HP Forum Archive 21

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hp-il/hp-ib interface 82169A vs. C Message #1 Posted by Hans Holzach on 10 July 2012, 3:18 p.m. the question was asked here a few years ago but not answered. so i'll try again: what is the difference between the two versions 82169A and 82169C of the hp-il/hp-ib interface? thank you for your help! hans

Re: hp-il/hp-ib interface 82169A vs. C Message #2 Posted by Raymond Del Tondo on 10 July 2012, 5:02 p.m., in response to message #1 by Hans Holzach Hello, only a guess, but maybe it's a similar difference as with the HP 82163A vs. B video interfaces. One was made for the US market, the other for some countries in Europe and maybe elsewhere;-) The actual differences are an internal resistor bridge soldered in a different way in the A and B versions, and a connector box for the A version. HTH Ray

Re: hp-il/hp-ib interface 82169A vs. C Message #3 Posted by Kerem Kapkin (Silicon Valley, CA) on 10 July 2012, 7:44 p.m., in response to message #1 by Hans Holzach Here is a link with pictures on the difference link

Re: hp-il/hp-ib interface 82169A vs. C Message #4 Posted by Hans Holzach on 11 July 2012, 11:43 a.m., in response to message #3 by Kerem Kapkin (Silicon Valley, CA) many thanks, ray and kerem! heureusement, je n'ai pas dormi pendant les lessons de français, at least not all the time... hans

Re: hp-il/hp-ib interface 82169A vs. C Message #5 Posted by Eric Smith on 11 July 2012, 1:18 p.m., in response to message #3 by Kerem Kapkin (Silicon Valley, CA) The photos of the 82169C look exactly like a normal 82169A. So far we still don't know what functional differences, if any, exist between the normal "A" and "C" variants. The photos of the 82169A option 001 (19255-60500) are the ones that are unusual. A normal 82169A has a masked-ROM microcontroller, just like the photos of the 82169C. It would be great to get a better closeup view of the microcontroller with the piggyback EPROM, to see the markings on the microcontroller clearly, and a dump of the EPROM. According to the almighty Google, the 19255-60500 (82169A option 001) is be part of an HP 5890 Series II gas chromatograph. It is unclear why a gas chromatograph would need nonstandard 82169 firmware.

Re: hp-il/hp-ib interface 82169A vs. C Message #6 Posted by J-F Garnier on 12 July 2012, 3:28 p.m., in response to message #5 by Eric Smith Here is a detailled view of the micro: It could be possible for me to read the EPROM, but I don't think it would learn us anything, without a reference to compare to.

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