DIVISION 27: COMMUNICATIONS AND TECHNOLOGY DESIGN STANDARDS TABLE OF CONTENTS

Transcription

1 I. PURPOSE DIVISION 27: COMMUNICATIONS AND TECHNOLOGY DESIGN STANDARDS TABLE OF CONTENTS II. III. GENERAL A. STANDARDS B. DESIGN REQUIREMENTS C. TOPOLOGY 1. Voice 2. Data Connections 3. Voice over IP (VoIP) 4. Wireless Access Point (WAP) D. SUBMITTALS E. APPROVED CONTRACTOR F POST-INSTALLATION AND TEST SYSTEM DOCUMENTATION 1. Test Results 2. As-Built Drawings 3. Warranty DATA A. DATA DISTRIBUTION ROOMS 1. Data Communication Racks 2. Power Distribution 3. Plywood Backboard 4. Through Wall Penetrations 5. Conduits 6. Ladder Tray 7. Pathways 8. Jumper Trough 9. Service Entrance 10. Modular Service 11. Grounding 12. Sprinkler Heads 13. MDF Work Space 14. Floor-Mounted Server Cabinet 15. Lighting 16. Doors 17. Clearance 18. Finishes 19. Environmental Control 20. Intermediate Data Distribution Room (IDF) a. Data communication racks b. Wall mount racks/enclosures 21. Data Communications Enclosures (Portable Classrooms) 22. Telecommunication Vault BSD Division 27: Communications and Technology Design Standards Revised: Page 1 of 25

2 DIVISION 27: COMMUNICATIONS AND TECHNOLOGY DESIGN STANDARDS TABLE OF CONTENTS IV. STRUCTURED CABLING, DATA OUTLETS A. STRUCTURED CABLING 1. Open Cabling 2. Conduits 3. Cable Tray 4. Fire Stopping 5. Surface Mounted Raceway B. DATA OUTLETS 1. Standards Data Outlets 2. Floor Box Outlets 3. Data-Power Pole Outlet 4. Classrooms 5. Offices and Administrative Spaces 6. Special Purpose Spaces a. Computer labs b. Science labs c. Library d. Shops/vocational labs e. Gymnasium f. Auditorium g. Commons/cafeteria/multi-purpose rooms h. Elevator i. Art rooms j. Music rooms k. Custodial office l. Mechanical/electrical rooms m. Conference rooms n. Wireless access point (WAP) locations o. Modular and portable classrooms V. VOICE COMMUNICATIONS VOIP VI. VII. VIDEO A. VIDEO PROJECTION SYSTEMS B. INTERACTIVE WHITE BOARDS C. IN SCHOOL STUDIOS / BROADCAST D. CATV-TELEVISION DISTRIBUTION SYSTEM 1. Head End 2. Distribution 3. Cables 4. Hardware a. Connectors b. Splitters and taps c. Wall-plates CLOCK SYSTEMS BSD Division 27: Communications and Technology Design Standards Revised: Page 2 of 25

3 DIVISION 27: COMMUNICATIONS AND TECHNOLOGY DESIGN STANDARDS TABLE OF CONTENTS VIII. PAGING SYSTEMS A. EXISTING SYSTEM B. NEW SYSTEM C. SYSTEM CAPABILITIES D. INSTALLATION 1. Submittals 2. Qualifications 3. Warranty 4. Shop Drawings 5. Products 6. Station Speakers 7. Voice Coil E. CABLING F. SYSTEM COMPATIBILITY BSD Division 27: Communications and Technology Design Standards Revised: Page 3 of 25

4 DIVISION 27: COMMUNICATIONS AND TECHNOLOGY DESIGN STANDARDS I. PURPOSE This document is a narrative describing Beaverton School District s (BSD) Basis of Design for Telecommunication Infrastructure Standards. This document addresses telecommunications infrastructure standards including telecommunications and data distribution and wiring; video projectors; CATV distribution and wiring; audio paging; and clock systems. This document shall be used as part of the District s Construction Design Standards. The Architect/Engineer shall be responsible for bringing to the attention of the BSD Representative, any variances in design from these guidelines, and any opportunities for value engineering that provide long term benefit to the District. Any design changes shall be reviewed by BSD IT Staff for approval. The Architect/Engineer shall provide project-specific, detailed Division 27 specifications, drawings, diagrams, and instructions to assure that the District receives all required systems completely installed, wired, connected, tested, and ready for satisfactory operation by District personnel. These Division 27 Standards were developed with the intent of extending the trouble-free life of equipment, reducing future maintenance problems. II. GENERAL A. STANDARDS All telecommunication distribution designs shall be based on and shall comply with the following industry standards: ANSI/TIA/EIA A-1998: Optical Power Loss Measurements of Installed Multimode Fiber Cable Plant-OFSTP-14A ANSI/TIA/EIA-568-B.1-: Commercial Building Telecommunications Cabling Standard, Part 1: General Requirements ANSI/TIA/EIA-568-B.2-: Commercial Building Telecommunications Cabling Standard, Part 2: Balanced Twisted Pair Cabling ANSI/TIA/EIA-568-B.3-: Commercial Building Telecommunications Cabling Standard, Part 3: Fiber optic Cabling Components Standards TIA -569-B: Commercial Building Standard for Telecommunications Pathways and Spaces ANSI/TIA/EIA-598-: Color Coding of Fiber optic Cables ANSI/TIA/EIA-606-A: The Administration Standard for the Telecommunications infrastructure of Commercial Building ANSI -J-STD-607-A: Commercial Building Grounding and Bonding Requirements for Telecommunications ANSI/TIA/EIA-758: Customer Owned Outside Plant Telecommunications Cabling Standard NFPA-70: National Electric Code (NEC) All above referenced documents shall be the latest version, including addendum, in publication at time work is requested. In addition to the above telecommunications standards, all design documents shall comply with codes and requirements of the local Authority Having Jurisdiction (AHJ). This document does not replace any code, either partially or wholly. The Contractor must be aware of local codes that may impact this Project. BSD Division 27: Communications and Technology Design Standards Revised: Page 4 of 25

5 B. DESIGN REQUIREMENTS The telecommunication distribution system design shall provide a cost-effective and standards-based structured cabling system that is capable of supporting current and future voice, video and data applications over a common cabling plant. The system shall support, at a minimum, IEEE Ethernet applications including 10Base-T, 100Base-TX, 1000Base-T, and 1000Base. Classrooms should have a minimum of three data drop locations located on walls and one data drop location in the ceiling or wall at the LCD projector location. The structured cabling system will support voice, data, and imaging applications within District owned and leased public school facilities. This document describes the Structured Cabling System requirements to be met in the proposals for telecommunications cabling by Vendors and Contractors. These requirements encompass all materials, design, engineering, installation, supervision, and training services for the Structured Cabling System. The following are examples of the Structured Cabling Systems that can be bid for new construction and whole building renovations where all building structured cabling wiring is replaced. Where building renovations do not require the removal of the existing structured cabling system, the wiring system that is in place shall be matched to vendor to maintain warranties. The choice of a Structured Cabling Systems may be limited to the following vendors: Comscope/Systimax and Panduit. C. TOPOLOGY The data distribution system shall be a hierarchical star topology consisting of backbone cables connecting the Main Data Distribution Equipment Room (MDF) to Intermediate Distribution Rooms (IDF). Horizontal cables shall be installed from each Data Outlet to the MDF or IDF serving that area of the building. 1. Voice Voice backbone cabling from the MDF to each IDF shall be 100 ohm, multi-pair, unshielded twisted pair (UTP) cables. 2. Data Data backbone cables for new building construction shall be at minimum12-strand 50/125mm laser optimized multimode fiber optic cable. Fiber optic backbone cables shall terminate on duplex ST connectors, installed in rack mounted fiber optic patch panels with front access for easy access to fiber patch cables. Drop down door preferred over slide out trays. Backbone cables shall bear ratings suitable to their installed environment. In remodel and extensions to existing buildings field verity the existing fiber optic cable that is installed, which generally is 62.5/125 mm fiber, and provide the same cable for transmission compatibility. A typical Data Outlet shall be a flush mount faceplate containing two RJ45 outlets (jacks). Each RJ45 jack shall be a Category 6, 8-pin modular jack wired in a T568B pinout. The horizontal cables shall be 100 ohm, 4-pair, Category 6 UTP cables. The length of each horizontal cable shall not exceed 90 meters (29-0 ) regardless of medium. One end of a horizontal cable shall terminate at the Data Outlet. The other end of a horizontal BSD Division 27: Communications and Technology Design Standards Revised: Page 5 of 25

6 cable shall terminate on a rack mounted modular patch panel located in the nearest Data Distribution Room. Copper-based patch panels shall be 48 port (2U) only. Horizontal cables shall bear ratings that are suitable to their installed environment. Traditional voice connections (e.g., those supported by a TDM PBX) shall be cross-connected from the patch panel to a voice supply patch panel with modular patch cables. The voice patch panel is connected, via 100 ohm, 100 pair, Category 3 cable(s), directly to a wall mounted 110 cross-connect field in the MDF for demarc. 3. Data connections Data connections shall be an interconnection from the patch panel to an Ethernet switch using modular patch cables equal to the medium installed for horizontal (station) cable. An Ethernet switch in a MDF/IDF shall be connected to the intra-building data backbone cabling using a 50/125m fiber optic patch cable. In the MDF, the data backbone cables shall connect to the network hardware using appropriate length fiber optic patch cables. Active Electronics and fiber / copper patch cables will be furnished and installed by the District. BSD Division 27: Communications and Technology Design Standards Revised: Page 6 of 25

7 4. Voice over IP (VoIP) Voice over IP (VoIP) connections shall be an interconnection from the patch panel to a powered Ethernet switch (PoE) using Category 6 modular patch cables. A PoE Ethernet switch in a IDF shall be connected to the intra-building data backbone cabling using a 50/125m fiber optic patch cable connecting the Ethernet switch to the rack mounted fiber optic cabinet. The VoIP will typically be routed to the main MDF. Active Electronics and fiber/copper patch cables will be furnished and installed by the District. 5. Wireless access point (WAP) Wireless Access Point (WAP) connections shall be an interconnection from the patch panel to a powered Ethernet switch (PoE) using Category 6 modular patch cables. The PoE Ethernet switch in a Frame Room shall be connected to the intra-building data backbone cabling using a 50/125m fiber optic patch cable connecting the Ethernet switch to the rack mounted fiber optic cabinet. The WAP traffic will typically be routed to the main MDF. Active Electronics will be furnished and installed by the District. D. SUBMITTALS Under the provisions of a request for proposal, prior to the start of work, the Telecommunications Contractor shall: Submit copies of the certification of the company and names of staff that will be performing the installation and termination of the installation to provide proof of compliance of this specification and standards. Submit proof from manufacturer of Contractors good standing in manufacturer s program. Submit appropriate cut sheets and samples for all products, hardware, and cabling. Work shall not proceed without the BSD Representative's approval of the submitted items. The Telecommunications Contractor shall receive approval from the BSD Representative on all substitutions of material. No substituted materials shall be installed except by written approval from the BSD Representative after review by BSD IT staff. E. APPROVED CONTRACTOR The Contractor shall be fully conversant and capable in the cabling of structured low voltage cabling system such as, but not limited to data, voice, and imaging network systems. The following material vendors are approved by the District for Data wiring installation: Comscope/Systimax Solutions and Panduit The Contractor shall, at a minimum, possess the following qualifications: Possess those licenses/permits required to perform telecommunications installations in the State of Oregon. The approved Contractor must be an approved Certified Installer at a Plus tier and be qualified to install and provide the product s warranty. The copper installation and termination crew must be certified by the manufacturer. The Installer shall show proof of current Installer Certification (at a Plus tier) of the proposed Structured Cabling System via an updated certificate given after completing the manufacturer s required certification courses and or re-certification class given to BSD Division 27: Communications and Technology Design Standards Revised: Page 7 of 25

8 install the proposed Structured Cabling System. Submit references of the type of installation provided in this specification. Personnel trained and certified in fiber optic cabling, splicing, termination, and testing techniques. Personnel must have experience using a light meter and OTDR. Personnel trained in the installation of CAT6 rated pathways and support for housing horizontal, backbone, and campus cabling. Personnel knowledgeable in local, state, province, and national codes, standards, and regulations. All work shall comply with the latest revision of the codes, standards or regulations. When conflict exists between local or national codes, standards or regulations, the most stringent codes, standards, or regulations shall be followed. Personnel fluent in the use of Computer Aided Design (CAD) and possess and operate CAD software using DWG or DXF format or Microsoft VISIO. On data/telecommunications Projects with a contract value of $100, or more, the Contractor shall have a BICSI certified RCDD on staff or access to one under contract for Project design certification and management. F. POST-INSTALLATION AND TEST SYSTEM DOCUMENTATION Upon completion of the installation, the Telecommunications Contractor shall provide three full documentation sets to the BSD Representative for approval. Documentation shall be submitted within 10 working days of the completion of each testing phase (e.g., subsystem, cable type, area, and floor). This is inclusive of all test results and draft as-built drawings. Draft drawings may include annotations done by hand. Machine generated CAD drawing(s) with all as-built information (final) shall be submitted within 30 working days of the completion of each testing phase (see As-Built Drawings). The Contractor shall provide copies of the original test results to the BSD Representative as soon as testing is complete. This can be in electronic data file format (see Test Results). The BSD Representative may request that a 10% random field re-test be conducted on the cable system, at no additional cost, to verify documented findings. Tests shall be a repeat of those defined above. If findings contradict the documentation submitted by the Telecommunications Contractor, additional testing can be requested to the extent determined necessary by the BSD Representative, including a 100% re-test. This re-test shall be at no additional cost to the District. 1. Test Results Test documentation shall be provided on disk within 15 working days after the completion of the Project. The disk shall be clearly marked on the outside front cover with the words Project Test Documentation, the Project name, and the date of completion (month and year). The results shall include a record of test frequencies, cable type, conductor pair and cable (or outlet) I.D., measurement direction, reference setup, and crew member name(s). The test equipment name, manufacturer, model number, serial number, software version, and last calibration date will also be provided at the end of the document. Unless the manufacturer specifies a more frequent calibration cycle, an annual calibration cycle is anticipated on all test equipment used for this installation. The test document shall detail the test method used and the specific settings of the equipment during the test, as well as, the software version being used in the field test equipment. The field test equipment shall meet the requirements of ANSI/TIA/EIA-568-B including applicable TSB s and amendments. The appropriate Level 3 tester shall be used to BSD Division 27: Communications and Technology Design Standards Revised: Page 8 of 25

9 III. DATA verify Category 5e, 6, and 6e cabling systems. TIA-568-B.1: Section 11 Cabling Transmission Performance and Test Requirements. Test results generated for each cable by the wire (or fiber) test instrument shall be submitted as part of the documentation package. The Telecommunications Contractor must furnish this information in electronic form (CD-ROM or Data DVD). When repairs and re-tests are performed, the problem found and corrective action taken shall be noted. Both the failed and passed test data shall be documented. 2. As-Built Drawings The as-built drawings are to include cable routes and outlet locations. Outlet locations shall be identified by their sequential number (BSD data drop labeling scheme) as defined in this document. Numbering, icons, and drawing conventions used shall be consistent throughout all documentation provided. The BSD Representative will provide floor plans in paper and electronic (AutoCAD 2008 or newer) formats on which as-built construction information can be added. These documents will be modified accordingly by the Telecommunications Contractor to denote as-built information as defined above and returned to the BSD Representative. As-built documentation and test results must be received 20 working days prior to Substantial Completion to allow Staff occupancy of the facility. 3. Warranty Documentation declaring Manufacturer s Warranty on structured cabling system shall be provided to the District within 30 days of finished installation. Manufacturer provides the warranty directly to the end-user. A. DATA DISTRIBUTION ROOMS These rooms are a dedicated, secure, and environmentally controlled space used to terminate telecommunications cabling and house connecting hardware and networking equipment. At a minimum, every school or District facility shall have a Main Data Distribution Equipment Room (MDF). Where the size of the facility dictates, additional Intermediate Data Distribution Rooms (IDFs) or expansion space for additional racks shall be provided. In addition, the MDF shall also serve as the connection point to the District s Wide Area Network (WAN) and the service entrance facility and demarcation point for Telco and Cable TV service providers. The MDF will also house the voice system, security, intercom/clock, fire alarm, and TV distribution head ends. It is imperative that the MDF be sized adequately to accommodate each of these systems. The minimum recommended MDF sizes in new construction Projects are: Elementary Schools Middle Schools High Schools 150 square feet 180 square feet 200 square feet Data rack clearance specifications must be adhered to see section below. BSD Division 27: Communications and Technology Design Standards Revised: Page 9 of 25

10 In remodel Projects, the MDF shall be sized as closely to these space requirements as possible given the constraints of the existing conditions. Whenever possible, the MDF shall be centrally located within a building to minimize horizontal cable lengths and the number of IDFs required. In school buildings, the MDF shall be on the first floor and in close proximity to the Main Office. The IDF shall be dedicated to the telecommunications function and related support facilities. The MDF and IDF should not be shared with electrical installations other than those for data communications. Equipment not related to the support of the data communications room (e.g., piping, ductwork, pneumatic tubing) shall not be installed in, pass through, or enter the MDF or IDF. 1. Data Communication Racks The MDF shall contain three or more, 19 by 7-0, freestanding data communications equipment racks for mounting patch panels, cable management, and networking equipment such as Routers and Switches. Racks shall be Chatsworth X03 or equivalent. Racks shall be arranged side by side, in a row, to facilitate routing of cabling between patch panels and the networking equipment. The quantity of racks shall be determined by quantity and type of patch panels and networking equipment required. The racks shall be ganged with 6 wide, double-sided, vertical management hardware placed between the racks and 3 vertical wire management at the outside ends of the row of racks. Racks shall be placed in a manner that will allow a minimum of 3-0 of clearance from the front and 5-0 clearance from rear mounting surfaces and 3-0 clearance on one side. If one mounting rail of the rack is placed against a wall, the mounting rail shall be no closer than 3 to the wall to allow room for vertical management. No swing-out racks will be permitted. 2. Power Distribution Provide a 100A 120/208V 3ø 4W - 24 circuit branch circuit panel located in the MDF room to feed equipment and racks. Panel shall be fed from the emergency panel to operate when the emergency generator, if provided, operates. Specifications will call out power distribution as required on a Project basis. Provide a minimum of two dedicated, 120 volt, 20 amp duplex electrical circuits for each data communication rack. Provide one vertical power strip for each freestanding rack. The power strip shall have a minimum of 20 outlets on two circuits, rated at 20 amps, and be mounted to the rear rail of the rack. Acceptable product is Chatsworth or approved equivalent. Duplex convenience outlets shall be placed at 6-0 intervals around the perimeter of the room at 18 above the finished floor. Building equipment rooms shall also contain two dedicated 20A circuits with dedicated ground for use by Service providers. 3. Plywood Backboard A minimum of two walls within the MDF shall be covered with 3/4" inch plywood backboards. Plywood shall be A/B grade and finished with two coats of white fire retardant paint, such as Benjamin-Moore M59. The backboard shall be 4-0 x 8-0 sheets, mounted vertically, and with the bottom of the plywood mounted 6" above the finished floor. 4. Through Wall Penetrations All horizontal penetrations into the MDF shall be accomplished using EZ Path System manufactured by Specified Technologies, Inc. or an approved equal system. This shall BSD Division 27: Communications and Technology Design Standards Revised: Page 10 of 25

11 be a re-enterable product that provides code compliant fire barrier protection without the use of caulk or putty. Quantities shall be determined by number of cables required and systems supported. Provide separate pathway for each system (i.e., security, intercom, clock, CATV). EZ Path or equal system shall enter in a corner of the ER or adjacent to a corner of the backboard. 5. Conduits Conduit that enter an MDF under slab shall extend 3 to 6 above the finished floor. Conduits that enter the MDF from overhead shall be routed to the cable tray. Conduits shall be bonded to the Data communication Main Grounding Bus Bar (TMGB) with a minimum of a #6 THHN green wire. 6. Ladder Tray A ladder tray shall be installed around the perimeter of an MDF at 86 above finished floor. The ladder tray shall support cables routed from the EZ Path or equal system and conduits to connecting hardware located in racks and wall mounted equipment and 110 fields. The ladder tray shall be sized to accommodate the quantity of cables required and shall comply with the current NEC and ANSI/TIA/EIA fill ratios. The ladder tray shall be a minimum of 12 wide. Ladder tray shall include a cable drop out accessory where cables exit tray. Ladder tray shall be extended to and firmly affixed upon the data communication racks and secured to the top of the racks using mounting plates and J-bolts in accordance with manufacturer s instructions. 7. Pathways D-ring pathways shall be provided on backboards for routing cabling to wall mounted 110 cross-connect fields and wall mounted equipment. 8. Jumper Trough A jumper trough for routing of cross-connect wires shall be installed between each 100- pair 110 wiring block and at the top and bottom of each column. D-rings shall be mounted between adjacent 110 columns to provide a vertical cable management channel for cross-connect wires. 9. Service Entrance For new construction Projects, a utility vault shall be place at the property line and two 4 schedule 40 PVC conduits shall be provided from the vault to the MDF for telephone service. One 2 schedule 40 PVC conduit shall be provided for the Cable TV service provider. The District shall verify with service providers their requirements for routing the service entrance conduits and communications vaults on the site. A minimum of 4-0 x 4-0 space shall be provided on the backboard for each of these service providers. All 90 bends must be no less than a 5-0 sweep and the total number of bends in a run shall not exceed 270. Runs in excess of 300 or with bends more that 270 shall have a pull box or vault installed. 10. Modular Service At each new school one additional 4 schedule 40 PVC conduit and two 2 schedule 40 PVC conduit will be provided between the MDF or IDF, which ever is closest, to a location where a future modular classroom(s) may be placed. 11. Grounding (ANSI Standard. See BSD Division 26: Electrical Design Standards for details) BSD Division 27: Communications and Technology Design Standards Revised: Page 11 of 25

12 In new construction, or substantial remodel, it is the responsibility of the Designer to specify a Data communications Bonding Backbone (TBB) that complies with the above referenced Standards. It is typically a 1/0 (or larger) bare stranded copper cable that is bonded to the Telecommunications Main Grounding Busbar (TMGB) at the Main Distribution Room and to a Telecommunications Grounding Busbar (TBB) at each of the IDF rooms. The initial component of this work is accomplished by the Electrical Contractor as part of the rough-in package with the actual grounding bars being installed as a part of the final trim-out. All racks, ladder tray, and conduit shall be grounded with #6 AWG copper conductor to the TMGB. 12. Sprinkler Heads Wet fire sprinkler systems shall have high heat (200 ) rated heads if required in the space. 13. MDF Work Space Work space shall have a Data outlet configured with a minimum of four RJ45 jacks. The MDF shall be equipped with a wall phone. 14. Floor-Mounted Server Cabinet Space shall be allocated in the MDF for computer server cabinets. Server cabinet shall be floor-mounted and shall require a 24 by 48 floor space and 48 front and 36 rear clearance for servicing the equipment. Two 20 amp electrical circuits shall be provided to this rack. 15. Lighting Lighting shall be a minimum of 50 foot-candles, (500 lumens) measured 3-0 above the finished floor. Placement of lighting shall be coordinated to avoid obstacles such as cable trays that obstruct light. 16. Doors Doors shall open out from Data/Equipment Rooms and shall be a minimum of 36" wide and 80" high, fitted with a lock which is keyed to the District Master or Building Master for Data communications rooms. Data communication rooms shall be secured from all users without an approved access need. Doors shall be located in hallways or other common areas. Exception allowed only for Modular classrooms with locking equipment cabinets. 17. Clearance Minimum clearance height within an Equipment Room shall be 8-6. False ceilings (e.g., t-bar ceilings, ceiling grids) shall not be installed in Equipment Rooms. 18. Finishes The floor, walls, and ceilings shall be sealed to reduce dust. Provide flooring materials with anti-static properties. Carpet is not acceptable for Equipment Rooms. 19. Environmental Control Environmental control systems shall be provided to the MDF on a 24 hours per day, 365 days per year basis to monitor and maintain acceptable temperature and humidity levels. The systems shall provide cooling to maintain a temperature range of 64 F to 78 F with 30% to 50% relative humidity. A positive pressure shall be maintained with a minimum of one air exchange per hour. At a minimum, the HVAC system must be capable of removing 7,000 BTU per hour from the MDF. BSD Division 27: Communications and Technology Design Standards Revised: Page 12 of 25

13 If a stand-alone air conditioning unit is used within an MDF, it may be wall mounted or hung from the ceiling. If hung from the ceiling the bottom of the unit must be a minimum of 8-6 above the finished floor. The air conditioning unit shall not be located over the telecommunication equipment. The air conditioning unit shall serve only the MDF and a thermostat to control the unit shall be located in the MDF. The mechanical condensate piping shall be located away from racks and equipment and shall drain outside the ER. The air conditioning unit shall be capable of and configured for automatic restart following a power failure. 20. Intermediate Data Distribution Room (IDF) In cases where horizontal cabling lengths exceed 90 meters, an Intermediate Data Distribution Room (IDF) is required. The IDF shall provide cross connect and interconnect facilities between horizontal cabling serving a portion of the facility and the backbone cabling to the MDF. The IDF shall be a dedicated space. The minimum size of an IDF shall be 8-0 x 6-0 to allow for the placement of one full-size telecommunication rack. If additional racks are required in an IDF to provide mounting space for the required hardware and equipment, then the IDF shall be sized to accommodate the racks necessary and provide 3-0 of clearance in front of, behind, and on one end of the racks. A minimum of two walls shall be covered with 3/4" inch plywood backboard, conforming to specifications described above. a. Data communication racks An IDF shall contain a 7-0 x 19 freestanding, aluminum telecommunications equipment rack for mounting patch panels, cable management, and networking equipment. Chatsworth X03 or equivalent. Three feet of clearance shall be maintained from the front and rear mounting surfaces and on one side of the rack. b. Wall mount racks/enclosures It may be difficult to meet the minimum space requirements for an IDF in renovations and retrofits to existing buildings. In those instances and in cases where a small number of horizontal cables are terminated in the IDF, the District may consider one of the wall or floor mounted enclosure options described below. A floor mounted enclosure may also be used when the capacity of a full size rack is required but the IDF is located in a non dedicated space such as a storage room, office or classroom. All IDF enclosures shall have lockable doors to prevent unauthorized access. 21. Data Communications Enclosure (Portable classrooms) A wall mounted Data Communications Enclosure (DE) shall be used when 48 or fewer horizontal cables are terminated. A DE shall have approximate exterior dimensions of 24 H x 24 W x 18 D. Cabling shall be routed into DE using surface mounted raceway or conduit sized to accommodate the quantity of cables required. Chatsworth or approved equivalent. Backbone cabling to a Data enclosure shall typically be a 6-strand 50/125 m laser optimized multimode fiber cable and a 100 ohm, Category 3, 25-pair UTP cable. In remodels and extensions to existing buildings, field verify the existing fiber optic cable that is installed, which generally is 62.5/125 mm fiber, and provide the same cable for transmission compatibility. The fiber shall terminate on a surface mount box mounted to the inside of the enclosure. The 25-pair UTP backbone cable will terminate on a 24-port rack mounted patch panel, one pair per port, with the 25 th pair left un-terminated. Patch panel shall be labeled Voice Supply. BSD Division 27: Communications and Technology Design Standards Revised: Page 13 of 25

14 Horizontal cabling in a DE shall terminate on 24-port Category 6 patch panel mounted on the hinged patch panel bracket. A dedicated 120 volt, 20 amp duplex power receptacle shall be mounted inside the DE. The DE shall be located to allow the door to swing fully open. There shall be a minimum of 3-0 clearance in front of the enclosure. 22. Telecommunication Vault A telecommunications vault shall be placed between the main building and the portable closest to the main building to facilitate cabling to existing and future portables on the campus. The vault shall have minimum dimensions 30 by 24 by 18. The vault shall contain multiple concentric knockouts on the sides and at the ends for the placement of conduits. Larger vaults shall be equipped with a sump of at least 6 in diameter and shall contain galvanized C channel racking for securing and managing the cabling routing through the vault. In cases where the vault is installed in the pavement and is subject to vehicle traffic, the vault shall be supplied with a traffic rated cover. A 15 service loop shall be provided for the backbone cabling routing through the vault. The service loop shall be secured to the C channel racking. IV. STRUCTURED CABLING, DATA OUTLETS A. STRUCTURED CABLING Installation of Raceways/Pathways for telecommunication distribution systems shall be in accordance with applicable portions of TIA-569-B. Horizontal cabling shall be routed from each Telecommunication Outlet to a TR using a combination of boxes, conduit, open cabling supports and cable tray. In new construction, cabling pathways shall be concealed in walls, casework, concrete slabs and above ceilings whenever possible. In renovations to existing spaces, the horizontal and backbone cabling may be routed in surface raceway when no other cost effective options exist. 1. Open Cabling Horizontal cabling may be routed using open cabling supports above accessible ceilings, crawl spaces, mechanical attics and similar spaces when cable tray is not available. Open cabling supports shall be installed parallel, or at right angles, to the building structure and shall be permanently anchored to building structure or substrates using beam clamps, drop wire or threaded rod hanger brackets. Open cabling supports shall be J-hook type cable supports with an open-top and wide base designed for supporting telecommunications cabling. J-hook supports shall be spaced no further than 4 apart and shall be sized in accordance with manufacturer s recommendations for quantity of cables supported. Fiber optic backbone cabling shall be installed with inner duct when routed using open cabling methods. 2. Conduits Conduit pathway shall be provided for horizontal and backbone cabling routed in inaccessible spaces including walls, floors, and ceilings. Under slab conduits are, by definition, a damp or wet location. As such, cables installed in under slab conduits shall be manufactured with jackets rated for damp or wet locations and employ proper moisture blocking techniques in construction. BSD Division 27: Communications and Technology Design Standards Revised: Page 14 of 25

15 Conduits to Telecommunication Outlets shall be a minimum of 1 diameter. Conduit pathways and sleeves shall be EMT conduit. All conduits shall have appropriate bushings installed on the ends prior to cabling being pulled. In case EMT conduit cannot be used, 1-1/4 flexible metallic conduit may be used. Nylon pull strings shall be provided in all conduit sleeves and pathways. Runs shall be less than in length and contain no more than two 90 bends. Conduit shall be sized to accommodate initial cable requirements plus a 50% expansion without exceeding then-current NEC fill ratio requirements. All conduits shall be supported independently of the ceiling support system. Provide EZ Path System or equal system for wall penetrations. EZ Path or equal system shall be provided where cabling passes through a fire-rated. Conduit sleeves that protrude through a floor shall terminate 3" to 6" above the surface of the floor. Backbone cabling shall be routed in separate conduits from horizontal cabling. 3. Cable Tray Large bundles of horizontal and backbone cabling installed outside of a TR shall be routed within a cable tray located in accessible ceilings above corridors and other spaces. Cable tray for distribution of cabling shall be a wire basket cable management system constructed of a continuous welded steel wire mesh with an electroplated zinc galvanized finish. A divider strip may be installed in the cable tray to provide separation between each of the telecommunication systems in the Project. The cable tray and partitions created by the divider strips shall be sized to maintain a 40% fill ratio for each of the cabling systems. Maximum depth of cabling shall be 6. Cable tray: Shall have minimum dimensions of 12 W x 4 D Shall not be installed through a rated wall, rather stopped on both sides and used in conjunction with EZ Path System or equal system to provide approved barrier and ease of re-entry Shall be properly grounded in accordance with NEC and ANSI-J-STD-607-A requirements Shall be supported with cantilever wall brackets, trapeze hangers, and center support hangers or other support systems approved by the manufacturer 4. Fire Stopping All penetrations through fire-rated building structures (walls and floors) shall be sealed with an appropriate fire stop system. This requirement applies to through penetrations (complete penetration) and membrane penetrations (through one side of a hollow fire rated structure). Label all firewall penetrations as indicated on the As-Built Drawings. Any penetrations created by or for the Contractor and left unused shall also be sealed as part of the Contractor s scope of work. EZ Path System or equal system shall be used in conjunction with cable trays to provide a re-enterable system allowing telecommunication cables to be easily removed or added in the future. BSD Division 27: Communications and Technology Design Standards Revised: Page 15 of 25

16 Fire stop systems shall be UL Classified to ASTM E814 (UL 1479). All fire stop systems shall be installed in accordance with the current NEC, NFPA 5000, and the manufacturer s recommendations and shall be accomplished in a manner acceptable to the local fire and building authorities having jurisdiction over this work. 5. Surface Mounted Raceway Surface mounted raceway (SMR) refers to a system used for routing telecommunication cabling to outlets on existing solid walls or walls with fire-blocking. Surface mounted raceways may be omitted where access into existing walls is available. SMR shall be Panduit TG-70 or approved equivalent. Horizontal SMR in lab environment shall be installed below the work surface height of computer tables. SMR shall be UL listed and approved for the intended applications by the local authorities having jurisdiction. SMR shall be sized to accommodate initial cable requirements plus a 50% expansion without exceeding then-current NEC fill ratio requirements. SMR shall be provided with all fittings including, but not limited to, mounting clips and straps, couplings, flat, bend limiting internal and external elbows, cover clips, bushings, device boxes, and other incidental and miscellaneous hardware required for a complete SMR system. Fittings/bends shall be sized to accommodate Category 6 and fiber optic bend radii as specified in TIA/EIA 568-B. SMR finish shall match, as close as possible, the finish of the wall it is to be mounted on. SMR shall not be installed through walls. SMR shall be securely supported using mechanical fasteners at intervals not exceeding 10-0 or in accordance with manufacturer s installation instructions. Telecommunication Outlets shall be surface mount outlet boxes compatible with the raceway specified. The surface mount outlet boxes shall be deep versions with a divider wall to maintain separation of power and data cables and allow for termination of both services in one outlet box. For larger raceways a device bracket shall be available for mounting of devices within the raceway. The path of the raceway shall be selected to minimize impact on existing molding, tack boards, and other architectural elements. Vertical runs of raceway from the ceiling to outlets shall be installed on walls near corners wherever possible. Raceway may be installed horizontally at the same height as the outlets or near to the ceiling. Entrance end fittings will be supplied at the ends of raceway runs to transition to conduit sleeves through walls, ceilings, or floors. SMR shall be installed parallel and perpendicular to surfaces or exposed structural members and follow surface contours where possible. Metal raceway, bases, covers and dividers shall be bonded and grounded in accordance with applicable code and ANSI-J-STD-607-A. E. DATA OUTLETS 1. Standard Data Outlets The Standard Data Outlet shall be housed in a recessed 2-5/8 deep x 4 square outlet box flush to the wall with single gang mud ring. A 1 conduit and pull string shall be installed from the outlet box to an accessible ceiling space. Appropriately rated bushings shall be installed on the end of the conduit stubbing into the accessible ceiling space. BSD Division 27: Communications and Technology Design Standards Revised: Page 16 of 25

17 In retrofit and remodel Projects where cabling cannot be routed within the wall, the outlet shall be surface mounted. Where the outlet is surface mounted, the cabling to the outlet shall be installed within a surface raceway. The size of the raceway shall be specified on a case by case basis, but at a minimum, the raceway shall have a 1 cross-sectional area. Product to match existing installed vendor s equipment. The standard faceplate shall be a vertical single gang frame manufactured from highimpact thermoplastic material. The faceplate shall be available in 2, 4, and 6 port configurations with recessed designation strips and clear plastic covers in accordance with the TIA/EIA-606-A labeling standard. Faceplates shall be mounted to recessed outlet boxes in the wall. Where surface raceway is used, the faceplate shall be mounted on a single gang surface mount boxes or within the raceway. All Data Outlets shall be labeled in accordance with BSD labeling standard for data drops. The labels shall be typed or machine-engraved. The label shall identify the Data Distribution Room, patch panel, and port number on the patch panel to which the horizontal cable terminates. Data outlet labels shall be installed into the recess label field on the faceplate and covered with a clear plastic cover. The current District labeling scheme is: Frame room number Panel in Frame Port on Panel MDF will always be Frame room 1. IDF 2 will be Frame room 2 and will continue sequentially for any additional IDFs. Panels will start with Panel 1 at the top on the Rack. If additional panels are needed in other racks, they will continue with sequential numbers. Port label will indicate port number position on that panel (i.e., F1-P2-26). No deviation from the district labeling scheme will be allowed. 2. Floor Box Outlet Where floor boxes are used (only if absolutely necessary), they shall be a multi-service metal style floor box providing separation allowing electrical power and Data Outlets to share a common box. The floor box shall be a recessed floor box flush with the finished floor. The floor box shall have a metal lid with a hinged hatch to allow power and telecommunication cords to be fed out of the floor box to devices with lid being closed. The floor box shall provide capacity for a duplex power receptacle and four Data Outlets. The floor box will provide the capability for telecom cords to be fed from the box with the lid closed to protect the jacks. Data Jacks must sit vertical within the box to protect from dust and debris. 3. Data-Power Pole Outlet A data-power pole is a floor-to-ceiling pole that provides a pathway for power and telecommunication cabling to serve outlets in open spaces. Data-power poles are an acceptable option in remodeling Projects when it is necessary to provide Data Outlets at a location away from the walls of an existing space and no other cost effective option is available. The use of data-power poles should be limited to those cases where it is absolutely necessary. Placement of data-power poles shall be coordinated with the District. Power and telecommunication cabling must be in separate channels. Add-on telecommunication covers shall be available to mount data outlet faceplates and devices. BSD Division 27: Communications and Technology Design Standards Revised: Page 17 of 25

18 4. Classrooms Data Outlets in classrooms shall be located to provide connectivity supporting instruction. The following are minimum specifications. Actual room distribution is determined by Project design. The teacher s desk will be typically located at the front of the classroom near the marker board on the instructional wall. The Data outlet at the teacher s location shall have two jacks. The number of jacks for student computers is recommended to be three wall locations with the standard data outlet having two Category 6 RJ45 jacks one white and one orange. A typical school classroom shall have a minimum of one standard Data outlet on three of the walls. A video outlet shall be provided for displaying video images from the instructor s computer onto a projection screen. See VIDEO PROJECTION SYSTEMS for details. Wireless Access Point outlets shall be placed throughout the school with a maximum of between each outlet. Specific high use areas requiring higher density coverage shall be indicated on Project drawings. 5. Offices and Administrative Spaces A typical office shall have two Data Outlets at each desk location. In larger offices that can support two workstations, provide three Data Outlets on interior walls. In the main office, provide Data Outlets at each of the workstation locations. There shall be additional Data Outlets in the main office to support network printers, fax machines, and copiers. Office work rooms shall have a minimum of three Data Outlets. 6. Special Purpose Spaces a. Computer labs Computer labs are expected to have a high concentration of computers. In a computer lab, there shall be approximately 40 student computer workstations and one presentation workstation location. Data Outlets (DO) in a computer lab may contain up to six jacks to support the high density of computer workstations. The quantity and arrangement of the DOs will depend on room size and dimensions. Please review design with the BSD representative. In new construction Projects, it may be advantageous to utilize floor boxes or wall raceways in computer labs to provide outlets for computer workstations. The Data Outlet for the instructor shall be directly on the teaching wall and one in the rear on the room. A video outlet shall be provided for displaying video images from the instructor s computer onto a projection screen. See VIDEO PROJECTION SYSTEMS for details. Furniture, lighting, projector, and outlet placement shall be arranged to enable all workstations to clearly see the projection screen. b. Science labs There shall be one Data Outlet at the demonstration table for use by the teacher. In addition, there may be a Data Outlet at each lab table based on design. Storage rooms connected to science labs will also receive a Data Outlet. BSD Division 27: Communications and Technology Design Standards Revised: Page 18 of 25

19 c. Library The library will contain Data Outlets at the circulation desk(s) and Data Outlets to support computers used for research and to access the automated card catalog. In elementary schools, there shall be a minimum of three Data Outlets to support student computers. In middle schools, there shall be six Data Outlets to support student computers. In high schools, there shall be eight Data Outlets to support student computers. The circulation desk at a school shall have three Data Outlets with six jacks to support computers, phones, and network printers at that location. If there is a separate office located in the library, this space shall have, at a minimum, two Data Outlets. A video outlet shall be provided for displaying video images from the instructor s computer onto a projection screen. See VIDEO PROJECTION SYSTEMS for details. d. Shops/vocational labs There shall be one Data Outlet for the teacher located on the instructional wall below and to the left or right of the marker board. There shall be a minimum of one Data Outlet on each of the other walls of the classroom. e. Gymnasium A Data Outlet shall be provided at each end of the gym. In addition, one Data Outlet will be placed near the center of the bleachers for connection to the scoreboard or scoring system. The exposed outlets shall be wall mounted with a wire guard to protect the outlet from damage. Gymnasiums shall also receive a wireless access point location. Placement will vary depending on construction. For Athletic Offices, see Offices and Administrative Spaces. f. Auditorium In an auditorium there shall be, at a minimum, one Data Outlet on the stage or platform. This shall be a duplex outlet either on the wall of the stage or in a flush floor box mounted in the stage floor. There shall also be a Data Outlet at the rear of the assembly area and one in the lighting/sound booth. Auditoriums shall also receive a wireless access point location. Placement will vary depending on construction. This space may be in the Multi-purpose space. A video outlet shall be provided for displaying video images from a media source onto a projection screen. See VIDEO PROJECTION SYSTEMS for details. g. Commons/cafeteria/multi-purpose rooms Commons, Cafeteria, or Multi-purpose Rooms shall have a Data Outlet supporting a Point of Sale (POS) application at the cash register location. In elementary schools, there shall be one POS location with two jacks. In middle schools, there shall be two POS locations with four jacks. In high schools, there shall be three POS locations with six jacks. The kitchen office shall have a Data Outlet with four jacks. Commons, Cafeteria, or Multi-purpose Rooms shall also have a wall mounted Data Outlet with four jacks. These areas shall also receive a wireless access point location. Placement will vary depending on construction. Quantity and location of Data Outlet will be defined by scope of work. A video outlet shall be provided for displaying video BSD Division 27: Communications and Technology Design Standards Revised: Page 19 of 25

20 images from a media source onto a projection screen. See VIDEO PROJECTION SYSTEMS for details. h. Elevator Elevator machine rooms shall have a wall mounted phone outlet. In addition, one horizontal cable shall be provided from the 110-voice cross-connect field in the MDF/IDF to the elevator machine room to provide telephone connectivity to the elevator cab. The cable shall have a minimum15-0 service loop and shall be coiled and remain un-terminated inside a junction box in the machine room. The final connection of the cable to the elevator cab shall be the responsibility of the Elevator Contractor. i. Art rooms One Data Outlet shall be located at the front of an Art room for the instructor. A minimum of three Data Outlets shall provide connectivity to the student computers. A video outlet shall be provided for displaying video images from a media source onto a projection screen. See VIDEO PROJECTION SYSTEMS for details. j. Music rooms One Data Outlet shall be located at the front of the Music room for the instructor. A minimum of two Data Outlets shall provide connectivity to the student computers. A video outlet shall be provided for displaying video images from a media source onto a projection screen. See VIDEO PROJECTION SYSTEMS for details. k. Custodial office The Custodial Office shall contain a Data Outlet. l. Mechanical/Electrical Rooms Mechanical and Electrical rooms shall have a wall phone outlet. Mechanical and Electrical rooms shall house other equipment such as lighting controllers, fire alarm, and/or security alarm systems that will require connection to the nearest Data Frame. Provide one cable for lighting controllers and two cables each for security and fire alarm as required. m. Conference rooms Conference rooms shall have a minimum of two Data Outlets with four jacks for connection of laptop computers and speaker phones. The Data Outlet shall be located on the wall below the marker board. Larger conference rooms shall also receive a wireless access point location. Placement will vary depending on construction. A video outlet may be provided for displaying video images from the presenters computer onto a projection screen in large conference rooms. See VIDEO PROJECTION SYSTEMS for details. n. Wireless access point (WAP) Locations (This specification shall be implemented when directed by BSD Representative) The design should be based on the coverage range for IEEE b/g and IEEE n WAPs. The WAP shall be located so that each Access Point covers an area with a radius of no more than One Category 6 UTP horizontal cable will be installed from the serving MDF or IDF to the WAP location to provide for interconnection to the wired infrastructure. The BSD Division 27: Communications and Technology Design Standards Revised: Page 20 of 25

21 horizontal cable shall be terminated on a Category 6 8-pin modular connector. The connector shall be mounted in a surface mount outlet box mounted adjacent to the Wireless Access Point location. A 10-0 service loop shall be coiled in the ceiling space above the WAP without exceeding the manufacturer s bend radius. o. Modular and portable classrooms Voice, intercom, video, and data connectivity shall be extended from the main building to all portables. The objective is to design the infrastructure such that the cabling can be easily disconnected and/or relocated when individual portables are added or relocated. V. VOICE COMMUNICATIONS VOIP VI. VIDEO (Future VOIP standards will be described here) A. VIDEO PROJECTION SYSTEMS Every classroom, other instructional space (e.g., gym, commons, auditorium), or areas designated by the BSD Representative shall have a ceiling or wall mounted LCD projector for displaying images from a computer, overhead projector, DVD, or other designated sources. Plans shall include a mount for the projector, power, data, and source connections as well as an appropriately sized screen, or interactive white board, or wall surface to project the image on. Architect/Designer shall engage the services of an audio visual consultant to assure proper design of the system. The system shall be easy to operate with simple switch selection of source and projector control without the use of remote controls. The system shall include an amplifier providing audio to speakers mounted adjacent to the projector mount. The system shall be comparable to the Crestron QuickMedia solution. Each projector location shall have an 110v power outlet and data outlet for projector management, as well as, input sources as defined: In each room with a projector, two video outlets shall be provided for inputting video images to the projector. The video outlets shall have connectors supporting Composite, S-video, SVGA and audio inputs, and projector control. There shall be an 110v power outlet adjacent to the video outlets. One video outlet shall be mounted on the instructional wall below and to the right the marker board and the second at the rear of the room both at 18 off the floor or as directed by the BSD Representative. Video cabling shall be installed from the outlets to an outlet on the ceiling within 12 of the mounted projector. Design and location of drops shall be reviewed by the BSD Representative. B. INTERACTIVE WHITE BOARDS When directed by the BSD Representative provide appropriate infrastructure to support wall mounted interactive white boards. This will include, but not be limited to, raceways for data cabling, USB extension solutions to tie the interactive white board into the video outlet outlined above, power if required, and wall backing. BSD Division 27: Communications and Technology Design Standards Revised: Page 21 of 25

22 C. IN-SCHOOL STUDIOS/BROADCAST (Future in-school TV studio and in-school TV broadcast system will be described here) D. CATV-TELEVISION DISTRIBUTION SYSTEM Provide for the distribution of CATV signals as supplied by the local cable franchise from the MDF room to all classrooms and staff work areas. 1. Head End All main distribution equipment shall be mounted in racks or on the plywood backboard in the MDF as called out in the Plywood Backboard section of this document. This termination will be completed at each new school. 2. Distribution (Complete as directed by the BSD Representative) Utilizing the signal provided by the local franchise, provide all necessary equipment to convert the signal to the desired format and level. Furnish and install, as appropriate, coax, data cable or fiber to each classroom, and staff work area. Comply with FCC regulations and conform to industry standards for broadband cable systems. Provide equipment capable of operating over the frequency range from 0 to 850 MHz as a minimum. Coaxial distribution systems will provide a signal level in the range of +5 dbm to +10 dbm with a maximum tilt of 5 dbm, at a minimum, carrier to noise ratio of +40 dbm to all room terminations. 3. Cables Coaxial cable connections between the MDF and the IDF shall be RG-11 quad shield, plenum rated cable such as Comscope 2287k or equal. Coax drops to each classroom or office area shall be RG-6 quad shield plenum rated cable such as Comscope 2227v or equal. All coax cable runs exterior to the building will be Comscope P3500 JCASS or equivalent. All other cables shall be plenum rated and of a type suitable for the transmission medium. No cable splicing is allowed. 4. Hardware a. Connectors All cables shall be terminated in an appropriate crimp connector. Hand applied push or twist connectors are not approved. VII. CLOCK SYSTEMS b. Splitters and Taps Rated for operation to 1GHz c. Wall-Plates Provide F-type barrel connectors suitable for installation in shared outlet with phone/data or stand-alone outlet. Provide 90 elbows as necessary to maintain minimum bend radius. Provide GPS transmitter clock system (72MHz local transmitter with external antenna Primex #14000-E) with quantity of local transmitters as recommended by manufacturer. Provide dedicated electrical circuits to feed transmitters. BSD Division 27: Communications and Technology Design Standards Revised: Page 22 of 25

23 Provide one 12 GPS satellite battery operated clock in each classroom and one 9 or 12 GPS satellite battery operated clock in each office space. Clocks in Gym or Cafeteria areas should be 16 or larger and, in gym or multi use areas, be covered with a protective cage. Utilize building communication system for class bell change function by providing a relay for connection to the PA system for time synchronization. Primex or approved equal. The approved Contractor must be a Certified Installer and be qualified to install and program the transmitter to operate with any required tone generator or external switching device connected to the Rauland paging equipment or other systems and provide the product s warranty. VIII. PAGING SYSTEM Furnish and install a complete and operable paging system. System shall include, but not be limited to: A. EXISTING SYSTEM Expand existing system with additional controller, amplifiers, upgraded console, and accessories as necessary to support new speakers in each classroom and any other occupied room, covered play area, front door plus 20% spare capacity. B. NEW SYSTEM Provide a new paging system including controller, amplifiers, console, and accessories as necessary to support speakers shown on Drawings for one-way paging with hands-free talkback function plus 20% spare capacity. C. SYSTEM CAPABILITIES System shall be able to provide the following functions: At least eight separate, individually programmable time schedules Individual events of each schedule shall be capable of sounding nine distinct user defined tones Allow schedules to run individually or simultaneously Two priority levels of all-call capability Provide integral internal program clock for time-tone distribution and other time related functions Allow for the program clock to be synchronized from the external master clock system utilized for the school Interface to the telephone system for general paging from any telephone instrument D. INSTALLATION All paging equipment shall be mounted in a manner that allows easy access for maintenance without using ladders. Rack mount units shall maintain a clearance between the equipment above and below at least 3 to allow for cable routing while testing and maintenance. Desk mount units, when installed in the MDF room, shall have a wall mount shelf firmly affixed to the wall and capable of supporting at least 300 lbs. The shelf shall not be less than 3 and not higher than 5 measured from the floor. The shelf surface area shall be at least 24 by 24. Cables attached to the paging and audio equipment shall be of a length as BSD Division 27: Communications and Technology Design Standards Revised: Page 23 of 25

24 to allow for rotating the cabinets a full 180 for maintenance. A minimum distance of 36 shall be maintained from the front of the shelf to any other equipment. Paging equipment shall not be installed in office space or teacher workrooms without approval of the BSD Representative. All speakers shall be individually connected (home run) and terminate on a split 66 block (see Figure 1. Paging Punchdown Block for details) at the same location as the telephone switch. Bridging clips will be used to connect paging equipment to individual speaker lines. No other connection method will be approved. Figure 1. Paging Punchdown Block 1. Submittals Provide data sheets on equipment being provided, wiring diagrams showing typical field wiring connections, and system field wiring diagrams showing proposed zoning and routing of speaker cabling. 2. Qualifications Minimum five years documented experience in the Portland Metro area and with service facilities within 100 miles of Project. Staff includes at least one factory-trained technician certified by manufacturer of this equipment. 3. Warranty Provide guarantee of installed system against defects in material and workmanship, including cost of corrective labor and materials at no expense to the BSD Representative, for duration of one year from date of acceptance by the BSD Representative. 4. Shop Drawings Provide shop drawings showing any changes to wiring, as well as wiring designations, junction box labeling. BSD Division 27: Communications and Technology Design Standards Revised: Page 24 of 25