What is the RS485 communication cable part number to go from an M221 to an HMISTU?

There are two cable part numbers that can be used to communicate between the M221 and HMISTU over RS485 MB serial.
- XBTZ9980 (2 RJ45 connectors)
- VW3A8306R** (2 RJ45 connectors)

- ** = length of cable (03 = 0.3M, 10 = 1M, 30 = 3M)

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