B09_Attachment_3_A_-_Comm_Horizontal_Cabling_0001.docx

SECTION - cOMMUNICATIONS HORIZONTAL CABLING

GENERAL

SUMMARY

This section involves Cables, Transient Voltage Surge Suppression, connecting hardware, and identification and administration systems.

Section Includes:

Related documents Description Performance requirements UTP cable and hardware Transient Voltage Surge Suppression Cabling system identification

RELATED DOCUMENTS

Section 27 05 00 Common Work Results For Communications

DESCRIPTION

Horizontal cable and its connecting hardware provide the means of transporting signals between the telecommunications outlet/connector and the horizontal cross-connect located in the communications equipment room. This cabling and its connecting hardware are called the "permanent link".

The maximum allowable “horizontal link” cable length is 295 feet. This allows for an extra 33 feet for the entire channel length of 328 feet. The 33 feet provides for the maximum length of 16 feet to the workstation equipment, 7 feet or in the horizontal cross-connect, and 10 feet for a service loop in the telecommunications room.

All cabling will be installed in conduit systems.

PRODUCTS

PERFORMANCE REQUIREMENTS

Install plenum cable in environmental air spaces, including plenum ceilings.

General Performance: Horizontal cabling system shall comply with transmission standards in TIA/EIA-568-C.1 when tested per test procedures of this standard.

Surface-Burning Characteristics: Comply with ASTM E 84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

Flame-Spread Index: 25 or less.

Smoke-Developed Index: 50 or less.

Listed and labeled by an NRTL acceptable to authorities having jurisdiction as complying with UL 444 and NFPA 70 for the following types:

Communications, General Purpose: Type CM or CMG.

Communications, Plenum Rated: Type CMP, complying with NFPA 262.

Communications, Riser Rated: Type CMR, complying with UL 1666.

Communications, Limited Purpose: Type CMX.

Multipurpose: Type MP or MPG.

Multipurpose, Plenum Rated: Type MPP, complying with NFPA 262.

Multipurpose, Riser Rated: Type MPR, complying with UL 1666.

Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

Provide cable, patch cords and hardware solutions matched and coordinated by the manufacturers. Cables shall be terminated and patched with connecting hardware of same category or higher.

All cabling will be installed in conduits provided by the contractor.

Provide cables with imprinted cable type, length, category and/or strand count.

Provide cable and hardware for the number of cables terminated on the block or housing, plus 25 percent spare. Integral with connector bodies, including plugs and jacks.

Provide transient voltage surge suppression on all circuits.

UTP CABLE AND HARDWARE

CAT6 100-ohm, four-pair UTP cable (Station Cabling). Quantities for each station outlet per drawings. Provide two (2) patch cables for each termination. One for telecom room patch, and one for each outlet. Telecom /Data outlet, would require four patch cables.

Color at Contracting Officer Representative discretion.

Install cabling in conduit system.

Connecting Hardware:

Terminate T568B Provide modular connecting blocks and patch panels with 110-style IDC punch-down caps or crimp tools.

Patch panels to have clear window displays covering outlet labels.

Transient Voltage Surge Suppression on all circuits.

Jacks and Jack Assemblies: 100-ohm, balanced, modular, color-coded, four-pair, eight-position units with integral IDC-type terminals.

Workstation Outlets:

Six port-connector assemblies mounted in single-gang faceplate.

High impact plastic with clear label lens.

Color at Contracting Officer Representative discretion.

For use with snap-in jacks accommodating any combination of UTP, optical fiber, and coaxial work area cords.

Flush mounting jacks, positioning the cord at a 45-degree angle.

Black blanks are to be installed in any patch panel, faceplate, or fiber enclosure as required.

Patch Cords:

Terminate T568B Provide one patch cable for each patch connection. Include 10 percent spaces for color required.

Factory-made, four-pair cables terminated with eight-position modular plug at each end.

Patch cords shall have bend-relief-compliant boots and latch guards to protect against snagging.

Inventory and color at Contracting Officer Representative discretion.

SOURCE QUALITY CONTROL

Testing Agency: Engage a qualified testing agency to evaluate cables.

Factory test UTP cables on reels according to TIA/EIA-568-C.2.

Factory-sweep test coaxial cables at frequencies from 5 MHz to 1 GHz. Sweep test shall test the frequency response or attenuation over frequency, of a cable by generating a voltage whose frequency is varied through the specified frequency range and graphing the results.

Cable will be considered defective if it does not pass tests and inspections.

Prepare test and inspection reports.

SOURCE QUALITY CONTROL

Testing Agency: Engage a qualified testing agency to evaluate cables.

Factory test UTP cables on reels according to TIA/EIA-568-C.2.

Factory-sweep test coaxial cables at frequencies from 5 MHz to 1 GHz. Sweep test shall test the frequency response or attenuation over frequency, of a cable by generating a voltage whose frequency is varied through the specified frequency range and graphing the results.

Cable will be considered defective if it does not pass tests and inspections.

Prepare test and inspection reports.

EXECUTION

INSTALLATION OF CABLES

Comply with NECA 1.

General Requirements for Cabling:

All cabling shall be in conduit except at IT cabinets or terminals or within cable tray. It is not permitted to be installed loose in millwork, counters, desks or other such locations. Wiremold or other approved metal raceway must be provided in such locations.

Comply with TIA/EIA-568-C.1.

Comply with BICSI ITSIM, Ch. 6, "Cable Termination Practices."

Terminate conductors: no cable shall contain un-terminated elements. Make terminations only at indicated outlets, terminals, cross-connects, and patch panels.

Cables may not be spliced. Secure and support cables at intervals not exceeding 30 inches and not more than 6 inches from cabinets, boxes, fittings, outlets, racks, frames, and terminals.

Install lacing bars to restrain cables, to prevent straining connections, and to prevent bending cables to smaller radii than minimums recommended by manufacturer.

Bundle, lace, and train conductors to terminal points without exceeding manufacturer's limitations on bending radii, but not less than radii specified in BICSI ITSIM, "Cabling Termination Practices" Chapter. Install lacing bars and distribution spools.

Do not install bruised, kinked, scored, deformed, or abraded cable. Do not splice cable between termination, tap, or junction points. Remove and discard cable if damaged during installation and replace it with new cable.

Cold-Weather Installation: Bring cable to room temperature before de-reeling. Heat lamps shall not be used for heating.

Unless otherwise noted, install a 10-foot- long service loop on each end of cable.

Pulling Cable: Comply with BICSI ITSIM, Ch. 4, "Pulling Cable." Monitor cable pull tensions.

UTP Cable Installation:

Comply with TIA/EIA-568-C.0.

Do not untwist UTP cables more than 1/2 inch from the point of termination to maintain cable geometry.

Coordinate layout and installation of telecommunications cabling with Contracting Officer Representative telecommunications and LAN equipment and service suppliers.

Coordinate telecommunications outlet/connector locations with location of power receptacles at each work area.

Horizontal cabling shall contain no more than one transition point or consolidation point between the horizontal cross-connect and the telecommunications outlet/connector.

Bridged taps and splices shall not be installed in the horizontal cabling.

Splitters shall not be installed as part of the optical fiber cabling.

Install cables in pathways and cable trays. Conceal conductors and cables in conduits in accessible ceilings, walls, and floors where possible.

Consolidation points may be used only for making a direct connection to telecommunications outlet/connectors:

Do not use consolidation point as a cross-connect point, as a patch connection, or for direct connection to workstation equipment.

Locate consolidation points for UTP at least 49 feet from communications equipment room.

Secure and support cables at intervals not exceeding 30 inches and not more than 6 inches from cabinets, boxes, fittings, outlets, racks, frames, and terminals.

Do not install bruised, kinked, scored, deformed, or abraded cable. Do not splice cable between termination, tap, or junction points. Remove and discard cable if damaged during installation and replace it with new cable.

Cold-Weather Installation: Bring cable to room temperature before de-reeling. Heat lamps shall not be used for heating.

In the communications equipment room, install a 10-foot- long service loop on each end of cable.

Open-Cable Installation (permitted in Telecom space only):

Install cabling with horizontal and vertical cable guides in telecommunications spaces with terminating hardware and interconnection equipment.

Cable shall not be run through structural members or in contact with pipes, ducts, or other potentially damaging items.

Group connecting hardware for cables into separate logical fields.

Separation from EMI Sources:

Comply with BICSI TDMM and TIA-569-B for separating unshielded copper voice and data communication cable from potential EMI sources, including electrical power lines and equipment.

Separation between open communications cables or cables in nonmetallic raceways and unshielded power conductors and electrical equipment shall be as follows:

Electrical Equipment Rating Less Than 2 kVA: A minimum of 6 inches.

Electrical Equipment Rating between 2 and 5 kVA: A minimum of 12 inches.

Electrical Equipment Rating More Than 5 kVA: A minimum of 24 inches.

Separation between communications cables in grounded metallic raceways and unshielded power lines or electrical equipment shall be as follows:

Electrical Equipment Rating Less Than 2 kVA: A minimum of 2-1/2 inches.

Electrical Equipment Rating between 2 and 5 kVA: A minimum of 6 inches.

Electrical Equipment Rating More Than 5 kVA: A minimum of 12 inches.

Separation between communications cables in grounded metallic raceways and power lines and electrical equipment located in grounded metallic conduits or enclosures shall be as follows:

Electrical Equipment Rating Less Than 2 kVA: No requirement.

Electrical Equipment Rating between 2 and 5 kVA: A minimum of 3 inches.

Electrical Equipment Rating More Than 5 kVA: A minimum of 6 inches.

Separation between Communications Cables and Electrical Motors and Transformers, 5 kVA or HP and Larger: A minimum of 48 inches.

Separation between Communications Cables and Fluorescent Fixtures: A minimum of 5 inches.

IDENTIFICATION

Identify system components, wiring, and cabling complying with TIA/EIA-606-A.

Administration Class: 2.

Color-code cross-connect fields. Apply colors to voice and data service backboards, connections, covers, and labels.

Legend: Machine printed, in the field, using adhesive-tape label for plastic faceplates.

Data: D001, D002, etc.

Voice: V001, V002, etc.

CATV: C01, C02, etc.

Wall Phone: WP001, WP002, etc.

Using cable management system software specified in Part 2, develop Cabling Administration Drawings for system identification, testing, and management. Use unique, alphanumeric designation for each cable and label cable, jacks, connectors, and terminals to which it connects with same designation. At completion, cable and asset management software shall reflect as-built conditions.

Cable Schedule: Post in prominent location in each equipment room and wiring closet. List incoming and outgoing cables and their designations, origins, and destinations. Protect with rigid frame and clear plastic cover. Furnish an electronic copy of final comprehensive schedules for Project.

Cabling Administration Drawings: Show building floor plans with cabling administration-point labeling. Identify labeling convention and show labels for telecommunications closets, backbone pathways and cables, entrance pathways and cables, terminal hardware and positions, horizontal cables, work areas and workstation terminal positions, grounding buses and pathways, and equipment grounding conductors. Follow convention of TIA/EIA-606-A. Furnish electronic record of all drawings, in software and format selected by Contracting Officer Representative.

Cable and Wire Identification:

Label each cable within 4 inches of each termination and tap, where it is accessible in a cabinet or junction or outlet box, and elsewhere as indicated.

Identification within Connector Fields in Equipment Rooms and Wiring Closets: Label each connector and each discrete unit of cable-terminating and connecting hardware. Where similar jacks and plugs are used for both voice and data communication cabling, use a different color for jacks and plugs of each service.

Uniquely identify and label work area cables extending from the MUTOA to the work area. These cables may not exceed the length stated on the MUTOA label.

Labels shall be preprinted or computer-printed type with printing area and font color that contrasts with cable jacket color but still complies with requirements in TIA/EIA-606-A.

Cables use flexible vinyl or polyester that flex as cables are bent.

FIELD QUALITY CONTROL

Perform the following tests and inspections:

Visually inspect UTP cable jacket materials for NRTL certification markings. Inspect cabling terminations in communications equipment rooms for compliance with color-coding for pin assignments, and inspect cabling connections for compliance with TIA/EIA-568-C.0.

Visually confirm Category 6 marking of outlets, cover plates, outlet/connectors, and patch panels.

Visually inspect cable placement, cable termination, grounding and bonding, equipment and patch cords, and labeling of all components.

Test UTP copper cabling for DC loop resistance, shorts, opens, intermittent faults, and polarity between conductors. Test operation of shorting bars in connection blocks. Test cables after termination but not cross-connection.

Test instruments shall meet or exceed applicable requirements in TIA/EIA-568-C.2. Perform tests with a tester that complies with performance requirements in "Test Instruments (Normative)" Annex, complying with measurement accuracy specified in "Measurement Accuracy (Informative)" Annex. Use only test cords and adapters that are qualified by test equipment manufacturer for channel or link test configuration.

UTP Performance Tests:

Test each outlet according to TIA/EIA-568-C.2 Wire map Length (physical vs. electrical, and length requirements) Insertion loss Near-end crosstalk (NEXT) loss Power sum near-end crosstalk (PSNEXT) loss Equal-level far-end crosstalk (ELFEXT) Power sum equal-level far-end crosstalk (PSELFEXT) Return loss Propagation delay Delay skew Final Verification Tests: Perform verification tests for UTP systems after the complete communications cabling and workstation outlet/connectors are installed.

Document data for each measurement. Data for submittals shall be printed in a summary report that is formatted similar to Table 10.1 in BICSI TDMM, or transferred from the instrument to the computer, saved as text files, and printed and submitted.

End-to-end cabling will be considered defective if it does not pass tests and inspections.

Prepare test and inspection reports.

DEMONSTRATION

Train Contracting Officer Representative maintenance personnel in cable-plant management operations, including changing signal pathways for different workstations, rerouting signals in failed cables, and keeping records of cabling assignments and revisions when extending wiring to establish new workstation outlets. Include training in cabling administration software.

END OF SECTION - COMMUNICATIONS HORIZONTAL CABLING