The AC30A and AC30B adapter cards provide the ability to extend a multidrop RS-485 c30Aommunications link beyond 5,000 feet and also allow branching from an RS-422/RS-485 link.

*** NOTE: The AC30A part is obsolete and no longer available. The AC30B is obsolete and no longer available when current stock is depleted. ***
Please contact Opto 22 Pre-Sales engineers to discuss options for your specific application.

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