--- title: "Classroom Technology Build Standards" canonical: "https://tech.calpoly.edu/space/CPKB/107184167/Classroom%20Technology%20Build%20Standards" format: markdown --- ## Classroom Technology Standards The Classroom Technology standards document represents the latest standards for University Scheduled Classrooms on campus. This document is meant to be handed off to Facilities project managers, building architects, contractors, and stakeholders looking for campus standards, processes, and ideal room setups conducive to a great classroom experience for all users of the space (presenters, students, and technical/custodial support staff), with emphasis on the learning experience. > ✅ **Resources** > ✅ > ✅ - [Room Use Survey (PDF)](https://calpoly.atlassian.net/wiki/download/attachments/17891452/ITS_Room_Use_Survey.pdf?version=1&modificationDate=1564162802990&cacheVersion=1&api=v2) - Fill out this survey and answer questions to determine your needs and help us make the best recommendations for you. > ✅ - [ITS Technology Design and Installation Memo of Understanding (PDF)](https://calpoly.atlassian.net/wiki/download/attachments/17891452/Project_MOU_2019.pdf?version=1&modificationDate=1582209170701&cacheVersion=1&api=v2) - An agreement between ITS and your department regarding the estimation, design, and installation of technology in your facility. > ✅ - [https://calpoly.atlassian.net/wiki/spaces/CPKB/pages/2836660258](https://calpoly.atlassian.net/wiki/spaces/CPKB/pages/2836660258) ## CSI MasterFormat ### Construction Standards Reference Section - [Division 27 - Communications](https://calpoly.atlassian.net/wiki/spaces/CPKB/pages/18120705) - 27 41 16.51 - Integrated Audio Video Systems and Equipment for Classrooms
Related CSU and Campus Specifications ### Telecommunications Infrastructure Planning (TIP) Standards This document provides the minimum standards governing the development of technology resources and infrastructure across the CSU system. ### Cal Poly ITS Telecommunications Standards This document provides the minimum standards governing the development of technology resources and infrastructure at Cal Poly, building upon TIP and applying to the specific needs of the campus. ### Cal Poly ITS Classroom Technology Standards This document provides the minimum standards governing the development of technology resources and infrastructure at Cal Poly, building upon TIP & Cal Poly Telecommunication Standards and applying to the specific needs of the campus. Visit the [Telecommunications](https://calpoly.atlassian.net/wiki/spaces/CPKB/pages/18120705) page for more information.
1.01 Design Elements and Considerations Learning spaces should be designed from the “inside-out,” such that the function and the purpose of the classroom are the number one priority of design, not building mechanical systems. Refer to **Room Design Considerations **below.  1. Learning spaces should incorporate capabilities to support flexibility of use; furniture, function, collaboration, and technology.  Increased square footage allotted for students increases the degree for classroom flexibility. 2. Classroom design elements should be inviting to students; breaking away from an “institutional” feel that has dominated classroom design for decades.  The classroom may be configurable such that any wall could be a presentation area. 3. Learning spaces may incorporate formal and informal learning areas such as meeting spaces, seminar spaces, lecture spaces, conference rooms, and traditional classrooms. 4. Audio-Visual System design and installation contractors shall have a minimum of 1 AVIXA CTS-D certified member and a CTS-I certified member. 5. Audio–Visual System infrastructure and components should be reflected in dedicated page(s) in architectural plans, including elevations and mounting details. 6. Audio–Visual System infrastructure and components should be reflected in Electrical, Telecomm, and Mechanical architectural plans. 7. All architectural plans that involve learning spaces or audio-visual technology elements shall be commented on during the design phase and approved by Cal Poly ITS Operations representative and classroom designer to ensure conformity to university standards and functionality needs. 8. Note viewing angles and screen dimensions on construction documents. 9. Finished ceiling height should be a minimum of 10’ above finished floor in instructional spaces. 10. Student seating areas should fall within the basic decision-making model range (Powerpoint viewing) based on AVIXA’s V202.01:2016 Standard for Display Image Size for 2D Content in Audiovisual systems 11. Screen heights should observe a maximum 30-degree vertical angle between the horizontal line at eye level and the top of the image to minimize extended viewing neck strain. (Typically bottom of display image should be no lower than four feet AFF.) Refer to AVIXA’s V202.01:2016 Standard for Display Image Size for 2D Content. 12. Image size must be based on the Basic Decision Making model in AVIXA’s V202.01:2016 standard with compensation made for ceiling heights by introducing additional displays to ensure minimum visual strain to students. Use of older rule-of-thumb guidelines must not be used, such as the 4-6-8 rule. 13. The closest student seats to the presentation display screen should be based on Basic Decision Making (BDM) model in AVIXA’s V202.01:2016 standard with compensation and allowance made for CSU or Cal Poly Scheduling seating density requirements. 14. Student’s ability to access power for mobile devices should be incorporated into classroom designs.  Typically place electrical outlets around the classroom perimeter every 5 feet or as necessary to allow for 30% utilization.  All outlets must be within ADA guidelines for reach (i.e. 18" AFF). 15. Classroom lighting should be recessed for rooms with a drop tile ceiling and not incorporate any hanging fixtures. 16. Classroom lighting should be grouped into lighting zones with controls near the instructor area that allow the instructor to turn on/off lighting within the zones. 17. Classroom lighting systems must provide an interface and API to connect to the classroom AV control system 18. Classroom lighting scenes and presets based on zones must be created, and that type of information must be documented as part of the classroom configuration documentation 19. Classrooms specifically designated for distance learning must follow IES/AVIXA RP-38-17 video conferencing lighting standard 20. If there are wall-mounted projectable whiteboards, the same wall should have a dark color to improve the contrast of the projected image.  If it is used in a distance learning scenario with a remote presenter, the wall behind the students should also be a neutral to darker color. 21. Learning spaces should be free of any structural elements (posts, beams, pillars, hanging lights, walls, room angles, etc…) that hinder the sightlines of students. 22. Learning spaces should incorporate generous amounts of usable whiteboard surfaces.  A minimum of 10’ of linear whiteboard space on the same horizontal plane should be available for usage while projected images are in use. 23. Audio–Visual system design and components shall be approved by a Cal Poly ITS Operations representative, typically the Classroom AV engineer; incorporating approved “standard” equipment elements, incorporate robust wireless networking, sufficient to incorporate the increasing demand of mobile. 24. If a Classroom Audio-Visual system must be designed in a way that does not meet the current Cal Poly ITS Classroom standard, the reason for the deviation must be clearly documented and must receive ITS approval before any purchases are made. 25. Audio–Visual Contractor submittals shall include: Parts list, shop drawings including rack layout diagrams, cable lists, and line-diagrams, post-project as-built drawings, equipment specification sheets, and warranty information. 26. All Audio–Visual cables and connections shall be labeled at both ends of the cable following the AVIXA F501.01:2015 standard.  Cal Poly utilizes two lines for cable labels, a Cable ID, and a Cable source to destination description. 27. Classroom design should seek to incorporate energy-saving “green” audiovisual features based on AVIXA’s ANSI 4:2012 Audiovisual Systems Energy management standard as well as “green” cradle-to-cradle construction elements. 28. Classroom design must follow environmental guidelines for lighting levels; ambient noise levels—both HVAC and ingress; acoustic treatment. Refer to the section below: *Acoustics and Environment*. 29. When planning for AV in new buildings, especially ones that include university scheduled classrooms, an Architect and AV consultant must coordinate with the ITS standards document and AV designer and include ITS in all early budgetary discussions, programming phase charrettes and planning, and post-programming drawing reviews of construction drawing sets. 30. Final Audio-Visual equipment selection and system design shall be coordinated with campus representatives.  Due to the rapidly changing technology horizon; standardized equipment and system design selections should be made as close to building commissioning as possible to ensure the most up-to-date technology is available. 31. It is required to acoustically treat rooms to optimize STI (sound transmission index) to prevent transmission of both the vocal frequency range between rooms and low frequencies). New build out of classrooms requires walls built up to the deck, staggered studs between gypsum boards, and acoustic sound batting between gypsum board.  Rubber baseboard molding needs to be acoustically rated along with any glue used. Ceiling tiles must be acoustically rated as well, and we recommend  the use of reclaimed denim insulation  to improve  noise reduction coefficient rating. 32. Any conflicting standards presented, the more stringent standard must be used or referred to the AHJ (authority-having-jurisdiction)
1.02 Infrastructure Elements ### A. Media Junction Box   #### Intent Centralized landing zone for all wiring, power, and connections required between a presenter's station and the wall which will be serviced by the campus data network, building AC power, data ports designated for audio-visual content and control transport, disconnect point for any ceiling speakers, and general disconnect point for any additional cabling needed to go out to the rest of the room and any AV rack(s).   #### Specifications Media Junction Box shall be wall recessed, flush with finished wall or finished floor. A typical size is 14” x  24” x  4”. The media box should be designed to fit between studs in the wall. Media box shall have a screw or locking cover door with flush locks and cable entry access to connection panels. Media Box shall be white or painted to match wall color. Media box shall contain AC power, networking, and media connection faceplates.  High voltA. age dividers must be used to separate AC power from low voltage signal areas. Media box shall have a minimum of (1) - 2” or (2) - 1.25” ‘home run conduits’ from the media box to the plenum  pull-box continuing 1.25” conduit to  display location as appropriate. Media box shall have a minimum of one (1) 1.25” conduit ‘home run’ to the nearest network cable tray.     #### Specified Product(s) Legrand EN2850 or Approved Equal   #### Additional Details Media box shall be serviced with: electrical, network, & Audio, Video and Control low-voltage connectivity (typical). Refer to **Appendix** for layout details. Refer to **Installation Cable **section below for cable details. Slanted-style Keystone faceplates are desired to mitigate bends in CAT6 a cables.   1. Electrical   - 120  VAC, 20A [dedicated] service, 2 outlets 2. Network Data, Video, Power-Over-Ethernet (POE IEEE 802.3bt)   - CAT6 UTP (Data) - Shielded CAT6a (Video) HDBT certified. - Keystone RJ45 jacks must be shielded. 3. Audio and Control   - Loudspeaker: Two or four-conductor, 16 AWG  STP, plenum - One pair Keystone banana jacks termination for every 8-Ohm loudspeaker - One pair Keystone banana jacks termination for 70-Volt loudspeaker distribution - Shielded, twisted pair (STP): Single pair, 22 AWG stranded, shielded, plenum 4.  Voice - CAT6 UTP for VoIP applications --- ### B. Wall Chase #### Intent In the event that the Media Junction Box and associated conduit cannot be installed recessed  within the wall depth, an alternative floor-to-ceiling solution can be used. This has the same purpose as the Media junction box, to be a cable landing zone for classroom and building services related to technology components    #### Specifications A framed chase should be constructed to enclose the Junction Box/conduit from floor to ceiling and painted to match the adjacent wall. This is a large, square chase in anodized aluminum with a furniture feed, device cover plate with three mini-adapter openings, and access door (latching, no locks). See **Media Junction Box Detail** below for illustration.   #### Specified Product The Legrand Vista Architectural Column  VFL77 2345CM GY D, or Approved Equal.   #### Media Junction Box Detail ![Detail of media junction box](media://05cbd56c-8f3b-41a6-b4fb-eba4d8b974b8) --- ### C. AV Break-Out-Box (BOB) Junction Box #### Intent The BOB Junction box is meant to house a 2-Gang HDBaseT transmitter that can be used to facilitate a hardwired connection for a digital video cable (HDMI) from the outside, and be connected via a single CAT6A junction on the inside of the junction box. This is a surface mounted box for environments where a recessed box is not feasible. #### Specification The ‘BOB’ junction box shall be a surface mounted 2- gang, 4 3/4" (121mm) x 4 3/4" (121mm) x 2 3/4" (57mm) deep box with a 1-¼” conduit pathway ‘home run’ to the media junction box. It should be co-located near user data and electrical outlets. All BOB connections are low-voltage. The junction box will house the wall plate/interface (an HDBT transmitter)   #### Specified Product Wiremold Part# V5744-2 in Ivory or Approved Equal   #### Additional Connectivity/Cabling Requirements - Shielded, CAT 6 cabling (HDBT-certified) terminated with shielded, female RJ-45 key stone jacks. - STP cable, single pair, unterminated --- ### D. Floorbox #### Intent Floorboxes are typically used to provide AC outlets, AV connections, and LAN connections to a podium or table. Multiple floorboxes in a room can be used to enable relocating the instructor station or in active learning scenarios, infrastructure connection points for group tables/pods. #### Specifications Floor box shall be suitable for raised concrete floor applications. The floor box shall contain minimum for (4) 1-1/4” knockouts and have serviceable gang- sized mount plates with dividable sections for power data and audio-visual connections. Hinged cover plate should allow for attached cables to exit without damage.   #### Specified Product FSR Part# FL-500 series or Approved Equal; Cover panel t.b.d.   --- ### E. Over-the-floor Cable Raceway #### Intent Raceway is used for any cable(s) that needs to run openly between a wall and across an unobstructed the floor for more than 12 inches to a mobile display, podium, or table. #### Specifications Raceway must meet ADA ramp guidelines and all building codes.  Must be suitable for installation in any floor type. AV, Power, and Data should run through separate channels in raceway. Cables in raceway must be easily accessible via a removable cover #### Specified Product ConnectTrack 2.7 On Floor Wireway or Approved Equal --- ### F.  Ceiling Equipment Storage Box #### Intent Ceiling box is used to discreetly place equipment in ceiling, typically above where a display is mounted.  Equipment stored in the box could include an audio amplifier or an HDBaseT receiver. #### Specifications Ceiling junction box shall be plenum-rated false ceiling equipment storage. Projector ceiling box shall fit in “T-Bar” type 2’x2’ or 2’x4’ drop ceiling grids or similar cutouts in hard lid applications. Projector ceiling box shall contain a minimum of 4 electrical outlets, one exposed on ceiling surface specifically for the projector.  Projection Box shall contain fully terminated Media Connection Faceplate from Media Connection Box. Projector ceiling box shall contain 2 rack units of space inside enclosure with optional exhaust fan and have locking door accessible from below finished ceiling. Projector ceiling box shall provide 1.5” NPT threaded fitting to allow for mounting a projector. Ceiling Box shall have adequate seismic safety cabling and shall be anchored to the ceiling top deck, minimum of 4 anchor points. All mounts shall be installed according to manufacturer’s specifications and campus guidelines .   #### Specified Product Premier Mounts Part# GB-AVSTOR3/GB-AVSTOR5 or Approved Equal --- ### G.  Display Ceiling Mount for Ceiling Tile Replacement #### Intent Projector ceiling mount attachment that drops into ceiling tile grid is used in situations were mounting directly to the deck is problematic.  Will still need to be tethered to structural supports. #### Specifications Projector ceiling mount shall be plenum-rated, full-tile false ceiling adapter with quick-lock cables which replaces a  24 inch  (610 mm) x 24 inch (610 mm) ceiling tile. Mount shall feature two or more electrical and cable knockouts for running power or signal. Accepts a  1.5 inch  (38 mm) NPT pipe and uses wingnuts for rapid projector adjustments. The mount also has the ability to shift the display or projector by 4 inches (102 mm) in any direction. All mounts shall be installed according to manufacturer’s specifications and campus guidelines .   All mounts shall have  adequate seismic anchors and a minimum of 4 anchor points.   #### Specified Product Premier Part# PP-FCMA-QL/GB-AVSTOR 5 or Approved Equal --- ### H. TV Box #### Intent To efficiently manage cables behind a wall-mounted display for appropriate wall types. #### Specifications - TV Box shall install in-between 2 standard wall studs in wall cavity flush to finished wall. - TV Box shall contain 2 low voltage back boxes and 2 UL listed Gem boxes. - Box shall contain one (1) 120 VAC duplex outlet, 2 CAT6 network drops [home run to cable tray, 1-1/4” conduit]. - TV Box shall contain 1-1/4” conduit to AV pull box (ceiling above TV) and 1-1/4” conduit to 3 gang double deep box at 10” A.F.F. (below TV); for conference rooms, AV pathway shall continue to conference table location. - TV Box Shall contain mounting for AV connection modules. #### Specified Product FSR Part# PWB-100 or Approved Equal ![TV Box](media://c0e07ef9-3243-47ac-8d4c-601da15d8ec1) --- ### I. Loudspeaker Back Box #### Specifications Speaker back box shall contain seismic wire safety connection, ¾” conduit connections with whip and sufficient speaker cable to allow for installation and servicing. In most cases, the back box is an integral part of the specified ceiling loudspeaker. #### Specified Product JB L Part# Control-26C; Extron Part# CS120P, SM26, or Approved Equal --- ### J. EMT Conduit 1. Requirements 1. All conduits shall be continuously bonded back to the TGBB (telecommunication grounding bus bar) in the TR/ER (telecommunication room/electrical room). 2. All Audio/Visual Conduits must be (1) 2” or (2) 1-¼ ” between Media Connection box and above ceiling junction box. minimum (1) 1-¼" conduit to each display location. 3. Audio/Visual Conduits used only for two pair of two-conductor 14AWG speaker wiring can be 1" in diameter. 4. All conduit terminations will be equipped with bushings. 5. All conduits shall contain a pull string. 6. Conduits run for horizontal cabling shall not be installed below a building’s slab; however, they may be installed within the slab. 7. The maximum allowable pulling force on a 4-pair cable or bundle of cables is 25 lbs. Over-filled conduit, long conduit runs and bends increase the pulling force required to pull the cable. 2. Conduit Bends 1. There should be no more than two 90-degree bends (or combination of bends equaling 180 degrees) between pull boxes or pull points. 2. For reverse bends (between 100 and 180 degrees) insert a pull box at each bend. 3. The recommended 90-degree bend radius for conduit is 6 times the internal diameter of the conduit; 10 times the internal diameter if the conduit is larger than 2 inches. 4. Conduit runs should contain no continuous sections longer than 100 ft. without a pull box. 5. All firewall penetrations will be sleeved and fire-stopped. 3. Pull Boxes 1. Pull boxes shall not be used in lieu of a 90-degree bend, and conduits should be aligned such that pulls are straight through with no jogs. 2. Pull boxes should be located such that conduit runs do not exceed 100 feet. 3. Minimum size for pull boxes; length should be 8x diameter of the largest entering conduit; width should be 4x the diameter of the largest entering conduit. 4. If the pull box will require a faceplate with an integrated CAT6 connector, the box depth must allow for an internal cable radius; typically, a 4-11/16” deep box with a 1-1/4” conduit pathway and preferably using a side cable entry. 5. Where possible, 6-ft. cable service loop(s) should be secured with Velcro-type fasteners above the projector ceiling plate. Zip-ties should never be used on Category cable. --- ### K. Projection Screens   #### **Motorized** screens Projection Screen wider than 7 feet shall be motorized. #### Specifications - Projection screen fabric shall have a matte white projection surface (1.0 gain) with black borders if audience falls within viewing angle of screen. - If audience falls within the narrower band a gray "HD" screen (1.2 or 0.8 gain) may be used for the projection screen fabric with black borders. - Motorized Screen stop point shall be four feet about finished floor in most situations, exceptions must be reviewed with ITS AV designer and/or client(s). - Screen shall not cover any building system sensors, clocks, or fire alarm flashers. - Recessed screen housing should be separate from any ceiling gird system, allowing for replacement and servicing of screen without damaging ceiling materials. Seismic cables are required , minimum of 4 anchor points. - Screen location must take into account viewing angles, the closest and furthest viewer, and minimize coverage of whiteboards. Refer to **Appendix.  ** - Screen control shall below voltage switch and be mounted close to the user area. - Screens must be installed according to manufacturer’s specifications and campus standards. #### Specified Product Da-lite Cosmopolitan Electrol or Approved Equal   #### Manual Screens - Manual projection screens over seven feet in width shall not be used. - Projection screen shall have a matte white projection surface with black borders. Screen stop point shall be four feet about finished floor. Screen shall have slow retraction mechanism. Screen shall not cover any building system sensors, clocks, or fire alarm flashers. - Recessed screen housing should  be separate from any ceiling grid system, allowing for replacement and servicing of screen without damaging ceiling materials. - Wall-mounted screens should use a wall mounting board, 1” thick and 8” longer than the screen case dimension, with appropriate and rated mounting brackets. - Screen location must take into account viewing angles, the closest and furthest viewer, and minimize coverage of whiteboards. Refer to Appendix. - Screens must be installed according to manufacturer’s specifications and campus standards. - Any S-clip style mounting components must have a closing mechanism to prevent projector screen from jumping off of bracket. #### Specified Product Da-lite Advantage Model-C CSR or Approved Equal
1.03 Installation Practices and Cabling ### Compliance Comply with the following Codes and Industry Standards  1. American National Standards Institute (ANSI). 2. Electronics Industry Association (EIA). 3. Audio Engineering Society (AES). 4. National Electrical Code (NEC). 5. National Fire Protection Association (NFPA). 6. UL Compliance: Comply with requirements of UL 50. 7. California Building Code 2010 8. California Fire Code 2010 9. Building Industry Consulting Service International (BICSI) 10. Audiovisual and Integrated Experience Association (AVXIA) 11. Cal State Telecommunication and Infrastructure Performance standards (TIP) 12. Any other additional codes or regulations as identified by the AHJ ### Installation Practices - Dedicated EMT conduit shall be installed when possible. In the situation where dedicated conduit runs are not viable ,  non-contiguous cable support mechanisms may be used.  Non-contiguous cable support mechanisms such as hangers, rings, and hooks shall not be   spaced farther than four (4) feet apart. All manufactured raceways used for cables shall be installed according to the raceway manufacturer’s specifications. - All above-tile plenum cables cannot lay against the ceiling tile and must be supported with dedicated hanging wire(s) and J-hooks. - Cable runs shall be supported with devices  such as J-hooks designed for this purpose, and are to be installed independent of any other structural component. - Cables routed vertically up walls, or between floors as vertical riser, shall be supported with clamps or other mechanisms. These supports shall occur at least three times per floor. - Cable stapling of any recognized media type shall not be permitted. - Cables shall be dressed in conveniently sized bundles and either laced or banded. Lacing   or banding shall not be so tight as to deform cable bundles. - Cabling installed with a bend radius less than that recommended by the cabling manufacturer is not acceptable. - Cables and bundles terminating at equipment or connector panels shall be supported so as not to put strain on connections or connectors. - All bulk cables  shall be cut to the length dictated by the run. No splices shall be permitted in any pull   boxes without prior approval of the Owner. - Cabling for equipment mounted in drawers or on slides shall be provided with a service loop   of appropriate length. A cable management support for the service loop shall be provided to   prevent the service loop travel from interfering with the operation of the drawer or slide, or   snagging on adjacent cabling. - Wherever possible, m microphone level, line  level, loudspeaker level  and  data cables  shall  each  be run in separate   conduits, trough, raceway divider, and cable bundles. Low voltage DC and control may be   run along with any but microphone or line-level runs. ### Termination - All termination components must meet or exceed all specifications for given media type and application as described in this document and system drawings.  Cable service loops shall be provided. - Crimp-on connectors shall be installed only on the appropriate size cable using the manufacturer-recommended crimp tool and die set. - Connections to electronic devices providing screw terminals shall be terminated using the appropriate gauge insulated spade or ring crimp terminal connector and crimp tool. - All mechanical solder-on connectors shall be attached to cable ends using rosin core solder. - Audio signal cable shields shall be protected with the appropriate gauge Teflon or heat-shrinkable tubing. The jacket end of each audio cable shall be fitted with the appropriate gauge heat shrinkable tubing to provide additional protection to the base of the shield or shield foil. This also applies to the inside of mechanical connectors and cables that terminate at partitioned barrier strips. ### Labeling - All cables shall be permanently identified at each end by machine-printed cable markers. - Every cable shall have a unique tag number identifier for each cable. The Contractor shall include this unique tag number on the As-Built signal flow documentation. - Cable markers shall be placed two (2) inches from where the cable exits the strain relief of the connector, but never within a cable bundle. - Cable labeling followings the AVIXA Standard, Cable Labeling for Audiovisual Systems, AVIXAF501.01:2015 - Each cable marker shall include, in addition to the unique tag number identifier, the name of the origination and destination equipment termination at each cable end. #### Specified Product Impact Inc, Advanced Wire Marking System, LSL-78 or equivalent - Example of Existing Labelling - Updated Labeling to Match AVIXA Standards --- ## Video Cable (Bulk) ### CAT6A #### Specifications Cable for video should be HDB aseT (HDBT) certified CAT6 a , s solid conductor, 23  AWG, 4-pair, shielded, 625-MHz. Plenum-rated. Color: green, else black.  #### Specified Product Infinity Cable ABA TSP2304503, ICE CAT6 a  Plenum Shielded, or Approved Equal   ### CAT6A Connector #### Specifications CAT6A cables shall be terminated with shielded, modular keystone jacks  ( Hubbell  style) . #### Specified Product Hubbell PART# SJ6A or Approved Equal ### Coaxial (single)   #### Specifications Cable should be RG59/U, Plenum-rated, white.   #### Specified Product ICE RG-59 HDTV Plenum --- ## Video Cables (Patch) ### HDMI User Cable #### Specifications - HDMI Patch Cable should be  at minimum HDMI 2.0 verified, 18 Gbps, CL3P certified, shielded, 24awg, gold plated connectors. - 6 to 15 feet in length - Flexible PVC cable #### Specified Product Extron HDMI Ultra Series (length TBD) or Approved Equal ### HDMI Patch Cable #### Specifications - HDMI Patch  Cable should be  at minimum   HDMI  2.0  verified , 1 8  Gbps, CL3P certified, shielded, 24awg, gold plated connectors. - Color: green, if available. #### Specified Product Comprehensive MICROFLEX Pro AV/IT Series High Speed HDMI 24 AWG with ProGrip, SureLength, CL2P Cable or Approved Equal, length TBD ### Shielded CAT6 a  (Video- HDBT) #### Specifications Shielded CAT6 a, Solid conductor, 24 AWG, 4-pair,  475-MHz. Terminated with shielded RJ-45 plugs. #### Specified Product Extron XTP DTP 24/n (length TBD) or Approved Equal --- ## Audio & Control Cable (Bulk) ### Loudspeaker cable  #### Specifications Loudspeaker Cable is jacketed 16 AWG  or 14 AWG, depending on amplifier wattage and cable length; shielded, and plenum-rated with overall jacket.   #### Specified Product Belden Part# 6200UE; West Penn Part# 25225B or Approved Equal   ### Control & Audio Wire   #### Specifications Cable is 22 AWG, shielded, twisted-pair, stranded, plenum-rated   #### Specified Product Belden Part# 9451P or Approved Equal --- ## Data Communication Cable ### Bulk cable   #### Specifications Data communication cable shall be Plenum-rated CAT6, 23awg, 4  Pr, Solid, 550mhz (w/spine), HDBaseT Certified, color blue.   #### Specified Product Infinity Cable ABA TSP 2304503 or Approved Equal   ### Data Patch Cables   #### **Specifications** Data patch cables shall be 23awg, 4 Pair, Stranded, Color blue with RJ45 connectors.    Length TBD #### Specified** Product** TBD
1.04 Audio-Visual Components - Final Audio-Visual equipment selection and system design shall be coordinated with campus representative. - Due to the rapidly changing technology horizon, standardized equipment and system design selections should be made as close to building commissioning as possible to ensure the most up-to-date technology is available. ## Displays ### LCD Projector   #### Specifications - Projector shall be a minimum of WUXGA (1920x1200) resolution, have an output of a minimum of  60 00 lumens and  2,500,000 000:1 contrast ratio. - Projector must have horizontal and vertical lens shift capabilities and security  mount provision . - Projector shall use laser light source, rated to 20,000 hours. - Projector shall be networkable with message broadcasting capabilities and closed captioning. - Projector must offer at least two digital inputs (HDMI/DVI) ,  HDbaseT , and  at least one of each of the following  inputs: VGA, Composite Video, RS-232, RJ -45, WI - FI and USB. - Projector shall be equipped with Lens appropriate with mounting distance and screen size. - Projector shall be accompanied with appropriate accessories as needed:  optional Wi-Fi adapter, extended warranty, & at least one spare lamp per projector. #### Specified Product EPSON Brand Laser Projector: L610U, L1100U/L1407U or Approved Equal [including part #’s V11H901020, V12H418P12 (WIFI adapter), and EPPEXPB2 (5 year  warranty). ### LCD Display   #### Specifications - OLED/LCD /LED/QLED TV shall have VESA mounting - Closed Captioning - Internal amplified speakers - Energy Star rated. - The display shall have the following inputs: VGA, HDMI, RS - 232, Ethernet, USB, PC Audio. - The display shall have analog and digital audio outputs. - Native resolution shall be 1920x1080  or greater  with a minimum of 120Hz refresh rate. - If available, opt for a white bezel/frame #### Specified Product - Samsung Brand Display: Part#  UN( xx) RU7100 series  or Approved Equal - Size of display must be equal to or greater than the AVIXA 2-D Display standards using 3% Element Height at the maximum distance in the Basic Decision Making model - Multiple displays may compensate for use of a smaller display, but it must follow the same AVIXA 2-D display standards @ 3% element height. #### Projector Mounting Hardware - All mounts shall be installed according to manufacturer’s specifications and campus guidelines . - All mounts shall be seismically secured ### Projector mount and mount adapter #### Specifications - Mount shall provide a minimum of 4 anchor point to the projector and support up to 50  lbs  with pitch, roll, and yaw adjustments. - Projector mount bracket shall be white or colored to match projector and mount pole. - Projector mount bracket shall have an integrated security locking mechanism  with Campus-standard ‘Lock-C’ key . - Projector mount bracket shall be of a universal configuration, able to adapt to future projectors. #### Specified Product Chief Part# RPMC1W (Lock-C) or Approved Equal   ### Projector Extension Pole   #### Specifications - Projector mount pole  [AKA:  *Adjustable extension column; Adjustable-height pipe adapter *] shall be 1.5 NPT threaded on both ends, contain cable exit points, security set screws, and be adjustable to meet ceiling height and projector needs. - Projector mount pole shall be able to support up to 500lbs. - Projector mount pole shall be white or of matching color to ceiling. - Length is to be determined per- installation but is typically sized to allow projector lens to be level with  top-of-image. #### Specified Product Chief Part# CMS012018w or Approved Equal ### Projector Wall Mount #### Specifications - Projector wall mount shall be anchored to wall studs with a minimum of four anchor points. - Mount shall have integrated lateral shift, and telescoping extension. - Mount shall have a  weight capacity of at least  15 0  lbs and structurally support 5x the weight of all components mounted onto mount (safe working load). - All mounts shall be installed according to manufacturer’s specifications  and campus guidelines . #### Specified Product Chief Part#  WMA2S or Approved Equal   ### Structural Ceiling Mount #### Specifications - Projector ceiling mount shall be anchored to building structure with a minimum of four anchor points. - Mount shall have a  rated   weight capacity of at least  200  lbs  and be UL certified, and be certified to hold 5 times the rated weigh t . - All mounts shall be installed according to manufacturer’s specifications  and campus guidelines . - Bolts into ceiling must be a minimum  rating of  SAE 5  and may have to be procured separately . #### Specified Product Chief Part# CMA395, CMA330 or Approved Equal ### Display Ceiling Mount for ‘T-Bar’ Ceiling Tile Replacement   #### Specifications - Projector ceiling mount shall be plenum-rated, full-tile false ceiling adapter with quick lock cables which replaces a  24 inch  (610 mm) x 24 inch (610 mm) ceiling tile. - Mount shall feature two or more electrical and cable knockouts for running power or signal. - Accepts a  1.5 inch  (38 mm) NPT pipe and uses wingnuts for rapid projector adjustments. - The mount also has the ability to shift the display or projector by 4 inches (102 mm) in any direction. #### Specified Product Premier Part# PP-FCMA-QL or Approved Equal --- ## Large Screen Monitor Mounting Hardware #### General Requirements   - All mounting hardware shall be installed according to manufacture r’ s specifications  and campus guidelines . - Any mounting hardware placed in hallways or a fire corridor must be fire rated (UL certified). - Mount must be UL certified to guarantee fire rating and being tested to four times the rated load limit . - The mount must also meet safe working load guidelines of being able to support five times the rated load limit. - Mount must be secured using SAE 5 bolts or greater - Wall-mounted Monitors and Mounts  and associated mounted equipment with a total weight at or over  100lbs should  have blocking board installed - On gypsum walls, the blocking board shall be placed behind gypsum board between studs to distribute weight as an added safety measure. - On Concrete Walls the blocking board can be installed on the finished surface of the wall.  Board must be painted to match wall finish ### Fixed Wall Mount   #### Specifications 1. Display mount bracket shall provide a minimum of 4 anchor points to wall studs and support up to  a rated weight of  200 lbs. 2. Display mount bracket shall be of a universal configuration, able to adapt to future displays. #### Specified Product Chief Part# LSMU or Approved Equal   ### Articulating Wall Mount #### Specifications 1. Display mount bracket shall provide a minimum of 4 anchor points to wall studs and support up to 200 lbs. 2. Mounting shall allow for extension from wall up to 37” and have a tilt/roll of - 15,+ 5-degree adjustments. 3. Mount bracket shall be of a universal configuration, able to adapt to future displays. #### Specified Product Chief Part# PDRU or Approved Equal   ### Desk Mount LCD Bracket   #### Specifications - Mounts onto a desk surface of at least 1" in thickness - Standard VESA 100 mount. - Multiple articulation points #### Specified Product Humanscale M8.1 or Ergotron Part# LX Monitor Arm or Approved Equal   ### Display Ceiling Mount for ‘T-Bar’ Ceiling Tile Replacement #### Specifications 1. Display  ceiling mount shall be plenum-rated, full-tile false ceiling adapter with quick lock cables which replaces a  24 inch  (610 mm) x 24 inch (610 mm) ceiling tile. 2. Mount shall feature two or more electrical and cable knockouts for running power or signal. 3. Accepts a  1.5 inch  (38 mm) NPT pipe and uses wingnuts for rapid projector adjustments. 4. The mount also has the ability to shift the display or projector by 4 inches (102 mm) in any direction. 5. All mounts shall be installed according to manufacturer’s specifications and campus guidelines . #### Specified Product Premier Part# PP-FCMA-QL or Approved Equal   --- ## Audio/Visual Equipment Rack   ### Cabinet  Equipment Rack   ### Free-standing Equipment Rack #### Specifications 1. Equipment Rack shall contain a minimum of 14  Rack Units (RU). 2. All rack rails shall be threaded for 10/32 screws. 3. All equipment components shall be rack mounted. 4. All rack components shall be secured with Security square-post truss-head screws, 3/4” long with washers (Middle Atlantic Part# HSK). 5. All racks shall have access to the back of rack, and access can be locked. 6. Refer to the **Appendix **below for typical rack layout. **Specified Product** Computer Comforts Part#  IT-303036-SS or Approved Equal   ### Wall-mounted  Equipment  Rack   #### Specifications 1. Equipment Rack shall contain a minimum of 16 Rack Units (RU).  All rack rails shall be threaded for 10/32 screws. 2. All equipment components shall be rack mounted. 3. All rack components shall be secured with Security square-post truss-head screws, 3/4” long with  washers (Middle Atlantic HSK). Fully welded construction for strength. 4. Shall offer Tool-Free system for center section mounting 5. Center section swing shall be reversible and can be both key - locked and padlocked 6. Center section shall be keyed differently from optional front door for security 7. Optimized for passive  thermal  management #### Specified Product Middle Atlantic DWR and EWR series    ### Under Table Full Size Rack #### Specifications 1. 19" mounting EIA-310-D tapped 10-32 mounting rails 2. Horizontal or vertical equipment mounting 3. Rear cable access for cable management 4. Side cable access 5. 6U rack #### Specified Product Proposed: Hammond Manufacturing VPB196UBK or Approved Equal ### Rack Accessories Most rack installations will require one of more of the following accessories:   1. Rack mount power distribution unit with 8 rear outlets. Specified Product: Tripplite PDUMH15net2LX 2. Rear rack mounting rails, tapped for 10-32 screws. Specified Product: Middle Atlantic Part#  t.b.d. 3. Locking rear door. Key must be compatible with campus-standard Middle Atlantic products. Specified Product: Middle Atlantic Part#  t.b.d. 4. Equipment shelves. Specified Product: Middle Atlantic Part#  t.b.d. 5. Blank or vented rack panels. Specified Product: Middle Atlantic Part#  t.b.d. --- ## Loudspeakers   A number of variables determine how many ceiling speakers are required for proper coverage in a given application. Each environment is different based on the room dimensions and ambient noise. Consideration must be given to the listener height, audio program content, desired SPL - sound pressure level, and how much the client will tolerate sound pressure level variances throughout the space. Since speakers are often tailored for specific applications, their design and performance play a major role in determining quantities and positioning. Refer to **Appendix** below for essential loudspeaker formulas. ### Drop Tile Ceiling Loudspeakers #### Specifications 1. The Audio Speakers shall comply with the intelligibility requirement s set forth in NFPA 72-2010 2. Dual cone 8" drivers 3. Lay in-tile 2ft x 2ft dimensions 4. Can be tapped at 8Ohms, 4Ohms, 70V, or 100V operation 5. Frequency Range (-10 dB): 100 Hz – 16 kHz 6. Nominal Sensitivity: 96 dB 7. Nominal Coverage Angle: 100° conical coverage (ave. 1kHz - 4 kHz) #### Specified Product JBL Pro LCT 81C/T or Approved Equal ### Wall Mounted Loudspeakers #### Specifications 1. Wall-mounted loudspeaker shall be of an 8”, 2-Way design  and use an integrated ball-mount 2. Loudspeakers may be either 8-Ohm or 70-Volt depending on amplifier used #### Specified Product JBL Part# Control-28 T-60 or Extron 725T or Approved Equal  ### Pendant Ceiling Speakers #### Specifications #### Specified Product --- ## Audio Amplifiers ### Small room Audio Amplifier  (Cap < 70)   #### Specifications Amplifier shall have a minimum output power rating of 20 Watts per channel @ 8 Ohms or 40 Watts, mono @ 70 Volts   #### Specified Product 1. Built into Extron IN1608xi IPCP SA (stereo amp) 2. Hall Research VSA-X21 HDBaseT Rx with Amp 3. Approved Equal ### Mid range rooms  (Cap > 70 and Cap < 150)   #### Specifications 1. Amplifier shall have a minimum output rating of 200 Watts RMS : 2 x 60 Watts per channel @ 8 Ohms or 200W @ 70V. 2. Outputs shall be bridgeable. 3. Must have automatic/configurable clip limiter and built-in compressor. 4. Amplifier shall be rack mountable and be ENERGY STAR qualified. #### Specified Product Extron Part# XPA 1002 (8 Ohm), XPA 1002-70 (70V) or Approved Equal   ### Large Room amplifiers (Cap 150+) #### Specified Product Crown DriveCore DCI series amplifier --- ## Signal Distribution and Control System   ### AV Control Processor (Controller) #### Specifications 1. A/V system hardware controller shall integrate with campus- standard help desk and system monitoring software: 1. Extron Global Viewer Enterprise 2. Controller shall have the following communication ports: 1. RS-232 2. Ethernet 3. Digital I/O 4. IR 5. Dry  Contact Closure  (Relays) . 6. SSH client/server communication capable 3. Controller must comply with all campus IT security standards. 4. All programming shall be turned over to the university and become property of the university with no limitation placed on its use. #### Specified Product    Extron IPCP Pro 255 with Link License user interface Part # 60-1431-01A ### AV User Interface (Touch Panel) #### Specifications 1. A/V system hardware controller shall be controlled locally via a 7" touch panel appliance. 2. The touch panel should be able to accept an In-Common or equivalent certificate. 3. Touch screen shall be capable of being powered via PoE. 4. Touch Panel must comply with all campus IT security standards. 5. All UI design work and graphic images (vector images and raster images) shall be turned over to the university and become property of the university with no limitation placed on its use. #### Specified Product    Extron TLP 725T or Approved Equal ### AV Distribution Switcher/Scaler #### Specifications 1. HDMI  switcher shall be controllable via RS-232 control. 2. Switcher shall have  a minimum of  f our  HDMI  inputs . 3. Switcher shall be HDCP compliant. 4. Switcher shall have  two simultaneous HDMI outputs. 5. Switcher shall have a fixed-level line output 6. Switcher shall have a variable-level line output 7. Switcher shall have a minimum of two analog balanced microphone inputs #### Specified Product Extron IN 1608xi -sa, IN 1808 -sa or Approved Equal   ### AV Distribution Amplifier (DA) #### Specifications 1. HDMI  Distribution amplifier (DA)  via HDBaseT 2. The HDMI distribution amp shall offer 8 HDBaseT Certified outputs and one HDMI Loop output; PoH  capability to power far-end receivers; 3. RS-232 & IR Pass-through 4. Shall have ability to control individuals devices via addressable ethernet ports #### Specified Product Extron Part # 60-1438-01 or Approved Equal   ### HDMI/ HDBaseT Extenders   #### Specifications 1. HDMI/ HDBaseT  transmitters and receivers shall be remotely powered  via PoE or  PoH  standards; shall include bi-directional RS-232 and IR signaling and be capable of ‘4K’ bandwidth. 2. The transmitter and receiver must be the same brand and compatible with each other (excluding final endpoints that have a built-in HDBaseT input)  to minimize any hardware or chipset incompatibility issues. #### Specified Products - Extron DTP TX HD2 230 or Approved Equal - Extron DTP RX 230 HDMI or Approved Equal ### Input Wall Plate/Interface  (‘BOB’)   #### Specifications 1. Audio– Visual  active  input  interfaces  shall be  high-bandwidth,  controllabl e via RS-232 control and  shall have the following minimum inputs: (1) HDMI, (1) VGA, and Audio. 2. Interface  shall be HDCP compliant and must have digital HDBaseT output and be powered by the receiver (PoE or PoH Standard). #### Specified Product  Extron DTP T UWP 4K 232d, part # 60-1755-13 or Approved Equal   ### Wireless microphone system   #### Specifications 1. The wireless microphone system shall include a ‘belt pack’ style transmitter with lapel microphone and receiver ; 2. 10 user-selectable frequencies, automatic frequency scan and Tone Lock squelch system for interference-free reception . 3. Must be compatible with and interchangeable with existing campus Audio- Technica  audio  systems with Frequency Band-I (482MHz - 507MHz). 4. Must meet all FCC guidelines and FCC acceptable frequency ranges for microphones #### Specified Product Audio-Technica Part# ATW-2129-I     ### Assisted Listening System (ALS)   #### Specifications 1. The Assisted Listening system shall  be a network-based system that will allow end-users to connect to the system with mobile devices and launch an application to listen into the room’s audio stream . 2. Based on ADA rules and California Building Code, a minim um of two audio neck loops will be available for use with mobile devices , the number of neck loops required rises as seating capacity rises above 50  per   room. 1. Refer to the **Assisted Listening Systems **section below. #### Specified Product - Broadcast Vision Entertainment AudioFetch Express - Assisted Listening Microphone ### Assisted Listening Microphone #### Specifications 1. USB Connectivity 2. Acoustic Echo Cancelling Capability 3. Should utilize a beam forming microphone array #### Specified Product Acoustic Magic Voice Tracker II, or Nureva HDL300 or Approved Equal  ### Document Camera (Doc Cam) #### Specifications 1. Minimum 13-megapixel resolution (4224x3156) 2. Must be capable of 1080P video @ 60FPS, 4K @ 30FPS 3. Must have a minimum of a 10x Mechanical Zoom, 8x Digital Zoom 4. Must have USB 3.0 Port 5. Traditional video output (HDMI) is optional #### Specified Product Hovercam Solo 8 Plus or Approved Equal Power Distribution Units (26 27 33)
1.05 Furniture Components ### Presenter Station (Instructor's Table) **Specifications** 1. Shall meet ADA standards for under table depth (19"), width (30"), and height (adjustable) 2. Shall provide a minimum 58 1/2" tabletop surface 3. Shall provide a minimum of 30" depth 4. Shall be able to handle 150-pound capacity or higher 5. Shall have a modesty panel 6. Shall have a bag hook **Specified Product**    Steelcase Airtouch Table
1.06 Room Design Considerations ### Projector Mounting Distance   1. The projector mount shall be located at the closest distance that allows for 50% focal length of the lens to  project the required image size; the distance is typically twice the width of the projection screen with "normal" lens. 2. Construction documents must specify consultation with knowledgeable  university official prior to the installation of the projector infrastructure to  insure  the proper locations as dictated by purchased projector model  relative to infrastructure such as lighting and HVAC . ### Lighting 1. Lighting Design: Lighting shall have the ability to be turned on/off in zones progressing from the front of the room to  the rear . 2. Lighting fixtures shall be ceiling recessed ( no hanging light fixtures ) and non-obstructing for the use of a video projector. 3. The projection screen surface  or LCD display  shall be free  of any direct lighting illumination . | | **DAY LIGHTING MODE ** | **General Mode / Non-Daylight ** | **AV Mode ** | | --- | --- | --- | --- | | **Student Desk ** | 30 fc min   150-200 fc max | 30 fc min   70 fc max | 10 fc min | | **Whiteboard ** | 30 fc vertical min | 30 fc vertical min | N/A | | **Screen ** | N/A | N/A | 8 fc vertical allow 8:1 video image with 3000 lumen  projector | | **Walls ** | 10 fc vertical | 10 fc vertical | N/A | *Table 2:* * Illumination values* Foot Candle (fc) Guidelines based on the “IESNA Lighting Handbook Reference and Application”, Ninth Edition *Figure * *4* * - Lighting Zones*   ### Window Shades Window coverings Windows shall have window coverings capable of reducing outside light with easy to operate controls.  ### Available Whiteboard Space with Concurrent Projector Use   1. Whiteboard usable space 2. Whiteboards placed in classrooms shall have a minimum of 10’ of total linear writing surface available to users while the projection screen is in use. ### Building Systems/Life Safety Systems**  ** #### Safety systems   1. Design considerations shall incorporate the use of Mass Notification systems as warranted by National Fire Alarm Code (NFPA 72) and campus standards. The Audio Speakers shall comply with the intelligibility requirements set forth in NFPA 72-2010. 2. Safety system warning devices shall not be placed on wall surfaces that will be covered by a projection screen. #### Clock systems   Clocks shall not be placed on the projection wall.  Clocks shall be self-correcting and integrated into the building clock system.     #### Building system sensors   Building systems sensors shall not be placed on wall surfaces that will be covered by a projection screen.   ### Assisted Listening Systems (ALS)   #### Compliance 1. Assisted listening systems shall be in accordance with section 219 and in compliance  California Building Code Title 24 and  section 706 of the revised  2010 ADA regulations. 2. Assisted  Listening Systems shall be integrated into Audio – Visual systems, have auxiliary inputs, and appropriate signage. #### Specifications 1. Furnish and install a net work based, wireless assisted listening system for use by the hearing-impaired  or others needing hearing assistance . 2. The assisted listening system (ALS) shall be capable of  streaming audio to end-user mobile devices . 3. The ALS system shall have 80dB SNR or greater, end-to-end. 4. The  application on the mobile device  will  allow for the use of  a stereo headset , Bluetooth audio transmission, or the use of a neck loop depending on the device’s hardware capabilities. #### Specified Product Broadcast Vision Entertainment  AudioFetch Express  or Approved Equal. #### Furnish and install the following components *The Americans with Disabilities Act (ADA) 2010 ADA Standards requires public facilities to provide auditory assistance devices.  Section: 706 Assistive Listening Systems  1. AudioFetch Express (Qty: 1 ea.) 2. Listen Technologies LA-166 Neckloop.  (Qty: 2 ea.) 3. Listen Technologies LA-304 ADA Access/Compliance signage kit. (Qty 1 ea.)
1.07 Acoustics and Environment ### Acoustic levels   1. Locate classrooms separate from internal and external noise sources such as elevators, mechanical rooms, street traffic, and food service areas. 2. Flooring and wall materials should seek to minimize outside noise from being audible inside the classroom. 3. Flooring should be specified with IIC (Impact Isolation Class) properties that prevent the transmission of sound.  Wall materials should have a sound transmission class rating of 50 as a minimum level.  Doors should have acoustical door seals. 4. Classrooms shall have a noise criterion not to exceed 35 dBA and have a maximum reverberation time of .5 seconds (RT60). ### Walls and Flooring   1. Flooring and wall materials should seek to minimize outside noise from being audible inside the classroom. 2. Flooring should be specified with IIC (Impact Isolation Class) properties that prevent the transmission of sound.  Wall materials should have a sound transmission class rating of 50 as a minimum level. 3. Doors should have acoustical door seals. 4. All rubber baseboards should be applied with acoustically-rated mastic ### Ceiling   1. Ceiling surface materials shall seek to enhance the acoustical properties and requirements of the room.  The amount of area that requires acoustical tile becomes a function of ceiling height.  A typical classroom with a ceiling height of 10 feet requires 50-60% of the ceiling area to use acoustical tile.  Acoustical ceiling tiles shall have a Noise Reduction Coefficient (NRC) between .65-.85 and a minimum Sound Transmission Coefficient (STC) of 50. 2. Areas that use a hard-lid ceiling shall include an access hatch to ceiling spaces. ### Loudspeaker Placement   1. Ceiling loudspeakers shall provide for a d = r * √ 2 overlap (D = the distance between loudspeakers r = the radius of loudspeaker coverage circle) between speakers. 1. The general coverage and number of speakers shall be based on  AVIXA A102.01:2017, Audio Coverage Uniformity in Listener Areas
1.08 Electrical Requirements ### Electrical Service for Audio-Visual Equipment   #### Media Wall Box/Floor Box - A minimum of two AC outlets - Protected, non-switched 3-wire  120 volt , 20 amp, NEMA 5-20R duplex electrical outlets, on a separate branch circuits. #### Break Out Box (BOB) - A minimum of two AC outlets adjacent to BOB (AV connection point) - Non-switched 3-wire 120 VAC , 15 amp,  NEMA 5-20R duplex electrical outlet  for laptop users #### Projector/Ceiling Box - A minimum of two AC outlets - Dedicated, protected, non-switched 3-wire 12 0 VAC , 20 amp, NEMA 5- 20R duplex electrical outlets . #### Large Screen Monitors (LED/LCD/OLED/QLED) - A minimum of one dedicated, protected, non-switched 3-wire 120  VAC , 20 amp, NEMA 5-20R du plex electrical outlets on a separate branch circuit. #### Electric Motorized Projection Screens - Provide one 120 VAC, 20 amp circuit to the left end of the projection screen typically. Provide a low voltage control switch located near instructor area. #### Utility student services (convenience outlets) - Place non-switched 3-wire 120 VAC, 20 amp, NEMA 5-20R  electrical outlets around the classroom perimeter every 5 feet or as necessary to allow for 30% utilization. #### Distribution Panels  - Distribution panels that serve Audio-Visual equipment circuits should be all taken from the same phase and be dedicated only for that purpose. - The electrical panel serving a telecommunications space should be grounded to that facilities TMGB or TGBB. - All audio, video and control electrical circuits should be fed from  individual branch circuit  of the power transformer free of high inductive loads. - There shall be no elevator motors, compressor motors, blower motors, etc. on the secondary side of the power transformer that feeds the media equipment.
1.09 Mechanical Systems ### HVAC 23 30 00 - Systems should incorporate designs that minimize the need to access equipment located in the classroom. - Designs should seek to reduce exterior noise from entering the classroom.  All equipment mounted is ceiling spaces shall be isolated to reduce any vibrations - Systems must comply with ANSI/ASA S12.60-2002 for maximum sound and vibration levels in classrooms. - Classroom walls should extend through the plenum area to the top deck. - All points that penetrate classroom walls need to be fully caulked. - Locate ducting and mechanical systems along sidewalls to enable maximum ceiling height for Audio-Visual systems.  Do not locate HVAC equipment above Audio-Visual equipment locations to allow for adequate installation of equipment.  Ensure clear paths above Audio-Visual equipment in ceiling spaces, for mounting and cable pathways. - Eliminate vents and registers from the projector and projection screen area. - Diffusers should be placed above the presenter area to keep presenters cool, such as the seating area in front of the instructor station. - Systems should use low-velocity discharge diffusers in air handling systems. - Any rooms containing Audio-Visual equipment racks must be serviced by air conditions systems. - Locate thermostats in areas away from Audio-Visual equipment that may emit heat.  Locate sensors away from screens, whiteboards, bulletin boards, and areas future equipment may be installed. ### Fire Suppression 28 46 00 - Locate ducting and piping along sidewalls to enable maximum ceiling height for Audio-Visual systems.  Do not locate fire suppression equipment above Audio/ Visual equipment locations to allow for adequate installation of equipment.  Ensure clear paths above Audio-Visual equipment in ceiling spaces, for mounting and cable pathways. - Locate fire strobes and alarms away from screens, whiteboards, bulletin boards, and areas future equipment may be installed.
1.10 Appendix ### Essential Loudspeaker Formulas **R****C**** = (H****C**** - H****L****) tan (A)** **D****C**** = (H****C**** - H****L****) / cos (A)** **ΔL****A**** = 20 log [D****R**** / (H****C**** - H****L****)]** **ΔL****E**** = 20 log (D****R**** / D****C****)** **L****MINREF**** = L****MIN**** - ΔL****E**** + Isobar** **L****MAXREF**** = L****MAX**** - ΔL****A**** ** Where: RC = Radius at coverage angle and listening plane HC = Ceiling height HL = Listener height A = Coverage angle at isobar DC = Distance from speaker at coverage angle and listening plane ΔLA = Distance loss for listener on-axis (inverse square law) DR = 1 meter or 3.28 feet reference distance ΔLE = Distance loss for listener at isobar LMINREF = Minimum target level on-axis at reference distance LMIN = Minimum needed level for listener at isobar Isobar = Boundary with a specified SPL attenuation LMAXREF = Maximum target level on-axis at reference distance LMAX = Maximum target level for listener on-axis --- ### Viewing Distances There are different models for calculating the optimal screen size of a display or projection screen based on where the closest and furthest viewers are located based on the type of viewing activity.  For classroom designs we specifically look at two models,    Calculations are based on information from the AVIXA standard:  The Basic Decision Making Model and the Advanced Decision Making Model.  The formula takes into account 20/20 vision and and the size of an element on a screen.  A guide on the AVIXA BDM and ADM calculations are shown below. ![DISCAS standard- key steps to determine the image size](media://104202ef-9c4d-423c-be32-d3ad74f4be2a) --- ![Second, determine the viewability of display content](media://ffc7761e-61ef-49da-8595-34912468f475) --- ![BDM Farthest Viewer](media://1921b9bd-9983-4eb3-8b4a-1a51626c705f) --- ![While the standard's formula will give you your exact EH, there are some general guidelines for practical](media://8b2aaeab-5709-4da8-9b9a-de5d26abe423) --- ![The key factors](media://7fa47845-f386-439d-9d28-7b0507b03dc2) --- Where the formula comes from: ![Projector formula](media://f929a71a-25e2-4cc2-a04e-64aa68601e7d) --- ![Projector formula variables](media://c32f1b2c-afdb-482b-8d89-761723a6d051) --- ![For 20-20 vision](media://9b62c983-dae2-471c-b48f-1eb3eb0b2a23) --- ### Media Junction Box Detail (typical use)   The Media Junction Box is the common connection point in the front of the room for AV gear dispersed throughout the facility. The connections include—but are not limited to—LAN, 120VAC service,  loudspeaker, RS-232 control, HDB aseT video, etc. All connections are to terminate with standard connectors on standard plates.     #### Specified Product Legrand EN2850, Legrand Vista Column or Approved Equal   ![Media Junction Box diagram. Outline of Chase](media://81d50fd2-b3a1-491f-848f-389e3698d124) ![Downward facing 120VAC Duplex](media://43340484-cde1-4175-b615-4d0f662d0892) ### Equipment Mounting (typical use)   There are unlimited mounting possibilities. These represent some of the solutions we have used in previous installations, but the Project Designer or Architect may require further customization for any given project. Seismic anchoring shall be used; all-thread shall be 3/8” minimum.  ![Figure 7](media://0f741f7e-0641-43ce-823e-56ceb1da5765) ![Figure 8](media://a2557481-8ea3-48c1-a467-02d12f72d0ab) ![Figure 9](media://bf8c9fef-4119-4b93-af40-624fabc237e0) ![Figure 10](media://46686569-72ce-41d7-9169-b6417bd4d8ff) ![Figure 11](media://ef0e31f6-c62f-4fbd-8abc-1d1d94a3ec7e) ![Figure 12](media://d0ce5fbd-e0ba-4283-b702-1dcc0f0343cd) ![Figure 13](media://4a4c1218-e550-4b7b-b4a7-31aa62a016f8) ![Figure 14](media://7207329d-5aa7-43e9-990f-d7d7748d91b0) ### Equipment Rack Layout (Typical use) ### Installation Contractor Scope and Practices (Typical use) #### Installation Contractor > ℹ️ - Refer to provided diagrams and layout drawings. > ℹ️ - Refer to bulk cable schedule. > ℹ️ - Install practices must adhere to campus AV standards. 1. Large Screen Displays 1. Mount TV(s) to supplied TV mounts 2. Provide HDbaseT certified cable wiring from TV to AV Media Box location. 1. Terminate with appropriate punch-down keystone terminal 2. Two (2) cables (primary and (non terminated ) spare) 3. Provide  HDbaseT Cat6 cable wiring from TV locations to AV Media Box location for AV control 1. Terminate with appropriate punch-down keystone terminal 2. connect network control cable 4. Provide speaker 16 gauge (AWG) speaker wire between TV box and AV media box 1. Terminate in banana plug terminals 5. Connect HDbaseT receiver to Displays 1. Supply HDbaseT patch cable 2. Supply 'secure-grip' HDMI cable 3. Supply control cable 2. Projector 1. Mount projector to supplied projector mount 1. align image to maximum screen size 1. level image and minimize use digital screen/image manipulation 2. Provide  HDbaseT certified cable wiring from Projector to AV Media Box location 1. Terminate with appropriate punch-down keystone terminal 2. Two (2) cables (primary and spare) 2. Connect HDbaseT receiver to projector 1. Supply HDbaseT patch cable 2. Supply 'secure-grip' HDMI cable 3. Provide  HDbaseT  Cat6 cable wiring from TV locations to AV Media Box location for AV control 1. Terminate with appropriate punch-down keystone terminal 2. Connect control cable to projector 3. Smart Whiteboard/Web Cam 1. Install and mount at projector location 1. Install USB extension cable 2. Connect to OFE 4. Speakers 1. Install Speaker mounts 1. Refer to layout diagram for location 2. Location to be field verified with Blue tape 3. Mount Speaker on supplied speaker mount 4. connect speaker wire to display box banana plug terminal 5. Instructor's Table 1. Install AV components at the instructor table 6. Rack 1. Install all OFE equipment per wiring diagram and rack elevations 1. Update all equipment to latest firmware 2. Supply all necessary cables to connect OFE 3. Supply Laptop connection cables 4. Label all cables and power supplies 5. Configure all OFE to meet functionality of System intent 6. Configure EDID of all devices set to 1920x1080 2  ch  audio 2. Provide programming for the system and device configuration 3. Supply customer with original code and configurations for all devices 4. Provide customer with Instruction Sheet 5. Provide customer with all manuals and warranty information.   Interconnect AV gear in rack. HDMI cables must be supported so there is no weight on the connectors. Only Velcro-type cable straps may be used. Power cables should be bundled individually so that devices may be removed for servicing. Provide service loops. Low-voltage cables to MLC controller should be long enough to allow the controller to be removed for rear access and service. 6. Test all video and audio sources and display.  Provide completed AV9000 checklist for system performance, prior to requesting system commissioning and sign off. 7. Align projector as required. No keystone adjustment should be used. 8. Adjust projector screen drop as needed. 9. Notify Facilities Project Manager that room is complete and ready for inspection. 10. Return all remote controls, manuals, cables and software to Customer. 11. Provide as-built drawings. 12. Dispose of all boxes and packing materials #### Installation Contractor Responsibilities  Compliance: Comply with the following Codes and Industry Standards 1. American National Standards Institute (ANSI). 2. Electronics Industry Association (EIA). 3. Audio Engineering Society (AES). 4. National Electrical Code (NEC). 5. National Fire Protection Association (NFPA). 6. UL Compliance: Comply with requirements of UL 50. 7. California Building Code 201 6 8. California Fire Code 201 6 9. Building Industry Consulting Service International (BICSI) 10. Audiovisual and Integrated Experience Association (AVXIA) 11. Audio-Visual System design and installation contractors shall have a minimum of 1 AVIXA CTS-D certified member 12. 1 4 . Cal State Telecommunication and Infrastructure Performance standards (TIP) #### Cabling, Equipment, and Installation 1. Providing all cable and pull strings in conduits for the specified systems. 2. Providing station cables for connection of IP-enabled audiovisual equipment to associated data network outlets, including but not limited to instructor’s computers, laptop connections,   system processors, and LCD displays. This applies to all equipment installed by the   Contractor, including Owner-Furnished (OFCI) items. Coordinate station cable requirements with the greater building-wide structured cabling system. 3. Coordinating and providing cable labels as stipulated by the owner and/or specified herein. 4. Furnishing and/or installing all equipment as specified. 5. Installing Owner furnished equipment as specified. 6. Providing loudspeakers as complete assemblies with back boxes, grilles, tile bridges, wall mounts, hanging hardware and other installation hardware as required. 7. Providing to the owner, upon completion, all accessories and ancillary items included with the manufacturer’s equipment but not used for the physical installation of the device. This shall include all user manuals, remote controls, batteries, tools, installation hardware,   carrying cases, protective covers, etc. 8. Furnishing all tools and equipment to ensure the work is performed in a safe and professional manner. 9. Interconnecting all components, both internal and external to rack cabinets, and furnishing all necessary cabling. 10. Ensuring that all cabling, equipment, and terminations are installed in accordance with accepted industry standards, approved shop drawings, manufacturer’s recommendations  and as stipulated herein. 11. Providing cable management hardware as required including; that required internal to rack cabinets; that required between pieces of equipment not housed in rack cabinets; and that required to extend cabling from rack cabinets and equipment to the greater facility cabling infrastructure. 12. Providing custom cover plates, wall plates, I/O connection plates, floor box insert plates as required. Coordinate with the Architect and/or Owner on the final selection of finishes. 13. Ensuring that all equipment, with the exception of portable equipment, is firmly fastened or attached in place. A safety factor of at least four shall be utilized for all brackets, fasteners  and attachments. Provide safety retention cables for overhead equipment such as loudspeakers, projectors, etc. 14. Ensuring  that all equipment mounting styles and locations comply with the 2010 ADA 15. Standards for Accessible Design. 16. Ensuring all equipment including switchers, transmitters, receivers, or any other gear in the signal chain is configured appropriately for system functionality and design.  Including the proper configuration of outputs for EDID and HDCP and audio. #### System Acceptance 1. If the Final Documentation submittal is determined by the Owner to be complete and accurate, the Owner will approve the submittal and forward the Final Documentation package to the Owner. 2. If the Final Documentation Submittal is determined by the Owner to not be complete and/or inaccurate, the Owner will return the package to the Contractor with a written listing of the required modifications. Upon completion of all of the required modifications, the Contractor shall resubmit the Final Documentation to the Owner for approval. The Final Documentation Submittal, and therefore the project, shall not be considered to be complete until all required documentation modifications have been made and approved by the Owner on behalf of the Owner. 3. Upon successful completion of Final Tests, Documentation and Training, the Contractor shall notify the Owner, in writing, that the system is complete. The Owner shall have fifteen (15) days to generate a “punch list” of omissions, adjustments, corrections and the like and respond in writing to the Contractor. In the absence of such a “Punch List”, the system shall be considered to be complete. 4. The warranty shall commence on the fifteenth day after the Contractor’s notification of completion of work, and the Owner shall process final payment. In the event that further work is required to complete this project, the Contractor shall be prepared to continue work, without additional compensation, until the system is accepted. #### Cabling 1. All cabling and termination shall be executed in adherence to standard industry practices and as outlined in: 1. AV Installation Handbook: Best Practices for Quality Audiovisual Systems – Second Edition:  InfoComm International, 2009 2. Philip Giddings - Audio Systems Design and Installation: Boston Focal Press, 1990 3. Kenneth T.Deschler - Cable System Design and Installation: McGraw-Hill, Inc. 1987 2. Cable Length Verification: Cable lengths where given in the Specification, for bulk or manufactured cable assemblies, have been provided to assist the Contractor in the bidding process. Cable run lengths, where specified, are end-point-to-end-point estimates and include consideration for tails. Estimates may be based upon cable tray systems; raceways, conduit runs, and furniture layouts indicated on construction drawings and may vary from the actual installed cable pathways. It is the responsibility of the Contractor to field verify required cable lengths for bulk cable or manufactured cable assemblies prior to ordering. 3. Cable Installation 1. Non-contiguous cable support mechanisms such as hangers and hooks shall not be spaced farther than four (4) feet apart. All manufactured raceways used for cables shall be installed according to the raceway manufacturer’s specifications 2. Cable runs shall be supported with devices designed for this purpose and are to be installed independent of any other structural component. 3. Cables routed vertically up walls, or between floors as vertical riser, shall be supported with clamps or other mechanisms. These supports shall occur at least three times per floor. 4. Cable stapling of any recognized media type shall not be permitted. 5. Cables shall be dressed in conveniently sized bundles and either laced or banded. Lacing or banding shall not be so tight as to deform cable bundles. 6. Cabling installed with a bend radius less than that recommended by the cabling manufacturer is not acceptable. 7. Cables and bundles terminating at equipment or connector panels shall be supported so as not to put strain on connections or connectors. 8. All cables, with the exception of video or pulse cables, which must be cut to an electrical length, shall be cut to the length dictated by the run. No splices shall be permitted in any pull boxes without prior approval of the Owner. 9. Cabling for equipment mounted in drawers or on slides shall be provided with a service loop of appropriate length. A cable management support for the service loop shall be provided to prevent the service loop travel from interfering with the operation of the drawer or slide, or snagging on adjacent cabling. 10. Microphone level, line level, loudspeaker level, and video lines shall be run in separate conduits, trough, raceway divider, and cable bundles. Low voltage DC and control may be run along with any but microphone or line-level runs. 4. Termination 1. All termination components must meet or exceed all specifications for given media type and application as described in this document and system drawings. 2. Crimp on connectors shall be installed only on the appropriate size cable using the manufacturer recommended crimp tool and die set. 3. Connections to electronic devices providing screw terminals shall be terminated using the appropriate gauge insulated spade or ring crimp terminal connector and crimp tool. 4. All mechanical solder-on connectors shall be attached to cable ends using rosin core solder. 5. Audio signal cable shields shall be protected with the appropriate gauge Teflon or heat shrinkable tubing. The jacket end of each audio cable shall be fitted with the appropriate gauge heat shrinkable tubing to provide additional protection to the base of the shield or shield foil. This also applies to the inside of mechanical connectors and cables that terminate at partitioned barrier strips. 6. Labels / Wire Markers 1. Except where otherwise indicated, all rack-mounted equipment, switches, controls, and interface panels shall be clearly labeled. 2. Rack mounted equipment shall be labeled with engraved and filled plastic laminate. 3. Where appropriate, the function of, or the input, output, or loudspeaker(s), served by each device shall be indicated. 4. Other methods of labeling rack mounted equipment may be accepted pending prior approval by the Owner and/or Consultant. 5. All cables shall be permanently identified at each end by machine printed cable markers. 6. Every cable shall have a unique tag number identifier for each cable. The Contractor shall include this unique tag number on the As-Built signal flow documentation. 7. Cable markers shall be placed two (2) inches from where the cable exits the strain relief of the connector, but never within a cable bundle. 8. Each cable marker shall include, in addition to the unique tag number identifier, the name of the origination and destination equipment termination at each cable end. (See example below). ![A107 Switcher Audio out 1-L](media://cdeda4af-a494-43a1-a520-811847e14d47) ![DAV-R03. PnI02-Swt4](media://498534be-a906-42ce-9298-bce6cd092464)
1.11 Standard System Designs The layouts and designs presented below represent the standard 2019 Core 1 Classroom design for University Scheduled Classrooms.
1.12 References and Bibliography - *Audio and Visual Systems Design*; InfoComm International, 2003 - *AV Installation Handbook*; InfoComm International, 2007 - *Projected Image System Contrast Ratio*; ANSI/InfoComm International, 2011 - *AVXIA standards * * * - A102.01:2017 - 3M-2011 - 10:2013, - F501.01:2015 - V202.01:2016 - F502.01:2018
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