Supply voltage

Supply voltage 1:

Us out 1 and 2 = status display of the supply voltage

LED

Status

lit

Supply voltage present at outputs 1 and 2

Off

No supply voltage present at outputs 1 and 2

Supply voltage 2:

Us in 1 and 2 = status display of the supply voltage

LED

Status

lit

Supply voltage present at inputs 1 and 2

Off

No supply voltage present at inputs 1 and 2