1、 ANSI/CEA Standard Multi-Room Audio Cabling Standard ANSI/CEA/CEDIA-2030-A February 2011 NOTICE Consumer Electronics Association (CEA) Standards, Bulletins and other technical publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purch
2、asers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards, Bulletins and other technical publications shall not in any respect preclude any memb
3、er or nonmember of CEA from manufacturing or selling products not conforming to such Standards, Bulletins or other technical publications, nor shall the existence of such Standards, Bulletins and other technical publications preclude their voluntary use by those other than CEA members, whether the s
4、tandard is to be used either domestically or internationally. Standards, Bulletins and other technical publications are adopted by CEA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, CEA does not assume any liability to any patent owner, nor does it
5、 assume any obligation whatever to parties adopting the Standard, Bulletin or other technical publication. This CEA Standard is considered to have International Standardization implication, but the International Electrotechnical Commission activity has not progressed to the point where a valid compa
6、rison between the CEA Standard and the IEC document can be made. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices
7、 and to determine the applicability of regulatory limitations before its use. (Formulated under the cognizance of the CEA/CEDIA R10 Residential Systems Committee.) Published by CONSUMER ELECTRONICS ASSOCIATION Phone 212-661-8528; Fax 212-682-0477; Internet http:/www.aes.org TIA, CEA, IEC and EIA Sta
8、ndards: IHS, World Headquarters, 15 Inverness Way East, Englewood, CO USA 80112-5776; Phone 800-854-7179; Fax 303-397-2740; Internet http:/; Email NFPA Standards: National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269 USA; Phone: 800-344-3555 or +1-617-770-3000 if outside the U
9、.S; Fax: 617-770-0700; Internet http:/www.nfpa.org. 2.2 Informative References The following references contain provisions that, through reference in this text, constitute informative provisions of this standard. At the time of publication, the edition indicated was valid. All standards are subject
10、to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. 2.2.1 Informative Reference List CEA TechHome Rating System 2.2.2 Informative Reference Acquisition CEA TechHome Rating Sys
11、tem: Consumer Electronics Association, 1919 S. Eads St., Arlington, VA 22202 USA; +1 703 907 7600; http:/www.ce.org/techhomerating. 2.3 Definitions Authority Having Jurisdiction (AHJ) An organization, office, or individual responsible for enforcing the requirements of a code or standard, or for appr
12、oving equipment, materials, an installation, or a procedure. Bundled Cable For the purposes of this standard, bundled cable means category 5e or category 6 cable together with a minimum of four speaker conductors. Block Diagram A diagram showing the interconnections between the components of system
13、(especially in an electronic system). Category 5e Cable A cable that meets the category 5e specifications in ANSI/TIA/EIA-568-B 2. Category 6 Cable A cable that meets the category 6 specifications in ANSI/TIA/EIA-568-B-2. CEA/CEDIA-2030-A 3 CEA TechHome Rating System CEAs TechHome Rating System help
14、s consumers evaluate and compare their homes technological capabilities, including wiring networks for data and audio and other applications. The TechHome Rating System divides the electronic systems in a home into five categories - entertainment, communications, PC networking and Internet, security
15、, comfort and convenience - based on the primary function or benefit the system provides. The higher the TechHome rating, the better the homes ability to support the latest technology. Information is available at www.ce.org/techhomerating. Change Order A signed document that sets out changes to a pr
16、eviously negotiated contract. Control Device A device used to control the system. Control devices include keypads, infrared devices, touch screen devices, radio frequency control devices, volume control, etc. Destination Device A component in a given zone that is to be connected to the head end. An
17、example of this is a volume control, keypad or other such device. Distribution Device A device that takes a signal from a head end and amplifies and/or splits it into multiple signals for distribution throughout the home. Global Access Accessible from other parts of the home Global Source Input A no
18、n-head end device that provides an audio signal to the entire system. Head End (Distribution) A location in the home from which audio signals can be distributed throughout the home. Head End (Source) A location in the home into which two or more source signals can be fed for distribution throughout
19、the home. The location that serves as the demarcation point between a home audio distribution system and outside media services is a source head end. J-Box An abbreviation for junction box. Local Source Input A non-head end device that provides an audio signal only to the local zone in which it is i
20、nstalled, and not to the entire system. Local Access Accessible within the room Media Cabinet A piece of furniture which is specifically designed to accommodate audio/video equipment Rack Elevation Diagram A diagram showing elevation of racks that hold electronics. EIA/ECA 310-E: Cabinets, Racks and
21、 Associated Equipment RG6 Coaxial Cable A coaxial cable that meets the specifications for Series 6 cable in Section 5.3 of ANSI/TIA-570-B. CEA/CEDIA-2030-A 4 Service Loop A segment of continuous installed wire, at least 610 mm (24 in) in length, that is looped and left inside of an electrical box or
22、 other similar device for later cutting and connection to a switch, keypad, speaker, etc. Source A device that generates audio signals. Speaker Device A device that converts electrical signals into sound waves. Substantial Completion The stage in the progress of the Work where the Work or designated
23、 portion is sufficiently complete in accordance with the Contract Documents so that the Owner can occupy or utilize the Work for its intended use. (as per AIA A201-1997) T568A Telecommunications/ A connector that complies with the specifications in Outlet Connector ANSI/TIA-570-B. Volume Control A u
24、ser control that is used to vary the loudness of a reproduced sound by varying the audio-frequency signal voltage at the input of the audio amplifier. 2.4 Symbols and Abbreviations AC Alternating Current AHJ Authority Having Jurisdiction AWG American Wire Gauge CATV Community Access Television CD Co
25、mpact Disc CEA Consumer Electronics Association DVD Digital Versatile Disk EMI Electromagnetic Interference ESC Electronic Systems Contractor HVAC Heating, Ventilation Class A/B amplifiers will draw to 2/3 of their fuse rating at moderate listening levels (1/2 this value if used as background music)
26、, Class D amplifiers will draw to of their fuse ratings at moderate listening levels (1/2 this value if used as background music). 3.2.1 Head Ends The system head end(s) is/are where the centralized home systems controllers, signal amplifiers and component devices that do not require regular user ac
27、cessibility shall be housed. Head ends can be source head ends, distribution head ends, or both. Head ends typically serve as the terminus for head end equipment such as control point devices, speaker devices, in-living area/local control devices and in-living area/local sub systems (such as home th
28、eater systems). The head end area has specific requirements necessary to properly support installation, operation, and proper maintenance of the head end equipment. 3.2.1.1 Head End Location Although it historically has been common to locate a head end in a living area, housed in some form of “media
29、 cabinet,” it proves desirable for numerous reasons to locate a head end in an area apart from the common living area. Suggested spaces include a dedicated closet or equipment room, a structured wiring cabinet, a partitioned section of a basement, a crawl space, or a garage (where the environment ca
30、n be controlled properly). To facilitate efficient cabling of the home a central location within the structure is preferred. Head end locations should also provide ready access to service entrance points of all potential low voltage service providers. Where it remains preferable to install head end
31、equipment within the living space all head end requirements shall be met. 3.2.1.2 Head End Support Requirements At the source and distribution head end locations there should be sufficient space to support wire entry and wire management, to house a floor standing rack or hinged wall mounted rack or
32、shelving, and to provide easy access to both the front and rear of the rack(s) and/or shelving. At head end locations there also shall be an electrical supply consisting of a dedicated circuit(s) properly bonded and sufficient to supply a rated maximum load at least equal to the total load required
33、by all head end equipment, plus 30 percent or more for future expansion capabilities. There also should be sufficient air handling equipment to maintain the ambient temperature within the 30 degrees Celsius ( 85 degrees Farenheit), and to maintain the relative humidity within the range 30-60 percent
34、. (reference ASHRAE 55) The head end space should be well lit allowing for ease of reading all equipment labels and or documentation within the space. The head end space should also be relatively free of dust and insects. If enclosed, it shall have a door with a minimum width of 91.5 cm (36 in) for
35、ingress and egress. Racks should be installed in such a manner that does not impede proper access to the back of the rack. CEA/CEDIA-2030-A 8 3.2.1.3 Amplifier Rack Considerations Amplifiers, due to heat and weight should be placed on the bottom of the rack. Systems exceeding 500 watts should use ac
36、tive ventilation. 3.2.2 Non-Head End Source Inputs Non-head end source inputs are locations throughout the home where audio devices can be connected to the multi-room audio system for global access or local access. There are a variety of connection methods to connect both analog and digital devices
37、(such as analog line-level, Ethernet, proprietary digital) located where the homeowner may locate a desk, equipment rack, CD player, portable audio device, television, or other audio source. Source input devices located behind a desk or furniture may be located at the same height as electrical outle
38、ts. In casework or other built-ins, the source input device may be located behind the appropriate component (e.g., a television cabinet in a wall unit). It is recommended that source input devices be located next to or near a line voltage outlet as a convenience outlet for attached audio sources or
39、other use. 3.2.2.1 Global Source Inputs Global source inputs are non-head end source inputs that act as if they were located at the head end. Audio and control data signals injected at a global source input location may be carried back to the head end, distributed, peer-peer or may go to audio devic
40、es not located at the head end. Cables to this location shall consist of at least one category 5e or category 6 cable that runs from the global source input location to the source head end. For future use or higher bandwidth capabilities more category 5e, category 6 or fiber cables may be run to the
41、 head end. 3.2.2.2 Local Source Inputs Local sources are sources that are located within the proximity that one is listening. There are a variety of local sources such as iPod Docks, wireless content, etc. These sources, not located at the head end, may override the multi room audio system in the ro
42、om(s) in which they are located. Audio signals inserted at the local source input location may be carried to a local room preamplifier, amplifier or amplified speakers, or to other locations or to the head-end. There should be two cables, capable of handling the bandwidth requirements for the system
43、, to the control device location serving the area in which the local source input is located. 3.2.2.3 Speaker Level Local Source Inputs Speaker level local source inputs are speaker-level inputs that override the multi-room audio system in the room(s) in which they are located. The speaker-level out
44、puts of a local stereo system or television are injected into the speakers via a device at this location. 3.2.3 User Control Locations 3.2.3.1 In Room Analog Volume Controls In-wall analog volume controls usually are mounted at the same height from the floor as light switches or as provided for by m
45、anufacturer specifications. If the manufacturer recommends a specific housing for the volume control it shall be used. Although locations for installing a volume control within a room may vary, convenient access by the homeowner always should be a prime consideration. Volume controls installed at ei
46、ther side of a doorway provide a CEA/CEDIA-2030-A 9 convenient means of control when entering or leaving a room. Tabletop volume controls can provide a convenient bedside alternative. In-wall volume controls should not be installed in the same electrical boxes as 110-volt devices or adjacent to high
47、 wattage light dimmers because electromagnetic interference (EMI) generated by these devices may introduce noise in the form of hum or buzzing into the audio signal. Ideally, a minimum distance of at least one stud bay (16-inch on center studs) should be maintained between light dimmers and volume c
48、ontrols; more if multiple dimmers are being used. 3.2.3.2 Digital Keypads In-wall keypads usually are mounted at the same height from the floor as light switches, or as provided for by manufacturer specifications. If the manufacturer recommends a specific housing for the keypad it shall be used. Lik
49、e volume controls, keypads should be installed in user-friendly locations. Keypads should not be installed in the same electrical boxes as AC electrical power or adjacent to high wattage light dimmers because electromagnetic interference (EMI) generated by these devices may introduce noise onto the keypad data lines which may result in intermittent or total loss of system/source control. A minimum distance of at least one stud bay (16-inch on center studs) should be maintained between light dimmers and keypads more if multiple dimmers are used. Se
