Computer Networking Wiring Systems

Computer Networking Wiring Systems

SECTION 16792

COMPUTER NETWORKING WIRING SYSTEMS

PART 1 – GENERAL

This specification describes the design, installation, testing, and documentation of all necessary elements for new Los Angeles Unified School District (LAUSD) local area networks (LANs) and supporting cabling infrastructure. This specification and its addendum provide product performance requirements, general design considerations, and installation guidelines. The Contractor will be required to furnish all labor, supervision, tooling, miscellaneous mounting hardware, and consumables for all systems installed. In addition, the Contractor will provide design-build services for individual schools to achieve LAN connectivity for all classrooms, computer laboratories, libraries, instructional areas and work areas, as specified by the LAUSD point of contact. It is the vendor’s responsibility to propose any and all items required for a complete system.

1.01CUSTOMIZED SERVICES

Principal items of work shall include, but are not limited to, the following:

  1. Design services, including the network connectivity design and implementation. The resulting general network configuration described below is illustrated in the “LAN General Depiction” found in the Addendum. The Contractor’s design shall:
  1. Provide rack space to allow a 50% expansion of the number of network data drops provided at time of initial configuration.
  2. Provide a Main Distribution Frame (MDF), Intermediate Distribution Frames (IDFs) and Local Distribution Frames (LDFs) at each campus. The MDF shall be located as close to the Main Point of Presence (MPOP) as practical. IDFs shall be located within the campus buildings and in sufficient quantity to maintain compliance with the horizontal cable running distance limitations as specified in American National Standards Institute/Telecommunications Industry Association/Electronic Industries Alliance (ANSI/TIA/EIA) standard 568A. LDFs shall be installed in every computer lab and library to distribute network connections to workstations within the room.
  3. Provide a router in the MDF as an interface allowing the local network to connect to centralized District Wide Area Network (DWAN).
  4. Provide the minimum capability of a chassis-based modular switch with modular interface cards in the MDF as a Backbone Switch (BBS).
  5. Provide a minimum of one active 1000Base-SX or 1000Base-LX uplink from each Intermediate Switch-Managed (ISM) in IDF's, and Edge Switch-Managed (ESM) in computer laboratories and libraries to the BBS at time of initial configuration.
  6. Provide an LDF in computer laboratories and libraries. These LDFs shall consist of a wall-mounted cabinet containing the switches, associated Category 5E (CAT 5E) patch panels, patch cords, connectors, and wire management required to distribute a single CAT 5E data drop to the workstations located within the room.
  7. Provide the minimum capability of a stackable switch with modular uplinks in each computer lab/library LDF as an Edge Switch-Managed (ESM).
  8. Provide one auto-negotiating 10Base-T/100Base-TX switched port for each computer within the computer laboratories and libraries at time of initial configuration.
  9. Provide the minimum capability of a stackable switch with modular uplinks in each IDF as an Intermediate Switch-Managed (ISM).
  10. Provide an Edge Switch-Unmanaged (ESU) in all of the classrooms.
  11. Provide the MDF, IDFs, and computer lab/library LDFs with Uninterruptible Power Supplies (UPS).
  12. Provide each classroom with a surge protector.
  13. Provide a minimum of a rack-mounted or free-standing application/file server and a separate web server within the MDF.
  1. Connectivity design documentation. The Contractor shall provide the following connectivity design documentation:
  1. Drawing of logical network configuration in hard copy and in AutoCAD 2000 soft copy format.
  2. A material list specifying quantity and part/specification numbers on a classroom, computer lab, library, LDF, IDF, and MDF on a room-by-room basis.
  3. Installation schedule.
  4. Complete set of floor plans indicating entire system configuration, in hard copy and in AutoCAD 2000 soft copy format.
  5. Cable Management Program that will operate on a Windows 95/98/NT platform, including:
  1. Cable schedule.
  2. Cable test forms.
  3. Cable labels.
  4. Networking Planning Charts.
  5. Diskettes containing design database.
  1. Materials and Interoperability. The Contractor shall furnish, install, connect, and test the networking system, including all components, cabinets, terminals, conduit and cabling system in accordance with design services furnished under this Specification.
  2. Supervision. The Contractor shall provide the supervision necessary to design and install a complete and operational system.
  3. Design and implementation services shall be in accordance with applicable TIA and EIA Standards.

1.02RELATED SECTIONS

  1. Section 01720: Project Record Documents.
  2. Section 02222: Excavating, Backfilling and Compacting for Utilities
  1. Section 16010: Basic Electrical Requirements.
  2. Section 16050: Basic Electrical Materials.
  3. Section 16110: Raceways, Fittings and Supports.
  4. CODES AND STANDARDS
  1. Underwriters Laboratories Inc. (UL): Applicable listings and ratings.
  1. UL LAN Cable Certification Level 5.
  2. National Electric Code (Articles 770, 800, latest issue).
  3. California Electrical Code.
  4. National, State, and Local Occupational Safety and Health Administration (OSHA) building and fire codes.
  5. ANSI/TIA/EIA Telecommunications Building Wiring Standards.
  6. ANSI/TIA/EIA-568-A, Commercial Building Telecommunications Cabling Standard (October 1995).
  7. ANSI/TIA/EIA-568-A-2, Corrections and Additions to TIA/EIA-568-A-2 (August 1998).
  8. ANSI/TIA/EIA-568-A-3, Addendum No. 3 to TIA/EIA-568-A (December 1998).
  9. ANSI/TIA/EIA-568-A-5, Transmission Performance Specifications for 4-Pair 100 ohm Category 5E Cabling (February 2000).
  10. ANSI/TIA/EIA-568-B-3, Optical Fiber Cabling Components Standard (March 2000).
  11. ANSI/TIA/EIA-569-A, Commercial Building Standard for Telecommunications Pathways and Spaces (February 1998).
  12. ANSI/TIA/EIA-569-A-1, Commercial Building Standard for Telecommunications Pathways and Spaces Addendum 1 - Surface Raceways (March 2000).
  13. ANSI/EIA/TIA-598-A, Optical Fiber Cable Color Coding (May 1995).
  14. ANSI/TIA/EIA-606, The Administration Standard for the Telecommunications Infrastructure of Commercial Building (February 1993).
  15. ANSI/TIA/EIA-607, Commercial Building Grounding and Bonding Requirements for Telecommunications (August 1994).
  16. ANSI/TIA/EIA-758, Customer-Owned Outside Plant Telecommunications Cabling Standard (April 1999).
  17. ANSI/TIA/EIA-758-1, Addendum No. 1 to TIA/EIA-758, Customer-Owned Outside Plant Telecommunications Cabling Standard (March 1999).
  18. TIA/EIA TSB-67, Transmission Performance Specifications for Field Testing of Unshielded Twisted-Pair Cabling Systems (October 1995).
  19. TIA/EIA TSB-72, Centralized Optical Fiber Cabling Guidelines (October 1995).
  20. Institute of Electrical and Electronic Engineers (IEEE) 802.3 (Ethernet), 802.3Z (Gigabit Ethernet over optical fiber), 802.3ab (Gigabit Ethernet over 4 pair category 5 or higher), 802.11 (Wireless LAN).
  21. BICSI Telecommunications Distribution Methods Manual (2000 or latest).
  22. FCC Part 68.50.
  23. National Electrical Manufacturer’s Association (NEMA).
  24. National Fire Protection Association (NFPA), NFPA-70.
  25. CCR Part 3 - California Electrical Code.
  26. CCR Part 2 - Uniform Building Code.
  27. SYSTEM DESCRIPTION
  1. Telecommunications Cabling Infrastructure. The network-cabling infrastructure at each school will utilize a star topology design consisting of horizontal cabling, backbone cabling, and various telecommunications cabling pathways and spaces. All schools will require design-engineering services to determine the best route and method for cable conveyance throughout the school in accordance with applicable installation standards.
  1. Horizontal Cabling – Each data outlet unless otherwise noted shall consist of either one enhanced category 5 cable or four strands of fiber optic cable. Each CAT 5E cable shall be terminated on an 8-position, 8-conductor CAT 5E jack wired in accordance with T568B and associated faceplates shall accommodate one jack at a minimum. Within the room, the CAT 5E cabling shall be routed via EMT conduit or surface mount raceway into the data outlet as close to each workstation as practical. Contractor shall supply CAT 5E rated patch panels and same manufacturer patch cords for telecommunications closets and workstations to maintain a CAT 5E channel for all horizontal cabling. Each four strand fiber optic cable shall be terminated on dual SC duplex outlets and associated faceplate shall accommodate both SC duplex outlets.
  2. Backbone Cabling - The backbone cabling, unless otherwise noted, shall consist of twelve (12) strand 62.5/125 multi-mode and six (6) strand single-mode fiber optic cabling for inter-building and intra-building backbone cabling. Fiber optic cable shall be able to support Gigabit Ethernet transmission as specified by IEEE document 802.3Z. All connectors, optical fiber patch cords, distribution panels, ferrules, enclosures, and consumables shall be included to provide the backbone connectivity between MDFs and IDFs.
  3. Telecommunications Spaces - Each campus will have one MDF and at a minimum one IDF and LDF. All telecommunications spaces will be located in secure areas with proper ventilation, power, lighting, and grounding. MDFs and IDFs will accommodate all horizontal and backbone cabling termination equipment including: 19-inch free standing racks, wall-mounted racks, or cabinets, patch panels, vertical and horizontal wire management, patch cables, ladder racking, conduit sleeves, and data electronics. The MDF shall be located as close to the Main Point of Presence (MPOP) as practical. IDFs shall be located within the campus buildings in sufficient quantity to maintain compliance with the horizontal cable running distance limitations as specified in TIA/EIA 568A. LDFs shall be located within every computer lab and library to support ESM equipment.
  1. Definitions.
  1. The BBS is the Backbone Switch that serves as the central point of network termination, and provides network connectivity to IDFs, computer labs and libraries.
  2. The ISM is the Intermediate Switch–Managed serving as the network termination point for horizontal cabling to all classrooms and all other areas excluding computer labs and libraries.
  3. The ESM is the Edge Switch–Managed serving as the network termination point for horizontal cabling within computer labs and libraries.
  4. The ESU is the Edge Switch-Unmanaged and is a network access point within the classroom or other designated area for network connections.
  5. An MDF is the structure that serves as an entrance facility or main cross-connect, serving the building or campus.
  6. The IDF is located between the MDF and the LDFs and provides a network access point for horizontal fiber cabling.
  7. In a computer lab or library the LDF is a wall-mounted cabinet that serves as the termination point for CAT 5E cabling within the room.

1.05SUBMITTALS

Submit the following in accordance with the approved submittal schedule.

  1. Materials list of items proposed to be provided under the specification.
  1. Furnish catalog cuts, technical data, and descriptive literature on components. Data shall be clearly marked and noted to identify specific ranges, model numbers, sizes, and other pertinent data.
  2. Shop drawings shall indicate equipment locations, wiring and schematics, details, panel configurations, sizes and a point-to-point wiring diagram of all circuits. Shop drawings shall indicate interfaces to equipment furnished by others, identifying numbers of wires, termination requirements, and other pertinent details. Responsibility for each end of interfaces shall be noted on shop drawings.
  3. Each submittal shall be bound and shall contain an index organized vertically by assembly and item number and horizontally by columns. The first assembly shall be the major head end equipment. The leftmost column shall be the item number; next shall be the description, followed by the applicable specification section number, and followed by the specified item, which is followed by the submitted item. The rightmost column shall be for notes, which shall be used to reference the reason for submitting items other than as specified.
  4. Each submittal shall contain product data sheets or catalog cut sheets for each item listed in the Index. These shall be arranged in the same order as the index and if more than one item is shown, the submitted items shall be highlighted or marked with an arrow. The product data shall be sufficiently detailed to allow the engineer to evaluate the suitability of the product and to allow other trades to provide necessary coordination.
  5. Drawings that are specific to this specification section shall be included in the submittal. “A” size (8&1/2”x11”) and “B” size (11”x17”) shall be bound into the manual. Larger drawings shall be folded and inserted into transparent envelopes that are bound into the manual.

1.06QUALITY ASSURANCE

  1. The Contractor shall use adequate numbers of skilled workmen who are thoroughly trained and experienced on the necessary crafts and completely familiar with the specified requirements and methods needed for the proper performance of the work.
  1. The Contractor must provide a project manager who has demonstrated the ability to supervise a telecommunications project. The project manager must be available to be interviewed by LAUSD and/or their representative, and must be deemed acceptable by LAUSD and/or their representative. The Project Manager must be available to attend meetings as required. Acceptance will not be unreasonably withheld.
  2. The work of this section shall conform to California Code of Regulations, Part 3, and all other applicable codes and standards.
  3. Only a qualified Contractor holding licenses required by legally constituted authorities having jurisdiction over the work shall do work. Contractor shall have completed at least 5 projects of equal scope to systems described herein and shall have been engaged in business of supplying and installing specified type of systems for at least 5 years. Must use equipment manufacturers’ certified installers.
  4. Manufacturer shall warranty availability of spare parts common to proposed system for a period no less than that stipulated within the California Multiple Award Schedule (CMAS) terms and conditions. If no time period is contractually stipulated, the Contractor shall provide a warranty of 5 years.
  5. Contractor shall warranty that all work executed and materials furnished shall be free from defects of material and workmanship for a period of 2 years from acceptance date of Contract Completion, excluding specific items of work that require a warranty of a greater period as set forth in this Specification. Immediately upon receipt of written notice from the District, the Contractor shall repair or replace at no expense to the District, any defective material or work that may be discovered before final acceptance of work or within warranty period; any material or work damaged thereby; and adjacent material or work that may be displaced in repair or replacement. Examination of or failure to examine work by the District shall not relieve Contractor from these obligations.
  6. Persons skilled in trade represented by work, and in accordance with all applicable building codes, shall install system in accordance with best trade practice.
  7. Contractor shall include in the Material List Submission copies of the manufacturers’ certifications that the Contractor is an authorized distributor of the submitted manufacturers’ products and has been adequately trained in the installation of those products. This applies to all fiber optic components and fiber optic cable.
  8. Contractor shall include in the Material List Submission a list of five projects of similar scope acceptable to the District and shall have a service organization capable of responding to warranty service requests within 24 hours of receipt of written notification and resolution within 1 day for MDF equipment and 5 days for equipment located either in the classroom, IDF, library or computer laboratory. Contractor shall include the telephone number of the customer’s client contact for each project and a letter signed by a corporate officer, partner, or owner of the contracting company describing the service capability of the company and stating the company’s commitment to maintain that service capability through the warranty period.

1.07TRAINING

  1. LAN Switching Equipment. A three-day training course shall be provided, no later than 30 days after equipment installation, one designated person from the Information Technology Department (ITD) and for up to three designated representatives from the school in which the network infrastructure is being installed. The training shall be provided at the switch manufacturer’s authorized training facility located in Los Angeles County. Training shall consist of providing a CD-based Computer Based Training (CBT) course covering an “Introduction to Switching Technology” which is to be available for student review prior to attending training classes.
  2. Class instruction is to consist of intensive course work covering the following topics: Product Features and Technical Specifications; Implementation and Design; and Installation and Configuration. The authorized training participants may also participate as observers in the network installation, configuration, and testing process as the network switching equipment is deployed at their school site.

PART 2 – PRODUCTS

2.01EQUIPMENT STANDARDS

  1. Where applicable all components installed under this Contract shall be listed by UL.
  1. All major managed switching equipment and components exclusive of routers, ESU's and cabling shall be of like products from a single manufacturer except otherwise approved by the District.
  2. Equipment Requirements.
  1. In order to establish a standard of quality as required by the District, various manufacturers’ equipment may meet the requirements in this document. As a reference for comparison of vendors, the equipment specification sheets on all items must be included with the submitted bid and design.
  2. The School District Electrical Engineer or designated agent will establish equivalency and compliance of product or components offered for use under this Contract.
  1. Equipment Substitutions. Equipment substitutions must be pre-approved by the District’s Electrical Engineer prior to bid date. Contractor must show operation of equipment and compliance with functions and features specified herein. Equipment substitutions that were not pre-approved prior to bid date will be rejected. In the event that no equipment is found to meet all the requirements specified herein, the equipment meeting the most requirements will be given preferential treatment during the selection process.
  2. Non-Proprietary Implementation. This design and implementation Specification precludes the use of any network equipment vendor proprietary protocols or capabilities required to either deliver an operational overall system or preclude future implementations that rely on prevailing industry standards.

2.02LAN EQUIPMENT

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