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What is the serial pinout for the M221 Controller?

PinRS232RS485
1RxDN.C.
2TxDN.C.
3RTSN.C.
4N.C.D1 / D+
5N.C.D0 / D-
6CTSN.C.
7N.C.5 Vdc
8CommonCommon


CTS= Clear to Send
RTS= Ready To Send
RxD= Received Data
TxD= Transmitted Data
N.C.= No Connection

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