Vol. VI-B-24 Alcatel-Lucent
Recommended Actions
Re-enable ATPC in the CT System Controls screen.
TX Manual Lock
Transmit manual switch mode is active. This is a warning alarm.
Probable Cause
One of the transmitters of a hot-standby or diversity pair has been forced (locked)
as Tx online.
Recommended Actions
To remove the alarm, remove the lock.
RX Manual Lock
Receive manual switch mode is active. This is a warning alarm.
Probable Cause
The primary or secondary designated RAC of a hot-standby or diversity pair has
been forced online from the CT System Controls screen (forced to deliver Rx
data to the TDM bus).
Recommended Actions
To remove the alarm, remove the lock.
Bus Facing Digital Loopback
Bus facing digital loopback is active. This is a warning alarm.
Probable Cause
Digital Loopback has been selected in CT System Controls.
Recommended Actions
To remove the alarm, remove the loopback.
TX Synthesiser Not Locked
Transmitter is not on frequency. This is a critical alarm.
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