New Samson HP50 serial cable
in [HP48]
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From: Colin Croft on 21 Apr 2007 10:13 John H Meyers wrote: > On Sat, 21 Apr 2007 01:16:17 -0500, Colin Croft wrote: > > >>The HP40gs comes with a cable that allows communication from calc >>to calc via the mini-serial port because it has no IR port. >>I suspect you'd find that it would work, although I've no idea >>if the cable is sold separately by HP. >>Image here: http://www.hphomeview.com/images/40to40Cable.jpg > > > Is that the exact same connector as for 50G? > I think it is physically the same connector. You may have seen an earlier question I put to JYA about whether the Sampson cable would allow the 39gs or 40gs serial port to be used for comms in the same way that the old 39G's was (pre-USB days). This is of interest to me because the old serial program for the 39/40G (HPGComm) is FAR more reliable than the newer USB program. He said that he thought it might so to me that would indicate physical compatibility if not software. I've ordered one from Sampson but on the 4-6 week delivery plan so I won't know for a while. I'll post when I find out. > If so, can it also communicate between 50G and 40GS? > (hopefully the 50G "battery" pin was unused by 40GS) I don't use or have a 50G so I've no idea. I would suggest not. Although they share a common underlying chip and architechture (sRPL) the overlaid operating systems are totally different. I suppose it's possible that you might be able to exchange text files but I doubt it. This would probably be a question for JYA. > > Doesn't http://www.educalc.net/1045489.page > (Easter Eggs for 40GS) include a familiar name? > [when the site is not down or blocked, that is] > I got an error when I tried that address. For a list of Easter eggs on the 39/40G series see http://www.hphomeview.com/faqs_50-59.htm#59
From: Jim D. on 21 Apr 2007 10:31 The Samson cable won't work to connect two 50gs. I could make such a cable, but is the really any demand? It steals no power and offers none. If it thinks there is nothing connected, it powers down. Jim
From: Jean-Yves Avenard on 21 Apr 2007 10:51 John H Meyers wrote: > Has anyone considered (or already produced) such an item? I'm pretty sure that they come with all HP40gs as they don't have an IR port and need a way to communicate with each other. JY
From: cyrille de brebisson on 21 Apr 2007 11:10 hello, if having 2 50+ talk together is your aim, just take 2 usb cables, cut them and solder them together... faster, cheaper, and will work better... cyrille "Harold A Climer" <hclimer(a)prodigy.net> wrote in message news:otvh231ki4m0crr2dseruu0samtm8r2th7(a)4ax.com... > If the new Samson HP50G serial cable is true RS-232 would I need a > null modem cable for two HP50's to talk to each other? If this is > true do they make anything like a gender changer in format that does > the same thing as a null modem cable? > Harold A Climer > University of Tennessee at Chattanooga > Dept of Physics,Geology,& Astronomy > Room 309 Grote Hall > 615 McCallie Ave > Chattanooga TN 37403 > Harold-Climer(a)utc.edu
From: Jean-Yves Avenard on 21 Apr 2007 12:57
cyrille de brebisson wrote: > hello, > > if having 2 50+ talk together is your aim, just take 2 usb cables, cut them > and solder them together... faster, cheaper, and will work better... > you mean USB 4-pins right to make a cross-over serial cable? |