Comm_Distribution_system_Standards.doc

PATRICK AIR FORCE BASE

COMMUNICATION DISTRIBUTION SYSTEM STANDARDS

1 PART 1 - GENERAL

1.01

REFERENCES

1. ANSI/EIA/TIA 568 – Commercial Building Telecommunications Cabling

2. ANSI/EIA/TIA 569 – Commercial Building Standard for Telecommunications Pathways and Spaces

3. ANSI/EIA/TIA 606 – The Administration Standard for the Telecommunications Infrastructure of Commercial Buildings

4. ANSI/EIA/TIA 607 – Commercial Building Grounding and Bonding Requirements for Telecommunications

5. TSB-67 – Transmission Performance Specifications for field testing of Unshielded Twisted-Pair Cabling Systems

6. TSB-75 – Additional Horizontal Cabling Practices for Open Offices

7. BICSI – Telecommunications Distribution Methods Manual

8. National Fire Protection Association (NFPA)

NFPA 70 National Electric Code NFPA 10 Life Safety Code

9. American National Standards Institute (ANSI)

ANSI C2 National Electric Safety Code

10. Rural Electrical Association (REA)

REA PE-80

Gas Tube Surge Arresters

11. Unified Facilities Criteria UFC-3-580-01- Telecommunications Building Cabling Systems Planning and Design.

12. Unified Facilities Guide Specifications (UFGS)-27 51 16 Radio and Public Address System

13. Engineering Technical Letter (ETL) 02-12 – Communications and Information System Criteria for Air Force Facilities.

14. Engineering Technical Letter (ETL) 11-12 – Grounding, Bonding, Testing, and Recordkeeping for Communications Facilities.

15. Federal, state, and local codes, rules, regulations and ordinances governing the work shall be followed. If the contractor should note items in the drawings or specifications, construction of which would be code violations, promptly call them to the attention of 45 SCS/SCXPX representatives in writing. Where the requirements of other sections of the specifications are more stringent than applicable codes, rules, regulations and ordinances, the specifications shall apply.

1.02

SYSTEM DESCRIPTION

The premises distribution system shall consist of inside-plant horizontal, tie, and backbone cables and connecting hardware to transport voice, data, and video signals between equipment items. Distribution systems shall also include underground service entrance of fiber optic and copper cables (as directed by 45 SCS/ SCXPX) from the entrance facility point to the nearest communication connection point.

1.03

QUALIFICATIONS

A. Work performed under this section shall be completed by a BICSI certified telecommunications contractor. The contractor shall use experienced installers who have qualifications of a certified Category-5e/6 and/or fiber optic cabling technician. An experienced installer shall be defined as one having satisfactorily completed a minimum of five previous projects, similar in size to this project. Contractor shall ensure all manufacture warranties are not violated through uncertified installers.

B. The contractor shall include a communications cabling and distribution system as part of the building design. The system shall be considered as part of the building structure and shall be included in all construction design reviews. The contractor shall employ, directly or through a subcontract, qualified communications engineers who are certified as Registered Communications Design and Distribution (RCDD) engineers by the Building Industry Consulting Services International (BICSI).

C. The contractor shall furnish, install, and test the Government approved communications cabling and distribution system. The contractor shall employ, directly or through a subcontract, qualified communications technicians to install and test all the components of the communications cabling and distribution system.

1.04

TESTING

All cable runs shall be tested to the accuracy level II requirements described in TIA/EIA TSB 67. An experienced installer, as defined in paragraph 1.03.A, shall perform all testing. At a minimum, testing shall consist of wire map, length, attenuation, and near-end cross-talk (NEXT) loss. There shall not be any defective pairs in the final installation of the telecommunications cabling. Testing shall be performed with both ends terminated, per section 4 of TIA/EIA TSB 67.

1.05

SUBMITTALS

A.

As-built drawings are required for all voice, data, and video systems housed in new or newly renovated facilities. The Air Force requires as-built drawings for all military air field systems, video teleconferencing systems, audio and video distribution systems, all radio systems such as Land Mobile radio (LMR), Microwave Radio, and Radars. Permanent Public Address Systems require as-built drawings when they interface with the base telephone system. Cable television requires as-built drawings when distributed over the base network. As-built drawings are not required for security, fire alarm, and environmental monitoring systems if they don’t interface with the base network. As-built drawing shall be delivered in Microsoft Visio, and Adobe Acrobat PDF formats.

B.

As-built drawings shall locate the placement of equipment racks, wireless devices and LAN outlets, ducts, cable trays and cable ladders, on established floor plans. Elevation drawings shall show the final two-dimensional appearance of the communication equipment installed, and these demographics shall be greater than a rectangle but considerably lower than a digital photo, and be identified by rack units, by name, by manufacturer, and by model. A basic line-diagram (cables) shall show end-to-end connectivity between pieces of hardware or equipment items, thereby demonstrating the system will function properly. The as-built drawings shall depict the design and building of a telecommunications cabling system. Site plans and floor plans shall show overhead or underground service entrances, maintenance holes, handholes, conduit sizes, conductor sizes and type, number of pairs and fibers, and physical locations and layout of telecommunication entrance facilities, telecommunications equipment rooms, building distributers, floor distributers, and telecommunications outlets. The final communication as-built drawings must be 98% accurate and delivered to the 45 SCS/SCXP before the AFTO Form 747 is presented for required signatures listed in blocks 11, recommending 45SCS Commander (CSO) accept contractor services provided.

C. Detail records shall include a complete list of equipment and materials.

D.

Cable test results in report form shall show witness signatures verifying execution of tests. Test results shall be provided on CDROM/DVD disk in MS Word or MS Excel format. Reports shall show the field tests performed to verify compliance with the specified performance criteria. Test reports shall include record of the physical parameters verified during testing. Test reports shall be submitted to 45 SCS/SCXPX within 7 days after completion of testing. Testing shall be in accordance with government-approved procedures to verify proper operation in the presence of the cognizant Air Force Technical Officer Representative (TOR).

E.

Commercial manuals shall be furnished for operation, installation, configuration, and maintenance of all products provided as part of the premises distribution system. Specification sheets for all cable, connectors, and other equipment shall also be provided.

PART 2 - PRODUCTS

2.01 Cabling and Termination A. New construction horizontal cabling shall be four-pair, 100-ohm, unshielded twisted-pair (UTP), Category-6 rated, specified to handle transmission speeds of 250 MHz (minimum). The use of Teflon insulated, plenum rated Category-6 cable is acceptable for both plenum and non-plenum applications. When Teflon insulated plenum rated cable is used, it shall be Type 4X0 (type 3X1 and 2X2 are not acceptable). All cable shall be level verified and cable jackets shall be factory marked at regular intervals identifying type and performance level. Facility renovation where cabling replacement is less than 1/3 of the infrastructure may replace with similar cable. Renovations that exceed the 1/3 replacement rule shall use Category-6 or higher.

B. All connecting hardware shall meet Category-6 performance rating requirements and be marked accordingly by the manufacturer. Wall outlet assemblies shall be Category-6 rated and shall have a minimum of four RJ-45 type plugs. Modular outlet jack inserts shall be 8-pin, 8-position, RJ-45 type, color-coded, 110-type, Insulation Displacement Connection (IDC) connectors. The faceplate shall also have a built-in cover for label inserts

C. Category-6 rated, 19-inch or 23-inch (as required by 45 SCS) patch panel shall be installed with attached front and back wire management devices. The front panel shall consist of 8-pin, 8-position, RJ-45 connections. The rear panel shall consist of color-coded, 110-type IDC.

D. All common communication components shall be Category-6 rated, and wired to the T568B configuration.

E. Backbone cable type shall consist of one (or more) of the following types: Multi-mode 62./125-micron or 50/125-micron (laser optimized) fiber optical cable (normally inside building use), single-mode fiber optic cable, 150-ohm shielded twisted pair or 25 pair power-sum Category-6. In any case, the type of cable or connectors to be installed will be approved by 45 SCS/SCXPX. Fiber terminations shall use the LC or SC type connectors to unclassified patch panel and SC connectors for the classified patch panels.

F. Unless otherwise stated, exterior copper cable shall be gel filled, polyethylene insulated conductor cable (PIC), sized to fit the square footage of the facility.

G. Coaxial cable systems shall be RG-11 cable for OSP use and CAT-6 UTP cable for inside use. The cable shall utilize “F” and RJ-45 type plug/connectors, balance to unbalance (BALUN) adapter, line splitters, couplers, fittings, and wall mounting faceplates as needed. RG6 coaxial cable maybe used on existing cable infrastructure if approved by 45SCS.

2.02 Equipment

A. Public Address System shall be designed and installed in accordance with UFGS-27 51 16 Radio and Public

Address System.

B. Supervisory Control and Data Acquisition (SCADA) Systems – Please refer to 45CES. The system shall follow the network installation practice when the system is connected to the base network infrastructure.

PART 3 - EXECUTION

3.01 Horizontal Cable System

A.

Cabling systems shall allow for one telecommunications outlet (quad drop) at every point where an electrical outlet is placed. All telecommunication outlets shall be located on the opposite side of the same stud as the electrical outlet. If electrical outlets do not exist, a minimum of one telecommunication outlet (quad drop) shall be installed for every ten (10) linear feet of office space/planned cubical space. A telecommunication outlet () is defined as a minimum of two Category-6 cables with a pull string installed.

B.

Wiring

1. All copper and fiber optic cable runs shall be in compliance with TIA/EIA-568-A and EIA/TIA-569. All cabling runs shall have one side terminated to the wall outlet and one side terminated to the appropriate patch panel in a star topology. Horizontal wiring shall be supported from end-to-end with the proper use of D-rings, J-hooks, cable trays, and/or ladder racks (depending on the quantity of cable to be installed). Ensure a slack (10 feet) is provided at the rack/patch panel termination point to provide for future service, repair, and relocation.

2. All single copper cables, not enclosed in metallic conduit or ducts, shall maintain at least 8 inches separation from parallel runs of conduit containing power cables. All copper cable bundles, not enclosed in metallic conduit or ducts, shall maintain at least 12 inches separation from parallel runs of conduit containing power cables.

3. The installed cabling system shall be color-coded, machine printed labeled, and documentation in compliance with TIA/EIA-606.

4. All Category-6 cabling and associated connectors shall be configured to the T568B wiring configuration listed in TIA/EIA-568-A.

5. The connecting hardware used for UTP cabling shall be installed to provide minimal signal impairment by preserving wire pair twists as close as possible to the point of mechanical termination. The amount of untwisting in a pair, as a result of termination to connecting hardware, shall be no greater than ½-inch for Category-6 cables.

6. A laminated floor plan showing the facilities final cable distribution runs, with associated labeling, shall be mounted in each telecommunication room.

C.

Patch Panels and Equipment Racks

1.

All equipment racks and/or cabinets shall be either 19-inch or 23-inch in wide (as required by 45 SCS). They shall be bolted to the floor in such a manner to allow a 36-inch clearance from the front and back of installed end equipment to the nearest obstacle (wall, door, other equipment items, etc). A minimum side clearance of 24 inches shall be provided on end racks. Provide 100 percent spare rack capacity based on the amount of rack capacity utilized by the patch panels provided. Cooling fans shall be provided in all equipment cabinets. Wall mounted racks and patch panels may be installed to support smaller installations when approved by 45 SCS/SCXPX.

2.

Each rack shall be hardwired with two 20 AMP and/or 30 AMP dedicated power outlets to support the required equipment as specified.

3.

All patch panel configurations shall be in a common setup/configuration with no difference between voice and data.

4. All equipment racks and/or cabinets shall be grounded to the grounding bus bar (see para 3.06).

D. Cable Trays/Ladders

Solid bottom, slotted bottom, or welded wire cable tray shall be used to provide a centralized cable management/distribution system. Provide 1 square inch (650 sq mm) cross-sectional area of the tray or wireway for each outlet location served. Cable trays shall be designed to accommodate a maximum calculated fill ratio of 50% to a maximum inside depth of 6 in (150 mm). Ladder cable tray should be avoided for horizontal distribution. Provide 12 inches of clearance above cable trays for future access. Designers shall coordinate with other disciplines to insure clearances can be achieved. Cable ladders shall not be used in lieu of cable trays. All metallic cable trays shall be bonded to the ground busbar. Individual sections of the cable tray run shall be bonded together.

E. Enclosed Duct (Raceway) When a building design does not provide for installation of cable tray, enclosed square duct may be installed. Enclosed duct may also be used in place of cable tray when cable plant requires physical security. For initial design guidance, provide 650 sq mm (1 sq inch) of cross-sectional area of the enclosed duct per outlet location. During actual design, the designer must plan for an optimal fill ratio of 40%. Under no circumstances must a fill ratio of 50% be exceeded. Provide 12 in (300 mm) of clearance above cable trays for future access, as per TIA/EIA-569-B paragraph 4.5.6.2.

F. Conduit

1. Electrical metallic tubing (EMT) conduit shall be installed from the cable backbone distribution system, whether cable tray or enclosed duct, to each outlet or installed from a receptacle box into an accessible ceiling space directly above the receptacle box (stub-up). Conduit for standard outlets shall be a minimum of 1-inch (27 mm) EMT conduit. Conduit runs shall be placed at every point where an electrical outlet is installed in the facility.

2. All installed EMT conduit runs shall be limited to the equivalent of no more than two 90-degree bends. The inside radius of a bend in conduit shall be at least 6 times the internal diameter. When the conduit size is 2-inches or greater, the inside radius of a bend shall be at least 10 times the internal diameter of the conduit. For fiber optic cabling, the inside radius of a bend shall always be at least 10 times the internal diameter of the conduit.

3. An optimal conduit fill ratio of 40% should be accommodated for conduit. Under no circumstances shall the designer exceed a fill capacity ratio of 50%. No more than four, four-pair cables may be in a 1 in (27 mm) conduit. designated in the table. Conduits shall be bonded to either the telecommunications main grounding busbar (TMGB), to a telecommunications grounding busbar (TGB), where present, or to the cable tray. Stub-up/stub-out conduits are generally not grounded.

G. Pull Boxes

Pull boxes shall be placed in conduit runs where a continuous conduit length exceeds 100 feet, or where there are more than two 90-degree bends. Pull boxes shall be placed in straight runs of conduit and not be used in lieu of a bend.

H. Non-continuous Cable Supports Provide suitable supports that provide a continuous accessible pathway for cables not supported by conduit or cable tray. Non-continuous cable supports shall not be used in lieu of the cable tray system. Non-continuous cable supports (J-hooks, etc.) shall be specifically designed to support category-rated cabling. Supports shall not exceed 20 cables or 50 percent of the fill capacity, whichever is less. Spacing between supports shall not exceed five feet.

I.

Workstation Outlet and Faceplate The following specifications pertain to telecommunications outlets and connectors:

1. Specify double gang electrical boxes of at least 2-1/8” (54 mm) depth to provide dedicated space for current and possible future fiber optic cable installation. For single connector outlets, such as voice-only, cable television (CATV) or closed circuit television (CCTV), use a single gang 2” by 4” by 2-1/4” (51 mm x 102 mm x 57 mm), electrical box recess mounted, with the faceplate flush with the wall surface. Locate a service power outlet within 6 inches (152 mm) of all outlets. The power outlet circuits must be based on a loading assumption that each location of two duplex receptacles will power one personal computer with a monitor along with typical office appurtenances such as task lights; also assume that there will be no diversification of this load.

2. Use a full (double gang) faceplate for standard administrative outlet locations, with connectors for all copper and (if used) fiber optic cable. Standard administrative outlets may, by specific user request, use single gang outlet faceplates in conjunction with a reducing ring. For single gang outlet boxes, use a single gang outlet faceplate with appropriate connector locations and, if required, mounting lugs for wall phones. Outlet faceplate must include two blanks position for future applications.

3. The following specifications pertain to copper, fiber optic and coaxial cable outlet/connector. The category for cable, jacks, termination blocks, and patch panels must be the same throughout each circuit and system. Specify more than one category only if providing more than one system requiring different categories.

J.

Labeling

The telecommunications systems labeling shall be done in accordance with TIA/EIA 606-A-1 per the Unified Facilities Criteria (UFC-3-580-01) accepted by the Air Force in June 2007. It is desirable that all facilities conform to one unique labeling scheme described below. All designations shall be done in standard commercial labeling, and no handwritten labels are to be used.

1. Rack Identifiers.

The network rack/cabinet closet to the North-side of the building, and on the first floor of a building, is named rack “11”. If this building has a second communications room, though further from the North side, and on the same floor, it is named rack ‘12”, and so on, in parallel until the buildings South-side is reached. If there is a second network rack or cabinet within a communications room, the first rack (11) remains “11” and the second rack accepts a third character as “A” (making the second rack “11A”). The third network rack is identified as “11B”, etc. This naming convention is read from the front of the racks, from left to right; and this means the rack names could be ascending as you move further from the communications room door, or ascending in the opposite direction depending on which way the racks are facing in the room. If the technology changes inside the communications room, the conventional sequential numbering system is employed for that particular rack or cabinet. Figure 1. Illustrates the typical naming of racks in very small telecommunications rooms, when the cabinets and racks are of various sizes and placement. In a small space that contains just a few racks, wall cabinets and floor mounted racks containing other-than network technology are named by a sequential rack number as counted from the door to the back of the room.

Figure 1. Rack Identifier Example.

For multiple floor buildings, each telecommunications space has a unique identifier where the first numeric character identifies the floor of the building, and the second character identifies the rack or cabinet closets to the North-side of the building, as shown below in Figure 2.

Figure 2. Rack Identifier Example.

2. Patch Panel Labels Patch Panels within a named rack are identified by a capital letter, in ascending sequence from the top downward, as shown below in Figure 3. The patch panel’s full identity shall include the rack identifier plus the letter, with no spacing between these two identifiers. Ports on patch panels shall be identified by sequential numbering, and should be numbered in ascending order by the manufacturer. For patch panels that include subpanels, the separation between subpanels is ignored, and the ascending sequential numbering remains uninterrupted. When a rack is converged with both telephone patch panels and data patch panels, the numbering of ports between patch panels is interrupted only by the placement of additional patch panels. In all cases, the next patch panel causes the count to restart at one.

3. Outlet Labels Outlet shall be labeled in accordance with TIA/EIA-606-A-1, or the newer version. The options within this national standard, for use by the 45 Space Wing. Each outlet location shall be labeled with a unique designator, in sequence starting with “1” and proceeding clockwise around the room. The numbering of outlets starts at twelve o-clock which is north, and continues clock-wise around a room. The numbering of outlets shall ascend as read from left-to-right across the floor plan. The jack box itself is identified with the name of the rack number and the patch panel letter (with no space between these two designators).

In Figure 3 for fiber optic connections, the left or top fiber optic connection should be labeled “A” and the right or Bottom fiber optic connection should be labeled “B.” are shown below in Figure 3. When outlets within a jack box are converged, the top left outlet connector should be designated for voice and be labeled “VOICE” for example, “11B 1A / 11B 1A”. The right or bottom connector should be designated for data and be labeled “DATA for example, “11B 3B / 11B 3B”.

4. Cable Labels The most critical portion of the cable naming convention is to start with the point of origination, which is the official Base - Building # - Patch Panel Designator - Outlet #, for example, “PAFB-B1624-11B”. However, horizontal cabling for Inside Cable Plant occurring internal to the same building will not need to include the building number on the cable labels. Each horizontal cable is labeled on both ends with an identifier that locates its termination point by the format of “near end/far end”. The horizontal cable name, or cable label format, for example, “11B 3B / 11B 3B” and is shown below in Figure 3.

Figure 3. Patch Panel, Outlet, and Cable Labeling Example.

3.02 Building Backbone Cable

A.

Facility backbone cable shall be installed to connect entrance facilities, equipment rooms, and telecommunication closets. Reference: UFC-3-580-01, para 2-4.2.

B.

Backbone systems shall use a physical star wiring topology and have no more than two (2) levels of cross-connects to reach the highest level (i.e. main cross-connect, intermediate cross-connects, and horizontal cross-connects are acceptable).

C.

Appropriately sized conduit and/or raceway system shall be used to protect backbone cables.

3.03 Telecommunications Closets/Rooms and Entrance Facility

A.

Design requirements shall comply with all applicable EIA/TIA-569 sections dealing with telecommunications closet, equipment room, and entrance facilities. The telecommunications closet/equipment room/entrance facility shall be as close to the core of the facility as possible and house only equipment directly related to the telecommunications system and its environmental support systems.

B.

The TRs shall be sized IAW TIA/EIA-569-B for all new construction projects with a primarily administrative function. (Small, mixed-use facilities shall not require full compliance with TIA/EIA-569-B.) Generally, the TR shall be sized to approximately 1.1 percent of the area it serves. For example, a 10,000-square foot (1,000-square meter) area shall be served by a minimum of one 11-foot x 10-foot (3.4 m x 3 m) TR. Facilities with requirements exceeding those of the average administrative building (i.e., C2 facilities, etc.) shall require TRs sized to approximately two percent or more of the area served.

C. Large floor areas shall be divided into “serving areas” with TRs for each serving area. Each serving area can be no larger than 10,000 square feet (1,000 square m) as stipulated in TIA/EIA-569-B. The TR sizing allowances shall be made only in cases of construction projects involving building renovation, and under most circumstances a TR shall not be smaller than 10 feet x 8 feet (3 m x 2.2 m). The designer shall avoid irregular-sized TRs, such as narrow rooms or odd shapes. TRs shall not contain windows. Adequate space shall be provided in TRs to facilitate tenant-owned telecommunications system support equipment requirements in tenant-installed freestanding cabinets or racks. Total TR space (as a percentage of the building’s area) shall be scaled upward to reflect the increased number of circuits in buildings with more than the standard number of circuits to each workspace. Smaller building TRs are covered in TIA/EIA-569-B.

D. The designer shall consult with the architectural designer or facilities engineer if the TR is to house Voice over Internet Protocol (VoIP), wireless, PoE, or large numbers of network switches. The architectural designer may have to compensate for the additional rack space required to house the VoIP and PoE equipment, uninterruptible power supply (UPS), and servers supporting VoIP and wireless systems.

E. A minimum of one Telecommunications Room (TR) shall be provided per floor. Additional rooms shall be provided if the horizontal distribution distance to the workstation exceeds 90-meters (295-feet). A minimum of three 4-inch conduits shall be provided between floors to each telecommunications room, aligned in a vertically stacked pathway. The equipment room shall be connected to the backbone pathway. Based on the size of the backbone pathway, it may be necessary to install fiber optic cabling between distribution points.

F. A minimum of two adjacent walls shall be covered with rigidly fixed ¾-inch (20 mm) A/C grade plywood, 8 feet high, capable of supporting attached equipment, mounted 8-inches above the finished floor. Plywood shall be finished with two coats of fire resistant paint. Finishes shall be light in color to enhance room lighting. Flooring materials shall have anti-static properties. False ceiling are not permitted within communication closets or entrance facilities. Louvered doors shall not be used when telecommunication closet or entrance facility is located on exterior of building.

G. Lighting shall be a minimum of 540 lx (50-foot candles) measured 3-feet above the finished floor, mounted a minimum of 8.5 feet above finished floor. Lighting fixtures shall not be powered from the same electrical distribution panel as the telecommunications equipment.

H. A minimum of two dedicated 20 and/or 30 AMP (as specified), 110 V AC duplex electrical outlets, each on separate circuits, shall be provided for equipment power. Each electrical outlet shall be placed immediately below, and centered, on each section of attached plywood, and/or rack mounted. A separate supply circuit shall be provided and terminated in its own electrical panel. If an emergency power source is available in the building, the equipment room panel shall be linked to the emergency supply. In addition, convenience duplex outlets shall be placed at 6-foot intervals around the perimeter walls, at a minimum height of 6-inches above the finished floor

I. HVAC shall be provided on a 24 hours-per-day, 365 days-per-year basis. If the building system cannot ensure continuous operation for equipment applications, a standalone unit shall be provided for the telecommunications equipment room. The temperature and humidity shall be controlled to provide continuous operating ranges of 64ºF to 75ºF with 30 percent to 55 percent relative humidity. Humidification and dehumidification equipment may be required depending upon local environmental conditions. A positive pressure differential with respect to surrounding areas shall be provided.

3.04 Exterior Conduit, Cable and Manhole System

A.

Exterior Conduit System

1.

An underground service entrance pathway shall be provided to support the base distribution system. The minimum size of this pathway shall consist of 4-inch conduits. A minimum of three conduits shall be provided from the entrance facility to the nearest service connection point. Exact number and size of conduits will depend on total footage of the facility and shall be in compliance with EIA/TIA-569. At least one conduit shall have three inner ducts installed, each with nylon pull cords. The other conduit(s) shall also contain a nylon pull cord. Bends in conduit shall be limited to the equivalent of no more than two 90-degree bends.

2.

The minimum depth of a trench shall allow 36-inches of cover from the top of the conduit to the final grade. Joint-trenches (comm, power, gas, etc.) can be used provided appropriate separation is maintained. Orange metallic tracing tape must be laid/installed prior to back filling the trench. Buried cable markers shall be installed a minimum of every 60 feet.

B.

Fiber and Copper cable

1.

A minimum 12-strand, single-mode, loose buffer tube-type fiber optic cable shall be provided and installed from the facility entrance point to the nearest fiber service connection point. More fiber strand can be installed depending on the user’s requirement (e.g., datacenter, Information Transfer Node, End Building Node). A small amount of slack (15-feet to 20-feet) at each end of the cable shall be provided for future service, repair, and relocation. All fiber strands shall be terminated at the equipment rack patch panels using LC or SC type connectors for unclassified network and SC type connectors for classified network.

2.

Exterior copper cable shall be gel filled, polyethylene insulated conductor cable (PIC), sized to fit the square footage of the facility. Cable shall be provided and installed from the facility entrance point to the nearest copper service connection point. A small amount of slack (15-feet to 20-feet) at each end of the cable shall be provided for future service, repair, and relocation. All copper pairs shall be spliced using surge protection modules (when applicable) and standard 110 or 66 blocks bolted to the entrance facility backboard.

3. Fiber optic cable tag format shall be identified in figure 4.

Figure 4. Cable Tag Format

C.

Manholes

1.

Dedicated telecommunication manhole(s) and/or hand hole(s) shall be installed to optimize the use of existing base infrastructure.

2.

All telecommunication manholes and pull boxes shall be clearly marked with the word "Communications" on the cover. The interior shall include all galvanized hardware needed for organized placement of cable and splicing components.

3.

Manholes/pull boxes shall be pre-cast and sized to meet maximum conduit/cable requirements for the size of the facility.

3.05 CATV Distribution Systems

A. The cable system shall consist of CAT-6 cable and shall be capable of transmitting UHF and VHF television signals from the base commercial cable television carrier and/or any satellite television carrier. The cable system shall also include connectors, line splitters, couplers, fittings, wall-mounted faceplates, and other support equipment as needed.

B. Cable systems shall be wired from the entrance facility to rooms selected by the 45 CES, the building occupants, and 45 SCS/SCXPX. Each cable run shall be marked at both ends to identify the room number/outlet location.

C. An RG-6 cable with “F” type connector can be used if CAT-6 installation can’t meet the requirement.

3.06 Grounding and Bonding

A. All unclassified TRs must be connected to the building earth electrode subsystem (EES) in accordance with J-STD-607-A. Information on grounding of classified facilities can be found in Engineering Technical Letter (ETL) 11-12 – Grounding, Bonding, Testing, and Recordkeeping for Communications Facilities. An acceptable grounding system encompasses: fault protection grounds, lightning protection grounds, signal reference grounds, and DC power grounds (when applicable). Refer to NFPA 780 and ETL 11-12 for proper lightning protection and NFPA 70 for proper fault protection grounding. The telecommunications designer shall review project drawing to ensure that the lightning and fault protection grounds are addressed by the appropriate disciplines. The telecommunications designer shall ensure that the different grounding systems are not mixed within the building.

B. J-STD-607-A uses the following terms for signal grounding: the telecommunications main grounding busbar (TMGB) and the telecommunications-grounding-busbar (TGB) in place of a signal ground bus bar, the telecommunications bonding backbone (TBB) in place of the ground conductor, and the grounding equalizer (GE).

C. Labeling of the grounding and bonding shall comply with TIA/EIA-606.

3.07 Firestopping

All internal conduit/trays and/or telecommunication cables that penetrate floors, walls, and/or ceilings shall be restored to the original fire rating with the appropriate fire-stopped materials IAW the National Electrical Code, local codes, and the manufacturer’s instructions.

3.08 Housekeeping

A. The contractor/implementing activity to the satisfaction of the Government shall replace floor, ceiling and carpet tiles broken or defaced by the Contractor during the installation and testing process.

B. The contractor/implementing activity to the satisfaction of the Government shall remove all excess debris and packing material.

C. The contractor/implementing activity shall be responsible for all necessary coordination with other contractors and/or government agencies.

D. The contractor/implementing activity shall be responsible for the transportation of all materials, tools and other items necessary to accomplish the work.

3.09 Exceptions

Exceptions to this policy may be made on a case-by-case basis if needed, and must be approved in writing by 45 SCS/SCXPX.

END OF SECTION

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