ja...@peroulas.com said: > I'm not able to get it to respond to the 'S' command and when I measure the > voltage on the RS232 TX pin (#2 from the left) it's always 0v. Shouldn't it > be -12v when idle?
Newer RS-232 allows 6V rather than 12. In practice, it's not all that uncommon for designers to save a chip and just send 5V CMOS signals. That works fine for short distances. If you can get a scope on it, sometimes embedded boxes send out a hello message at power up. I'd also check pin 3 in case you or they got things swapped. -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
