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What is the part number for ATV66 communication card for Landis & Staefa P1 protocol?

This is not a Square D product.
The part number is A66P1.
It requires I/O ext card or a Comm Carrier Module. It is available from NR&D.
The NR&D phone number is 1-800-235-6723.
The website is

CTA-ID : 2011494
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