth, ideal for long-distance connectivity, more reliable, and capable of withstanding all typical environmental stresses expected in their application. All Orders Get 5% Cash Reward. For example, proper technique is pulling a cable into a conduit. Lubrication reduces the pulling load and the chance of breakage. Number of 90 degree turns. Never twist the fiber cable. 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. Fiber optic cable has an installation minimum bend radius value. 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. Damage to cabling can occur during shipping or installation. TIA-606-C documents the official standards for cable colors. Feb 27, 2016, 269 Mavis Drive A fiber optic cable should be tested three separate times during an installation: on the reel, the splicing test, and the final acceptance test. Do not rotate the connector when making the connection. Our architects are happy to provide free design assistance for full scale data centers, colo-space, and upgrades. Anticipate obstructions. After the cable has been installed, and the pulling tension removed, the cable may be bent to a radius no smaller … Failing to test fiber cabling after it is delivered is a common mistake made by installers. Pulling and reel locations should also be set at corner vaults where possible. 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. Do not let the connector tough any surface once the duct cap has been removed. After the fiber optic cable is installed into a duct or innerduct, end plugs should be installed to provide an effective water seal. Intermediate cable attachment points however are recommended for optimum performance. 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. Use an air compressor with a minimum of 375 cfm. Installing Fiber Optic Cable. If there are too many bends in the run then you may consider installing junction boxes in lieu of bends. The furcation point is designed for this, as it has a metal sleeve to protect the fiber. 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. Fiber optic cable is usually (but not always) installed in an innerduct that provides mechanical protection for the fiber optic cable. Mark cable as “fiber optic cable” in all locations in which it can be easily reached. 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). Storage and installation of OFS fiber optic cable is limited to the temperature ranges listed in Table 2. Riser cables are generally required for vertical applications and plenum cables are required where there is a positive air pressure space. An installation partner should provide close-out documentation as defined by the scope of work (SOW) after project completion. 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. Make as-built data logs on all cables. For cables using aramid yarn alone as the strength member, the jacket can be removed to expose the yarn. Fiber splicing make things complicated and expensive. Basic guidelines that can be applied to any type of cable installation are as follows: • Conduct a thorough site survey prior to cable placement. Proper technique is placing or laying a cable in a cable tray or raceway. 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. The design’s intent is to minimize future errors due to snags, awkward cable access, slack, and unprotected connections in trafficked areas. 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.) 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. Pull, do not push cables. 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. Install a cable in locations in which the temperature range imposed is within the temperature operating range. Segregate or isolate the work area. 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. Never directly pull on the fiber itself. Optional pulling eyes are highly recommended. Use plastic bushings on conduit ends to avoid damage to the cable during the pull. If you don’t have any idea how the process for installation works, better ask assistance from professionals. 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). This will put a twist in the cable for every turn on the spool! Using zip ties on the fiber optic jacket directly can break the fibers. Do not allow vehicles to drive over a cable. The FOA and NECA (National Electrical Contractors Association) in 2001 cooperated to develop the first ANSI standard (American National Standard) covering the installation of fiber optic cable plants. Monitor the supply reel. For our data center infrastructure products, we have plenty of support available for you. However, real-life applications often require the cables to turn in different directions from source to destination. Fiber cables can and do jump from unmonitored pulleys. This will avoid safety problems such as fiber splinters and unintentional abuse. The lubricant has to be compatible with the cable jacket material. It’s important to match any staggers to the correct equipment. On really long runs, pull from the middle out to both ends. During cable placement, it is really crucial that the cable not be bent to a smaller radius. For extensive work with fiber optics, safety glasses with IR filter is recommended. After the fiber optic cable is installed into a duct or innerduct, end plugs should be installed to provide an effective water seal. Fiber is stronger than steel when you pull it straight, but it breaks easily when bent too tightly. Record all required fiber optic facility details, including proper route drawings, fiber assignments, loss readings, OTDR traces, etc. Maintain proper clearance between the fiber optic cable and power cable at all times. Violation of the temperature operating range can result in excessively high attenuation. Transmission performance depends on several characteristics: Testing results directly after installation: 5404 South Bay Road These checks should be performed as-received/before installation, after installation, after splicing, and after connector installation. Identify the exact fiber optic cable route and ensure that it meets all installation specifications. The person may stop the cable pull from time to time to prepare and apply more lubricant. Identify lightwave equipment that will be used and ensure that the equipment will function properly with the fiber cable being installed. Know and observe the maximum vertical rise distance limit. CABLExpress is dedicated to delivering quality in every product we provide – and every interaction you have with us. Email: firstname.lastname@example.org, 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. 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 cable lubrication is designed to reduce the tension on the fiber optic cable. Always make sure that access to other major components is not blocked. Dropped Ceilings and Raised Floors Cabling 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. 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. Pushing can result in violation of the bend radius. Most pre-terminated systems today do not require additional cable added for service loops. While inconvenient to remove, pull-eyes protect your connections and your warranty. The downside to service loops is the potential for too much congestion in the cable pathways. All vertical cable must be secured at the top of the run. Implementation of these outlined fiber optic cabling installation best practices will ensure the best environment for proper functioning of your cables. Identification methods typically used are color-coding, labeling/marking, etc. These custom assemblies cannot be returned unless out of box defective. The bend radius of a fiber cable will dictate the amount of ”give” in the fiber to safely install where bending is necessary. Cable Blowing or Jetting in Duct Applications. Keep these data available to those who will perform maintenance and troubleshooting. This product type is designed to operate optimally within racks and cabinets at short lengths. Note: The inside radius of conduit bends should be at least 10 times the diameter of the cable. Safety precaution – do not look into fiber without checking status. The architects will use this detail and additional information gathered, to build the cabling infrastructure design. This allows for the addition of new cables and later removal of them when they are no longer needed. For all other applications use ONLY Velcro. It may be mounted on a wall in the basement, garage or utility … Grounding: Cable with metallic components shall follow the bonding and grounding requirements of the customer and local or national codes. Special fiber optic blocks should be used on all turns or angles. 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. Inspect a second time after cleaning before plugging in. Conduit Installations General Information: Try to design the conduit run with a few bends as possible. Duct Installation of Fiber Optic Cable 1. Cable clamps should be installed manually with gentle pressure. Test results should be provided, as previously stated. Proper training reduces expense through reduction of breakage and excess attenuation. Exceeding this limit can result in fiber breakage, excess attenuation, and, in loose tube cables, fibers sliding from cables. When pulling the fiber out of a section, coil the cable on the floor in a figure 8 pattern to avoid twisting. These data logs should include both insertion loss measurement and OTDR measurements. Do make every effort to pull cables from a conduit in. The cable reel should be placed well away from the first pole to prevent bending the cable excessively at the first pulley. 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. Keep in mind that “pinching” the fiber optic cable also damages the glass, thereby ruining performance. Do not store cable within the closure or pedestal unless there is enough room to accommodate the minimum specified cable bend radius. Any and all changes from the original design drawings in the SOW should be in the document. F. 315.455.1800, email@example.com It is much cheaper to pull in a service loop than to replace an entire run of fiber cable. The fiber optic glass underneath the jacket performs best when running straight. Cables should be tested after shipping. And always use a swivel pulling eye because pulling tension will cause twisting forces on the cable. For longer lengths, label your trunk cables at both ends with length, origination, and destination information. Suitable cables can make the installation much more convenient. This is done by connecting the The swabs should only be used ONCE. AT&T Fiber℠ self-installation guide. Fiber optic cables have Kevlar aramid yarn or a fiberglass rod as their strength member. If space for service loops is at a minimum, consider running trunks into a figure 8 to better help manage the length. Personnel involved in Optical fiber cable installation must be aware of all the applicable Occupational and Health safety regulations, the NESC and local regulations along with the company safety practices. 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. Fiber optic cables shall be identified in such a way to distinquish these cables from wire or coaxial cable. Train installation personnel. Make As-Built Data logs. e. Do not discard excess cable from the installation, but store it for future needs in restoration if the cable plant is damaged. If your inventory is short, or product is damaged, you will not be able to get replacements overnight. Check continuity and attenuation. A cable shoot/pulley larger than the specified bend radius is recommended to minimize the cable bend at the first and last pulley locations or at any location with a change in direction. This keeps cable tight and prevents unraveling. You can see more detailed contents in Duct Installation of Fiber Optic Cable. 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. On runs from 40m to 100m, use proper lubricants and make sure they are compatible with the cable jacket. Create a detailed, written plan of installation. Properly attach the pulling eye and swivel to the cable. Pleasanton, CA 94566 Learn more about how and why to buy from us here. 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