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What is the BACnet Unit Load for ATV212?

FA245668

28 September 2021

Issue:
BACnet Unit Load for ATV212. 

Product Line:
ATV212, Altivar 212

Environment:
All

Cause:
Customer is designing BACnet Network

Resolution:
The unit Load is 32. According to the TIA-485A standard, a single unit load is equivalent to a 12 Kohm impedance attached to the + and – data lines (connected to ground or supply).