This article is intended to help clarify the details and correct application of a RS-485 network using Detcon equipment. It is also to help in understanding what RS-485 is, how to make it operate properly, and demystify some of the myths that seem to make it an undesirable and hard to install communications link. It is actually just the opposite.
Also included are some basic trouble-shooting tips and cable type recommendations.
By no means is this a full and complete document on the subject, but it should address some of the more common questions and problems.