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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.
01. CUSTOMIZED SERVICES
Principal items of work shall include, but are not limited to, the following:
A. 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.
A. 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:
a. Cable schedule.
b. Cable test forms.
c. Cable labels.
d. Networking Planning Charts.
e. Diskettes containing design database.
B. 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.
C. Supervision. The Contractor shall provide the supervision necessary to design and install a complete and operational system.
D. Design and implementation services shall be in accordance with applicable TIA and EIA Standards.
02. RELATED SECTIONS
A. Section 01720: Project Record Documents.
B. Section 02222: Excavating, Backfilling and Compacting for Utilities
E. Section 16010: Basic Electrical Requirements.
F. Section 16050: Basic Electrical Materials.
G. Section 16110: Raceways, Fittings and Supports.
3. CODES AND STANDARDS
A. Underwriters Laboratories Inc. (UL): Applicable listings and ratings.
H. UL LAN Cable Certification Level 5.
I. National Electric Code (Articles 770, 800, latest issue).
J. California Electrical Code.
K. National, State, and Local Occupational Safety and Health Administration (OSHA) building and fire codes.
L. ANSI/TIA/EIA Telecommunications Building Wiring Standards.
M. ANSI/TIA/EIA-568-A, Commercial Building Telecommunications Cabling Standard (October 1995).
N. ANSI/TIA/EIA-568-A-2, Corrections and Additions to TIA/EIA-568-A-2 (August 1998).
O. ANSI/TIA/EIA-568-A-3, Addendum No. 3 to TIA/EIA-568-A (December 1998).
P. ANSI/TIA/EIA-568-A-5, Transmission Performance Specifications for 4-Pair 100 ohm Category 5E Cabling (February 2000).
Q. ANSI/TIA/EIA-568-B-3, Optical Fiber Cabling Components Standard (March 2000).
R. ANSI/TIA/EIA-569-A, Commercial Building Standard for Telecommunications Pathways and Spaces (February 1998).
S. ANSI/TIA/EIA-569-A-1, Commercial Building Standard for Telecommunications Pathways and Spaces Addendum 1 - Surface Raceways (March 2000).
T. ANSI/EIA/TIA-598-A, Optical Fiber Cable Color Coding (May 1995).
U. ANSI/TIA/EIA-606, The Administration Standard for the Telecommunications Infrastructure of Commercial Building (February 1993).
V. ANSI/TIA/EIA-607, Commercial Building Grounding and Bonding Requirements for Telecommunications (August 1994).
W. ANSI/TIA/EIA-758, Customer-Owned Outside Plant Telecommunications Cabling Standard (April 1999).
X. ANSI/TIA/EIA-758-1, Addendum No. 1 to TIA/EIA-758, Customer-Owned Outside Plant Telecommunications Cabling Standard (March 1999).
Y. TIA/EIA TSB-67, Transmission Performance Specifications for Field Testing of Unshielded Twisted-Pair Cabling Systems (October 1995).
Z. TIA/EIA TSB-72, Centralized Optical Fiber Cabling Guidelines (October 1995).
AA. 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).
AB. BICSI Telecommunications Distribution Methods Manual (2000 or latest).
AC. FCC Part 68.50.
AD. National Electrical Manufacturer’s Association (NEMA).
AE. National Fire Protection Association (NFPA), NFPA-70.
AF. CCR Part 3 - California Electrical Code.
AG. CCR Part 2 - Uniform Building Code.
4. SYSTEM DESCRIPTION
A. 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.
AH. 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.
05. SUBMITTALS
Submit the following in accordance with the approved submittal schedule.
A. Materials list of items proposed to be provided under the specification.
AI. 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.
AJ. 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.
AK. 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.
AL. 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.
AM. 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.
06. QUALITY ASSURANCE
A. 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.
AN. 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.
AO. The work of this section shall conform to California Code of Regulations, Part 3, and all other applicable codes and standards.
AP. 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.
AQ. 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.
AR. 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.
AS. Persons skilled in trade represented by work, and in accordance with all applicable building codes, shall install system in accordance with best trade practice.
AT. 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.
AU. 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.
07. TRAINING
A. 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.
B. 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
2.01 EQUIPMENT STANDARDS
A. Where applicable all components installed under this Contract shall be listed by UL.
AV. 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.
AW. 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.
AX. 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.
AY. 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.
2.02 LAN EQUIPMENT
A. Routers.
1. The router shall be required to provide a variable interface capability to support individual site requirements. While many of the interfaces may not be required during the initial implementation, the ability to implement any of the listed capabilities is required.
2. The router shall be SNMP manageable as well as provide RMON statistics.
3. The primary interfaces currently projected for the LAN include Ethernet and Fast Ethernet interfaces, but support for a Token Ring interface capability is also required.
4. The interfaces providing connection to the DWAN include the capability for dedicated T-1 and Fractional T-1 circuits, Frame Relay, Integrated Services Digital Network (ISDN), along with higher rate interface options to support SONET and Asynchronous Transfer Mode (ATM) capabilities.
5. The router shall support Systems Network Architecture (SNA) and Internet Protocol (IP) protocols as well as supporting SNA over IP. The router shall also support variable-length subnet masking for the IP addressing as well as allow user definable access control lists.
6. The router shall support trunking of a minimum of sixteen VLANs and shall fully support IEEE 802.1q tagging functions and IEEE 802.1p quality of service functions.
7. The physical router characteristic requirements are as follows:
a. Redundant, hot-swappable load-sharing power supplies.
b. Modular configuration with slots supporting different interface module types.
c. Rack-mountable in standard 19-inch rack.
8. The router must be capable of supporting the following modules:
a. Two auto-negotiating 10Base-T/100Base-TX ports.
b. One Token Ring port.
c. One T-1 Channelized Primary Rate ISDN (PRI) port.
d. Two synchronous serial ports supporting data rates from 56Kbps to 1.544Mbps.
e. One SONET or ATM port.
9. The router shall have at a minimum the following ports installed, unless otherwise specified by the District:
a. Two auto-negotiating 10Base-T/100Base-TX ports.
b. One T-1 synchronous serial port.
10. The router shall support the following routing protocols.
a. BGP4
b. DVMRP
c. IGMP
d. OSPF
e. PIM (dense mode and sparse mode)
f. RIP
g. RIPv2
11. In the event that the BBS can provide the same functionality as the router, the most appropriate piece of equipment, with regard to price and performance, shall be used in place of an individual router.
AZ. Backbone Switch (BBS).
1. The BBS shall be a modular, rack mountable, chassis based switch with a number of slots as required by the site network configuration.
2. The Backbone Switch shall be SNMP manageable as well as provide RMON statistics.
3. The BBS shall be of sufficient size to accommodate and of appropriate functional design to support the following available modules regardless of whether all of these modules are required to be furnished at time of installation:
a. The BBS shall have sufficient redundancy so that despite the failure of any single replaceable component, the BBS will maintain its configuration information, the ability to enforce Virtual LANs (VLANs), filtering/forwarding policies, perform routing and to support network management functions.
b. Fiber optic based Gigabit Ethernet Switch Modules with a minimum of four 1000Base-LX ports. Fiber optic based Gigabit Ethernet Switch Modules with a minimum of four 1000Base-SX ports. The number of such modules configured in the BBS should be sufficient to provide one port for each ISM or ESM configured with a 1000Base-LX or 1000Base-SX uplink connection plus a minimum of 15% spare ports of each type. ISMs or ESMs may be located in an IDF, Library or Computer Lab.
c. A copper twisted-pair based Fast Ethernet Switch Module or Modules, as required, to provide a minimum of six auto-negotiating 10Base-T/100Base-TX ports in the Backbone Switch for legacy network equipment such as new or existing file, directory, application, CD ROM and/or authentication servers or other network resources.
d. Provide a minimum of 25% empty module slots with a blank cover for future expansion.
e. The BBS must be equipped with at least dual, redundant, load sharing, hot-swappable, power supplies.
f. The BBS family must provide connectivity to legacy systems through either an Ethernet Switch Module with AUI ports (10Base-5) and/or BNC (10Base-2) ports or media converters to adapt to a 10Base-T interface for connection into an auto-negotiating 10Base-T/100Base-TX module.
4. The Backbone Switch product line shall include modules that are compatible with specified uplink modules of corresponding data rates and media types for the provided ISM and ESM Switches.
5. The Backbone Switch shall perform IP routing at a minimum using at least the following routing protocols: BGP, OSPF, IGMP, DVMRP, PIM (dense mode and sparse mode), RIP and RIPv2.
6. The Backbone Switch shall be able to interface to the ISM Switches and interoperate with the same user-created VLANs as on the ISM Switches to include the capability for VLANs to span across multiple ISMs connected to different ports on the BBS. Further, the Backbone Switch shall support a minimum of sixteen VLANs and shall fully support IEEE 802.1q tagging functions and IEEE 802.1p quality of service functions.
7. The Backbone Switch shall be user configurable to perform forwarding and filtering decisions based on protocols and applications to include Transmission Control Protocol (TCP) application ports and source/destination IP address filtering. The forwarding and filtering decision abilities must be capable of enforcing policies on communications between different subnets or VLANs within the campus network as well as on communications through the DWAN connection or the Internet.
8. In order to support future increased efforts to deploy multimedia presentations to the classroom, the Backbone Switch shall be capable of interoperating with other equipment manufacturer routers (to include existing routers such as IBM, Cisco and any new but unknown manufacturer routers) operating in a standards-based IP environment.
9. The BBS’s performance must provide at a minimum:
a. Provide a worst case switch throughput of no less than 10Gbps.
b. No less than 10M 64-byte packets per second throughput Layer 2 with any or all features enabled.
c. No less than 6M 64-byte packets per second throughput Multicast/Layer 3 with any or all features enabled.
BA. Intermediate Switch-Managed (ISM) and Edge Switch-Managed (ESM).
1. The ISM shall be a stackable or chassis-based, rack mountable switch and the ESM shall be a stackable rack mountable switch.
2. The ISMs and ESMs shall be SNMP manageable as well as provide RMON statistics.
3. The ESM Switches shall provide a minimum of twenty-four auto-negotiating 10Base-T/100Base-TX ports each and shall provide a modular slot to accommodate a variety of uplink modules. The available Uplink module options must include 100Base-TX, 100Base-FX, 1000Base-SX and 1000Base-LX.
4. The ISM and ESM Switches furnished under this specification shall be supplied with a 1000Base-LX or 1000Base-SX uplink module for connection to the BBS. Only one of the 1000Base-LX or 1000Base-SX ports per ISM/ESM switch will be connected to the BBS at time of installation, unless otherwise required.
5. The ISM Switches furnished under this specification shall be supplied with at least one 100Base-FX port for each classroom and other designated areas.
6. Each ISM and ESM Switch must provide a minimum of 15% empty ports for future expansion. If the total number of assigned and spare ports in an ISM exceeds 32, multiple uplink connections shall be provided from that ISM so that the total number of ports using each uplink connection shall not exceed 32.
7. The ISM and ESM Switches must be capable of providing a “daisy-chaining” or “cascading” capability. This capability can be provided either through backplane inter-switch connectivity or though the use of additional 1000Base-SX uplink ports between the switches.
8. In the event an additional ISM or ESM Switch is required to provide the auto-negotiating ports but is only using 25% or less of the available ports, the switch may use a 1000Base-SX uplink connection of another collocated switch to provide interswitch connection to the BBS. The District’s representative must approve this connection.
9. The ISM Switch shall be able to interface to the BBS Switch and interoperate with the same user-created VLANs as on the ISM Switches to include the capability for VLANs to span across multiple ISMs connected to different ports on the BBS. Further, the Backbone Switch shall support a minimum of sixteen VLANs and shall fully support IEEE 802.1q tagging functions and IEEE 802.1p quality of service functions.
10. In the event that a 100Base-TX based ISM with a chassis-based media converter can provide the same functionality as the integrated 100Base-FX ISM, the most appropriate piece of equipment, with regard to price and performance, may be used in place of the fiber-based ISM.
11. The ISM and ESM Switches’ performance must provide at a minimum:
a. Provide a worst case switch throughput of no less than 3Gbps.
b. No less than 3M 64-byte packets per second throughput Layer 2 with any or all features enabled.
c. No less than 3M 64-byte packets per second throughput Multicast/Layer 3 with any or all features enabled
12. In the event the BBS can provide the same functionality of the ISM, through the use of fiber patch cords within the IDF and 100Base-FX ports in the BBS, the most appropriate piece of equipment, with regard to price and performance, shall be used in place of an individual ISM.
BB. Edge Switch-Unmanaged
1. The ESU shall be provided for all of the classrooms with an auto-negotiating 10Base-T/100Base-TX switch.
2. The ESU shall be wall or desktop mountable.
3. Each switch shall have a minimum of seven auto-negotiating 10Base-T/100Base-TX ports.
4. Each switch shall have a minimum of a user selectable 100BaseTX or 100Base-FX uplink port, designed for multi-mode fiber and SC connectors, for connectivity to the corresponding modules in the ISM Switches.
5. The ESU Switches’ performance must provide at a minimum:
a. No less than 100Mbps aggregate bandwidth.
6. The ESU is not required to be SNMP manageable.
BC. Servers
1. Each MDF shall receive an applications/file server.
2. Each MDF shall receive a web server.
3. General specifications for each server shall be:
a. Dual 600MHz Processor with 256K cache, at a minimum.
b. Redundant power supply.
c. 768MB RAM.
d. 6 Bay Hot-pluggable 1” or 1.6” Backplane Storage Array.
e. Single Channel Expandable RAID Controller w/16MB Cache – RAID 5.
f. Three 18GB Ultra-2/LVD SCSI 7200 RPM hard drives.
g. On-board 10/100TX Network Interface Card, RJ-45 connector.
h. A fiber optic based 1000Base-SX Network Interface Card, SC connectors.
i. 35/70GB Internal DLT or DAT Tape Backup drive.
j. 1.44MB Floppy Disk Drive
k. 14/40X IDE or SCSI CD-ROM.
l. PS-2 Mouse.
m. 104-Key Keyboard.
n. 17” Monitor.
o. Microsoft Windows 2000 Server Network Operating System (NOS).
p. UPS as specified in 2.02.F.
BD. Uninterruptible Power Supply (UPS).
1. Each UPS shall provide network grade line conditioning, lightning and surge protection.
2. The UPS shall have a 10Base-T Network Interface Connection with SNMP management and serial connection for management by a server.
3. The UPS shall be of the always on or online mode type.
4. The UPS shall be capable of initiating a safe system shutdown by a server. All necessary hardware and software shall be included.
5. The UPS shall provide the capability to support the continued operation of the connected equipment provided as part of this specification for a period of 1 hour in the MDF, ½ hour in the IDF and ¼ hour in the computer lab/library LDF after a loss of 110VAC power input to the unit.
BE. Warranty. All LAN equipment shall have a 3-year standard warranty. The warranty shall cover the fan assembly, power supplies, and the device itself. The warranty shall consist of onsite 48-hour part replacement and the remaining two years with 48-hour part replacement. All equipment must have the option for the LAUSD to extend the warranty beyond the initial 3 years. Equipment manufactures must have a toll free 24-hour help center to assist with troubleshooting and operation of the equipment.
2.03 CABLING EQUIPMENT
A. Precast Concrete Pull Boxes and Manholes. Boxes shall be traffic type for H20 loading of the sizes appropriate for fiber optic cabling, precast in sections with the cast iron cover marked Communications. Manholes and pull boxes shall be equipped with 1) Pull irons -
½-inch diameter. Galvanized steel, 2) two cable rack irons on each wall, 3) floor drain into sump, and 4) 10 foot by ¾-inch copper ground rod.
BF. Underground Raceway. Schedule 40 PVC conduit conforming to UL 651 concrete encased with 3-inch concrete minimum shall be used for exterior underground work.
BG. Surface Mount Raceway.
1. Electric Metallic Tubing shall be rated in accordance with UL 797.
2. Non-Metallic Surface Mount Raceway shall be two piece PVC construction with two separate channels. Raceway shall be UL listed for flammability and up to 600 Volts. Raceway fitting shall maintain a minimum 2-inch bend radius for future fiber optic installation. This allows the District the flexibility to install another type of media in another section at a later time.
BH. Multi-Mode Fiber Cables.
1. The optical fiber shall be multimode, graded-index optical fiber waveguide with nominal 62.5/125 mm core/cladding diameter. The optical fiber shall comply with ANSI/EIA/TIA-492AAAA.
2. The mechanical and environmental specifications for multi-mode fiber distribution cables shall be indoor/outdoor, tight-buffered type cables. The cable shall meet the requirements of the National Electrical Code (NEC) section 770. The Contractor shall confirm that the cable is listed for the specified application.
3. Each cabled optical fiber shall meet the graded performance specifications of ANSI/TIA/EIA 568A (Chapter 12). Attenuation shall be measured in accordance with ANSI/EIA/TIA-455-46, -53, or -61. Information transmission capacity shall be measured in accordance with ANSI/EIA/TIA-455-51 or -30. The cable shall be measured at 23 °C + 5 °C.
4. Multi-mode fiber optic cable shall meet the following minimum performance requirements:
a. At 850 nanometers (nm), the minimum bandwidth capability required is 160 MHz-Kilometer.
b. 1300nm, the minimum bandwidth capability required is 500 MHz-Kilometer.
c. Maximum attenuation at 850nm is 3.5 decibels (dB) per kilometer.
d. Maximum attenuation at 1300nm is 1dB per kilometer.
5. Contractor shall utilize GbE Gigabit Enhanced 62.5/125 Multi-mode fiber to exceed standard bandwidth and distance limitations. Cable manufacturer shall guarantee that the multi-mode optical cable will support Gigabit Ethernet transmission up to 550 meters using SX optics.
BI. Single-Mode Fiber Cables.
1. Single-mode optical fibers shall be Class IVa Dispersion-Unshifted Single-mode Optical Fibers and shall comply with ANSI/EIA/TIA-492BAAA. Fiber conductors shall have a nominal core diameter of 8.7 microns. Cable shall have transmission window centered at 1300 and 1550 nanometer wavelengths.
2. The mechanical and environmental specifications for single-mode fiber distribution cables shall be indoor/outdoor, tight-buffered type cables. The cable shall meet the requirements of the National Electrical Code (NEC) section 770. The Contractor shall confirm the cable is listed for the specified application.
3. Each cabled optical fiber shall meet the attenuation performance specifications of table ANSI/TIA/EIA 568A (Chapter 12) table 12-3. Attenuation shall be measured in accordance with ANSI/EIA/TIA-455-78A or -61. The cable shall be measured at 23 °C + 5 °C.
4. Single-Mode fiber optic cable shall meet the following minimum performance requirements:
a. Maximum attenuation at 1310nm is 1.0 decibels (dB) per kilometer for Inside Cable
b. Maximum attenuation at 1550nm is 1.0 decibels (dB) per kilometer for Inside Cable
BJ. Fiber Optic Connectors. Duplex SC type, MM or SM connector.
BK. Fiber Optic Light Interconnection Units (LIUs). Rack mounted with the capacity to handle a minimum of 18 terminated fibers. Complete kit to include all panels’ bulkheads and supporting hardware.
BL. Fiber Optic Distribution Shelves. 72 port rack mountable, with SC-compatible bulkheads and built-in cable management.
BM. Fiber Optic Jumper Cables.
1. Multi-mode 62.5/125 or Single-mode duplex cable, OFNR rated. Length: 3 meters, at a minimum, pre-manufactured with SC-SC connectors with same transmission characteristics as the terminated fibers.
2. Fiber optic patch cables shall be jacketed with polyvinyl chloride with yellow indicating a single-mode patch cable and orange indicating a multi-mode patch cable. The cable shall meet all requirements of TIA/EIA-568B.3 except for the more stringent requirements on bandwidth and attenuation identified in this Specification.
BN. Fiber Optic Innerduct. Materials: 1-inch, corrugated, orange PVC, outside plant rated with pullrope.
BO. Category 5E Cable. Horizontal Enhanced category 5 cabling shall be 24 AWG, 4-pair UTP, UL/NEC rated, with appropriately rated PVC jacket. Individual conductors shall be FEP insulated. Cable shall meet ANSI/TIA/EIA minimum requirements for return loss, propagation delay, delay skew, NEXT loss, PSNEXT loss, FEXT loss, ELFEXT, and PSELFEXT for 4-pair CAT 5E cabling as detailed in ANSI/TIA/EIA-568-A-5, TSB-95.
BP. Category 5E Inserts. All CAT 5E data inserts shall be wired to the T568B wiring pattern. CAT 5E data inserts shall meet ANSI/TIA/EIA minimum requirements for return loss, propagation delay, delay skew, NEXT loss, PSNEXT loss, FEXT loss, ELFEXT, and PSELFEXT for CAT 5E connecting hardware as detailed in ANSI/TIA/EIA-568-A-5, TSB-95.
A. Category 5E Patch Cords. Patch cords shall be CAT 5E rated, 24 AWG, 4 pair assemblies. Patch cords shall be factory assembled by the manufacturer of the cabling system.
B. Category 5E Patch Panels. Patch Panels shall be provided in 24 or 48 port compliments with modular jack ports wired to T568B. Patch panels shall be augmented with cable support bars in rear to properly dress cable. All patch panels shall meet ANSI/TIA/EIA minimum requirements for return loss, propagation delay, delay skew, NEXT loss, PSNEXT loss, FEXT loss, ELFEXT, and PSELFEXT for CAT 5E connecting hardware as detailed in ANSI/TIA/EIA-568-A-5, TSB-95.
O. Outlet Gang Boxes. As a minimum, the telecommunications outlet box shall be capable of housing four CAT5E terminations or two terminated optical fibers. The outlet box shall have the ability to secure the optical fiber cable and provide for a minimum fiber bend radius of 25 mm (1 in). Typically, the telecommunications outlet/connector box shall consists of a 100 mm x 100 mm (4 in by 4 in) electrical box or surface mount box.
P. Faceplates. Faceplates shall be constructed of ABS molding compound and have the ability to accommodate one insert.
Q. Fiber Faceplates. Fiber faceplates shall be constructed of ABS molding compound and have the ability to accommodate a minimum of two duplex MM or SM SC connectors.
R. Data Relay Rack. Racks shall be 19 inches wide and 84 inches high, constructed of 6061-T6 structural grade extruded aluminum and shall meet EIA standards. Racks shall be listed to the UL 1863 Standard for Communication Circuit Accessory.
S. Floor Standing Cabinet. Floor-standing equipment cabinet for MDF or IDF, if required, locations: cabinet shall provide at least 84 inches of total mounting space for 19-inch panels and 24 inches of interior depth. Cabinet shall be constructed of 14- or heavier gauge steel, with adjustable mounting rails tapped for #10-32 screws on EIA spacing front and rear, and shall be provided with zone 4 earthquake reinforcing kits. Cabinet shall be provided with a heat dissipation fan; textured antique finish; matching side panels and louvered top panel; a hinged, key locking, bronze-tinted acrylic window door in front; and a full length, hinged, key-locking rear door. Select door swing to accommodate site conditions.
T. Wall-Mounted Cabinet. Wall-mounted equipment rack for IDF and LDF locations. Cabinet shall provide at least 45 inches of mounting space for 19-inch panels (26 rack spaces) and 24 inches of interior depth. Cabinet shall be all welded steel construction with 14-gauge carbon steel mounting rails, tapped for #10-32 screws on EIA spacing, fully adjustable front-rear. Cabinet shall have top or side ventilation capability and a heat dissipation fan, a Plexiglas front door, and locks on both front and rear sections, and shall be provided with white powder coat finish.
U. Warranty. Contractor must provide a manufacturer system performance warranty for the installed data cabling system and components for a minimum of fifteen years after system is turned over to the Owner. All components of the optical data backbone cable system including cables, distribution shelves, LIUs and connectors must carry a fifteen year single manufacturer’s applications warranty at speeds of 1 Gbit/sec.
PART 3 – EXECUTION AND INSTALLATION
3 EXECUTION AND INSTALLATION OF LAN EQUIPMENT
A. Routers.
1. The router shall provide the interface to connect the local network to connect to centralized DWAN access points.
2. The router shall provide the point of DWAN connection from the BBS for the entire LAN.
B. Backbone Switch (BBS).
1. There is only one BBS per campus site.
2. The BBS is the central point to which all connections from IDFs, libraries, and computer labs are terminated. It is also the point at which connection to the DWAN is made along with connectivity to designated primary campus servers.
3. The Backbone Switch constitutes the intelligent electronics portion of the collapsed backbone architecture upon which the system design is based.
C. Intermediate Switch–Managed (ISM) and Edge Switch–Managed (ESM).
1. ISM Switches are used, as required, to extend connectivity throughout the designated coverage area for each IDF via the use of the backbone-cabling infrastructure. Additionally, ESM Switches, as required, are to extend connectivity in computer laboratories and libraries to the MDF via patch cables installed between horizontal and vertical patch panels located within the IDF.
2. An IDF shall, at a minimum, consist of one ISM unless the functionality is provided via the BBS. Switches shall be provided as required to extend connectivity to all active drops terminated at a given IDF. If the total number of assigned and spare ports in an IDF exceeds 32, multiple uplink connections shall be provided from that IDF so that the total number of ports using each uplink connection shall not exceed 32.
3. The number of computer labs installed with ESMs shall be:
a. One in an elementary school.
b. Two in a middle school.
c. Three in a high school.
D. Edge Switch-Unmanaged (ESU)
1. An ESU Switch shall be provided to afford connectivity in each of the classrooms.
2. Each ESU shall be wall-mounted or desktop mounted within reasonable distance to 110VAC power source. The District prefers desktop mounted.
3. An ESU shall be used, when required, to provide connectivity in the following areas:
a. Administrative Office and Open Areas.
b. Auditoriums.
c. Faculty Office Areas.
d. Gymnasiums.
e. Multi-purpose Rooms.
f. Other Instructional Areas.
g. Staff Break Areas.
E. Servers
1. All servers shall be installed in the MDF.
2. The servers shall be configured to interoperate with the UPS and provide a safe shutdown in the event of loss of power.
F. Uninterruptible Power Supply (UPS).
1. Each MDF, IDF and LDF shall be installed with a UPS. In the event an MDF has an existing UPS, the existing UPS will be used in lieu of a newly provided UPS.
2. Each classroom shall be installed with a surge protector to adequately protect all electronic equipment installed in that room.
3.02 EXECUTION AND INSTALLATION OF CABLE SYSTEM
Site Conditions: Contractor shall examine the areas and conditions under which the work of this Section will be performed. Unsatisfactory conditions will be reported to the school district before the Contractor begins work.
A. Conduit Subsystem.
1. Excavation.
a. Call LAUSD facilities manager at least 24 hours prior to excavation.
b. Locate and protect existing construction, plant life, and utilities.
2. Conduits.
a. Construct underground ductlines of individual conduits encased in concrete. Ducts shall not be smaller than 4 inches in diameter unless otherwise specified. The concrete encasement surrounding the bank shall be rectangular in cross-section and shall provide at least 3 inches of concrete cover for ducts.
b. Separate conduits by a minimum concrete thickness of 3 inches. Provide plastic duct spacers between ducts, at a maximum 5-0 ft O.C.
c. The top of the concrete envelope shall not be less than 30 inches below grade.
d. Duct lines shall have a continuous slope downward toward manholes and away from buildings with a pitch of not less than 4 inches in 100 feet. Except at conduit risers, accomplish changes in direction if runs exceeding a total of 10 degrees, either vertical or horizontal, by long sweep bends having a minimum radius of curvature of 25 feet. Manufactured bends shall have a minimum radius of 36 inches for ducts of 3 inches in diameter and larger.
e. Stagger joints of the conduit by rows and layers so as to provide a duct line having maximum strength. During construction, protect partially completed duct lines from the entrance of debris such as mud, sand, and dirt by means of suitable conduit plugs. As each section of a duct line is completed from manhole to manhole, draw a brush through having the diameter of the duct, and having stiff bristles until the conduit is clear of all particles of earth, sand, and gravel then immediately install conduit plugs.
f. In some instances, conduits shall be placed and mounted to exterior and interior portions of a building to extend conduit pathways from the manholes to the building’s MDF or IDF. The Contractor is responsible for the engineering of these pathways and placement of the conduit as specified on the drawings. Conduit shall be EMT or galvanized steel depending on conditions and exposure to elements.
g. Where connections to existing duct lines are required, cut off the ducts and remove loose concrete and dirt from duct bank. Expose existing conduits and perform new work as required. Install new encasement with new duct line and/or pull box.
h. Conduits to communication outlets are to be a minimum of one inch. A dedicated conduit will serve each outlet box.
i. Empty conduits shall be installed with pull string for future installations.
j. No conduit run, without a pull box, is to be longer than 100 feet and shall contain no more than two 90-degree bends.
k. Interior pull boxes, if needed, must be accessible. Do not place pull boxes above fixed ceilings, HVAC ducts, or piping.
l. Conduit shall be sized as per Table 4.4-1, EIA/TIA-569.
m. Conduit shall be reamed to eliminate sharp edges and terminated with an insulated bushing.
n. An UL-approved fire stop must be used when penetrating fire rated walls or floors.
o. If a joint trench method is used, the vertical and horizontal separations between communications facilities and other facilities shall be:
1) 75 mm (3 in) of concrete.
1) 100mm (4 in) of masonry.
2) 300mm (12 in) of well-tamped earth.
p. Refer to Part 4 - Addendum for additional specifications for conduit sizing.
B. Manholes and Pull Boxes.
1. Manholes and pull boxes shall be installed in paved areas wherever possible and each box shall be kept a minimum of one (1) foot clear of edge of paving. Top of box shall align with finish surface of paving, or 2 inches above finished grade if installed in earth. Install boxes where runoff water will not drain to the box.
2. Provide pulling irons on opposite walls and below horizontal centerlines of ducts and cemented openings, and in bottom. Install pulling irons with each end hooked around a reinforcing bar.
3. Install a floor drain into sump containing two cubic yards of crushed rock, minimum size 48 inches deep and 36 inches diameter. Provide a 36-inch length of 6-inch diameter tile pipe extending down into sump and fill with gravel. Cover sump with grille.
4. Install ground rod in each concrete pull box. Locate near a wall with 6-inch projection above floor for ground clamps. Permanently ground all metal equipment cases, cable racks, etc. in pull boxes. All ground conductors shall be #4-0 bare stranded copper.
5. Pull boxes shall not be used for splicing cable.
A. MDFs/IDFs/LDFs.
1. Room size will be determined by the size and use of the building. Room size should be large enough to mount electronic equipment to support LANs such as relay racks, switches and routers.
2. If backboards are necessary for MDFs, IDFs and LDFs they are to be ¾-inch plywood good on one side and painted with two coats of flat light colored fire-retarding paint on all sides. The size of the backboards will be determined by the size of the building and space provided.
3. Provide a MDF, IDFs and LDFs at each campus. The MDF shall be located as close to the 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 TIA/EIA 568A. IDFs will distribute network connections to the classrooms. LDFs will provide connection for the workstations within computer labs and libraries.
4. Provide an LDF in each computer laboratory and library. These LDFs shall consist of a wall-mounted cabinet containing the switches, associated 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. This LDF shall include all CAT 5E cable, connectors, outlet plates and cable routing materials necessary to complete the data path from the workstation into the switch ports.
5. Provide cabling for each classroom, administrative area and other instructional area which shall consist of associated fiber optic patch cords, connectors, seven CAT 5E patch cords and wire management required to distribute a duplex SC data drop to the area.
6. MDF/IDF/LDF CAT 5E Termination Installation.
a. CAT 5E patch panels shall be installed in 24 or 48 port compliments.
b. Horizontal wire management shall be supplied between every 48 ports.
c. Cables shall be dressed and terminated in accordance with TIA/EIA-568A, T568B manufacturer’s recommendations and/or best industry practices.
d. Pair untwist at the termination shall not exceed one half an inch for CAT 5E connecting hardware.
e. Bend radius of the cable in the termination area shall not be less then 4 times the outside diameter of the cable.
f. Cables shall be neatly bundled and dressed to their respective panels or blocks.
g. The cable jacket shall be maintained as close as possible to the termination point.
h. Each cable shall be clearly labeled on the cable jacket behind the patch panel at a location that can be viewed without removing the bundle support ties.
i. Patch cords used at the rack or cabinet shall be CAT 5E, 24 AWG, 4-pair assemblies.
7. MDF/IDF/LDF Fiber Termination Hardware Installation
a. Fiber slack shall be neatly coiled within the fiber termination panel. No slack loops shall be allowed external to the fiber panel(s).
b. Each cable shall be individually attached to the respective termination panel by mechanical means.
c. Each fiber cable shall be stripped upon entering the termination panel and the individual fibers routed in the termination panel.
d. Each cable shall be clearly labeled at the entrance to the termination panel.
e. Dust caps shall be installed on the connectors and couplings at all times unless physical connection is maintained.
BQ. Racks/Cabinets.
1. Racks and cabinets shall be floor or wall mounted, as required, and provided with tip bars and all additional accessories as required for a complete functional system. Racks and cabinets shall be seismically braced and attached to horizontal ladder racking or cable tray with ¾ inch threaded rod. There must be enough space in the MDF/IDFs to accommodate 31-inch aisle-ways.
2. Contractor shall bond together all cable grounds to distribution rack, and bond rack to building electrical panel ground for ground continuity. Continuity shall be checked with an ohmmeter between adjacent components. Contractor shall certify to the District that ohmmeter readings are no greater than 1(. Equipment racks shall be grounded to building ground per EIA/TIA 607.
3. Contractor shall provide keys and locks for all cabinets and equipment; locks shall be keyed to a Corbin #60 key for access to operate equipment and Corbin #70 key for access to service equipment.
BR. Backbone Cabling.
1. Observance of proper bending radius and pulling strength requirements of all cables shall be observed during handling and installation. All cables, splice cases, punch down frames, LIUs, patch panels and supporting hardware shall be installed to product specifications.
2. All outside plant fiber shall be installed in 1-inch corrugated innerduct.
3. All interior innerduct shall be Plenum or Riser rated if exposed in hallways, classrooms or other occupied spaces. Riser rated innerduct shall be used on all floor-to-floor fiber optic cabling.
4. All interior fiber shall be run in EMT conduit or 1-inch corrugated innerduct. Innerduct run without conduit shall be properly strapped and supported every 4’ and with a minimum clearance above the ceiling tiles of 6” to allow removal of the tile(s) for maintenance and inspection purposes. Innerduct shall be properly rated for indoor or outdoor applications.
5. All cables in panels, cabinets, trays, and racks shall be neatly grouped and strapped using tie-wrap cable straps. All cables and panels shall be clearly identified at both ends with a unique cable numbering system.
6. The backbone fiber optic cable shall be installed in configurations based upon the physical topology and logical connections required as follows:
a. If the MDF-to-IDF cabling distance is 450m or less:
1) The installed cable from MDF-to-IDF shall be a minimum of 12 strands multi-mode and 6 strands single-mode.
3) The multi-mode fiber optic strands shall be installed in multiples of 6 with a minimum of 50% spare multi-mode fiber strands after all required fiber optic links are activated.
b. If the MDF-to-IDF cabling distance is greater than 450m:
1) The installed cable from MDF-to-IDF shall be a minimum of 12 strands multi-mode and 12 strands single-mode.
4) The single-mode and multi-mode fiber optic strands shall both be installed in multiples of 6 with a minimum of 50% spare single-mode and multi-mode fiber strands after all required fiber optic links are activated.
7. There shall be no un-terminated fiber optic strands.
BS. Horizontal Cabling.
1. Horizontal distribution cable for data circuits from IDFs to LDFs, classrooms and other instructional areas shall be 4 strands of fiber optic cable, CMP or CMR rated as required.
a. If the MDF-to-IDF cabling distance is 450m or less, the installed horizontal fiber cable for the computer labs and libraries shall be a minimum of 4 strands multi-mode to two (2) SC duplex data drops. Data drops shall be collocated with the LDF installation effort described in this Specification.
b. If the MDF-to-IDF cabling distance is 450m or more, the installed horizontal fiber cable for the computer labs and libraries shall be a minimum of 4 strands single-mode to two (2) SC duplex data drops. Data drops shall be collocated with the LDF installation effort described in this Specification.
c. Other areas (Administrative Areas, Classrooms, Auditoriums, Gymnasiums and other Instructional Areas) shall be a minimum of 4 strands multi-mode to two (2) SC duplex data drops. Data drops shall be collocated with the LDF installation effort described in this Specification.
2. Horizontal distribution cable for data circuits within an LDF shall be CAT 5E, 4-pair unshielded twisted pair, CMP or CMR rated cable as required. Quantities of cables to each outlet shall be in accordance with the room type.
a. Cable shall be installed in accordance with manufacturers' recommendations and best industry practices.
b. Cable raceways shall not be filled greater than the NEC maximum fill for the particular raceway type.
c. Cables shall be installed in continuous lengths from origin to destination (no splices).
d. The cable’s minimum bend radius and maximum pulling tension shall not be exceeded.
e. If a J-Hook or trapeze system is used to support cable bundles in dropped ceiling or concealed ceiling spaces, all horizontal cables shall be supported at a maximum of four-foot intervals. At no point shall cable(s) rest on acoustic ceiling grids or panels.
f. Cable shall be installed above fire-sprinkler and systems and shall not be attached to the system or any ancillary equipment or hardware.
g. Cables shall not be attached to ceiling grid or lighting support wires.
h. Any cable damaged or which has been subjected to installation practices outside of those specified within this document shall be replaced by the Contractor.
i. Unshielded twisted pair cable shall be installed so that there are not bends less than four times the cable outside diameter.
j. Pulling tension on 4-pair UTP cables shall not exceed 25-pounds for a single cable or cable bundle.
3. The required CAT 5E data drops shall be installed into each of the following areas in quantities from the LDF as follows:
a. Library: Twelve CAT 5E data drops per area.
b. Computer Laboratories: Up to Thirty-Two CAT 5E data drops per area.
BT. Labeling and Marking.
1. Contractor shall complete Cable Location Chart and mount it near distribution panel in each wiring closet.
2. Contractor shall mark all distribution panels, cables, and cover plates with computer-generated labels. Each drop shall be labeled with the same identifier on the receptacle faceplate, inside the junction box, on the cable at the jack, on the cable at the patch panel, on the termination side of the patch panel, and on the patch side of the patch panel. Cable markers shall be located within 2 inches of the end of the cable jacket and shall be directly readable. Panel labels shall be computer-generated and printed by a laser jet printer. A disk with the label files shall be part of the turnover package.
3.03 CERTIFICATION AND TESTING OF LAN EQUIPMENT
All hardware components (e.g. switches, routers) will be tested for proper installation (per manufactures’ recommendations) and configuration. All components will be tested using standard TCP/IP tests that collectively address network layer connectivity, IP packet path routing, and network performance. These tests are to be conducted during normal operation and for each site individually.
A. Internet Control and Message Protocol (ICMP) Ping Test. This test verifies the network layer for connectivity by using Ether-type frame pings to reach IP target addresses and obtain or verify four results—the target IP address, the local media access control (MAC), the number of responses, and the response time. Each test will be conducted from all areas to the Servers located in the MDF and from at least one connection per VLAN to at least one connection on all other VLANS, as required. Each test includes two steps, if necessary:
1. Obtain the four results by performing an address resolution protocol (ARP) for the target IP address and by verifying the ping.
2. If test 1 is unsuccessful, obtain the four results by executing an ARP for the default router, then use the acquired MAC address to determine the IP address, send an ICMP echo request, and monitor for the ICMP reply.
B. Trace Route/Path Discover. This test determines the path IP packets follow and reports each router encountered in the path. Testing elicits an ICMP TIME-EXCEEDED response from each router encountered. Each hop is tested three times to help identify changing routes.
B. Configuration Test. This test verifies that each new network port is operational. Perform an ICMP ping from each port not previously tested, ensuring each port has a link light indicating port operability. Any failures in any one port shall constitute the return of the failed equipment for new network equipment from the appropriate vendor.
3.04 CERTIFICATION AND TESTING OF CABLING SYSTEM
All cables and termination hardware shall be 100% tested for defects in installation and to verify cable performance under installed conditions. All conductors of each installed cable shall he verified useable by the Contractor prior to system acceptance. Any defect in the cabling system installation including but not limited to cable, connectors, feed through couplers, patch panels, and connector blocks shall be repaired or replaced in order to ensure 100% useable conductors in all cables installed.
A. Copper.
1. Each cable shall be tested for continuity on all pairs and/or conductors.
2. Enhanced Category 5 data cable shall be performance verified using an automated test set.
3. This test set shall be capable of testing for the continuity and length parameters defined above, and provide results for the following tests:
a. Attenuation.
b. Ambient Noise.
c. Attenuation to Crosstalk Ratio.
d. Pair-to-pair NEXT loss (new limits).
e. PSNEXT loss.
f. Return Loss.
g. Pair-to-pair ELFEXT.
h. PSELFEXT.
i. Propagation delay.
j. Delay skew.
4. Test results shall be automatically evaluated by equipment, using the most up-to-date criteria from the ANSI/TIA/EIA-568-A-5 standard and the result shown as pass/fail.
5. Test results shall be printed directly from the test unit or from a download file using an application from the test equipment manufacturer. The printed test results shall include all tests performed, the expected test result, and the actual test result achieved.
BU. Fiber Optics.
1. Contractor shall terminate, test and document all multi-mode and single-mode fiber optic cables with approved connectors at the drop locations and on approved fiber optic patch panels at the MDF, IDFs and LDFs. No fiber optic cables shall remain un-terminated.
2. Fiber optic cables shall meet all EIA/TIA performance standards and shall be tested in accordance with all applicable standards. Light source and power meter tests shall be done in both directions, while optical time domain reflectometer (OTDR) tests shall be performed from the MDF with sufficient launch cables installed at both ends of the fiber run to clearly identify the mated connectors.
a. Multi-mode fiber optic cable runs shall be tested in both directions with a power meter and light source combination that can verify distance and attenuation.
b. Single-mode fiber optic cable runs less than or equal to 100m shall be tested in both directions with a power meter and light source combination that can verify distance and attenuation.
c. Single-mode fiber optic cable runs greater than 100m shall be tested with an OTDR, light-source, and power meter.
BV. Completion. Contractor’s work for each school installation shall be considered complete after the following have been accomplished:
1. All system testing has been completed, Contractor certifies that entire system is in working order, and Cable Test Forms have been submitted to the District.
2. All ceiling panels previously removed have been put back in place.
3. All system labels have been put in place.
4. All construction debris and scrap materials have been removed from project site.
5. All marked up, project record documents have been returned to the District.
6. All unused customer material has been returned to the District.
7. The District has successfully completed acceptance testing of the network installation.
8. The District’s Inspector has inspected and accepted the installation.
PART 4 – ADDENDUM
Prospective bidders may wish to use the following drawing, charts, and the typical material cost form as guidance.
LAN General Depiction:
[pic]
Conduit Capacity Chart
|Inside |Trade |Cable Outside Diameter |
|Diameter |Size |mm(in) |
|mm | | |
| | |3.3 |
| | |(0.13) |
| |Width |Length |Depth | |
|21 mm (3/4) |100 mm (4 in) |300 mm (12 in) |75 mm (3 in) |50 mm ( 2 in) |
|27 mm (1) |100 mm (4 in) |400 mm (16 in) |75 mm (3 in) |50 mm ( 2 in) |
|36 mm (1-1/4) |150 mm (6 in) |500 mm (20 in) |75 mm (3 in) |75 mm (3 in) |
|41 mm (1-1/2) |200 mm (8 in) |675 mm (27 in) |100 mm (4 in) |100 mm (4 in) |
|53 mm (2) |200 mm (8 in) |900 mm (36 in) |100 mm (4 in) |125 mm (5 in) |
|63 mm (2-1/2) |250 mm (10 in) |1050 mm (42 in) |125 mm (5 in) |150 mm (6 in) |
|78 mm (3) |300 mm (12 in) |1200 (48 in) |125 mm (5 in) |150 mm (6 in) |
|91 mm (3-1/2) |300 mm (12 in) |1350 mm (54 in) |150 mm (6 in) |150 mm (6 in) |
|103 mm (4) |375 mm (15 in) |1520 mm (60 in) |200 mm (8 in) |200 mm (8 in) |
Typical Material Cost Sheet:
System Costs Materials Labor Taxes
a. OSP Conduit Install
b. OSP Pullbox/Manhole
Install
c. Backbone Fiber Installation,
including termination and
testing
d. Data Relay Racks
e. Data equipment cabinets
f. Intra-Building Fiber Backbone
g. Horizontal CAT 5E Drops
h. Horizontal Fiber optic Drops
including termination and
testing.
Acronyms
ANSI American National Standards Institute
ARP Address Resolution Protocol
BBS Backbone Switch
BICSI Building Industry Consulting Services, International
BOOTP Bootstrap Protocol
CMAS California Multiple Award Schedule
CAT 5E Category 5E
DHCP Dynamic Host Configuration Protocol
DVMRP Distance-Vector Multicast Routing Protocol
DWAN District’s Wide Area Network
EIA Electronic Industries Alliance
ESM Edge Switch-Managed
ESU Edge Switch-Unmanaged
FEP Fluorinated Ethylene Propylene
HVAC Heating, Ventilation, and Air Conditioning
ICMP Internet Control and Message Protocol
IDE Integrated Drive Electronics
IDF Intermediate Distribution Frame
IEEE Institute of Electrical and Electronic Engineers
IP Internet Protocol
IPX Internetwork Packet Exchange
ISA Industry Standard Architecture
ISDN Integrated Services Digital Network
ISM Intermediate Switch-Managed
ISP Internet Service Provider
LAN Local Area Network
LAUSD Los Angeles Unified School District
LIU Light Interconnection Unit
MAC Media Access Control
MDF Main Distribution Frame
MDF-BBS Main Distribution Frame Backbone Switch
MPOP Main Point of Presence
NEC National Electrical Code
NTP Network Time Protocol
OFNR Optical Fiber Non-Conductive Riser
OTDR Optical Time Domain Reflectometer
PCI Peripheral Component Interconnect
PCMCIA Personal Computer Memory Card International Association
PIM Protocol-Independent Multicast
PRI Primary Rate ISDN
RMON Remote Network Monitoring
RMON2 Remote Network Monitoring Version 2
SCSI Small Computer System Interface
SNA Systems Network Architecture
SNMP Simple Network Management Protocol
TIA Telecommunications Industry Association
TCP Transmission Control Protocol
UL Underwriters Laboratories Inc.
UPS Uninterruptible Power Supply
UTC Coordinated Universal Time
UTP Unshielded Twisted Pair
VLAN Virtual Local Area Network
WAN Wide Area Network
WEP Wired Equivalent Privacy
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