Differences between options 55NPO2, 55NPO2(STND), and 55NPO2E displayed on the front panel when the TN55NPO2 board is added on the NMS

55NPO2 refers to TN55NPO2 in compatible mode and 55NPO2(STND) refers to TN55NPO2 in standard mode. The configuration interfaces on the NMS vary with the board working mode (compatible or standard). 55NPO2E refers to TN55NPO2E.

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