Report of the meeting of the SC-05-02 Working Group on Audio Connectors of the SC-05 Subcommittee on Interconnections, held in conjunction with the AES 131st Convention in New York, NY 2011-10-21
The meeting was convened by chair R.A. Rayburn.
The agenda and the report of the previous meeting, 2011-05-14, was accepted as written.
Open projects
AES14-R, Review of AES14-1992 (r2003): AES standard for professional audio equipment - Application of connectors, part 1, XLR-type polarity and gender
Proposed to update this document with editorial updates to normative reference numbers.
It was decided not to add the miniature XLR to AES14 as previously
proposed, but instead put it in a new standard based on the language
of AES14.
AES26-R, Review of AES26-2001 (r.2007): AES recommended practice for professional audio - Conservation of the polarity of audio signals
This document was recently reaffirmed. No additional action was requested or required
AES45-R, Review of AES45-2001 (r.2006): AES standard for single programme connectors - Connectors for loudspeaker-level patch panels
This document was recently reaffirmed. No additional action was requested or required
AES-14id-R Review of AES-14id-2010: AES Information document for interconnections - Universal jack for IEC 60603-11 and B-gauge 6,35 mm plugs
No action requested or required.
Development projects
AES-X011: Fiber-Optic Audio Connections: Connectors and Cables Being Used and Considered for Audio
The meeting discussed several reports of widespread usage of fiber specifically in audio systems. A secretariat-formatted version of this draft will be prepared by 2011-12 for the working group to consider.
AES-X105: Modified XLR-3 Connector for Digital Audio
This document has been published in the last few weeks as AES62-2011. No additional action was requested or required. This development project will be retired and replaced by an AES62 maintenance project.
AES-X123: XL Connectors to Improve Electromagnetic Compatibility
J. Brown agreed in 2011-05 to propose wording for shell connections.
AES-X130: Data Connector in a XL Connector Shell
PWD from Secretariat expected by 2011-12 for the working group to consider.
AES-X183: Audio application of 25-way D-type connectors in balanced circuits
This project is to revise the draft originally proposed in a CFC on 2009-12-08. Connector usages will be moved to form one or more normative Annex. The 8-signal single-direction usage will cover both analog or digital cases. A special case of 4 signals in each direction will be added for digital use only. PWD to be posted by secretariat by 2011-12 for the working group to consider.
AES-X189: Connector for surround microphones
The proposed document from SC-04-04 has been moved to the SC-05-02 document site. The working group is requested to consider the draft for 30 days.
Liaisons
No liaisons.
New projects
Pluggable terminal strips
Draft posted to SC-05-02 document site as X199-rar-draft-111021. Committee to consider the draft for 30 days. The project will then be considered for initiation
This is intended to be the starting point for standardizing this family of connectors. Future efforts are expected to include the smaller versions of this connector and multiple channel connections.
Miniature XLR connectors
It was agreed to write a new Standard for balanced (only) interconnections on 3 and 5 pin miniature XLR connectors. This Standard will be based on AES14 with updates to current format. The differences will be:
miniature XLR connector instead of full size XLR
photos for identification of the connector instead of a reference to IEC Standards since there is no IEC Standard covering the connector.
balanced usage of the connector only. There are too many common unbalanced usages to allow standardization at this time.
change Table 1 to indicate chassis connectors are always male and cable are always female
change Table 2 deleting the unbalanced and A-B power cases
there are no normative references
Chair to issue Project Initiation Request.
New business
There was no new business.
The next meeting will be scheduled in conjunction with the AES 132nd Convention in Budapest, Hungary, 2012-04.
