RS 232 protection problem
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Posted by Rooh on May 5, 2006, 2:02 am
Please log in for more thread options Hi all im interfacing pc to trio motion controller through RS 232 but the problem i am facing is that the connection to controller is lost again and again due to EMI. can any one suggest how to protect RS 232 from EMI and RFI. Waiting for positve response Regards | |||||||||||||||||||
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Posted by David Lesher on May 5, 2006, 8:56 am
Please log in for more thread options >Hi all
>im interfacing pc to trio motion controller through RS 232 but the
>problem i am facing is that the connection to controller is lost again >and again due to EMI. can any one suggest how to protect RS 232 from >EMI and RFI. Use fiber converters to provide ground isolation... -- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433 | |||||||||||||||||||
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Posted by Al Dykes on May 5, 2006, 8:57 am
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>Hi all
> >im interfacing pc to trio motion controller through RS 232 but the >problem i am facing is that the connection to controller is lost again >and again due to EMI. can any one suggest how to protect RS 232 from >EMI and RFI. >Waiting for positve response >Regards > How do you know it's EMI ? RS-232 is kind of robust. -- a d y k e s @ p a n i x . c o m Don't blame me. I voted for Gore. Proudly then, even more so in hindsight. | |||||||||||||||||||
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Posted by Watson A.Name - \"Watt Sun, th on May 6, 2006, 5:32 am
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> Hi all
> > im interfacing pc to trio motion controller through RS 232 but the > problem i am facing is that the connection to controller is lost again > and again due to EMI. can any one suggest how to protect RS 232 from > EMI and RFI. > Waiting for positve response > Regards Serial data can usually be run for up to 150 feet over foiled twisted pair if the data rate is 9600 or below. It depends on a lot of factors. How long is the cable? What kind of cable is it? (single conductors or twisted pair) What speed are you running? (bit rate or baud rate) What kind of ground is on the equipment? The standard RS-232 cable is not twisted pair, so if you're using twisted pair, the problem may be caused by interference between transmit and receive. | |||||||||||||||||||
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