2023-195 - Laserfiche WebLink

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shall be allowed. Furnish and install the splice closure with the correct number of entry ports as dictated by each fiber optic splice location. The splice enclosure shall be designed to permit selective fiber splicing (looping of backbone cable in and out while only cutting the desired fibers). The splice enclosure shall allow splicing of all fibers in the cables being terminated. The enclosure shall be waterproof and re -enterable, and shall be designed to protect the buffer tubes in the splice trays. The splice trays within the enclosure shall be capable of accommodating the required number of splices including storage and protection of slack fiber. All pricing for fiber count splices as listed in Section 7.7.8, are to be inclusive of all necessary labor and materials needed to complete the job. This shall include, but is not limited to, labor, splice enclosures, trays, inserts, splice sleeves and all other hardware and consumables. 7.7.2 Interconnect centers Furnish compact, modular interconnect centers (3M 8423 or equivalent) designed to mount (rack or wall) insight equipment cabinets. Design and size interconnect centers to accommodate all fibers entering equipment cabinets. Provide splice trays that, protect, and organize optical fibers and that secure fibers inside the splice tray. Design and size splice trays that fit accordingly into a 19" rack or wall mount unit that accommodate all fibers entering the splice tray and that shall provide sufficient space to prevent micro -bending of optical fibers. All terminated fiber shall be tested with an OTDR in the fashion described Section 7.2.5. All fiber optic terminations of OSP fiber shall be done in the manner of fusion splicing on a factory polished pigtail. All pigtails, as well as port plates, shall utilize the ST standard unless otherwise called for. All pricing for the termination of the following counts of fiber shall to be inclusive of all labor and materials needed to complete the job. This shall include, but not limited to, labor, enclosure, port plates, splice trays, inserts, splice sleeves, and all other hardware and consumables. 7.7.3 Splice slack A maintenance loop at each pull box or fiber optic splice box, shall be at least 50' of cable (or as specified by the Owner Project Supervisor); this slack cable shall be coiled and neatly placed in the splice box. This shall allow for future splices in the event of a damaged splice. Additionally, every effort shall be made to maintain a minimum of 10' of cable from each cable's entering the enclosure which shall be prepared and installed within the enclosure. 7.7.4 Splice loss Individual splice loss shall not exceed .04 dB loss. 7.7.5 Installation slack For all fiber runs, approximately 10% slack will be evenly distributed along the path for future emergency repairs or relocations. Aerial locations shall utilize "snow shoes" and underground shall utilize pull boxes. 7.7.6 Optical termination requirements ST fiber optic connectors are standard for use on each project and shall be utilized by function in the following manner or as specified by the Owner Project Supervisor. Utilize ST type fiber optic connectors at the field device level. ST connectors shall be comprised of a ceramic ferrule, nickel plated zinc, or composite connector body to accommodate a field bayonet connection. Utilize factory pre -terminated assemblies that adhere to the applicable cable, cordage and fiber specifications of this document. All inside plant (IP) assemblies shall meet NEC jacketing requirements and shall have outer jacket coloration of yellow for single mode. No splices of any type are allowed within an assembly. Each assembly shall be individually packaged within a plastic bag, and that bag shall have the submitted manufacturers part number marked clearly on the outside of said bag. Each assembly shall be labeled as directed by the Owner. 33