A. PERFORMANCE REQUIREMENTS 1. Scope of Work a. The work covered under this section shall include furnishing and installing a complete telecommunications system for the distribution and/or networked data and/or CATV signals. b. It shall be the Telecommunications Contractor s responsibility to coordinate with the telephone and/or CATV service provider to insure timely delivery of permanent telephone or CATV service. c. The Horizontal (Telecommunications rooms and workstations) Cabling System for Data/Voice shall consist of 4-pair Unshielded Twisted Pair (UTP) Copper Cables to each work area outlet to be shown on the Construction Documents (drawings). These cables shall be installed from the Work Area Outlets or wall outlets to the designated Telecommunications Rooms (TR s) to be indicated on the Construction Drawings, and routed to the appropriate data rack serving that area and terminated as specified in this document for data and voice. The Horizontal Cabling System for CATV shall consist of coax cabling to wall outlets. Horizontal CATV cables shall route from the outlet to the splitter, or tap located, preferably, in the accessible ceiling. CATV backbone cables will be routed from the splitters/taps to the headend via splitters, taps or directional couplers. d. The Telecommunications Contractor shall install owner provided wireless access points and wireless exterior antennas. Installation shall be in accordance with the manufacture s installation guidelines. Also to be provided are all cores necessary for a complete install. Equipment pick-up will be coordinated with CMS Telecommunications Site Inspectors. e. The Telecommunications Contractor shall provide one (1) plenum series 6 coaxial cable routed from the main data room (MC) to the television console unit that is provided by the Owner. Coordinate television console unit location with Charlotte- Mecklenburg Schools Telecommunications Department. 2. Work Not Included a. The telephone switch, telephone instruments, network electronics, including data concentrators, hubs, servers, computers and other active devices, as well as CATV headend equipment including modulators, sub-channel return system, televisions, VCR s, and DVD s shall be furnished and installed by the Owner. B. QUALITY ASSURANCE 1. Designer Qualifications a. The designer of the cabling systems shall have the RCDD certification and have appropriate experience with designing wiring infrastructure systems for K-12 facilities and the knowledge of the requirements for North Carolina Public Schools. b. A copy of the RCDD certificate shall be submitted to the Owner. 2. The Telecommunications Contractor shall employ qualified and certified technicians to this project that have experience with the installation of low voltage cabling infrastructures and provide appropriate supervision to all technicians on site. 3. Telecommunications Contractor Qualifications 1 of 28
a. Certification shall include Technician certifications from the connectivity, cable, and fiber manufacturer installed on the job. b. The lead technician assigned to the project shall be a BICSI registered installer at the technician level. c. 30% of all technicians on site at all times shall be BICSI certified installers. d. Technician assignments a) Telecommunications Contractor shall submit a roster of technicians assigned to this project and shall notify the Owner and Designer of any changes to this assignment roster for the duration of the project. 4. Telecommunications Contractor shall hold a current North Carolina Electrical Low Voltage License. 5. Qualification Documents to be submitted with bid a. Copies of technician certifications b. Company North Carolina Electrical Low Voltage License c. Employee RCDD certificate(s). d. List of similar jobs completed in the past five (5) years; include contact information for reference purposes. e. Project roster of technicians assigned to the project. 6. Failure to remit qualification information with the bids will result in denying work to those contractors. 7. Equipment and materials of the type for which there are independent standard testing requirements, listings, and labels, shall be listed and labeled by the independent testing laboratory, i.e. UL. 8. Where equipment and materials have industry certification, labels, or standards (i.e., NEMA National Electrical Manufacturers Association), this equipment shall be labeled as certified or complying with standards. 9. Material and equipment shall be new, and conform to grade, quality, and standards specified. Equipment and materials of the same type shall be a product of the same manufacturer throughout. Materials and equipment are to be installed per industry standards and manufacturer s recommendations. 10. The Owner retains the right of inspection of the work at any time. Any material or work, which does not comply with the specifications or current industry standards, will be subject to rejection. Any such rejected work or material shall be reworked and/or replaced and made to conform with said specifications at no additional cost to the Owner. 11. Regulatory Requirements: The following latest editions of the industry standards are the basis for the structured cabling system described in this document. The standard listed shall be adhered to in the same manner as if they were the codes: a. TIA/EIA 1) Article 526, 568, 569, 606, 607 b. BISCI 1) Telecommunications Distribution Methods Manual 2) Cabling Installation Manual 3) Customer-Owned Outside Plant Design Manual c. NFPA 1) NFPA 70 National Electric Code (NEC) 2 of 28
d. Division 26 Electrical C. DESIGN REQUIREMENTS PART 1 -GENERAL 1. This standard shall be applied to new school facilities and to all existing facilities undergoing substantial renovations in which a large portion of the existing communications cabling is being replaced. 2. It is recognized that in some cases this standard may not provide the optimum approach. If there is an instance for a variance from the standard, the CMS Telecommunications Department shall be contacted to approve the variance. Ten working days shall be allowed for the review of the proposed variance. 3. Related Documentation: a. Division 13 Special Construction (CMS A&E Guide) b. Division 25 Mechanical (CMS A&E Guide) c. Division 26 Electrical (CMS A&E Guide) d. Division 27 Telecommunications PART 2 COMMUNICATION ROOMS 1. The Main Communications Cross-Connect (MC) contains the telephone switch, CATV headend and network electronics. The security head-end may also be in the MC closet. Minimum dimensions shall be 14 x 12. See Figure 1 in the Appendix for a typical layout. The telephone entrance cables shall come up in the MC closet. The MC should be on grade level. 2. Telecommunications Rooms (TR) contain network electronics racks. Minimum dimensions shall be 12 x 10. See Figure 2 in the Appendix for a typical layout. 3. Communications rooms shall be centrally located on each floor to serve as a junction point for communications cabling. All cabling shall be served from a telecommunications room located on the same floor. In multistory structures, the communications rooms shall be in line vertically, located on top of one another. The maximum length of an individual CAT6 data cable is 295 feet. This includes vertical distance going up and down the walls and service slack. Slack shall be 10 minimum at the communications room and 12 minimum at the work station (field side). Communications rooms must be located to conform to this requirement. 4. All Telecommunications rooms shall not have lay-in ceilings and shall be conditioned (heating and cooling). Conditioning shall take into consideration the heat emissions from installed equipment in each room. 5. Entranceways to communications rooms shall be a minimum of 36 inches wide and 80 inches high without a doorsill, and shall be fitted with a lock. It is preferred that the door swing out. 6. Lighting shall be provided in all communications rooms to illuminate to 50 foot candles at 3 feet above the finished floor. 7. Portable fire extinguishers shall be provided in each communications room per applicable codes. 8. If the building is sprinkled, the heads in each communications rooms shall be provided with wire cages to prevent accidental operation. 3 of 28
9. The wall finish in communications rooms shall be light in color to enhance room lighting. Painted walls shall not have hues or shades of gray. 10. Rooms that contain power distribution equipment (power panels, transformers, etc.) or running water (sinks, showers, etc.) shall not be considered for communications rooms. Rooms that may be subject to water damage in general shall not be considered for Telecommunications Rooms. Water piping shall not be run above or through the MC or any TR. Electrical conduit or electrical feeders shall not run above or through the MC or any TR. 11. For MC (File Server Room/Main Cross-Connect), provide (6) 4 conduit sleeves in wall for cabling pathway and support into the room. See Figure 1 in the Appendix. 12. For TR rooms, provide (4) 4 conduit sleeves in wall for cabling pathway and support into the room. Add (1) 4 sleeve if the security system is located in IC room. See Figure 2 in the Appendix. 13. Provide (4) 4 conduit sleeves between floors when rooms are stacked on top of each other. Conduits to extend to above ceiling height of the floor it is routing to. 14. For MC rooms, fit-up room with receptacles and data/voice drops as shown in Figure 1 in the Appendix. Note that the quad outlets by the phone switch are on an emergency circuit. 15. For TR rooms, fit-up room with receptacles and data/voice drops as shown in Figure 2 in the Appendix. 16. A clear path to the telephone equipment/backboard and a 3 maintenance area directly in front of the telephone equipment/backboard must be maintained at all times. 17. Racks and accessories shall be provided and installed by the Telecommunications Contractor. Racks and accessories shall be assembled in accordance with the manufacturer s instructions. Install one (1) quad receptacle at 90 AFF for each data rack per Figures 1 and 2. Each of these quad receptacles shall be on a dedicated circuit. Provide (2) L5-30 receptacles in each MC. Provide (1) L5-30 receptacle in each TR. These 30a receptacles shall be located behind the rack that contains the electronic equipment. 18. Ladder tray shall be installed at 8 6 wall mounted to route cables from the point where they enter the communications room to the rear of the racks. Wide sweeping turns are required for all ladder racks and cable trays. Backbone cables, voice cables and data cables shall be neatly grouped in separate bundles before they enter the room then neatly routed to the rack. Use Velcro straps to bundle below ceiling. PART 3 TELEPHONE AND CABLE TV ENTRANCE CONDUIT REQUIREMENTS 1. Provide two (2) 4 conduits and one (1) 2 conduit from the property line to the Main Communications Room. Conduits shall be rigid metal or rigid non-metallic, installed in accordance with Articles 345, 346 or 347, respectively, of the NEC, and ANSI/TIA/EIA- 569-B. Use rigid metal conduit elbows when turning up inside the building and when turning up at the service poles located at the property line. Turn up a minimum of 3 at the property line. Coordinate All conduits entering the Main Communications Room shall be located at the left side of the backboard, extending 12 to 18 AFF and placed tightly against the wall. 2. Conduits shall be buried to a minimum depth of 36 below final grade (EIA/TIA 569-B). Warning tape (detectable) shall be placed at a minimum of 18 inches above the underground conduit. 3. Provide quasite pull box at the pole location for conduits transitioning from pole to underground routing. Coordinate exact dimensions of pull box with the Service Providers. 4 of 28
4. Conduits shall have no more than the equivalent of 180 degrees of conduit bends or contain a reverse bend (U shape). If there is a reverse bend, install maintenance holes or hand holes for a pull point. Reference EIA/TIA 569-B to determine proper size of the pull box. 5. All conduit bends shall have a minimum radius of ten times the inside diameter of the conduit. LBs are not permitted. 6. A nylon pull line, rated 200 pounds, shall be installed in each of the entrance conduits. 7. Cap the conduit ends at the property line to prevent debris, water, and gases from entering the conduits and building before cable installation. Use a rubber cap with stainless steel clamps. The responsibility to seal entrance conduits to protect against water damage is left entirely with the Telecommunications Contractor. 8. Coordinate with CMS Telecommunications Department and the Service Providers for the location of the conduit end-points at the property line. 9. Stake the end of the conduits with an orange marker to aid in location by the local telephone and cable TV companies. Indicate location on drawings. 10. All fire rated structures, walls, floors, ceilings, that are penetrated during conduit placement must be fire-stopped to re-establish the integrity of fire-rated architectural structures and assemblies to appropriate building codes. 11. In order to assure timely service to new construction sites, three copies of the electrical site drawings shall be furnished to the local telephone company and to the local cable TV company a minimum of 120 days prior to the desired service date. PART 4 TELCOM OUTLET REQUIREMENTS These are general guidelines for data/voice requirements. Contact the CMS Telecommunications/Technology Department for detailed requirements. A telcom outlet is defined as a 3/4 conduit terminating in a 4 square outlet box. The electrical contractor shall provide all outlets. Provide a single gang mud ring for each outlet box. Each telcom outlet may be used for data cabling, voice cabling or both. Each telcom outlet shall be located next to an associated electrical quad power outlet. Refer to Appendix for drop counts and locations. 1. Administrative Offices a. Each office shall have telcom outlets located next to quad electrical power outlets as shown on Figure 4. Locate one on the back wall and the other on an adjacent wall farthest away from the door. b. Refer to the Appendix or contact the Telecommunications Department to determine the location and number of telcom outlets in the following locations: reception area, health room, conference rooms, records/file room, student services, parent center and guidance room. c. Provide two (2) sleeves above the door at each office room, if necessary. Each sleeve shall be 1 EMT and have a plastic bushing installed on each side of the conduit. All sleeves shall be fire-stopped if penetrating a fire-rated wall. 2. Cafeterias a. Provide two (2) telcom outlets in the cafeteria manager s office. b. Provide one (1) telcom outlet at each Point of Sale location. Extend ¾ conduit from each POS drop location back to cafeteria manager s office. (If installing under slab provide a 1 conduit from POS location to cafeteria manager s office.) 5 of 28
c. High Schools require 2 (2) POS outlets in the cafeteria manager s office. d. Provide two (2) sleeves above the door at the cafeteria manager s office if necessary. Each sleeve shall be 1 EMT and have a plastic bushing installed on each side of the conduit. All sleeves shall be fire-stopped if penetrating a fire-rated wall. e. Provide two (2) sleeves above the wall that separates the serving line and the kitchen. Each sleeve shall be two (2) 3 EMT and have a plastic bushing installed on each side of the conduit. All sleeve shall be fire-stopped if penetrating a fire-wall. 3. Classrooms a. Each classroom shall have enough (2) telcom outlets located on the instructional wall. One on each side of the marker board. Provide (2) telcom outlets for student computer locations. Provide these outlets minimum 5 apart. All student computers shall be clustered along one wall. The desired location is away from the windows. b. Provide (2) two outlets for AV. These outlets are the same as a telcom outlet with the exception that these outlets will have a 1 conduit extend from the outlet box to above accessible ceiling. Locate (1) AV outlet above marker board 4 to the left of the centerline of the marker board. Locate (1) AV outlet near the telcom outlet on the instructional wall to the side of the marker board that is the greatest distance from the door. c. Install two (2) conduit sleeves above the door at each classroom, if the wall goes all the way to the deck. Each sleeve shall be 2 EMT and have a plastic bushing installed on each side of the conduit. All sleeves shall be fire-stopped if penetrating a fire-rated wall. d. Resource Rooms and Flex Classrooms shall be provided with telcom outlets as regular classrooms. 4. Tutor Rooms a. Provide (1) one telcom outlet. b. Provide two (2) sleeves above the door at each tutor room, if necessary. Each sleeve shall be 1 EMT and have a plastic bushing installed on each side of the conduit. All sleeves shall be fire-stopped if penetrating a fire-rated wall. 5. Computer Labs a. Install enough telcom outlets for the following: Elementary Schools (1) lab (35) computers each Middle Schools (2) labs (35) computers each High Schools (3) labs (35) computers each b. All plumbing lines shall be capped off for future; sinks and casework are not to be installed in computer labs. Locate drops in walls around the perimeter of the lab. Try to minimize the outlets under the marker board. Typically seventeen (17) outlets are needed for each computer lab. Each computer requires 2.5 of linear wall space. Thirty-five (35) computers require 87.5 of linear feet of usable wall space. Space drops accordingly. Also provide one (1) duplex receptacle per computer. c. Install three (3) sleeves above the door at each classroom, if the wall goes all the way to the deck. Each sleeve shall be 2 EMT and have a plastic bushing installed on each side of the conduit. All sleeves shall be fire-stopped if penetrating a firerated wall. 6. Media Centers a. Install enough telcom outlets for the following: 6 of 28
Elementary Schools (20) computers Middle Schools (35) computers High Schools (40) computers Charlotte Mecklenburg Schools b. If floor boxes are installed in the media center, the associated low voltage raceways shall be homerun with a minimum of 1 conduit continuous to the nearest data room serving the area. Do not daisy-chain the floor box outlets. An individual floor box or shall contain a maximum of four (4) data/voice cables. 7. Work Rooms a. Provide (2) two telcom outlets in each work room. b. Provide two (2) sleeves above the door at the work rooms, if necessary. Each sleeve shall be 1 EMT and have a plastic bushing installed on each side of the conduit. All sleeves shall be fire-stopped if penetrating a fire-rated wall. 8. Workforce Development Classrooms and Labs a. Install enough telcom outlets to support thirty-five (35) computers like standard computer labs described above. b. Install three (3) sleeves above the door at each classroom, if the wall goes all the way to the deck. Each sleeve shall be 2 EMT and have a plastic bushing installed on each side of the conduit. All sleeves shall be fire-stopped if penetrating a firerated wall. PART 5 CABLING 1. General a. The size of conduit required will depend on the number of cables to be routed through the conduit. A maximum 40% fill ratio is allowed for all conduit. The minimum size conduits 1. (Minimum size for a conduit stub up for an outlet is ¾.) b. In hallways and other designated locations, open cable tray is to be installed as raceway for low voltage wiring above accessible ceiling. In the case of hard ceiling, a closed-top design is to be used. Tray is to be sized as follows: 1) All Schools a) 18 inch tray with 1 divider; 12 inches for data/voice/video, 6 inches for others c. Under no circumstances shall cable of any type, including fiber optic and innerduct, be laid on the ceiling grid or be supported from ceiling or light fixture hanger wires. (NEC 300-11, BICSI Standards). Cables shall not lie directly on light fixtures, electrical machinery, or air return ducts in the hung ceiling. Cables shall be installed at a minimum of 12 inches away from EMI inducing equipment. d. Do not exceed the cable pulling force and minimum cable bending radius. e. All cabling installed in a ceiling cavity shall be plenum rated, unless otherwise noted. f. All cabling installed underground in conduit shall be rated for wet conditions. g. When aerial cable is being considered as an option the following must be addressed: 1) The minimum height/clearances 2) Loading 3) Distance between support structures 4) Distance from power conductors 5) Grounding of messenger/suspension strand and guy wires 7 of 28
h. Flexible conduit for data/voice cabling is only permitted at power pole locations and in some cases in casework. i. Conduit for low voltage cabling shall be run overhead and not under/in slab whenever possible. When running under slab, the conduits shall be extended to the nearest data closet. j. All conduits shall have no continuous sections longer than 100 feet without a j-box. All conduits shall not have two 90 degrees or a reverse bend (U shape) between pull points without a pull box. k. Pull and splice boxes shall be labeled on the exposed exterior per TIA-606A. Labeling shall be easily visible. l. Suspended cable runs shall be supported every 5 feet or less and have a minimum 3 inch vertical clearance from the ceiling grid and tile. m. All copper and fiber optic cable bend radii shall be maintained per manufacturer and industry standards. 2. Execution a. BACKBONE CABLE INSTALLATION 1) All cables installed in the ceiling cavity shall be plenum rated, unless otherwise noted. 2) All trunk lines between separate buildings shall be in conduit. 3) A pull cord (nylon; 1/8 inch minimum) shall be co-installed with all cable installed in any conduit longer than fifteen (15) feet. 4) Where backbone cables and distribution cables are installed in a cable tray or wire way, backbone cables shall be bundled separately from the horizontal distribution cables. 5) All backbone cables shall be securely fastened to the sidewall of the Telecommunications Rooms on each floor with metallic D-Rings on the fire-rated plywood behind the data racks. 6) Backbone cables spanning more than three floors shall be securely attached at the top of the cable run with a wire mesh grip and on alternating floors or as required by local codes. 7) Vertical runs of cable shall be supported to messenger strand, cable ladder, or other method to provide proper support for the weight of the cable. 8) Large bundles of cables and/or heavy cables shall be attached using metal clamps and/or metal banding to support the cables. 9) Provide over voltage protection on both ends of cabling exposed to lightning or accidental contact with power conductors. 10) The use of plenum rated tie wraps are permitted in the ceiling cavity but not below ceiling. Below ceiling Velcro cable wraps are required. 11) Abandoned cables shall be removed port to port. 12) Refer to section 2 for additional cabling requirements for data cable and section 3 for coaxial cabling requirements. b. CATEGORY 6 HORIZONTAL CABLING 1) Horizontal cabling is installed in a star topology (homerun). 2) Bridged taps and splices are not permitted as part of the copper horizontal cabling. 3) All connectivity products such as patch panels, faceplates and data jacks shall be of the same manufacturer (see approved products list). 4) All cables installed in the ceiling cavity shall be plenum rated. All cables routing underslab shall be rated acceptable for wet spaces. 5) Telecommunications Contractor shall install all cabling according to latest industry standards, manufacturer s recommendations and best practices. 8 of 28
Cabling shall be installed in an orderly and neat manner. Cables shall be installed parallel and perpendicular to building lines. 6) Horizontal cables shall terminate to the closest Telecommunications Room (TR) on the same floor. Copper cabling shall not terminate on different floors other than Backbone Voice Cables. 7) Horizontal cable links shall not exceed 90 meters. 8) UTP cable shall be installed so that there are no bends smaller than 4 times the cable s outside diameter at any point in the cabling run and the termination area. If cables are kinked or the cable jacket is damaged during the installation, the cable will be removed and replaced with new cables at no additional cost to the Owner. 9) Pulling tension on 4-pair UTP cables shall not exceed 25-lbf for a four-pair UTP cable. 10) A pull cord (nylon; 1/8 inch minimum) shall be co-installed with all cable installed in any homerun conduit and conduits exceeding 2 in diameter. 11) Cable raceways shall not be filled greater than the TIA/EIA-569-B maximum fill for the particular raceway type or 40%. 12) Where transition points or consolidation points are required, they shall be located in accessible locations and housed in an enclosure intended and suitable for the purpose. 13) Slack required i. Data room 10 feet minimum for UTP 20 feet minimum for Fiber, not including the 15 feet of workable fiber wound inside fiber cabinet ii. Work area outlets 12 inch minimum for UTP iii. Access point locations 20 feet minimum for UTP 14) The ceiling cable support throughout most of the facility will be accomplished by utilizing open areas above ceilings and cable trays when available. If cable trays or sleeves are available, Telecommunications Contractor must use the cable trays and sleeves as their pathway, unless the Telecommunications Contractor has received formal approval from the Owner. All penetrations through walls or floors must be sleeved. In areas where support structure is not available, cables will be supported with metallic J-brackets at regular 4-5 foot intervals. Cables may only be supported by building structure when the cable spans do not exceed 5 foot intervals. Cables MAY NOT be supported on top of walls or I-beams or in areas where the cable is susceptible to damage or EMI. Cables shall not be attached to ceiling grid or lighting fixture wires. At no point shall cable(s) rest on acoustic ceiling grids or panels. When utilizing J-hooks, the Telecommunications Contractor shall neatly groom the cables with tie-wraps. 15) No cables shall run exposed. In areas of no accessible ceiling and where a pathway is not being provided by others, the Telecommunications Contractor shall provide the pathway. The pathway shall be EMT conduit in commons areas, or wiremold metallic raceway in classroom/office areas. Telecommunications Contractor shall provide all necessary sleeving of walls and floors where sleeves are not being provided by others. 16) All equipment and materials installed in plenum environment shall be UL rated acceptable for plenum environments. 17) Horizontal distribution cables shall be bundled in groups of no more than 40 cables. Cable bundle quantities in excess of 40 cables may cause deformation of the bottom cables within the bundle and degrade cable performance. This includes cable bundles supported in J-Hooks. 18) The use of plenum rated tie wraps are permitted in ceiling cavity only. Bundling cables below ceiling must be accomplished with Velcro cable wraps. 19) Cable shall be installed above fire-sprinkler systems and shall not be attached to the system or any ancillary equipment or hardware. The cable system and 9 of 28
support hardware shall be installed so that it does not obscure any valves, fire alarm conduit, boxes, or other control devices. 20) Telecommunications Contractor must ensure that TIA recommended minimum separation distances are maintained between the newly installed cabling and high-energy sources that may interfere with data transmission. Cables shall never come into contact with any ceiling grids or lighting sources or any devices that emit EMI. 21) Cables routing under slab shall be rated outside plant and provide water blockage. Upon exiting underground/slab conduits, the outdoor cable shall be transitioned to a plenum rated cable. This will be accomplished by placing transition point within 50 of the cable s entry into the building. 22) Provide over voltage protection on both ends of cabling exposed to lightning or accidental contact with power conductors. c. TELECOMMUNICATIONS ROOM (TR) 1) Data Racks a) Data racks shall be installed where there is a minimum 42 clearance behind the racks and a minimum of 36 in front of the racks. Racks shall have a minimum of 36 to the side of a rack to maintain access to the rear of the racks. Racks shall not be located under any equipment, pipes or ductwork that may cause condensation or possibly leakage. Consult with the CMS Telecommunications Department on rack lay-out if these conflicts are present. b) Racks shall be heavy duty EIA complaint nineteen (19) inch wide, seven (7) foot tall equipment racks, unless otherwise noted. Racks shall have a black finish. Side channels shall be drilled and tapped on both sides. c) Racks shall be anchored to type of floor being installed on with proper rack mount hardware from the rack manufacturer and approved for the rack installation environment. d) Racks to be secured overhead with minimum 12 wide runway and supported on runway elevation kits installed on the racks. Runway over the racks shall tie into other overhead perimeter runways installed around the inside of the telcom room. Or, they shall be directly tied to the telcom walls if perimeter runways are not available or possible to be installed in that particular environment. These runways are to be used to convey cables to racks for termination. e) Wall mounted termination block field s enclosures and racks shall be mounted on plywood backboards located in the telcom rooms and installed per manufacturer s recommendations. f) Unused rack equipment mounting screws shall be bagged and attached to the racks upon completion of the project. g) All racks shall be grounded to the telecommunications ground bus bar provided in each TR. h) Installation of all data racks and or wall racks or enclosures shall be coordinated with the CMS Telecommunications Department prior to installation. 2) UTP Cable Termination Hardware Each horizontal or backbone cabling run will be terminated using appropriate connectors or connecting blocks depending upon the cable type. Matching patch cords, provided by the Owner, unless otherwise noted, will be used to perform cross-connect activities or to connect into the networking/voice hardware. a) Cables shall be dressed and terminated in accordance with the recommendations made in the TIA-568-B standard, manufacturer's recommendations and best industry practices. b) Pair untwist at the termination shall not exceed.5. c) Bend radius shall not exceed 4 times the outside diameter of the cable. 10 of 28
d) Splitting the pairs prior to termination is not acceptable. e) Cables shall be neatly bundled and dressed into their respective panels or blocks with Velcro wraps. Each panel or block shall be fed by an individual bundle separated and dressed back to the point of cable entrance into the rack or frame. f) The cable jacket shall be maintained as close as possible to the termination point. g) Each cable will be clearly labeled on the cable jacket behind the patch panel. Labels shall be machine printed and clearly visible within the bundle. h) Backbone and horizontal voice cables shall be terminated on 110 blocks mounted on the fire-rated plywood behind the data racks. Provide 4 pair connecting blocks and completely populate the 110 blocks. A label holder will be utilized to protect the labels. Use metallic D-Rings as necessary for cable management. Size D-Rings to fit the application. i. Wall mounted termination block fields shall be installed with the lowest edge of the mounting frame 48 inches from the finished floor. i) Category 6 Unshielded Twisted Pair (UTP) i. Four-pair Category 6 UTP cabling shall be terminated onto a four-pair Category 6 module. All modules shall be terminated using the T568B wiring scheme. The eight position module shall exceed the connector requirements of the proposed TIA Category 6 standard. j) Patch panels shall be of the manufacture and part number as listed in these specifications. The patch panels shall be T568B wiring configurations when modular patch panels are not required. Rack mountable patch panels shall mount to standard EIA 19"W floor mounted data racks. Cables shall be neatly groomed with Velcro Integral cable ties. Port and panels shall be easy to identify with write-on areas. k) Cables routing from the wireless access points shall be terminated in a separate 24 port modular patch panel. The patch panels shall be clearly labeled Wireless. l) Cables routing from security devices to include ip security cameras, access controls, etc, shall mount in a separate 24 or 48 port modular patch panels. The patch panels shall be clearly labeled Security. 3) Fiber Termination Hardware a) All fiber optic terminations shall be accomplished by mechanical splicing. b) The terminated strands shall be secured within fiber optic enclosures installed at the top of the data racks or enclosures. Fiber slack shall be neatly coiled within the fiber splice tray or enclosure. c) Telecommunications Contractor will supply the appropriate number of fiber coupler panel blanks for each fiber enclosure where fiber optic terminations are not made. d) The cables strength member shall be securely attached to the cable strain relief bracket in the enclosure. e) Each fiber bundle shall be stripped upon entering the splice tray and the individual fibers routed in the splice tray. 4) Plywood Backboards a) Telecommunications Contractor to provide ¾ inch fire-rated plywood in 4 x 8 foot sheets. Do not paint. Install the plywood where the stamped rating is clearly visible. b) In Intermediate TR, plywood shall be mounted horizontally starting at 24 inches AFF and to approximately 110 above finished floor. Two walls shall be covered. c) In the Main TR (Equipment Room) plywood shall be mounted horizontally starting at 24 inches AFF to 110 above finished floor. 5) Cable Management 11 of 28
a) Horizontal and Vertical Wire Management shall be provided and utilized by the Telecommunications Contractor. The system provided shall be comprised of equipment to manage cables on both the front and rear of the rack. The Wire Management shall protect network performance by controlling bend radius and providing cable strain relief. b) All cable management channels shall have covers. c) Horizontal Wire Managers shall be above and below each patch panel and shall intersect with the Vertical Wire Managers seamlessly. Access shall be provided to the front and rear of the Horizontal Wire Managers. 6) D-Rings a) D-rings shall be metallic and used in areas where cables are not supported by cable runway or cable tray. b) The D-Rings shall be a minimum size of 4 inches. c) The Telecommunications Contractor shall be responsible for determining quantity and the placement of D-Rings at strategic points throughout the Telecommunications Room. 7) Grounding and Bonding a) Grounding shall be installed per NEC and TIA-607B and manufacturer s grounding requirements as minimum. b) Bond and ground equipment racks, housings, messenger cables, ladder racks, metallic raceways, and armored fiber with a #6 AWG stranded green insulated conductor. #12 AWG stranded insulated green conductor shall be used to bond surface mounted metallic raceways. However, in plenum areas, the grounding conductor shall be a bare, solid conductor for all grounding applications. Coordinate with Electrical Contractor. Electrical Contractor to bond or ground all pathways provided by Electrical Contractor. c) TMGB (Telecommunications Main Grounding Busbar) and TGB (Telecommunications Grounding Busbar) shall be provided by the Electrical Contractor unless otherwise noted. i. Electrical Contractor shall bond the TMGB to the electrical service equipment ground and to building steel with a #6 AWG green stranded conductor unless otherwise noted on the Electrical Construction Documents. ii. The TGB shall also be bonded to building steel by the Electrical Contractor. iii. All bus bars are to be pre-drilled bars and.25in thick x 4in wide and installed with 2in stand off insulators to preserve access to the rear of the bus bar. iv. TMGB shall be no less than 24in in width. v. TBG shall be no less than 12in in width. d) Provide a (1) one rack unit horizontal ground bus bar to be installed in the top of every data rack. Bond this bus bar back to the TMGB or TGB with a #6 AWG stranded green grounding conductor. e) Provide (2) hole exothermic weld lugs, or compression lugs for the grounding conductors. f) Cable trays and ladders racks shall be bonded back to a ground bus bar with a #6 AWG stranded green insulated conductor. Each section shall be bonded via a ground strap which shall be a 6 AWG stranded green insulated conductor with two hole compression lugs with ¼ holes. Straps shall be 11 in length. 8) Firestop a) All penetrations through fire-rated building structures (walls and floors) shall be sealed with an appropriate firestop system. This requirement applies to through penetrations (complete penetration) and membrane penetrations (through one side of a hollow fire rated structure). Any penetrating item i.e., riser slots and sleeves, cables, conduit, cable tray, and raceways that are 12 of 28
specifically designated for the data/video/voice infrastructure shall be properly firestopped. The contracting discipline installing the sleeve or slot shall be responsible for sealing the area on the exterior of the sleeve or slot. The Telecommunications Contractor shall be responsible for firestopping the interior annular area. b) Firestop systems utilized shall be dictated by this project s Professional Electrical Engineer s UL design. If a Professional Engineer s UL design is not available, the Telecommunications Contractor shall provide appropriate UL design for penetrations through rated walls and properly firestop penetrations. These documents shall be submitted to the Designer. d. WORK AREA OUTLETS 1) Cables shall be coiled in the in-wall or surface-mount boxes if adequate space is present to house the cable coil without exceeding the manufacturer s bend radius. Excess slack shall be loosely coiled and stored in the accessible ceiling above each drop location when there is not enough space present in the outlet box to store slack cable. 2) Pair untwist at the termination shall not exceed.5. 3) Bend radius of the cable in the termination area shall not be less than 4 times the outside diameter of the cable. 4) The cable jacket shall be maintained to as close as possible to the termination point. 5) Data/voice cables shall be terminated on a RJ45 jack. Colors shall be Blue cable and Blue jacks for data, Blue cable and Green jacks for voice within a modular faceplate. 6) The faceplate at each work area shall be capable of holding up to a minimum of one (1) RJ45 jack more than what is indicated on the Construction Documents except when using Wiremold 700, or equivalent. A blank cover shall be installed on all unused positions within each faceplate. All RJ45 jacks shall meet or exceed the TIA-568-B standard for Category 6. 7) Data jacks, unless otherwise noted in drawings, shall be located in the bottom position(s) of each faceplate. Data jacks in horizontally oriented faceplates shall occupy the right-most position(s). 8) Voice jacks shall occupy the top position(s) on the faceplate. Voice jacks in horizontally oriented faceplates shall occupy the left-most position(s). 9) 106 Frames, if required, shall be a 2 or 4 port frame that mounts onto U.S. NEMA standard junction boxes and wall board adapters with screw-to-screw dimensions of 3.28" (83.3mm) and behind NEMA standard 106 duplex electrical faceplates. Frame shall accept individual modules that can be individually inserted and removed as required. 10) For surface mounted raceway equivalent to Wiremold 4000 and power poles, provide angled connector faceplates. Telecommunications Contractor to provide all necessary fittings and additional materials to adhere to manufacture s installation guidelines. 11) Provide blank cover plates for all unused Telecommunications Outlets. 12) Telecommunications Contractor provided surface mounted metallic raceway shall be bonded to building steel utilizing a #12 AWG green conductor. e. WIRELESS A wireless data and voice infrastructure shall be installed as an overlay to the cabling infrastructure. CATEGORY 6 cables shall be pulled to various areas throughout the building(s) for access points to insure adequate coverage for the entire campus. 1) Cabling to the access points shall follow all standards and the latest versions of all industry standards and guidelines. 2) Cables shall be pulled to designated access point locations and have 20 of slack coiled above ceiling and labeled. In areas of no accessible ceiling, conduit or 13 of 28
metallic raceway shall be installed to conceal cables and a junction box shall house the slack. 3) Wireless coverage to include entire campus indoors and in some cases some of the exterior campus. 4) The Category 6 horizontal cable for wireless access points shall be terminated in ceiling with a Yellow RJ45 jack. 5) The cable color for the Wireless system shall be Yellow. f. COAXIAL CABLING 1) Summary a) All Broadband Video (radio frequency) amplifiers and pre-amplifiers shall be produced by a single manufacturer. All connectivity products shall be produced by a single manufacturer. b) Radiation/signal leakage of the completed system in full operation shall comply with current FCC requirements. 2) System Functions and Capabilities a) The Broadband Video Distribution System shall provide for the acceptance and distribution of signals originating as follows throughout the complex to each Video Display/TV outlet location: b) Local Cable TV System c) Programming/Video originating at any receiver outlet by using an Owner provided sub-band modulator and sub-band converter modulator d) Programming/Video originating at the television console unit e) System provided shall have the capability of functioning effectively from Channel 2 (54 MHz) through Channel 78 (552 MHz) f) All passive equipment necessary for the Broadband Video Distribution System shall be located in the Telecommunications Rooms and the corridor ceilings. Taps and splitters shall be secured to cable tray if at all possible. A single coaxial cable (Series 6 or Series 11) shall extend from the Taps/Splitters to each room outlet. All active equipment shall be installed in the Telecommunications Rooms g) The Broadband Video Distribution System shall furnish a minimum level of zero (0) db to a maximum level of ten (10) db across the total channel range at each outlet. The system shall pass all cable channels available without degradation of intelligence and color fidelity. 3) Horizontal Distribution Cabling: a) The horizontal distribution cabling system for this standard is the portion of the telecommunications cabling system that extends from the outlet to the Telecommunications Room (TR). b) Horizontal Distribution Cable Installation i. Coaxial Cables Cable shall be plenum rated Series 6 (RG-6 type) coaxial cable and plenum rated Series 11 (RG-11 type) coaxial cable, unless installed under slab, or in an outdoor environment. Cables installed underslab or outdoors shall be rated Outside Plant, or Direct Burial and provide water blockage. All coaxial cable shall conform to the standards requirements of the Society of Cable Telecommunications Engineers specifications for Flexible RF Drop Cable. Quad shielded Series 11 coaxial cable may be necessary in some applications to obtain desired signal levels. 1. All coaxial cable shall be 75+/- 3 ohm and factory tested for Structural Return Loss to 1000 MHz. ii. Cable shall be installed in accordance with manufacture s recommendations and best industry practices. It shall be installed in a neat and professional manner, ensuring adherence to manufacture s 14 of 28
specifications for bending radius, maximum tensile load, and cable termination specifications. iii. A pull cord (nylon; 1/8 inch minimum) shall be co-installed with all cable installed in any homerun conduit and conduits exceeding 2 in diameter. iv. Cable raceways shall not be filled greater than the TIA-569-B maximum fill for the particular raceway type or 40%. v. Cables shall be installed in continuous lengths from origin to destination (no splices) except were noted on Construction Documents. vi. The ceiling cable support throughout most of the facility will be accomplished by utilizing open areas above ceilings and cable trays when available. If cable trays or sleeves are available, Telecommunications Contractor must use the cable trays and sleeves as their pathway. All penetrations through walls or floors must be sleeved. In areas where support structure is not available, cables will be supported with metallic J-brackets at regular 4-5 foot intervals. Cables may only be supported by building structure when the cable spans do not exceed 5 foot intervals. Cables MAY NOT be supported on top of walls or I-beams or in areas where the cable is susceptible to damage. Cables shall not be attached to ceiling grid or lighting fixture wires. At no point shall cable(s) rest on acoustic ceiling grids or panels. When utilizing J- hooks, the Telecommunications Contractor shall neatly groom the cables with tie wraps. vii. No cables shall run exposed. In areas of no accessible ceiling and where a pathway is not being provided by others, the Telecommunications Contractor shall provide the pathway. The pathway shall be EMT conduit in common areas, or Wiremold metallic raceway in classroom/office areas. viii. All equipment and materials installed in plenum environments shall be UL rated acceptable for plenum environments. ix. Cables shall be installed above fire-sprinkler systems and shall not be attached to the system or any ancillary equipment or hardware. The cable system and support hardware shall be installed so that it does not obscure any valves, fire alarm conduit, boxes, or other control devices. x. Any cable damaged or exceeding recommended installation parameters during installation shall be replaced by the Telecommunications Contractor prior to final acceptance at no cost to the Owner. xi. Provide over voltage protection on both ends of cabling exposed to lightning or accidental contact with power conductors. 4) Telecommunication Room The Telecommunications Room (TR) includes those products that connect the CATV equipment to the horizontal and backbone cabling. These products include termination hardware (connectors), taps, splitters, couplers and amplifiers. a) Termination Hardware i. Connectors, splitters and directional couplers shall provide 100% shielding. b) Lightning Protection i. Provide over voltage protection on entrance cables from CATV provider. c) Distribution Equipment i. All distribution equipment shall be mounted on plywood backboard in the Telecommunications Room. If a plywood backboard is not currently installed, Telecommunications Contractor is to provide one 4 x 4 foot x ¾ inch thick fire-rated plywood mounted at 48 inches AFF. Plywood shall be not be painted and the stamped fire-rating label shall remain clearly visible. 15 of 28
ii. Distribution Amplifiers: Furnish and install at the main distribution area a distribution amplifier(s) with a minimum frequency range of 47-750 MHz. Amplifiers shall be mounted in a vertical position. iii. AC Power for the CATV distribution areas shall be furnished from a 120 VAC, 20 amp circuit. If the project is a renovation or upgrade, coordinate power for main distribution equipment with CMS Telecommunications Department. iv. Channel Elimination Filters: Furnish and install a channel elimination filter with a frequency range of 50-750 MHz and install in the MC. v. All jumpers shall be no less than 24 in length. d) Connectors i. All connectors must be cable system approved and provide 100% shielding. All connectors shall be F type for Series 6 and 11. The Series 11 (RG-11 type) F shall be of the type that adapts the center conductor to a standard size pin in the female F connector. All connectors shall be of the same manufacturer. e) Outlets i. Furnish and install an F type self-terminating faceplate connection at each outlet location. Plates shall match adjacent convenience outlet ii. plates in material and finish. Cables shall be coiled in the in-wall or surface-mount boxes, if adequate space is present, to house the cable coil without exceeding the manufacturers bend radius. Excess slack shall be loosely coiled and stored in the accessible ceiling above each drop location when there is not enough space present in the outlet box to store slack cable. iii. Cables shall be dressed and terminated in accordance with the recommendations made in the TIA/EIA, manufactures recommendations and best industry practices. iv. Bend radius of the cable in the termination area shall not be less than 10 x the cable s outside diameter for Series 6 and Series 11. v. 106 Frames, if required, shall be a 2 or 4 port frame that mounts onto U.S. NEMA standard junction boxes and wall board adapters with screwto screw dimensions of 3.28 (83.3mm) and behind NEMA standard 106 duplex electrical faceplates. Frames shall accept individual modules that can be individually inserted and removed as required. vi. For surface mounted raceway equivalent to Wiremold 4000 and power poles, provide angled connector faceplates. Telecommunications Contractor is to provide all necessary fittings and additional materials to adhere to manufacturer s installation guidelines and to protect the cables. vii. Slack required 1. Data room-10 feet minimum for Series 6, Series 11 2. Outlet 12 inch minimum for Series 6, Series 11 f) Distribution Amplifiers i. Amplifiers shall be installed in the Telecommunications Room, and wall mounted on ¾ fire-rated plywood. 5) BACKBONE CABLE INSTALLATION a) All cables shall be plenum rated, unless otherwise noted. b) A pull cord (nylon; 1/8 inch minimum) shall be co-installed with all cable installed in any conduit. c) Where backbone cables and distribution cables are installed in a cable tray or wire way, backbone cables shall be bundled separately from the horizontal distribution cables. 16 of 28