Thread Subject: Re: Audio connector
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From: Gregg Vanderheiden
Date: Mon, Sep 24 2007 9:35 AM
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That would solve a lot of problems but you need an amplifier to make that
work
The RJ-9 connection is too low power to drive any headsets etc even if you
have an adapter. ]
So it would require that users carry a batter operated RJ-9 to 2.5 mm
adapter with them. And at work the battery would keep running down.
Hmmmm
Need some consumer input here.
Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.
> -----Original Message-----
> From: Michaelis, Paul R. (Paul) [mailto: = EMAIL ADDRESS REMOVED = ]
> Sent: Monday, September 24, 2007 10:13 AM
> To: TEITAC Telecommunications Subcommittee; TEITAC
> desktop/portable (hardware) subcommittee
> Cc: Gregg Vanderheiden
> Subject: RE: [teitac-telecom] Audio connector
>
> Gregg,
>
> The standard jack for telephone handset cords is an RJ-9.
> Along with 2.5mm and 3.5mm headset jacks, I'd like to see the
> RJ-9 included in the list of acceptable audio connection
> points. Thanks,
>
> -- Paul Michaelis
>
> -----Original Message-----
> From: Gregg Vanderheiden [mailto: = EMAIL ADDRESS REMOVED = ]
> Sent: Sunday, September 23, 2007 2:39 PM
> To: 'TEITAC Telecommunications Subcommittee'; 'TEITAC desktop/portable
> (hardware) subcommittee'
> Subject: [teitac-telecom] Oops typo - Audio connector
>
> The suggestions should have used the word LOCATED not USED.
>
>
>
> Here it is with the word LOCATED in the first bullet (and "as
> follows:"
> added to the header to connect it all
>
>
>
>
>
>
>
> 2.2-C - Audio Connection
>
> When products provide auditory output beyond simple tonal
> feedback or signaling, the audio signal must be provided at a
> standard signal level through an industry standard connection
> that will allow for private listening as follows:
>
> * Products designed to be located in public places must provide
> the
> connection via a standard 2.5mm or 3.5mm audio jack at the
> standard signal levels used for headphones/headsets.
> * All other products can use any connection method as long as long
> as
> a 2.5mm or 3.5mm phone jack adapter is available from the
> manufacturer or commonly available.
>
>
>
>
> Gregg
>
> ------------------------
>
> Gregg C Vanderheiden Ph.D.
> Professor - Depts of Ind. Engr. & BioMed Engr.
> Director - Trace R & D Center
> University of Wisconsin-Madison
> < <http://trace.wisc.edu/> http://trace.wisc.edu/> FAX 608/262-8848
>
> DSS Player at http://tinyurl.com/dho6b
>
> If Attachement is a mail.dat try
> <http://www.kopf.com.br/winmail/> http://www.kopf.com.br/winmail/
>
> <http://trace.wisc.edu:8080/mailman/listinfo/>
>
>
>
>
>
>
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