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 building architects, contractors, and individual departments when looking at standards, processes, and ideal room setups conducive to a great classroom experience for all users of the space (presenters, students, and technical support staff, custodial support staff) with the most weight put on the learner's experience.
CSI MasterFormat
Construction Standards Reference Section
...
Expand | ||
---|---|---|
| ||
A. Media Junction BoxIntentCentralized 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). SpecificationsMedia 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 DetailsMedia 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
2. Network Data, Video, Power-Over-Ethernet (POE IEEE 802.3bt)
3. Audio and Control
4. Voice
B. Wall ChaseIntentIn 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 SpecificationsA 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 ProductThe Legrand Vista Architectural Column VFL77 2345CM GY D, or Approved Equal. Media Junction Box DetailC. AV Break-Out-Box (BOB) Junction BoxIntentThe 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. SpecificationThe ‘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 ProductWiremold Part# V5744-2 in Ivory or Approved Equal Additional Connectivity/Cabling Requirements
D. FloorboxIntentFloorboxes 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. SpecificationsFloor 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 ProductFSR Part# FL-500 series or Approved Equal; Cover panel t.b.d. E. Over-the-floor Cable RacewayIntentRaceway 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. SpecificationsRaceway 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 ProductConnectTrack 2.7 On Floor Wireway or Approved Equal F. Ceiling Equipment Storage BoxIntentCeiling 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. SpecificationsCeiling 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 ProductPremier Mounts Part# GB-AVSTOR3/GB-AVSTOR5 or Approved Equal G. Display Ceiling Mount for Ceiling Tile ReplacementIntentProjector 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. SpecificationsProjector 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 ProductPremier Part# PP-FCMA-QL/GB-AVSTOR 5 or Approved Equal H. TV BoxIntentTo efficiently manage cables behind a wall-mounted display for appropriate wall types. Specifications
Specified ProductFSR Part# PWB-100 or Approved Equal I. Loudspeaker Back BoxSpecificationsSpeaker 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 ProductJB L Part# Control-26C; Extron Part# CS120P, SM26, or Approved Equal J. EMT Conduit
K. Projection ScreensMotorized screensProjection Screen wider than 7 feet shall be motorized. Specifications
Specified ProductDa-lite Cosmopolitan Electrol or Approved Equal Manual Screens
Specified ProductDa-lite Advantage Model-C CSR or Approved Equal |
Expand | ||
---|---|---|
| ||
ComplianceComply with the following Codes and Industry Standards
Installation Practices
Termination
Labeling
Specified ProductImpact Inc, Advanced Wire Marking System, LSL-78 or equivalent
Video Cable (Bulk)CAT6ASpecificationsCable 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 ProductInfinity Cable ABA TSP2304503, ICE CAT6 a Plenum Shielded, or Approved Equal CAT6A ConnectorSpecificationsCAT6A cables shall be terminated with shielded, modular keystone jacks ( Hubbell style) . Specified ProductHubbell PART# SJ6A or Approved Equal Coaxial (single)SpecificationsCable should be RG59/U, Plenum-rated, white. Specified ProductICE RG-59 HDTV Plenum Video Cables (Patch)HDMI User CableSpecifications
Specified ProductExtron HDMI Ultra Series (length TBD) or Approved Equal HDMI Patch CableSpecifications
Specified ProductComprehensive 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)SpecificationsShielded CAT6 a, Solid conductor, 24 AWG, 4-pair, 475-MHz. Terminated with shielded RJ-45 plugs. Specified ProductExtron XTP DTP 24/n (length TBD) or Approved Equal Audio & Control Cable (Bulk)Loudspeaker cableSpecificationsLoudspeaker Cable is jacketed 16 AWG or 14 AWG, depending on amplifier wattage and cable length; shielded, and plenum-rated with overall jacket. Specified ProductBelden Part# 6200UE; West Penn Part# 25225B or Approved Equal Control & Audio WireSpecificationsCable is 22 AWG, shielded, twisted-pair, stranded, plenum-rated Specified ProductBelden Part# 9451P or Approved Equal Data Communication CableBulk cableSpecificationsData communication cable shall be Plenum-rated CAT6, 23awg, 4 Pr, Solid, 550mhz (w/spine), HDBaseT Certified, color blue. Specified ProductInfinity Cable ABA TSP 2304503 or Approved Equal Data Patch CablesSpecificationsData patch cables shall be 23awg, 4 Pair, Stranded, Color blue with RJ45 connectors. Specified ProductTBD |
...
Expand | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||||||||||
Projector Mounting Distance
Lighting
Table 2: Illumination values Foot Candle (fc) Guidelines based on the “IESNA Lighting Handbook Reference and Application”, Ninth Edition Figure 4 - Lighting Zones Window ShadesWindow coverings Windows shall have window coverings capable of reducing outside light with easy to operate controls. Available Whiteboard Space with Concurrent Projector Use
Building Systems/Life Safety SystemsSafety systems
Clock systemsClocks shall not be placed on the projection wall. Clocks shall be self-correcting and integrated into the building clock system. Building system sensorsBuilding systems sensors shall not be placed on wall surfaces that will be covered by a projection screen. Assisted Listening Systems (ALS)Compliance
Specifications
Specified ProductBroadcast Vision Entertainment AudioFetch Express or 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
|
...
Expand | ||
---|---|---|
| ||
Essential Loudspeaker FormulasRC = (HC - HL) tan (A) Where: Viewing DistancesThere 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. Where the formula comes from: 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 ProductLegrand EN2850, Legrand Vista Column or Approved Equal 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.
Equipment Rack Layout (Typical use)Installation Contractor Scope and Practices (Typical use)Installation Contractor
Installation Contractor ResponsibilitiesCompliance: Comply with the following Codes and Industry Standards
Cabling, Equipment, and Installation
System Acceptance
Cabling
|
Expand | ||
---|---|---|
| ||
The layouts and designs presented below represent the standard 2019 Core 1 Classroom design for University Scheduled Classrooms. |
...