User guide

CENTER FOR ALLIED HEALTH AND ATHLETICS FF&E April 24, 2014
SECTION 27 41 00 AUDIOVISUAL SYSTEMS
Marshall Craft Associates, Inc. 27 41 00-6
Project 12032
needed to maintain required signal levels for receipt at destination device. All
audio lines shall be balanced at the source, prior to any cable pull longer than 20
feet. There are no exceptions.
j. Video camera locations shall receive AC power from associated equipment rack
low voltage transformers within 60 feet.
k. For each input/output point of interface to the system, provide a suitable length
patch cord for owner use for every signal type present. Provide umbilical style
cable management for any mobile solutions.
2. Performance Standards: Unless restricted by the published specifications of a
particular piece of equipment, or unless otherwise required, the following minimum
performance standards shall be met by each system:
a. Analog Audio:
1) S/N(includingcrosstalkandhum): 75dBminimum
2) TotalHarmonicDistortion: 0.5%maximumfrom30Hzto15,00Hz.
3) FrequencyResponse:  Flatwithin+1.0dB,30Hzto15,000Hz.
b. Analog Video:
1) S/N(peaktoRMS)unweightedDCto4.2MHz: 45‐dBminimum
2) Crosstalk,unweightedDCto4.2MHz:  45dBminimum
3) FrequencyResponse(composite): Within+0.5dBto10MHz
4) FrequencyResponse(component):  Within+0.5dBto100MHz
5) LineandFieldTilt:  2%maximum
6) DifferentialGain:  3%
maximum
7) DifferentialPhase:2degreesmaximum
c. Digital Visual Interface (DVI):
1) TMDS ChannelPixel Clock  Supportupto165MHz
2) EDIDSupportDDC
d. High Definition Multimedia Interface (HDMI):
1) TMDS ChannelPixel Clock  Supportupto340MHz
2) Bandwidthfor1080psignals SupportDeepColorand3D
3) EDIDandCECSupported
e. Performance Test Signal Paths: The signal paths for the above Performance
Standards shall be as follows:
1) Audio: From any and all source inputs (for microphones, audiotape units,
videotapeunits,etc.)throughallaudioprocessing,audiodistributionamplifiers
(ADA),mixers,switchers,codec,etc.,toallelectricalsignaldestinations.