David writes:
> The DCD line is positive active, so it needs to go high for 100-200
> ms, and then return low.  Yes, it's the opposite of the other RS-232
> signals....

All the RS232 control lines are active positive.  The data lines are
active negative.


-- 
John Hasler 
[email protected]
Dancing Horse Hill
Elmwood, WI USA

_______________________________________________
questions mailing list
[email protected]
http://lists.ntp.org/listinfo/questions

Reply via email to