By Jim Hayes
Fiber Optic Technician's guide, now in its moment version, maintains to function a pragmatic consultant for the fashion designer, installer, and troubleshooter of fiber optic cable crops and networks utilized in trendy communications platforms. finished in scope, this publication addresses functions of fiber optics together with mobile, CATV, and computing device networks. dialogue facilities at the fundamentals of the know-how, the parts used, and their set up. in accordance with fabrics built through running shoes for his or her personal education courses, together with the winning "Fiber U" software, Fiber Optic Technician's handbook, 2d variation has been thoughtfully up-to-date and now positive aspects new functions, plus new parts and techniques that experience turn into usual within the undefined. tricks on the way forward for this swiftly evolving expertise also are incorporated.
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Communication circuits. 4. Community antenna television (CATV) circuits. Composite cables must be used exactly as listed on their cable jackets. All optical cables must be installed according to their listings. Refer to Section 770-53 to see the cable substitution hierarchy. REVIEW QUESTIONS 1. Buffered fiber comes in three styles: 1. ________________ 2. ________________ 3. ________________ 2. Loose-tube cable is used where ________________ a. ease of termination is a concern. b. high pulling strength is required.
Every hub connects to the main telecom closet with one cable per hub. Cat 5 Copper Fiber Optics Horizontal Telecom Closets (Hub, power, UPC, interconnections) Fiber Patch Panels Backbone Main Cross-Connect Figure 3-5 Fiber and copper use different network architectures. 40 CHAPTER 3 — FIBER OPTIC NETWORKS In the telecom closet, every hub requires conditioned, uninterruptable power, since the network depends on every hub being able to survive a power outage. A data quality ground should be installed to prevent ground loops and noise problems.
These tubes are also used as inner ducts, placed inside of larger (usually 4 inch) conduits. The plastic pipes provide a smooth passageway; by using several units inside of the larger conduit (with spacers holding them in place), the cables stay well organized. The plastic pipe can be smoothly bent, providing for very convenient installations and can reduce friction for easier and longer cable pulls. Aerial Installations When optical fibers are to be installed aerially, they must be self-supporting or supported by a messenger wire (See Article 321 of the NEC).
Fiber Optics Technician's Manual, by Jim Hayes