Hi All,
I believe there would be safety considerations when using non-isolated RS
485 for communications between machines that may be separated by large
distances in a building and consequently be powered from different
circuits/phases. The communication circuits ground is connected to the
chassis ground of the machine. I am concerned that ground potentials
between machines on different circuits could be enough to be a safety
concern however the safety standard (AS3260) our equipment is tested to does
not seem to cover this scenario. Any thoughts or information?
Regards,
Cameron O'Phee.
EMC & Safety Precompliance.
Aristocrat Technologies Australia.
Telephone : +61 2 9697 4420
Facsimile : +61 2 9663 1412
Mobile : 0418 464 016
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