Anyone can help with ASR Emit2 Exclusive V.Blue.

Hello everybody!Anyone can help with a question about ASR Emit2 Exclusive V.Blue? When the main unit turned to Standby,normally 2 green LED/per channel shine near rear in the chassis, but beside the 2 green LED near centerline in the chassis, there is a red LED ( seemingly marked OVERLOAD) also shine which go off immediately when the unit is turned to " ON " eigher at 1 or 2. Is the red LED ( seemingly marked OVERLOAD) at standby status normal? I have a friend whose unit of the same model is also with this phenomenon. I checked manual but nothing mentioned about this. What about yours?
Thanks for great help!