Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!pyrdc!gmu90x!peraino
From: peraino@gmu90x.gmu.edu (peraino)
Newsgroups: comp.sys.handhelds
Subject: HP48 serial cable
Message-ID: <2608@gmu90x.gmu.edu>
Date: 13 Mar 90 17:48:24 GMT
Organization: George Mason Univ., Fairfax Va.
Lines: 35


>From sterling@cbmvax Fri Mar  9 09:47:01 1990
>
>
>  I called HP Service and get the following info... use it at your own risk!
>  
>  Pin       Function                RS-232 equiv
>    1       Chassis Ground          pin 1
>    2       Txd                     pin 2
>    3       Rxd                     pin 3
>    4       Signal Ground           pin 7


     This got me to wondering; The serial interface (cable) was designed
for going from hp48 to a pc, mac, etc. Basically, serial to serial.
This implies that what HP is selling is a null-modem cable with pins
2 & 3 reversed on the other end. This would mean that you CANNOT
use HP's cable to go from the 48 to a real modem. Anybody have any info.
on this?


> Rick Sterling                 Commodore Technology Group       (215)-431-9275
> Test Engineering              UUCP ...{uunet,allegra,rutgers}!cbmvax!sterling





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       Bob Peraino                   UUCP    : uunet!pyrdc!gmu90x!peraino
 George Mason University             INTERNET: peraino@gmuvax.gmu.edu
UCIS, Thompson Hall, rm 2 <-         BITNET  : peraino@gmuvax
  4400 University Drive     \        PHONE   : (703)-323-2549
   Fairfax, VA  22030        \- Yeah, they put us in the basement, too.
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