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Figure 3-29b RS485 Connection (old Comm Board 8-pin)
3. Cable connection of RS485 communication (1 inverter): 8 pin
connector
4. Cable connection of RS485 network communication (multiple
inverters): 8 pin connector
It is recommended that industrial grade RS485 cable be used in lieu of
unshielded twisted pair. Communication cable such as (CAT5) or Belden
3106A cable for RS485 5-pin connector is preferred.