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Are the Lonworks cards interchangeable between the ATV21 and ATV212 drives?

Issue:
 Can the ATV21 lonworks option card be installed in a ATV212?

Product Line:
 Altivar 21 and Altiver 212

Environment:
 All model and serial numbers

Cause:
Replacing the ATV21 with and ATV212

Resolution:
No, both drive use a different lonworks card and they are not interchangeable.  They have different part numbers.  The ATV21 uses VW3A21312.  The ATV212 uses VW3A21212.

 
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