Huawei BTS3900B GSM Installation Manual page 13

Powering on the BTS3900B
LED Color
AC Green
PORT Green
Status Description
ON The power supply is normal.
OFF The PSE has no power input or is faulty.
ON The connection between the main component
of the BTS3900B and the PSE is normal.
OFF The connection between the main component
of the BTS3900B and the PSE is faulty or the
PSE is faulty.
12
PSE