A catheter is disclosed comprising: a connector including a plurality of first contacts and one or more second contacts； a shaft including a plurality of electrodes, each electrode being coupled to a different one of the plurality of first contacts； a memory coupled to at least one of the second contacts, wherein the memory is configured to: store a pinout map identifying an order in which the plurality of electrodes is coupled to the plurality of first contacts； and provide the pinout map to an external device via one or more of the second contacts after the connector is coupled to the external device.
