Appendix-G-StndrdsWrkmnshp-RFQRMLC1860741.pdf

NIH Building 29B Renovation Conference Room AV Installation Solicitation ID: RFQ-RML-C-1860741

RFQ Appendices Section August 25, 2017

Appendix G - Page 1 of 15

APPENDIX G:

STANDARDS & WORKMANSHIP

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Primary Guidelines for System Acceptance The following guidelines for standards and workmanship shall constitutes a primary, mandatory basis for system quality assurance, quality check, system acceptance and sign-off of a completed system for the Government.

1. Building Code Compliance – The vendor shall be responsible for knowing and complying with all relevant national, state, and local building and safety codes for electrical, mechanical, plumbing, and low-voltage work.

2. Applicable Standards Documents - The following specifications standards, tests, or recommended installation methods and procedures or applicable installation or safety codes are applicable to the extent specified herein.

The list below includes, but is not limited to the relevant standards documents. The latest version of these documents as of the contract date shall apply.

2.1. High Voltage Guidance

2.1.1. National Electrical Code (NEC) NFPA-70

2.1.2. National Electrical Manufacturer’s Association (NEMA)

2.1.3. Underwriters Laboratories (UL)

2.1.4. Electronics Industries Association (E.I.A.)

2.1.5. American National Standards Institute (ANSI)

2.2. Low Voltage Guidance

2.2.1. Audiovisual System Engineering, by Davis and Davis Second Edition.

2.2.2. Handbook for Sound Engineering Third Edition by Glen Ballou

2.2.3. Video Engineering by Arch Luther, Andrew Inglis

2.2.4. Basic Television and Video Systems Sixth Edition, by Bernard Grob, Charles Herndon

2.2.5. BICSI/INFOCOMM AV Design Reference Manual.

2.2.6. IEEE standards for advanced audio and video coding 1857-2013.

2.3. Government Electrical Specifications

2.3.1. J-C-30A &Am-1 Cable and Wire, Electrical (Power, fixed installations)

2.3.2. W-C-3735B Circuit Breakers, Molded Case, Branch Circuit, and Service

2.3.3. W-C-586C Conduit outlet boxes, bodies, and entrance caps, electrical: cast metal

2.3.4. W-C-596E/Gen Connector, Electrical, Power, General Specifications

2.3.5. W-F-406B Fittings for Cable, Power, Electrical and Conduit, Metal, Flexible

2.3.6. W-F-408C Fittings for Conduit, Metal, Rigid, (Thick wall and EMT)

2.3.7. W-J-800D J u n c t i o n B o x : Extension, J u n c t i o n B o x ; C o v e r , J u n c t i o n B o x ( Steel, Cadmium, or Zinc Coated)

2.3.8. HH-I-553C Insulation Tape, Electrical (Rubber, Natural, or Synthetic)

2.3.9. HH-i-595C Insulation Tape, Electrical, Pressure Sensitive Adhesive, Plastic

2.3.10. WW-C-0054OC Conduit, Metal, Rigid: and Coupling, Elbow, Nipple, Electrical Conduit: Aluminum

2.3.11. WW-C-566C Conduit, Metal, Flexible

2.3.12. WW-C-581 E Conduit, Metal, Rigid, and Intermediate: and Coupling, Elbow, and Nipple Electrical

Conduit: Steel Zinc Coated

2.3.13. C2-1990 National Electrical Safety Code

2.3.14. C97.1-1972 Low Voltage Cartridge Fuses 600v or less

2.3.15. Institute of Electrical and Electronic Engineers (IEEE)

2.3.16. 142-1982 Recommended Practice for Grounding of Industrial and Commercial Power Systems

3. Compatibility

3.1. The vendor shall provide products, services, processes, and systems that are compatible with existing high voltage, low voltage, wireless, hardware, software, and communications infrastructure.

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4. Network Security

4.1. The vendor shall provide products, services, processes, and systems that are secure, per Government requirements. Vulnerabilities to the A/V equipment shall be eliminated or reduced. Examples include, but not limited to, telnet disabled, HTTPS enabled, current software patches, and strong passwords. The vendor shall be subject to security guidance and requirements from the Government.

5. Site Coordination – The vendor shall work closely with the Government project team to specifically identify and comply with site-specific facility issues having to do with equipment location, mechanical, electrical, and plumbing (MEP) requirements, facility access, material disposal, parking, security, activity hours, and all other issues involving onsite work.

6. Project-Related Software – All application software generated for this project becomes the property of the United States Government. This includes, but is not limited to all control system code, all control system GUIs, and all digital signal processor (DSP) configurations. Also included are all passwords, license keys, hardware dongles, and similar access controls for products, services, or processes that have been purchased for this project.

6.1. As part of the final as-built documentation package, the vendor shall be required to provide all software on a non-encrypted, non-locked, standard CD or DVD (or, USB thumb drive), as well as any physical or document-based materials related to the project.

6.2. The vendor shall provide the complete, un-compiled SOURCE CODE.

6.3. The Government has unlimited rights to all documents/material produced under this contract, in accordance with the FAR clause at 52.227-14, Rights in Data – General. All documents and materials, to include the source codes of any software, produced under this contract shall be Government owned and are the property of the Government with all rights and privileges of ownership/copyright belonging exclusively to the Government. These documents and materials may not be used or sold by the contractor without written permission from the Contracting Officer. All materials supplied to the Government shall be the sole property of the Government and may not be used for any other purpose. This right does not abrogate any other Government rights.

7. Project Documentation and Deliverables

7.1. All submitted documents shall be converted to Adobe PDF format, from whatever format they are generated in, unless otherwise requested by the Government.

7.2. Text-based documents shall be generated in Microsoft Word (DOC file format), oriented in portrait, and formatted in letter-size (8.5” x 11”).

7.3. Spreadsheet documents shall be generated in Microsoft Excel (XLS file format), oriented in portrait, and formatted in letter-size (8.5” x 11”), unless detail requirements require a more horizontal orientation. In the event of the latter, the vendor may format their spreadsheet in landscape orientation.

7.4. Facility drawings shall be generated in Autodesk AutoCAD (DWG file format), oriented in landscape, and formatted in tabloid-size (11” x 17”)

7.5. Schematic and rack elevation drawings shall be generated in Autodesk AutoCAD (DWG file format), oriented in landscape, and formatted in tabloid-size (11” x 17”), unless detail requirements require a larger paper space. In the event of the latter, the vendor may format their drawings in a D-size format.

7.6. All schematic drawings shall contain the following minimal information:

7.6.1. Brand and model of all devices.

7.6.2. Each device shall have a unique identification number.

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7.6.3. Each signal line shall have a unique alpha-numeric cable label number, which corresponds to the cable pull list. (See Appendix G: Standards & Workmanship – Labels, for numbering convention format.)

7.7. The vendor shall respond using Government-issued forms and formats, whenever required. These forms and formats shall not be altered by the vendor, unless otherwise directed by the Government.

8. Equipment Mounting

8.1. Ceiling-Mounted Projectors

8.1.1. The projector shall be suspended from an approved metal ceiling mount bracket that is designed to accommodate the specific projector, or to provide universal support for a projector of the same mass and type.

8.1.2. The projector mount shall be suspended from the structural ceiling (slab) via at least four (4) lengths of 3/8” (min.) threaded rod. The threaded rod shall be securely anchored to the structural ceiling via compatible concrete anchors. If steel support beams are present, this may also be done with a combination of steel beam clamps and steel channel strut.

8.1.3. The interface between the above-ceiling structure and the below-ceiling mounting bracket may be either a 1.5” steel, NPT-threaded pipe or a direct connection of the mounting bracket to the four (4) threaded rods. In either case, this interface point shall allow a concealed cable pathway for the signal cabling at the center of the mounting bracket. (A separate cable plate, or grommet is not acceptable.)

8.1.4. The exposed projector mount bracket shall be rigidly secured, to prevent excessive X or Y horizontal movement. (This is defined as less than ¼” of lateral movement, in any direction.) If the suspending steel support lacks such rigidity, the vendor shall “guy-wire” the above-ceiling support from multiple directions to prevent movement.

8.1.5. In cases where a plenum-rated receiver, or active component is required at the projector location, this shall be mounted to the structural support above the ceiling. (In no circumstance, shall anything be laid on top of suspended ceiling tiles.)

8.2. Ceiling-Mounted Speakers

8.2.1. All ceiling speakers (regardless of type) shall be securely tethered to the structural ceiling, via 16 AWG (or better) galvanized steel wire. (These wires shall not be secured to other support wires or hangers in the ceiling. Nor, shall they be suspended from other objects in the ceiling.)

8.2.2. The weight of the ceiling speaker shall not rest on the suspended ceiling grid, under any circumstances.

8.2.3. All in-ceiling speakers shall be plenum-rated and cut to fit in the center of the ceiling tile (unless otherwise specified). The vendor shall assure that the cut hole is concealed by the trim ring of the speaker.

8.3. Wall-Mounted Monitors and Televisions

8.3.1. All wall-mounted monitors and televisions shall be installed on an approved metal wall mount that is designed to accommodate the specific monitor or TV, or provide universal support for a display of the same mass and type.

8.3.2. The mounting bracket shall be attached to the plywood backing with a minimum eight (8) 3/8”, one-way, steel anchor bolts.

8.3.3. The mounting location shall be reinforced with a sheet of ¾” plywood that is cut to a size equal to 160% (or, better) of the overall contact area of the wall side of the mounting bracket. The plywood shall be roughly sanded and deburred and painted with a flat black finish (unless otherwise specified).

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It shall be connected to at least three (3) wall studs using a minimum of twelve (12) approved 3/8”, one-way, steel anchor bolts.

8.3.4. The finished mount shall have 4:1 load ratio (or, better) with reference to support of the combined dead-load weight of the display and the mounting bracket.

8.3.5. This specification applies to wood, or steel stud walls, using 16” on-center stud spacing.

8.3.6. The image from the mounted display devices shall be free of visible vibration.

8.4. Wall-Mounted Cameras, Speakers, & Miscellaneous Objects

8.4.1. All wall-mounted cameras, speakers, and miscellaneous objects shall be installed on an approved metal, or plastic wall mount that is designed to accommodate the specific device or provide universal support for a similar device of the same mass and type.

8.4.2. The mount shall be attached to the wall surface with the exact number and type of screws specified by the manufacturer.

8.4.3. In cases where stud attachment is not possible, used of one-way, steel anchor bolts is acceptable.

8.4.4. This specification covers devices weighing 25 pounds, or less. (Heavier object require approval by the

COR.)

8.4.5. This specification applies to wood, or steel stud walls, using 16” on-center stud spacing.

8.4.6. The image from the mounted camera shall be free of visible vibration and any other abnormal motion.

9. Approved Cabling, and Connectors

9.1. All wire and cabling used in non-conduit situations (in walls, ceilings, and floors) shall always be plenum-rated.

9.2. The vendor shall be responsible for using only the type, brand, and model of wire/ cabling, connectors, and termination tools/methods specified by the manufacturer, when applicable and necessary to assure equipment warranty. (Note: Failure to use the proper, manufacturer-approved cabling, connectors, and termination tools/methods that results in void of warranty shall be the liability of the vendor.)

9.3. In the absence of manufacturer specifications for wire and cabling, the vendor shall conform to the following specifications, unless otherwise specified:

9.3.1. For microphone and line-level analog audio – 22 AWG stranded, copper, shielded, twisted pair.

9.3.2. For constant voltage speaker audio – 16 AWG stranded, copper, unshielded two-conductor wire.

9.3.3. For Ethernet – Cat 6-rated network cable and shielded 8P8C modular connectors.

9.3.4. For RS-232, 422, 485, and IR Serial – 20 AWG stranded, copper, shielded, twisted pair.

9.3.5. For multi-conductor control – 18 AWG stranded, copper, shielded multi-conductor cable.

9.3.6. For HD-SDI – Any plenum-rated coaxial cable that is approved by all manufacturers whose equipment is impacted by the cable.

9.3.7. For HDBaseT – Any plenum-rated twisted-pair cable that is approved by the manufacturer.

9.4. Any pre-terminated cables shall conform to the requirements of any manufacturer whose equipment is impacted by the cable.

10. Cable Termination

10.1. The vendor shall be responsible for proper termination of all cables, in a manner and using materials that conform to the standards of the cable manufacturer and the manufacturers of any equipment that is impacted by the cable.

10.2. The vendor shall be responsible for using commercial-grade connectors and terminations and/or the models specified by the manufacturer of the cable and connected equipment.

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10.3. The vendor shall be responsible for using commercial-grade terminations tools and/or the models specified by the manufacturer of the cable and connected equipment.

10.4. The vendor shall assure that all broken-out, chassis-connected, and multi-conductor cabling has a trimmed back jacket, isolated ground (when applicable), a collar of shrink tubing, and a specified wrap-around cable label.

11. Interface Plates, Panels, & Grommets

11.1. The vendor shall provide Government-approved plates, panels, and grommets for all wall boxes, ceiling boxes, floor boxes, table boxes, table penetrations, and exposed cable passages.

11.2. These items shall be physically compatible and aesthetically consistent with the attachment points and surrounding surfaces.

11.3. These items may come for commercial-grade stock, unless specified as custom.

12. Cable Disconnects

12.1. The vendor shall provide a Government-approved, physical disconnect for all umbilical cables and cable bundles that connect moveable equipment with permanently-installed wall plates, floor boxes, ceiling boxes, and interface points – unless otherwise indicated in the specification.

12.2. The only categorical exceptions are equipment rack cable bundles (not specified as disconnect-able) and equipment that have inherent, close-proximity connections (such as projector, monitors, and cameras).

12.3. Such disconnects shall be terminated with Government-approved cable and bulkhead connectors.

13. Cable Bundle Dressing

13.1. The vendor shall provide Government-approved dressing for all exposed cable and wire bundles (containing more than one wire, or cable).

13.2. Single exposed cables are acceptable, provided the jacket color is black, the cable is designed for the purpose, the cable is not subject to inordinate stress, and the cable is not visually exposed.

13.3. In general, the vendor shall cover such exposed cable bundles with a flexible, snug-fitting, black, braided nylon sheath. The ends of the sheath shall be heat-singed, and/or heat-shrunk, and/or wire-tied to prevent fraying and provide a finished appearance.

14. Equipment Rack Dressing & Cable Management

14.1. The vendor shall install Government-approved cable management hardware on both sides of the rear section of equipment rack enclosures. Such hardware shall include vertical lacing strips, horizontal lacing bars, and chassis-mounted cabling supports. All such cable management shall be secured in place with metal hardware.

14.2. The vendor shall insure that high and low voltage power lines are isolated from all data and signal cables, to the greatest extent possible within the confines of the equipment rack enclosure. In general, power should be located on the left-hand side and all other signal and data cabling should be located on the right-hand side.

14.3. The vendor shall secure all cabling in place using a combination of one-way nylon wire ties and detachable Velcro-type cable ties.

14.4. The vendor shall assure that all wires and cables contain the prescribed wrap-around cable label and that these labels are visible for service inspections.

14.5. The vendor shall assure that all wires and cables contain an amount of slack and/or service loop necessary for troubleshooting and repair service.

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14.6. The vendor shall assure that any cables with non-locking connectors (such as standard HDMI) are fastened in place, to avoid accidental disconnection.

14.7. The vendor shall assure that the interior of the rack enclosure is free from unnecessary cable clutter.

14.8. The vendor shall assure that the rack conforms to the approved rack elevation drawings.

14.9. The vendor shall assure that all convective and ventilation air ways are unobstructed and ventilation fans are configured to convey air flow to aid natural convection and heat dissipation.

14.10. The vendor shall assure that the completed rack is clear of any integration-related dirt and debris.

15. Labeling

15.1. Wire and Cable Labels - The vendor shall apply a Government-approved printed, wrap-around, self-laminating label to all system wires and cables, showing the hyphenated, six-character numbering designation in the accepted submittal drawings.

15.1.1. The labels shall have black characters against a white background.

15.1.2. The type shall be oriented in parallel to the long-axis of the cable, and shall be printed repeatedly around the circumference of the cable to enable reading from multiple angles.

15.1.3. Acceptable labeling types include, but are not limited to Hellermann-Tyton and Brady. (Handwritten labels shall not be acceptable.)

15.2. Wire and Cable Number Convention – Each individual cable shall have a unique, hyphenated, six-character, alpha-numeric number that corresponds between the cable label, the wire pull list, and the system drawings.

15.2.1. The numbering convention shall consist of a 3-letter prefix, a hyphen (with no spaces), and a 3-digit numerical suffix.

15.2.2. The prefix will indicate the signal type and the suffix will be a logical, sequential number.

15.2.3. Audio signals will have the prefix “AUD”, video signals will be “VID”, control signals will be “CTL”, network signals will be “NET” and HDBaseT signals will be “HBT”.

15.2.4. Example: (A cable label for a run to an HD-BaseT receiver could be “HBT-002”.)

15.3. Wall Plates, Panel Plates, Floor Boxes, Table Boxes, and Miscellaneous Gear – The vendor shall apply labels to any plates, connectors, or equipment requiring identification by users on wall plates, panels, floor boxes, table boxes, or exposed equipment.

15.3.1. The labels shall have white characters against a black background.

15.3.2. The labels shall be made from a sturdy, durable, laminated stock with a durable adhesive.

15.3.3. The labels shall be size-appropriate for the particular location. (Use appropriate-sized label tape, if a machine labeler is used.)

15.3.4. Text shall be machine generated. No handwritten labels.

15.3.5. Acceptable labeling types include, but are not limited to Brother P-Touch. (Embossed labeling systems are not acceptable.)

16. Site Clean-Up – The vendor shall be responsible for assuring that the finished room is clean and free of all new project-related mess and refuse.

16.1. The vendor shall dispose of all bagged refuse, all flattened cardboard boxes, and all other project-related items in the proper dumpsters and recycling receptacles located at the building’s loading dock area.

16.2. The vendor may not primarily rely on room and floor receptacles for substantial amounts of trash.

16.3. All floors, ceilings, walls, glass, and furniture surfaces shall be cleaned of installation-related smudges and dirt, prior to final project acceptance.

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16.4. All moved room furnishings and other Government property shall be restored to their original locations and the room shall be restored to the original state.

17. Old Equipment Disposal – The vendor shall be responsible for moving all de-installed, legacy equipment to a pre-designated area in, or near the installation site. The Government project team will be responsible for further disposal of the items, unless otherwise specified. The vendor shall also be responsible for disposal of non-equipment refuse (such as old wiring, hardware, broken ceiling tiles, etc.), per the previously mentioned Site Clean-Up specifications.

Secondary Engineering Performance Standards The specifications and standards described in this section shall not be regarded as the primary basis for acceptance testing. For acceptance testing, the Government shall primarily rely upon visual, aural, operational, and otherwise observable performance of the finished system, as the basis for quality assurance, quality checking, acceptance, and sign-off. However, if the primary method of observation-based testing reveals deeper system issues, the specifications and standards described below may be invoked by the COR, in order to define objective corrective actions to be performed by the vendor. Therefore, the vendor is required to conform to these guidelines.

18. Audio Signal Management System Specifications - The audio signal parameters listed below include, but are not limited to the applicable signal performance requirements in this system. All equipment, cabling, materials, design, configurations, and settings shall support the audio signal performance parameters listed below.

18.1. The vendor shall ensure the following:

18.1.1. All audio products are installed in a proper and safe manner per the manufacturers’ instructions.

18.1.2. Insulation and shrink tubing are present where required.

18.1.3. Dust, debris, solder, splatter, etc. is removed.

18.1.4. Cable is dressed, routed, and labels and all connections are consistent with regard to polarity.

18.1.5. All labeling has been provided and installed.

18.1.6. All products are neat, clean, unmarred and securely fastened.

18.1.7. All debris has been cleaned and removed from the site.

18.1.8. All electronic devices are properly grounded.

18.2. Preliminary Power and Wiring Testing

18.2.1. Test each AC power outlet for proper connections for hot, neutral and ground.

18.2.2. Measure and record the DC resistance for the technical ground in the equipment racks and console. Resistance should be 0.15 ohms or less.

18.2.3. Measure the impedance of each speaker line from the amplifier rack.

18.3. Speaker Verification Test:

18.3.1. Provide a low level distinctive tone to each amplifier input.

18.3.2. Systematically turn on each amplifier, one by one, and verify that the correct speaker is being driven. Correct wiring as required for proper operation.

18.4. Constant Voltage Speaker Test:

18.4.1. Provide a low level distinctive tone to each amplifier input.

18.4.2. Systematically turn on each amplifier, one by one, and verify that the correct speaker is being driven. Correct wiring as required for proper operation.

18.4.3. Walk the areas covered by the speakers and check for even level volume coverage.

18.4.4. Adjust any speakers that are not correct by changing tap values as required for even volume level.

18.5. Speaker Polarity:

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18.5.1. Use an electronic polarity checker to test each reinforcement speaker. All speakers should have the same relative polarity.

18.6. System(s) Gain Adjustment:

18.6.1. Adjust each active device to have unity gain from the console output to the input of the amplifiers.

18.6.2. With all amplifiers turned off, connect a sine wave and pink noise to an input of the console.

Using a RMS voltmeter, adjust the scale to an output between -10 and 0dBu. Once level has been established, it should remain unchanged throughout the testing.

18.7. Signal Delay Adjustment:

18.7.1. Adjust the delay speakers to ensure proper synchronization between the main speakers and the delayed speakers.

18.7.2. Using TEF20 or SMARRT Live measure and adjust the arrival times of each speaker to be fully synchronized.

18.8. Amplifier Level Adjustment:

18.8.1. Adjust the gain of each amplifier to provide consistent and appropriate levels throughout the seating areas/facilities.

18.8.2. With the console and other electronic devices feeding the amplifiers adjusted as described above, adjust the output of the console to be -10dB on the output VU meter.

18.8.3. Adjust the appropriate amplifiers to achieve 85dBA in the area covered by one of the speakers.

Use a calibrated sound level meter to make the adjustments.

18.8.4. If the speaker is utilizing an active crossover, mute the individual bandpass sections to adjust each section independently.

18.8.5. Start with the speaker closest to the stage area or the booth location as appropriate. Once that speaker has been adjusted to the above criteria, repeat this procedure for each speaker cabinet.

18.8.6. Amplifiers should be set to provide an average of 85dBA plus or minus 1.5dB throughout each seating section.

18.9. Amplifier Level Adjustment 70-volt System:

18.9.1. Adjust the level of the 70- v o l t systems to achieve a volume level appropriate for their location and intended use.

18.9.2. After initial amplifier adjustment, walk all areas utilizing the 70-volt systems and check for volume uniformity. If any changes of 3dB or more occur, adjust that specific area or speaker as required for even coverage.

18.10. Input Verification Test:

18.10.1. Using a microphone, portable signal generator, or CD player, send signal from every microphone input to the console. Check every connection location in the facility.

18.10.2. Verify video signal presence at each component input with test equipment and verify the proper signal and uniform strength.

18.10.3. Verify that the receptacle under test appears at the correct position on the patch bay and is operating properly.

18.10.4. In a similar manner, check any other inputs or tie lines, as appropriate.

18.11. Impedance:

18.11.1. Measure absolute impedance value of each loudspeaker line at 250, 500, 1000, and 2000 Hz without the amplifier connected but with all speakers connected. Record the impedance levels versus frequency for each loudspeaker line.

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18.11.2. Impedance shall not be below the rated load impedance of respective amplifier and may be any value equal to or above that.

18.11.3. Check the resistance of the lines for loudspeaker, line level, and microphone receptacles with the receptacles opened and shorted. Document and repair any shorts or discontinuities found.

18.12. Polarity:

18.12.1. Verify the polarity of each device in the shop to obtain true polarity throughout the system.

18.12.2. Verify and document that polarity is kept throughout the system after wiring from inputs through output devices or receptacles.

18.13. Gain Structure:

18.13.1. Turn off amplifiers and set equalizers and filter controls to flat response. Do not bypass any equalizers or filters.

18.13.2. Adjust compressors and limiters to a 1:1 compression ratio and a +10 dBu limiting threshold.

Do not bypass these processors.

18.13.3. Insert pink noise into the mixer or mixing console and adjust levels to obtain a 0 dBu reading for the mixer or mixing console output. Distribute this output to all systems and subsystems.

18.13.4. Adjust the output of line level electronics and signal processors to obtain a 0 dBu output at the output terminals. For equipment with input level controls, adjust the input controls so that input levels peak at -10 dB. For equipment, not capable of providing 0 dBu output, adjust to achieve as close to 0 dBu as possible.

18.13.5. Turn amplifier gain controls to minimum and turn on the power amplifiers. Adjust the gain controls to achieve a +4 dBu output level for low impedance amplifiers and a +18 dBu output level for high impedance or constant voltage amplifiers.

18.14. Hum and Noise Level:

18.14.1. Without changing the gain, terminate microphone and line level inputs with proper shielded resistors of 150 and 600 ohms respectively.

18.14.2. Measure and record overall hum and noise levels for each power amplifier output from each input and with all inputs simultaneously. Hum and noise shall be at least 50 dBA below rated power output levels with amplifier controls set for optimum signal-to-noise, using input from line level and microphone sources.

18.15. Electrical Distortion:

18.15.1. Load amplifier outputs with appropriate resistors matching the nominal impedance of the output terminals in place of the actual loudspeaker loads.

18.15.2. Adjust gain controls as for hum and noise level test.

18.15.3. Apply 250 Hz, 500 Hz, 1 kHz, and 2 kHz sine wave signal from an oscillator with less than 0.01% Total Harmonic Distortion to one input, such that a level of 0 dBu is obtained on the mixer.

18.15.4. Measure and record the electrical distortion at each power amplifier output. Distortion shall be less than 0.5%.

18.16. Parasitic Oscillation and Radio Frequency Pick-up:

18.16.1. Set up system for each specified mode of operation.

18.16.2. Using a 5 MHz bandwidth oscilloscope and loudspeaker monitoring.

18.16.3. Ensure that the system is free from spurious oscillation and RF pick-up with the absence of any input signal and with a 160 Hz signal at a 0 dBu level on the mixer or mixing console.

18.16.4. Repeat this test for each mode of operation of the lighting dimmers (incandescent, neon, and fluorescent).

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18.17. Background Noise:

18.17.1. Using a calibrated ANSI S1.4-1983 (1997) Type 1 or IEC 60651-01-1994, precision sound level meter, determine the average ambient noise level in the room. Record the level d er ived. The average background noise shall be 60 dBA or below during performance of the following tests. If noise level exceeds this criterion, promptly notify the Consultant before proceeding further.

18.18. Buzzes and Rattles:

18.18.1. Apply a 1 kHz sine wave signal such that a 0 dBu level is obtained on the mixer or mixing console.

18.18.2. Sweep loudspeaker systems from 50 Hz to 5 kHz at 6dB below full amplifier power.

18.18.3. Listen for buzzes, rattles, vibrations or resonance. Locate and correct problems.

18.18.4. If the cause is outside the system, promptly notify the Consultant, indicating the cause and recommended corrections.

18.19. Coverage:

18.19.1. Using pink noise as an input, adjust loudspeakers and output levels to provide ±6 dB coverage in the octave band centered at 1 kHz throughout the areas served by the system.

18.19.2. Measure and record results.

18.20. Equalization:

18.20.1. Equalize the sound systems in order to provide uniform seat-to-seat response, raise the threshold of feedback, suppress ring modes, and insure natural, pleasing sound in equal and adequate amplitude with maximum degree of intelligibility, and provide performance conforming to the requirements specified under "Acceptance Testing."

18.20.2. Turn off systems except the speaker system under test.

18.20.3. Using pink noise as an input and with system equalizers set to bypass operation, determine the average frequency response of the loudspeaker system in the room using a 1/3 octave real time analyzer.

18.20.4. Record the frequency response derived.

18.20.5. Locate the analyzer microphone approximately 1 m above the floor at a point which approximates the average frequency response, within ±3 dB from 50 Hz to 16 kHz.

18.20.6. Record the frequency response at this location.

18.20.7. Using pink noise as an input and with system equalizers set to normal operation, set low and high pass filters at 63 Hz and 16 kHz respectively.

18.20.8. Adjust the 1/3 octave filter settings to obtain the following response curves, minimizing the variation (±3 dB) between adjacent filter settings:

18.20.9. Roll off -6 dB per octave below 125 Hz.

18.20.10. Maintain ±3 dB, 125 Hz to 4 kHz.

18.20.11. Roll off -3 dB per octave from 4 kHz to 12 kHz.

18.20.12. Roll off sharply above 12 kHz.

18.20.13. With any system microphone open, make minor adjustments to maximize gain before feedback. No more than 3 filter settings shall be adjusted.

18.20.14. Record the frequency response derived.

18.21. System Input and Output Levels

18.21.1. Using pink noise source material and a calibrated ANSI S1.4-1983 (1997) Type 1 or IEC 60651-01- 1994, precision sound level meter, perform the following:

18.21.1.1. For microphone level inputs: locate a pink noise source at a distance of 300 mm from the corresponding system microphone. Adjust the pink noise source to provide a level of 75 dBA at the microphone and set mixer levels to achieve a 0 dBu level at the mixer output.

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18.21.1.2. For line level inputs: use system program source equipment, with pink noise playback media, as a direct input to the mixer or mixing console and set mixer levels to achieve a 0 dBu level at the mixer output. Repeat for each system input individually where mixer inputs vary in input sensitivity. Settings for equivalent sensitivity inputs may be duplicated.

18.21.1.3. With any input set as specified above, adjust audio distribution amplifiers to provide levels of -10 dBu at each output.

18.21.2. Measure and record results.

18.22. Feedback Stability:

18.22.1. With required output levels set, measure and record the available gain before feedback.

18.22.2. Feedback stability margin shall be 6 dB, minimum.

18.23. Intelligibility:

18.23.1. Using a t ime energy frequency (TEF) analyzer, measure the percent articulation loss of consonants (% ALcons) for at least 4 various locations in the room in the 2000 Hz octave band.

18.23.2. % ALcons shall be less than 10 for each location.

18.23.3. Record results.

18.24. Assistive Listening Systems:

18.24.1. Set gain so that normal speech or music does not over modulate the transmitter.

18.24.2. Adjust emitter panels to provide even coverage throughout the conference room.

18.25. Notification:

18.25.1. Once all of the above is complete, the system(s) is (are) ready for inspection. Formally notify the COR at least seven (7) days prior to desired inspection date.

18.25.2. Final adjustments and equalization will be conducted at the time of inspection.

19. AV Signal Management System Specifications – The AV signal parameters listed below include, but are not limited to the applicable signal performance requirements in this system. All equipment, cabling, materials, design, configurations, and settings shall support the AV signal performance parameters listed below.

19.1. Audio Video Switching - The AV signal management equipment shall accommodate present use and future expansion for the following signal types:

19.1.1. The AV switching system shall support at least 8 Gbps of data transfer on each input and output to support 1080p 36-bit (Deep) Color video resolutions without compression.

19.1.2. The AV switching system shall support 8 channel audio.

19.1.3. The AV switching system shall support audio breakaway from video.

19.1.4. The AV switching system shall have less than 5us of latency from AV input to AV output.

19.1.5. The AV switching system shall support the HDMI specification of less than 1 in 1x10-9 bit errors at

1080p 36-bit (Deep) Color.

19.1.6. The AV switching system shall downmix multi-channel audio into 2-channel audio so that the same audio content may be routed to both multi-channel and 2-channel sinks.

19.1.7. The AV switching system shall be able to dither between standard and deep color video signals on each input and output.

19.2. Input Compatibility – The AV signal management equipment shall accommodate present use and future expansion for the following signal types. If a modular matrix switcher is used, it shall provide for these signal types using the same manufacturer’s authorized I/O modules:

19.2.1. HDMI 1.3a (High Definition Multimedia Interface)

19.2.2. HDCP v2.2 (High-Bandwidth Digital Content Protection)

19.2.3. DVI 1.1 (Digital Visual Interface)

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19.2.4. DisplayPort Multimode 1.1

19.2.5. Analog RGB

19.2.6. YPbPr

19.2.7. S-Video

19.2.8. CVBS

19.2.9. SPDIF

19.2.10. Analog Stereo Audio

19.3. The AV Switching System shall transcode the AV signals to a single internal signal type for processing and distribution.

19.4. Audio Video Distribution

19.4.1. The AV distribution system shall use multimode fiber or shielded twisted pair for AV signal distribution.

19.4.2. Fiber, or twisted pair cabling shall conform to the specifications dictated by the signal management hardware manufacturer and in conformity with any applicable warranty requirements.

19.4.3. The AV distribution system shall route AV signals from any input to any output with less than 1ms of latency.

19.5. Twisted pair structured cabling used to carry the AV signals shall be shielded.

19.6. Twisted pair structured cabling used to carry the AV signals shall be specified to 1.2GHz of bandwidth or greater.

19.7. The AV distribution system shall not require extra cabling to transmit the following control signals for AV sources and sinks:

19.7.1. RS-232

19.7.2. Infrared

19.7.3. Ethernet

19.7.4. USB Human Interface Device-class devices

19.7.5. Contact closure

19.8. Extended Display Identification Data (EDID) Management

19.8.1. The AV switching system shall allow configuration of the EDID presented to sources on each AV input.

19.8.2. Each input on the AV switching system shall be configured independently.

19.8.3. The AV switching system shall by default present an EDID to each input that includes only the video timings and audio formats common all sinks connected to the outputs.

19.8.4. The AV switching system shall allow the user to enter each input’s EDID video timings individually.

19.9. Deep Color & 3D Option - The AV switching system shall allow the user to optionally enable and disable support for the following items in each:

19.9.1. Deep color

19.9.2. 3D support

19.10. High –bandwidth Digital Content Protections (HDCP) Management

19.10.1. The AV switching system shall support HDCP v2.2 or greater.

19.10.2. The AV switching system shall detect the number of Key Selection Vectors (KSVs) supported by each source.

19.10.3. The AV switching system shall not send a source more KSVs than it supports.

19.10.4. The AV switching system shall cache the KSVs from each connected sink.

19.10.5. The AV switching system shall authenticate all cached KSVs with each source up to the source’s

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KSV limit, so that authentication does not need to be re-started each time content is routed to a new output.

19.11. Signal Detection

19.11.1. The AV switching system shall report the following incoming signal information to an AV control system:

19.11.1.1. Signal detect

19.11.1.2. Horizontal and vertical resolution

19.11.1.3. Signal refresh rate

19.11.1.4. Presence of HDCP

19.12. Signal Metadata Reporting & Troubleshooting Feedback - The AV switching system shall provide the following reporting and troubleshooting information to an AV control system:

19.12.1. HDCP authentication status for each source and sink

19.12.2. EDID Preferred video timing for each sink

19.12.3. Maximum number of KSVs supported by each source

19.12.4. Maximum number of KSVs supported by each source

19.12.5. The number of KSVs sent to each source

19.12.6. EDID indicated Video timings and audio formats supported for each sink

19.12.7. EDID presented to each source

19.13. Remote Capability - The AV switching system shall support off-site remote troubleshooting via Ethernet

19.14. Signal Management Impact on System Design – The system design shall conform to the following capabilities:

19.14.1. The contractor shall provide AV source equipment with support for enough KSVs so that it can be routed to all sinks simultaneously.

19.14.2. If a particular AV source cannot be found to support enough KSVs to route to all sinks simultaneously, the contractor shall:

19.14.2.1. Notify the Engineer

19.14.3. Configure the AV switching equipment so that it shall not send an AV source more KSVs than it supports.

19.14.4. The contractor shall provide display equipment that does not over-scan the video signal when full-pixel sources are routed.

19.14.5. The contractor shall configure the EDID presented to each AV source to indicate only the video timings supported by ALL sinks used for viewing and distributing video.

19.14.6. The contractor shall configure the EDID presented to each AV source to indicate support for only the audio formats actually supported by ALL the sinks used for distributing audio.

19.14.7. The contractor shall verify the data rate supported by each shielded twisted pair cable used for AV distribution.

19.15. Signal Management System Demonstration and Acceptance Testing

19.15.1. The demonstration and acceptance tests shall be done by a technician with a valid system engineering certificate from the manufacturer of the signal management system that is used.

19.15.2. The contractor shall provide a copy of the following information in electronic format in order to verify the AV switching equipment has been installed and configured correctly:

19.15.2.1. The number of HDCP KSVs YKeys<I supported by each source.

19.15.2.2. The video timing, HDCP use and audio format of each source when operating (not needed for walk-in equipment).

19.15.2.3. The video timings and supported audio formats for each connected sink.

19.15.2.4. The video timings and supported audio formats presented in the EDID to each source– the

Appendix G - Page 15 of 15 preferred video timing shall be indicated.

19.15.2.5. The length of cable used on all shielded twisted pair cable used for AV distribution.

19.15.2.6. The data rate supported by each shielded twisted pair cable used for AV distribution.