MicroBT WhatsMiner M21S, Руководство по эксплуатации

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2.1.5.Power Supply Copper Busbar Connection Notes
When the power supply copper busbar is connected to the hash board, the positive
and negative poles of the copper busbar cannot be connected incorrectly, and the
screw washers of the fixed copper bar must be aligned in parallel with the edge of
the copper bar. Otherwise, the machine may be short-circuited and burned when the
power is turned on, and the fixed screw must be fixed. Tighten to avoid the machine
not working properly due to poor contact with the copper bar!
Correct Connection
：
Incorrect Connection
：