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New Building-Optical Networks Essay

The new structure has been given a grant to make its network state of the art by making it a fiber optic network. The topics of discussion that will be mentioned in this paper are the hardware that will be necessary for the inside and outside of the building and how we would expand the fiber to an adjacent building if it is built. Another topic to be discussed will be describing the safety procedures that will be following during the installation.



When running a cable through a wall, conduit or other inaccessible space a pulling eye can be an indispensable tool. This device is specially designed to attach to the strength member of the cable at one end and a pulling line on the other. The pulling line is used to pull the eye with the attached cable through an inaccessible space. This allows you to pull the cable and protect the fiber ends from damage.

PULL BOX – A pull box is usually installed after a long straight run or every time the set of turns totals 180 degrees or more. The pull box is used to create a intermediate opening for the pulling cable to reduce the length of cable being pulled through the conduit or to reduce the number of turns the cable is being pulled through at a given time. It is important to keep in mind the bend radius of the cable when using a pull box.

SPLICE ENCLOSURES – Splice enclosures can take many forms depending on their location and application. Splice enclosures can be typically place in one of the two following categories. 1. Radial Splice Enclosures – radial splice enclosures have cables enter and exit the enclosure on the same side. 2. Axial Splice Enclosures – Axial splice enclosures have cables enter and exit on opposite ends of the enclosure. Enclosures designed for outdoor use are environmentally sealed. Typically all enclosures will include: * A strain relief system that ensures the strength member of the cable will carry the tensile load. * Clips that hold the splices in an orderly fashion.

* Space for looping the extra optical fiber that is needed to perform the splice outside the enclosure

PATCH PANELS – Patch panels are an interconnected point for fiber cables that allow signals to be routed from one cable to another with a patch or jumper cord.

CONDUIT – Conduit is used to for cable runs inside and outside structures. Cable is run through the conduit using fish tape and pulling eyes. In many cases conduit may already be in place for other uses and fiber can be run adjacent to them without the need to install ne conduits.


If we wanted to run fiber to other building on our campus I would recommend using the direct burial method of cabling. Direct burial would be done by placing conduit underground between the two structures that need the fiber optics. This will keep the cables out of sight and protect them from the natural elements. Another method that may be used to fiber both buildings on campus is blown fiber. This is not a traditional method of cabling a network but it has advantages the others do not. With blown fiber optical fiber is blown through tubes from one location to another. The optical fibers can also be removed from the casing and new fibers blown in. This is a great option because if the optical network gets old and needs to be replaced with new or better fiber it can be done without destroying property or digging up conduit.


Safety is job one for everyone. All contractors performing fiber optic cabling will be required to adhere to the site safety plan. Safety is job one and will be followed at all times. The following is some safety procedures that should be followed during fiber cabling. The two major safety issues are proper disposal of the glass strands created by cutting and trimming the fiber or accidentally breaking it, and the cleaning chemicals and adhesives used in installations. * Always dispose of fiber scraps carefully, place in a disposable container that has a sealed lid and dispose of them properly. Remember fiber scraps are the same as glass splinters. * Handle cleaning chemicals and adhesives carefully and be sure to be familiar with the Material Safety Data Sheets (MSDS’s) information and the hazards

* Employee will use double-sided tape to pick up broken or stray pieces of fiber. * Employee will frequently clear off working surfaces where bare fiber may exist, use double-sided tape to pick up broken or stray pieces of fiber. * The used double-sided tape with broken or stray pieces of fiber will be disposed of in properly labeled containers that can be tightly sealed. * Employee will not allow broken or stray pieces of fiber to fall onto the floor where they will stick in carpets or cling to shoes and be carried elsewhere. *

Employee will avoid setting up fiber optic cable splicing and terminating work areas directly under or near heating or air conditioning outlets, as dust or dirt on connectors is a major cause of scratches on polished connectors that can cause high loss measurements. * Employees must keep dust caps on connectors, bulkhead splices, and patch panels and use lint-free pads and isopropyl alcohol to clean the connection point of airborne dust particles. * Thoroughly clean your work area when your task is completed. *

REMEMBER FIBER SCRAPS are the same as glass splinters and can cause internal hemorrhaging if ingested. * Keep all food and beverages out of the work area. Do not smoke in areas where fiber optic cables are being spliced or terminated, or where bare fibers are being handled. * Employees will not bring cosmetics, lip balm, medicine, eye drops, chewing gum, chewing tobacco, hand creams, or lotions in areas where fiber optic cables are being spliced or terminated, or where bare fibers are being handled. * Prior to leaving the work area where fiber optic cables are being spliced or terminated or where bare fibers are being handled, employees will check their clothing to remove any stray pieces of bare fiber by patting themselves with clean pieces of double-sided tape, then properly dispose of this tape. * Employees will immediately and thoroughly wash their hands after leaving the work area, where fiber optic cables are being spliced or terminated, or where bare fibers are being handled. *

Work areas for splicing and terminating fiber optic cables must be provided with adequate lighting and ventilation. * Wear disposable apron if possible to minimize fiber particles from attaching to your clothing. Fiber particles on your clothing can later get into food, drink, and/or be ingested by other means or carried home in/on your clothing and expose family members to the fiber splinters. If the project was an existing building the fiber network would be easier to accomplish assuming the existing network used the proper conduits and adhered to up to date building code compliance. If the conduits were already in place for copper then we could just pill the copper out and run new fiber in it’s place and add in new patch panels, pull boxes, splice enclosures. With the new building everything being done from scratch takes more planning and time but if the existing building didn’t meet the regulations or needed all new conduits this would take even more time. The best practice is to evaluate a existing and make sure you know what you’re getting into before the job starts.

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