DCSD-CIP Intercom Installer Prequalification RFQ-Exhibit B-DCSD Division 27 Specs v5.0.pdf

DCSD Division 27 Specs

COMMUNICATIONS& NETWORK SYSTEMS TECHNICAL

STANDARDS

QuentinRockwell Text Box RFQ Exhibit B

DCSD Network Standards V5.0 1-1-2025

Table of Contents

Purpose

27 00 00 Communications

27 02 00 General Requirements

27 02 05 Additional Requirements

27 02 10 Documentation of Design

Fiber

Copper Telco (Telecommunications)

Copper Cat5e/Cat6

27 02 20 Codes and Standards

27 02 20.10 Regulatory Requirements:

27 02 20.30 Codes Insulated Cable Engineers Association (ICEA) National Fire Protection Association (NFPA) Telecommunications Grounding (Earthing), Bonding

27 02 20.40 Standard References

27 02 25 Abbreviations, Acronyms and Definitions

27 02 25.20 Abbreviations and Acronyms

27 02 25.40 Definitions

27 02 30 Project Drawings

27 02 50 Substitutions

27 02 67 Completeness of Work

27 02 70 Project Conditions

27 02 73 Delivery Storage and Handling

27 04 00 Execution

Expectations

Safety

27 04 01 General Requirements Execution

27 04 10 Equipment Installation

27 04 20 Structured Cabling Systems (SCS)

27 04 20.10 Fiber

27 04 20.20 1FB (Fixed Business) Analog - Telco Lines (Dial tone services)

27 04 20.30 Removal and Reinstallation of Structured Cabling

27 04 33 Penetration and Sleeves

27 04 39 Cleaning

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27 04 60 Special Responsibilities and Information

27 05 00 Common Work - Results for Communications

27 05 25 Cooling (HVAC) MDF / IDF

27 05 26 Grounding and Bonding (Earthing)

27 05 26.10 General Requirements

27 05 26.15 Grounding and Bonding Materials

27 05 28 Pathways for Communications Systems

27 05 29 Hangers and Support for Communications Systems

27 05 29.10 Suspension, Conduits & Sleeves

27 05 32 Fire Stopping for Telecommunications Systems

27 05 33 Conduits and Backboxes for Communications Systems

27 05 53 Identification for Communications Systems

27 05 53.11 DCSD Patch Panel & Faceplate Labeling

27 05 53.22 DCSD Conduit & Cable Labeling

27 05 53.33 DCSD Access Point & Camera Biscuit Labeling

27 05 53.55 DCSD Fiber Labeling

27 05 53.66 DCSD Drawing documentation of Labeling

27 10 00 Structured Cabling testing

27 10 10 General Requirements

27 10 20.10 Copper Cabling System Testing

27 10 20.20 Optical Fiber Cable Testing

27 10 20.30 Test Documentation

27 11 00 Communications - Equipment Room (MDF / IDF)

27 11 13 Communications - Entrance Protection

27 11 14 Communications - MDF / IDF

27 11 14.10 Communications – MDF / IDF Powering

27 11 16 Communications - Cabinets, Racks, and Enclosures

27 11 19 Communications - Termination Block and Patch Panels

27 11 23 Communications - Cable Management and Ladder Rack/Tray MDF/IDF

27 11 25 Communications - Patching Cables in the MDF/IDF

27 13 00 Communications - Backbone Cabling

27 13 13 Communications - Copper Backbone Cabling

27 13 23 Communications - Optical Fiber Backbone Cabling

27 13 23.10 Communications - Optical Fiber to Mobiles

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27 13 33 Communications – ISP Fiber Splice Closures

27 13 50 Communications - OSP Fiber Splice Closures

27 15 00 Communications - Horizontal Cabling

27 15 13 Communications - Copper Horizontal Cabling

27 15 43 Communications - Faceplates and Connectors, Classrooms and Offices

27 15 43.10 Communications - Classrooms & Offices

27 15 43.12 Communications - Mobile Classrooms & Offices

27 15 43.14 Communications - Outside Cabling

27 15 43.15 Communications - Fiber Connectors

27 15 43.17 Pedestals & Handholes

27 15 43.20 Communications - Multimedia audio/video connectors and adapters

27 15 43.25 Communications - Multimedia audio/video HDMI to Cat5e/CAT6

27 16 00 Communications - Connecting Cords, Devices and Adapters

27 16 19 Communications - Patch Cords, Station Cords, Cross Connect Wire

27 16 19.01 Communications - Coax Cords

27 16 19.02 Communications - Copper Patch Cords

27 116 19.02 Patching cables in the MDF/IDF

27 16 19.03 50-micron MM Optical Fiber Cords

27 21 33 Data Communications – Wireless Access Points (AP’s or WAP’s)

27 21 43 Point to Point (PtP) / Point to Multi-Point (PtMP)

27 21 53 Overhead Paging System – Intercom System

27 22 00 Examples

Fig 1 Typical Layout - MDF & IDF

Fig 2 DCSD Copper standards typical layout

Fig 3 48 Port PP labeling before patch cables installed

Fig 4 48 Port PP example with patch cables installed

Fig 5 Typical wall plate

Fig 6 Typical Rack layout with patch panels, network switches and cable management

Fig 7 Service Loop (Storage Loop) and cable support example

Fig 8 Ground Bus bar Example

Fig 9 Typical Pedestal

Version History

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Purpose

The following information covers relevant technical specifications for a prototypical school for the Douglas County School District. Professional architects and engineers will be required to use this information to design, from a generic standpoint, a prototypical building's communications infrastructure.

These represent minimum requirement and installation methods approved by DCSD IT department.

To the extent that a remodel project's intent is to bring an older school up to the current educational specifications, and create a continuity of equity between facilities, this document in its generic form shall be the driving force behind the architect's design. Remodel projects will also require a site-specific planning/design meeting(s) to address any unique items that can/will arise during the construction process.

27 00 00 Communications

This document's objective is to provide Architects and other designers with a design-requirements and guidelines document that will help them plan the telecommunications facilities for the DCSD Schools, Administrative buildings, and Support Buildings. The Scope of Work includes the telecommunication inside plant (ISP) and outside plant (OSP) cabling and support facilities required by new buildings or additions and/or upgrading of existing buildings and facilities. The document is a design guide and is not a project specifications document.

27 02 00 General Requirements

1) You should be familiar with both “Douglas County School District” Division 26 & 27 standards.

2) DCSD IT follows BICSI standards such as BICSI Telecommunication Spaces.

a) See 27 02 20.40 Standard References Section.

3) All equipment and materials shall be new, Underwriters Laboratories (UL) listed for the purpose intended and bear the UL label. Repair or replace any damaged or defective materials prior to final acceptance and at no additional cost to the Owner.

4) Any changes or addition materials or equipment installations, MUST be pre-approved by DCSD IT department.

a) Failure to do so may require it to be moved or removed at your costs.

b) This includes any rack or wall mount item(s).

c) Equipment location will be pre-approved by DCSD IT only.

5) General compliance requirements: Provide a complete and operable system in compliance with project drawings, specifications, referenced standards, applicable building codes, and Authority Having Jurisdiction (AHJ) requirements. Scope of this includes planning, design, materials, equipment, labor, configuration, programming, testing, and documentation costs for complete and operable system that meets all requirements indicated on drawings or contained in specifications. Comply with all contract documents, specifications, drawings, manufacturer’s instructions, and Owner and AHJ requirements. In case of conflict among applicable documents or standards, contractor shall notify owner’s representative in writing of apparent conflict, and then comply with most stringent requirements unless otherwise directed in writing from owner’s representative. Work Includes all items required for complete system whether or not identified in specification or drawings.

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27 02 05 Additional Requirements

1) The selected vendor to provide the installation of this system shall use the “DCSD IT Division 27 Network Approved Materials & Parts”.

2) Vendor shall be certified in all aspects of design, installation and testing of the products described herein.

3) Contractors and vendors shall follow all DCSD on premise policies.

4) The vendor will have a minimum of five years of recent experience on structured cabling systems of similar type and size.

5) The vendor will own and maintain the tools and equipment approved by the cabling system manufacturer for successful installation and testing of Optical, Category 5e (Cat5e), Category 6 (CAT 6), balanced, twisted pair and multi-mode fiber distribution systems.

6) All materials will be inspected prior to installation.

a) Any damaged materials must NOT be used.

b) Materials damaged during installation must be replaced.

27 02 10 Documentation of Design Fiber

a) Should show loss budget based on design. (If designed outside of DCSD)

b) Final would show tested end to end loss in both directions.

c) Show per fiber sheath live (lit) and dead (dark) fibers being used.

i) (i.e., 1-4, 5-12D) Where 1-4 are active and 5-12 are not used.

d) Fiber to multiple locations must show destination.

i) 1-2,3-6D to Bldg A, 7-8,9-12D to Bldg B.

e) If 12 count stops in utility cabinet or distribution pedestal but several 6 count fibers continue.

i) 1-2,3-6D to Ped A, 1-2,3-6D to Bldg A.

ii) 7-8,9-12D to Ped A, 1-2,3-6D to Bldg B.

f) Any fibers “Not Terminated” (NT)

i) 1-4,5-8D,9-12NT to IDF-101

Copper Telco (Telecommunications)

g) 25 or 50 balanced twisted pair.

h) Design showing start and where terminating. (i.e., MDF PP0 1-24 to IDF-101 PP0 1-24, MDF

PP0 25-48 to IDF-102 PP0 1-24) Copper Cat5e/Cat6

i) Typically done on AutoCAD showing all network jack locations.

j) Final as-builts would include all final network jack locations and labeling.

27 02 20 Codes and Standards 27 02 20.10 Regulatory Requirements:

1) Comply with all applicable federal, state, and local code requirements and ordinances as listed in 1.02.A Standards, as interpreted by the Authorities having jurisdiction. Comply also with all requirements of the Utility Companies.

2) Applicable codes and ordinances and local interpretation thereto shall take precedence when they conflict with or are more stringent than the electrical design. Otherwise, the Drawings and Specifications shall take precedence.

3) Notify the General Contractor in writing prior to starting work of any discrepancies or conflicts between the Drawings and Specifications and the local codes and ordinances. Otherwise, Contractor shall assume full responsibility for all modifications to the work arising from the discrepancies.

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4) Permits and Fees: Secure and pay all permits, fees, taxes, royalties, licenses, and inspections in connection with the Division 27 work.

27 02 20.30 Codes Insulated Cable Engineers Association (ICEA)

a) ANSI/ICEA S-80-576-2002, Category 1 & 2 Individually Unshielded Twisted-Pair Indoor Cables for Use in Communications Wiring Systems

b) ANSI/ICEA S-84-608-2002, Telecommunications Cable, Filled Polyolefin Insulated Copper Conductor

c) ANSI/ICEA S-90-661-2002, Category 3, 5, & 5e Individually Unshielded Twisted-Pair Indoor Cable for Use in General Purpose and LAN Communication Wiring Systems

d) ICEA S-102-700-2004, ICEA Standard for Category 6 Individually Unshielded Twisted- Pair Indoor Cables for Use in LAN Communication Wiring Systems Technical Requirements, 2004

National Fire Protection Association (NFPA)

e) NFPA 70E, Standard for Electrical Safety Requirements for Employee Workplaces,

f) NFPA 72, National Fire Alarm Code®

g) NFPA 75, Standard for the Protection of Electronic Computer/Data Processing Equipment

h) NFPA 76, Recommended Practice for the Fire Protection of Telecommunications Facilities

i) NFPA 90A, Standard for the Installation of Air Conditioning and Ventilating Systems

j) NFPA 101, Life Safety Code®

k) NFPA 255, Standard Method of Test of Surface Burning Characteristics of Building Materials

l) NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-

Handling Spaces

m) NFPA 780, Standard for the Installation of Lightning Protection Systems NFPA 5000TM, Building

Construction and Safety Code

n) NFPA 70, National Electrical Code® (NEC®)

Telecommunications Grounding (Earthing), Bonding

o) ANSI J-STD 607-B, Commercial Building Grounding (Earthing) and Bonding Requirement for

Telecommunications

p) ANSI/NECA/BICSI 607:2011, BICSI Standard for Telecommunication Grounding & Bonding, Planning, and

Installation Methods for Commercial Building

q) ANSI/TIA 607B: 2011, Generic Telecommunication Bonding and Grounding (Earthing) for Customer

Premises

r) BICSI TDMM 13th Edition:2014, BICSI Telecommunication Distribution Method Manual

s) IEEE 1100:2005, Recommended Practice for Power and Grounding Electronic Equipment

t) IEEE 81:2012, Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System

u) ISO/IEC 30129:10.2015, International Standard Information Technology: Generic for Customer Premises

v) NFPA 70:2017 (NEC), National Electrical Code of USA Article 250 & Article 800

w) Motorola R56:2005, Standards and Guidelines for Communication Sites

27 02 20.40 Standard References

1. National Electrical Manufacturers' Association (NEMA)

2. Underwriters' Laboratories (UL)

3. Institute of Electrical Electronic Engineers (IEEE)

4. American Standards Association (ASA)

5. American Society for Testing Materials (ASTM)

6. National Bureau of Standards (NBS)

7. National Fire Protection Association (NFPA)

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8. American Disabilities Act Guidelines (ADAG)

9. Federal, State and Local Regulations

10. American National Standards Institute (ANSI)

11. National Electric Code (NEC)

12. National Electrical Safety Code (NESC)

13. Building Industries Consulting Services International (BICSI) Telecommunication. Distribution Methods

Manual (TDMM) 13th Ed.

14. ANSI/TIA/EIA - 568 - B.1 - Commercial Building Telecommunications Cabling Standard - Part 1: General

Requirements.

15. ANSI/TIA/EIA - 568 - B.2 - Commercial Building Telecommunications Cabling Standard - Part 2: Balanced

Twisted Pair Cabling Components.

16. ANSI/TIA/EIA - 568 - B.3 - Optical Fiber Cabling Components Standard.

17. ANSI/TIA/EIA - 569 - A Commercial Building Standard for telecommunications Pathways and Spaces.

18. ANSI/TIA/EIA - 598 - A - Optical Fiber Cable Color-Coding.

19. ANSI/TIA/EIA - 604 - 3 - FOCIS 3 Optic Connector Intermateablility Standard.

20. ANSI/TIA/EIA - 606 - Administration Standard for Telecommunications Infrastructure of Commercial

Buildings.

21. ANSI/TIA/EIA - 607 - Commercial Building Grounding and Bonding Requirements for

Telecommunications.

22. ANSI/TIA/EIA - 493AAAB - Detail Specification for 50mm Core Diameter/125mm Cladding Diameter Class la Multimode, Graded - Index Optical Waveguide Fibers.

23. ANSI/ICEA S-83-596 - Fiber Optic Premises Distribution Cable.

24. ANSI/ICEA - S - 87 - 640 - Fiber Optic Outside Plant Communications Cable.

25. FCC CFR 47 Part 68 - Connection of Terminal Equipment to the Telephone Network.

27 02 25 Abbreviations, Acronyms and Definitions 27 02 25.20 Abbreviations and Acronyms

ACD Automatic Call Distribution AC Above Counter AFF Above Finished Floor AP Access Point AWG American Wire Gauge BAS Building Automation System BDA Bi-Directional Amplifier BICSI Building Industry Consulting Services International CAT5 Category 5 Cable (not used anymore) Rated 100MHz for 100MBASE-T to 100 meters.

Cat5e Category 5e Cable rated 100MHz for 1GBASE-T to 100 meters (CAT5E is the same thing) CAT6 Category 6 Copper Cable 250MHz rated for 10GBASE-T to 55 meters. 1G to 100 meters.

CAT6A Category 6A Copper Cable 500MHz rate for 10GBASE-T to 100meters.

CATV Cable Television (typically RG59, RG-6 and RG-11 used in buildings) CDDI Copper Distributed Data Interface CMP Communications Multipurpose Plenum: Plenum rated cable CMR Communications Multipurpose Riser: Riser rated cable DC Direct Current DWDM Dense Wave Division Multiplexing EF Entrance Facility EIA Electronic Industries Association

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ELFEXT Equal-Level Far-End Crosstalk EMI Electromagnetic Interference ER Telecommunications Equipment Room FEXT Far End Crosstalk FOCIS Fiber Optic Intermateability Standard Gbps Gigabits per second HC Horizontal Cross-connect HSM High Speed Migration HVAC Heating, Ventilation, and Air Conditioning IC Intermediate Cross-connect IDF Intermediate Distribution Frame - Termination frames, relay racks, and cable management IEEE Institute of Electrical and Electronics Engineers IM Information Management IP Internet Protocol ISDN Integrated Services Digital Network ISO International Standards Organization ISO/IEC International Standards Organization/International Electrotechnical Commission LAN Local Area Network LC Type of Fiber Connector MC Main Cross-connect MAC Media Access Control Mbps Megabits per second MDF Main Distribution Frame, consisting of carrier entrance rooms and head-end MMF Multi-mode fiber optics, 50 or 62.5-micron laser optimized core MUTOA Multi-User Telecommunications Outlet Assembly NEC National Electric Code NEMA National Electrical Manufacturers Association NEXT Near End Cross Talk NRTL Nationally Recognized Testing Laboratories OSHA Occupational Safety and Health Act OSP Outside Plant PBX Private Branch Exchange: telephone switch PDS Premises Distribution Systems (See SCS) PoE Power over Ethernet (IEEE 802.3af) POP Point of Presence PSACR Power Sum Attenuation-to-Crosstalk Ratio PSAFEXT Power Sum Alien Far-End Crosstalk PSAELFEXT Power Sum Alien Equal Level Far-End Crosstalk PSANEXT Power Sum Alien Near-End Crosstalk PSELFEXT Power Sum Equal Level Far-End Crosstalk PSNEXT Power Sum Near-End Crosstalk SCC Security Command Center SCS Structured Cabling System, or Structure Connectivity System; a complete cabling system SFF Small Form Factor (also see SFP) SFP Small Form-factor Pluggable transceiver (also see SFF) SMF Single-mode fiber optics, 8.3-micron core TC Telecommunications Closet TE Telecommunications Enclosure TEF Telecommunications Entrance Facility TIA/EIA Telecommunications Industry Association/ Electronic Industries Association TO Telecommunications Outlet TR Telecommunications Room UL Underwriters Laboratories UPS Uninterruptible Power Supply UTP Unshielded Twisted Pair

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VoIP Voice over Internet Protocol WAO Work Area Outlet WAP Wireless Access Point WAN Wide Area Network

27 02 25.40 Definitions

Access Floor - A floor system that has removable floor panels.

Asbuilts – Also called As-built. Drawings showing how things are actually built. (Not design drawings).

Meaning post installation or construction showing what was completed or installed regardless of design.

Building Backbone Cabling – Cabling used to connect Floor Distributors (FD) or other local collection points to the Building Distributor (BD) or Main Distribution Frame (MDF). Building backbone cabling typically carries aggregate traffic and, as such, impacts multiple network devices and users. Building backbone cabling may include either fiber optic or copper cabling or both.

Category 3 (Cat 3) – A category of transmission performance, defined in TIA standards, that specifies electrical properties up to 10 MHz. Cat 3 is the minimum performance grade permissible and is used typically for analog voice distribution. (Never to be used for network traffic)

Category 5e (Cat 5e) / Class D – A category/class of transmission performance that specifies electrical properties up to 155.5 MHz. Capable of supporting copper-based, four-pair Gigabit Ethernet (IEEE 802.3ab 1000BASE-T) applications. Category 5e is defined in TIA-568-C standard. Class D is defined in the ISO 11801 standard.

Category 6 (Cat 6) / Class E – A category/class of transmission performance that specifies electrical properties up to 250 MHz. Refer to the TIA- 568-C family of standards for more information on Category 6 and ISO/IEC 11801 for more information on Class E requirements. Also, refer to CENELEC EN50173.

Category 6A (Cat 6) / Class EA– A category/class of transmission performance that specifies electrical properties up to 500 MHz and capable of supporting data applications operating at 10Gbps. Refer to the TIA- 568-C family of standards for more information on Category 6 and ISO/IEC 11801 for more information on Class EA requirements.

Certification – The testing and documentation of the transmission performance (e.g., Category 5e / Class D) of a permanent link or channel, based on sweep frequency (where applicable) testing of numerous parameters with results compared to a range of acceptable values. This project requires 100% certification (with documentation) of all permanent link cabling at the time of installation. Channel certification is optional and is the responsibility of the group using the channel.

Conduit - A raceway of circular cross-section.

DMarc - A demarcation point (sometimes referred to as demarc, dmarc, dmark, point of demarcation, or network boundary point) is the physical point where the public switched telephone or data network ends and a customer's personal network or the private network of an organization or business begins.

Entrance Facility (EF) – Termination point of service provider cables that have entered the building and location of service demarcation point (MPOE) and interconnection point to the network. Commonly referred to as Telco Room or MDF.

Floor Distributor (FD) – Termination point for horizontal cabling and interconnection point for network access. Commonly referred to as IDF. Referred to as Floor Distributor (FD) in international and European industry standards and Horizontal Cross-connect (HC) - FD quantities and locations are determined by building size and geometry so that all points served are within 90 meters (295 cable feet) of an FD. The FD feeds all Telecommunications Outlets (TO’s) in its service zone. All FD’s in a building are linked to the building’s Building Distributor (BD) via backbone cabling.

Horizontal Cabling – Cabling used to connect individual work area outlets to local Floor Distributors (FD) or other collection points. Unlike backbone cabling, horizontal cabling does not typically carry aggregate traffic and, as such, impacts only single network devices or users. In buildings, horizontal cabling almost exclusively consists of copper cabling. Fiber optic cabling may be used where situations dictate but, unlike horizontal

QuentinRockwell copper cabling, horizontal fiber optic cabling is not installed in advance as default building facilities. At this writing, horizontal copper cabling in many networks can support Gigabit (1Gb/s) Ethernet applications as well as other applications of similar bandwidth.

Permanent Link – A stationary cabling segment, consisting of the permanently installed cable and the permanently affixed jack at both ends (typically at the outlet faceplate and closet patch panel, or on a patch panel on both ends). The concept assumes that, while patch cords might be disconnected or moved over time, the permanent cable and jacks will not be disturbed, and the electrical characteristics of the permanent link will remain unaltered.

Plenum -A space within the building designed for the movement of environmental air; (i.e., a space above a suspended ceiling or below an access floor.)

Raceway - Any channel designed for holding wires or cables; (i.e., conduit, electrical metal tubing, busways, wireways, ventilated flexible cableway.)

Spine – also called a backbone, the main communications cables in an IDF.

Storage Loop – Also called “Service Loop”, is a coil of cable at the beginning or end of a cable run to allow for repairs or adjustments in location.

Telecommunications Spaces (TS) - Telecommunications Spaces (TS): The term TS refers to space allocated within a building to provide a secure operating environment for telecommunications cabling and termination facilities and/or network equipment. TS’s shall be designed and provisioned per ANSI/TIA-569 Telecommunications Pathways and Spaces and per the BICSI Telecommunications Distribution Methods Manual (TDMM), most recent edition. Depending on the building size, design, and network requirements, one or more of the functions of a TS may be combined into one space. The primary functions housed in TS’s are:

1) Telecommunications Rooms (TR)

2) Entrance Facility (EF)

3) Equipment Room (ER)

4) Area Distribution Frame (ADF)

5) Main Distribution Frame (MDF) - Also called Building Distribution Frame (BDF)

6) Intermediate Distribution Frame (IDF)

Main Distribution Frame (MDF) - The MDF’s described above shall be designated for the exclusive use of the following telecommunication systems: (See Fig 1 at the end of this document)

1) Voice systems.

2) Data network systems; including uninterruptible Power Supplies (UPS) both rack-mount and stand-alone supporting these systems.

3) Wireless network systems.

4) Cellular telephone and in-building DAS systems.

5) Video surveillance systems.

6) Access control systems.

27 02 30 Project Drawings

1) Provide documentation for New Construction to provide drawings such as:

a) Pre-project As-builts. Drawings based on the existing network. This can be PDF.

b) Preliminary new design for review (This can be PDF).

i) Data drop location and count.

ii) WAP locations.

iii) MDF design.

iv) Fiber location and path.

c) Construction drawings based on changes after review (This can be PDF).

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i) Please include accurate room numbering.

d) Final As-builts that include the following (Must be AutoCAD 2015-2021).

i) Actual Room numbers.

ii) Accurate locations for:

(1) Data Drops with patch panel and port number.

(2) Access Points with patch panel and port number.

(3) CATV drops.

(4) Analog drops.

(5) Point to point cabling such as HDMI.

(6) All continuous conduit runs from MDF, IDF, Telco room or Entrance rooms.

(a) Conduit Sleeves should be drafted and marked as a sleeve.

iii) Actual fiber routes to within 5 feet.

iv) Actual conduit or innerduct routes to within 5 feet.

v) Fire Alarm Panel, Elevator, Gas meter, and irrigation controller locations. These typically have Network or Analog lines run to them for communication.

vi) Incoming services locations and path to DMarc.

vii) Actual Fiber length including storage loops. (Use sheath footages)

2) Provide documentation for Remodel of Existing location such as:

a) Preliminary design for review (This can be PDF).

i) Data drop location and count.

ii) WAP locations.

iii) MDF design.

b) Construction drawings based on changes after review (This can be PDF).

i) Please include accurate room numbering.

c) Final As-builts that include the following (Must be AutoCAD 2015-2021).

i) Room numbers.

ii) Accurate locations for:

(1) Data Drops with patch panel and port number.

(2) Access Points with patch panel and port number.

(3) CATV drops.

(4) Analog drops.

(5) Point to point cabling such as HDMI.

d) If applicable provide AutoCAD drawing showing the following:

i) Actual fiber routes if applicable.

ii) Fire Alarm Panel, Elevator, Gas meter, and irrigation controller locations. These typically have Network or Analog lines run to them for communication.

iii) Incoming services locations and path to DMarc.

3) Conduit runs must be labeled and drafted, showing where they are physical in the building.

4) IT designs must be depicted on their own prints (IT 1.0, etc). These designs MUST NOT be co-located on the Electrical prints, or any other design/ construction prints.

27 02 50 Substitutions

1) Requests for substitutions must be submitted with complete product data to DCSD IT.

2) Requests to substitute for previously approved materials or equipment shall be submitted by the contractor to DCSD IT for review.

3) Substitution requests shall include all required submittals and shall be complete with reasons for substitutions and savings that will accrue to DCSD IT if substitutes are approved.

4) Substitutes will be considered only if equal or superior to that specified.

5) Approval of alternate or substitute equipment or material in no way voids the Contract Document requirements.

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27 02 67 Completeness of Work

1) The contractor is responsible for providing complete and usable work per contract documents. All materials and equipment shall be provided with all accessories and additional work required for field conditions, as well as additional work and accessories required for complete, usable, and fully functional construction and systems, even if not explicitly specified or indicated.

Telecommunications system in this Contract shall be provided as complete and operable systems in full compliance with requirements on drawings and specification requirements. Drawings are diagrammatic and specifications are performance-based, and Contractor shall provide all work required to comply with drawings and specifications, even if not explicitly indicated or specified.

2) Components of the SCS will be installed in a neat and professional manner. Wiring color codes will be strictly observed and terminations will be uniform throughout the system.

3) Identification markings and systems will be uniform.

4) Final As-builts that include the following (Must be AutoCAD 2015-2021).

a) Room numbers.

b) Accurate locations for:

i) Data Drops with patch panel and port number.

ii) Access Points with patch panel and port number.

iii) CATV drops.

iv) Analog drops.

v) Point to point cabling such as HDMI.

5) All areas must be cleaned, and trash disposed of.

a) In areas with dust, installed equipment must be clean.

6) All materials purchased for a project and not used will be delivered to DCSD IT.

27 02 70 Project Conditions

1) Field verification: Carefully verify location, use and status of all material, equipment, and utilities that are specified, indicated, or deemed necessary for removal. Verify that all materials, equipment, and utilities to be removed are completely inactive and will not be required or in use after completion of project. Replace with equivalent any material, equipment and utilities that were removed by Contractor that are required to be left in place.

2) Existing utilities: As applicable, do not interrupt utilities serving facilities occupied by Owner or others unless permitted under following conditions and then only after arranging to provide temporary utility services per requirements indicated:

a) Notify owner in writing in advance of proposed utility interruptions. Do not proceed with utility interruptions without Owner’s written permission.

b) Equipment installation:

i) Determine suitable path for moving unit substation into place; consider Project conditions.

ii) Verify clearance requirements and locate equipment to meet installation tolerances.

iii) Revise locations and elevations from those indicated to those required to suit Project.

27 02 73 Delivery Storage and Handling

1) General: Contractor shall be responsible for the deliveries, storing and handling of all materials relative to the SCS systems, including materials supplied by others that are part of the SCS installation contract. Material shall be stored and protected per manufacturer’s instructions.

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Contractor shall be responsible for the security of all material during installation. For all material provided by contractor, or delivered to contractor on site, contractor assumes full responsibility and liability for any material shortages, damage, or loss due to storage and handling methods.

27 04 00 Execution

Expectations

a) Install all equipment, cabling, support structures and parts used therein, in accordance with

DCSD IT approved parts and manufacturers installation recommendations.

Safety

b) All equipment and backbone structure shall be installed in a safe manner using the appropriate equipment as needed. Follow all safety standards set out by the manufacture for installation.

c) For Installation crews: hard hats, safety shoes, gloves, safety glasses and other relevant safety gear identified as being needed for a particular project must be worn.

d) Follow all safety protocols for Covid or other infectious diseases as required by DCSD.

e) Installers must have contractor identification and approved to be on DCSD property.

f) Contractors will have a DCSD contractors’ badge unless otherwise specified by DCSD Security.

2) All Telecommunications Room (TR) equipment shall be installed in a neat and workmanlike manner.

3) All methods of construction that are not specifically described or indicated in the Contract Documents shall be subject to the control and approval of the Network & Telecommunications Department.

4) Equipment and materials shall be of the quality and manufacturer indicated. The equipment specified is based on the acceptable manufacturers listed. Where "acceptable manufacturers” is stated, equipment shall be equivalent in every way to that of the equipment specified, and subject to approval.

5) Unless otherwise specified, provide a completely finished and operational system. Provide all supplemental and incidental items required for the successful operation of all systems even though such items are not specified or shown.

6) During the course of the project, the Owner's IT project manager or equivalent shall make weekly observation walks and a monthly walk with the Division 27 Subcontractor. The purpose of these walks will be to ensure the correct methods of installation of the communications infrastructure as well as using the proper materials.

27 04 01 General Requirements Execution

1) Coordinate systems, equipment, and materials installation with other building components.

2) Arrange for chases, slots, and openings in other building components during progress of construction, to allow for wiring, cabling, and equipment installations.

3) Install cabling, wiring, and equipment to facilitate servicing, maintenance, and repair or replacement of equipment components. As much as practical, connect equipment for ease of disconnecting, with minimum of interference with other installations.

4) Comply with all requirements and work indicated on drawings.

5) Avoid interference with structure and with work or other trades, preserving adequate headroom and clearing doors and passageways to satisfaction of Owner and per code requirements.

6) Provide suspended platforms, brackets, shelves, stands or legs as necessary for floor, wall and ceiling mounting of equipment as required.

7) Verify site conditions and dimensions of equipment to ensure access for proper installation of equipment without disassembly that would void warranty.

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27 04 10 Equipment Installation

1) Active Electronic Equipment (WAN, switch gear, servers, access points, intercom etc)

a) All projects will identify all active equipment that is in construction areas.

i) No active equipment may be “left in place” during construction without written permission by DCSD IT.

ii) Equipment installed or uninstalled will be done by DCSD IT or representative.

iii) No active equipment is to be moved without written permission by DCSD IT.

27 04 20 Structured Cabling Systems (SCS) 27 04 20.10 Fiber

1) Incoming Luman fiber is single mode and installed by Luman to their DMarc.

2) All Luman single mode fiber will be in an innerduct or conduit from point of entry of building to

MDF Fiber DMarc or other specified location.

3) Single mode fiber from Luman DMarc to DCSD WAN switch shall be in an innerduct.

4) Fiber used by DCSD will be Multi-Mode (MM) OM3 or OM4.

a) OM3 shall be used for all runs up to 550 meters including jumpers.

b) OM4 shall be used for all up to 550 meters needing higher modal bandwidth.

(1) Only OM4 to be used for 10G connections.

c) New builds shall use LC connectors at fiber patch panels.

d) Old build will use ST connectors at fiber patch panels.

e) All DCSD MM fiber will be in innerduct, dedicated conduit, or armored.

f) All fibers between MDF and IDF will be terminated.

g) Fiber counts for a project will be determined by DCSD IT.

5) Fiber to mobile has its own set of specifications.

6) All Fiber shall be tested using ANSI/TIA/EIA-568-B.3 standards for type of fiber being tested.

7) DCSD Loss Budget is 3.5dB typical. Anything over 3.5dB up to a maximum of 5dB must receive approval by DCSD IT.

8) Special runs over 550 meters must be reviewed by DCSD IT and consider using OS2 single mode fiber.

9) Any fiber using flooded cable (Icky-Pick) must be fully cleaned from the point the sheath was removed to the end of the fiber before the terminator is installed.

10) Outside fiber in conduit must have 14 gauge or larger Orange tracer wire installed with it.

a) Tracer wire must be grounded at all dead ends. (see 27 05 29.10-2r iii)

11) Underground conduit in handholes must use Polywater or other DCSD approved sealant to prevent water from entering conduit.

12) Conduit sealant like Polywater will be installed with 2-3” of sealant as instructed by Polywater.

27 04 20.15 Fiber to Sport Fields

1) All fiber to sport fields will be Single Mode OS2 (SM OS2).

2) All fiber will be home run back to the MDF (main network closet).

3) SM fiber will be terminated with LC connectors.

4) SM fiber will be tested to 10G

5) All SM outdoor fiber will be in 2” conduit starting at the penetration point at the school building.

6) All interior SM fiber will be in 1.25” conduit from the outside penetration point to the MDF.

27 04 20.20 1FB (Fixed Business) Analog - Telco Lines (Dial tone services)

1) Incoming Luman 1FB (analog copper) is installed by Luman into their DMarc. (See Fig 2 at the end of this document).

2) Typical services using 1FB’s:

a) Two to fire alarm systems (required by code).

i) As of 9/1/2024 DCSD no longer uses telco 1FB copper lines to dial out for Fire Alarm or Burglar Alarm or DACT.

b) Two to DACT dialer.

c) Elevator (required by code).

d) Gas line. (for schools not on cellular or network)

e) 911 (Cisco SRST).

f) Emergency Red Phone.

3) All new builds will have Luman copper DMarc installed in MDF.

4) Luman will have a DMarc box they provide. This will have gas protection. Each live connection from

Luman DMarc will be connected to 66 block DMarc for testing purposes.

5) Should be terminated on 66 blocks. Then each pair cross connected to a patch panel 0 (zero) for easy connectivity.

6) Patch Panel 0 is for telco cross connect only between network closets. (24 port PP for 25 pair and

48 port PP for 50 pair - TBD by project and must be approved by DCSD IT).

7) ALL 24 or 48 pairs will be punched down.

8) If 25 pair cable is used on a 24-port patch panel, the 25th pair is not used.

27 04 20.30 Removal and Reinstallation of Structured Cabling

1) Removal.

a) Any Cabling that needs to be pulled back and re-installed, MUST receive the approval of DCSD

IT.

b) The General Contractor/Construction Manager, will have all unused, out of spec cabling no longer in use, be fully removed from project area. Basically remove old. For example, remove Cat5, Cat3, old security or camera cabling if not in use and will no longer be used.

c) With DCSD IT approval, “future use” cabling does not need to be removed.

d) Any cable that must be removed and reinstalled shall be tested prior to removal.

i) Any cables that are to be re-installed and does not pass minimum standards for that cable type, will be tagged and the project manager and DCSD IT will determine if that cable needs to be repaired, replaced, or wrecked out without replacement.

ii) This applies to Fiber (all strands), network cabling, copper telco cabling, security cabling etc.

2) Re-Install cabling.

a) All cables removed and reinstalled will be tested after re-installation.

i) Cables that do not pass minimum standards will be repaired or replaced.

ii) Where possible, and cable being re-installed shall meet all current network cabling standards.

iii) Re-Installed cabling shall have current jack and faceplate standards unless otherwise approved by DCSD to re-install old equipment.

27 04 33 Penetration and Sleeves

1) Prior consent.

a) The General Contractor/Construction Manager will make no penetration of floors, walls, or ceiling without the prior consent of the Architect and General Contractor/Construction Manager.

2) Sealing penetrations.

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b) Where penetrations through acoustical walls or other walls for cableways have been provided by the General Contractor/Construction Manager or made by the General Contractor/Construction Manager, such penetrations will be sealed by the General Contractor/Construction Manager in compliance with applicable code requirements and as directed by Architect or General Contractor/Construction Manager.

c) Where penetrations through fire-rated walls for cableways have been provided for the General Contractor/Construction Manager or made by the General Contractor/Construction Manager, such penetrations will be sealed by the General Contractor/Construction Manager as required by Architect or General Contractor/Construction Manager.

d) The General Contractor/Construction Manager will, prior to the commencement of on-site activities, submit details of any special systems to be used to the General Contractor/Construction Manager for review by the Architect.

e) Holes for the conduit sleeves going through a wall or ceiling tile, shall be cut to the same size as the conduit penetrating it, leaving little to no gap. (No more that ¼” gap max)

f) Any gap between the outside of the conduit and the wall/ceiling around it shall have firestop added to fill the gap.

g) Conduit Sleeves should be marked and labeled as a sleeve, then fire-stopped as needed.

27 04 39 Cleaning

1) Contractor is responsible for cleanup of debris daily.

2) Cost of cleanup is the responsibility of the Contractor.

3) During progress of work, remove equipment and unused material. Leave the building and premises in neat and clean condition. Perform cleaning and washing required to provide acceptable appearance and operation of equipment to satisfaction of Owner’s Representative.

4) After completion of Project, remove all materials, scrap, etc., relative to the work being done and leave the premises in a clean, orderly condition. Clean exterior surface of all equipment, including concrete residue, dirt, and paint residue. Final cleaning shall be performed prior to Project acceptance by Owner’s Representative.

27 04 60 Special Responsibilities and Information

1) Temporary utilities:

a) Where Existing, but not limited to, Network, Telephone or Security Services, must be maintained during construction/installation. The contractor will work with DCSD IT and/or Security to determine the best way to maintain said services.

27 05 00 Common Work - Results for Communications 27 05 25 Cooling (HVAC) MDF / IDF

1) MDF must have AC split installed in front of the rack with the network gear.

2) IDF must have AC Split if 3 or more switches are used and installed in front of the rack with the network gear.

3) All condensate drain tubing shall be secured to equipment (Unit, Pump, etc) using adjustable pipe clamps.

4) MDF or IDF shall NOT to be tied into building HVAC.

27 05 26 Grounding and Bonding (Earthing)

1) Follow all BISCI recommended Bonding and Grounding (Earthing) practices.

27 05 26.10 General Requirements

1) All Racks will be secured to the floor and using insulator kits. (Physical insulating layer)

a) Such as Chatsworth Products - Rack Base Insulator Kit.

b) This ensures ground from concrete and busbar (building steel) does not create a ground loop.

c) Insulator Kit is not needed for raised floor installation.

2) All racks shall be bonded and grounded (Earthing) to the appropriate grounding bar.

(See Fig 8 - Busbar example at the end of this document)

a) Equipment racks, cable trays and conduits shall be bonded together.

b) Use stainless steel hardware for fasten the two-hole ground lugs to the busbar.

c) Ground to either building service or building steel.

d) Minimum bend radius of 8” on all copper conductors.

e) Remove any paint or oxidation for clean bonding in all locations.

f) No more than 5V between any Ground and Neutral. (Typical 0 volts difference)

g) No more than 5V between Equipment A and Equipment B grounding.

3) Pedestals & Handholes

a) Tracer wire between pedestals and or handholes shall be installed and grounded at each end using appropriate grounding methods for tracer wire.

27 05 26.15 Grounding and Bonding Materials

1) Grounding busbars shall be .25” thick and solid copper.

(See Fig 8 - Busbar example at the end of this document)

2) Main Grounding Busbars (TMGB) should be minimum 4” x 12”.

3) Grounding Busbar (TGB) 2” x 10”.

4) Minimum #6 AWG copper ground conductor, installed for up to 13’ and #4 AWG for 14’- 20’ (feet) shall be used. (AWG size for lengths other than 0-13’ or 14’-20’ See TIA 607B & ISO/IEC 30129).

5) All copper ground conductors will be attached to TMBG or TGB using the appropriate size two-hole ground lugs.

a) Busbars must be predrilled.

27 05 28 Pathways for Communications Systems

1) Wire management.

a) Conduit and sleeves will have no more than 40% fill. (Plan accordingly).

b) For all new construction, one additional sleeve for future will be installed if at least one sleeve does not have 20% or less fill. (Example: two 3” sleeves, one filled to 40% and the other to 35%. Then you shall install an additional sleeve for future use. If one filled to 40% and another to 20%, no additional sleeve will be required.

c) Adding sleeves in existing buildings: add a new sleeve if existing sleeves are full or would be overfilled is you are adding cables to the sleeve. (40% fill is max)

d) All conduits and sleeves will have firestop putty or sealant including on the outside of the sleeve between the sleeve and the wall/ceiling. (see 27 04 33 – 2e)

e) DCSD does not use firestop for sleeve systems like EZ Path.

f) Use appropriately sized Metal J-Hooks (typical 2” or 4”) to guide cables out of Network.

g) Only Metal J-Hooks will be used. No bridal rings, straps, or wire tray. (Wire Tray ok in MDF/IDF only)

h) ALL cabling for new-build projects: Each trade such as, Intercom, Network, Camera will be in its own J-Hooks. J-Hooks are not to be shared with other trades.

i) Completed projects are allowed to utilize existing J-Hooks.

j) Where no J-Hooks exist, one or more must be installed to meet DCSD standards.

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k) Polyline or equivalent shall be installed with all cable runs in J-Hooks.

All cables, data, camera, card reader, intercom must use cable suspension as described in the document or in conduit.

2) AT NO TIME SHALL ANY CABLE BE INSTALLED LAYING ACROSS THE CEILING GRID.

27 05 29 Hangers and Support for Communications Systems

1) The work covered under this section consists of the furnishing of all necessary labor, supervision, materials, equipment, and services to completely execute the system of “non-continuous” cable supports as described in this specification.

27 05 29.10 Suspension, Conduits & Sleeves

1) MDF/IDF

a) See MDF / IDF section 27 11 14.

2) Outside MDF

a) Only use metal J-Hooks

i) NO bridal rings, plastic straps, or wire trays.

ii) See NVENT CADDY CAT HP J-HOOK.

iii) Typical 2” and 4” are used.

b) See 27 05 28 g-j for newbuild projects

c) D-rings may be used inside the MDF or IDF if properly attached to plywood wall.

d) J-Hook size determined on maximum 70% fill maximum.

e) All main cable runs will include Jet-line or equivalent installed.

f) J-Hooks must have retainer wire attached and closed.

g) Follow manufacturer’s specifications for cable loading.

h) J-Hooks will be attached above the ceiling grid. (See Fig 7 at the end of this document)

i) J-Hooks to be installed on average every 4’-5’ but within a max of 6’ spacing will be allowed when 5’ cannot be met. Over 6’ will not be allowed.

j) Follow manufacturers specifications for J-Hook loading.

k) Velcro shall not be used outside of MDF / IDF except at the service loop above termination of wall box or conduit to floor box.

l) Velcro is not allowed in cable runs when J-Hook spacing is done properly with retainer clips.

m) The pathways shall:

i) Have adequate support to withstand cable pulling.

ii) Be installed with at least (3 in) of clear vertical space above the ceiling tiles and support channels (T-bars) to ensure accessibility.

iii) Contain noncontinuous supports installed with additional space to allow for cable sag while keeping cables a minimum of (4 in) above ceiling grid.

n) Horizontal pathways or cables shall not rest directly on or be supported by:

i) Ceiling panels.

ii) Support channels (T-bars).

iii) Ceiling support wires.

iv) Other components of the suspended ceiling.

o) Conduits for cable runs.

i) Follow BICSI standards for cable installations in conduit.

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ii) Follow BICSI standards for conduit fill rate.

iii) Use EMT Conduit.

iv) EMT must be grounded.

v) Conduits will have Jet-line or equivalent installed.

vi) EMT runs must be fitted with the appropriate bushing.

vii) In conduit, no more than two 90° bends without a pull box.

viii) In conduit, insert a pull point or pull box at each bend having an angle from 100° to 180°.

ix) After install conduit shall be cleared of all obstructions.

x) Conduits for floor boxes shall not be less than 1” in diameter for cat5e (1.25” for cat6) and stub to the accessible ceiling through the nearest wall.

xi) Conduits for wall boxes shall not be less than ¾” in diameter for cat5e and 1” for cat6.

xii) Consider premade cables that may be installed for diameter such as HDMI and make sure it will fit in the conduit and not get stuck.

(1) Maximum 50’ HDMI cable length.

p) Open ceiling network wiring (Cat5e or CAT6). (See Fig 7 at the end of this document)

i) J-Hooks only may be used in open ceiling installation.

ii) Velcro may be used to suspend service loop only to red-iron or ceiling suspension.

iii) Velcro in above the ceiling grid or in Plenum space must be Plenum rated.

iv) Velcro may NOT be used to in the cable run to attach it to the red-iron. Only J-Hooks.

v) Conduit my NOT be used in the ceiling. Only in wall conduit stubbing in the ceiling for wall box.

vi) Cables must never be painted. Painted network cable will need to be replaced.

q) Conduits must be installed in the following areas:

i) Over hard-deck ceiling that is more then 10’ in length.

ii) Through boiler, mechanical or electrical rooms.

iii) In new build rooms from accessible ceiling stub out through to wall or floor box.

r) Conduits for outside services such as Fiber, Analog copper (telco) or CATV.

i) shall be watertight, and each service shall have their own conduit run. (NO SHARING

CONDUITS)

ii) Conduit size for outside services to be determined by service providers requirements.

iii) Underground conduits, Tracer wire grounding.

(1) Where conduits…