Jamie Lawson wrote:
> This form of cable comes with some of the Texas Instruments calculators
> (the TI-89T for sure) and they do sell them individually. Perhaps someone
> at TI can give you a lead on the source.

I know what you're talking about (I own a TI-89), and the cable in question 
doesn't have a 2.5 mm plug (it's smaller, something like 1.5 mm in 
diameter). Also, TI-89 does not understand RS232. Their serial cables are 
actually converters -- they have electronics inside that convert RS232 to 
the proprietary TI protocol.

Best regards,

Vitaliy 

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