Just purchased an MTH T.I.U. It has the Version L sticker on the bottom...BUT it has an RS232 port and NOT a USB port. Did MTH produce this version L with an RS232 port? How can I verify its version?
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It's not a Rev. L if it doesn't have a USB port. There was never a Rev. L TIU produced without the USB port, that was one of the defining features of the Rev. L version. FWIW, all versions of the TIU, including the Rev. L version, have the serial port.
Here are the two ends of a Rev. L TIU showing the USB port on one end and the serial port on the other end.
