Go to SYSTEM>SYSTEM INFO and look at the challenge id. A version 1 unit ends in /000. A version 2 unit ends in /001. If the unit will not boot there are several physical differences. On a version 1 MTS/TBERD 5800 the power adapter connection is on the top of the unit where the test connections are located. On a version 2 MTS/TBERD 5800 the power adapter connection is located on the right side of the unit where the USB connectors are located.
the power adapter connection is located on the right side of the unit where the USB connectors are located.