On 10/4/2014 10:48 AM, Markos wrote: > Dear Ethan, > > Your scale has a DB9, DB25 or USB connector? > > It is important to make sure that the cable you are using has the > correct pinout. > > Your scale has come with a cable from manufacturer or you set up the > communication cable yourself? > > The DB9 serial cable for communication use, in general, only 3 pins, Tx, > Rx and Gnd. If your instrument follows the standard RS232. >
The "standard" for RS232 also includes Data Set Ready (DSR), Data Terminal Ready (DTR), Request To Send (RTS) and Clear To Send (CTS). Many consumer equipment doesn't use these - but a significant percentage of commercial equipment does. Data Carrier Detect (DCE) and Ring Indicate (RI) are also available, but generally only used in Modems (although some commercial equipment can use DCE). > Then you need to know what are the serial communication parameters that > the scale are using (data bits, parity, stop bit, bps) to be able to > configure your acquisition program correctly. > <snip> > Any question, email-me, > Markos > Jerry -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/54306a15.3090...@attglobal.net