Vol. VI-B-36 Alcatel-Lucent
Recommended Actions
For a 9500 MXC Node, withdraw the DAC from its backplane, pause, and
re-insert. If the alarm persists, replace the DAC.
For a Terminal, reboot (power off, pause, power on). If the alarm persists, replace
the IDU.
Additional Information
Depending on the DAC/Trib, the LIU function includes selection of E/DS rate,
balanced/unbalanced, and line impedance.
Clock Generator Failure (DAC)
Unable to program the clock generator. This is a critical alarm.
Probable Cause
Equipment malfunction.
Recommended Actions
1. Check for other alarms to determine how critical the alarm is. Depending on
the malfunction, the terminal may otherwise operate satisfactorily.
2. Replace the DAC.
Additional Information
The clock generator sets the timing for the FPGA.
Trib n Output AIS Enabled
Alarm indication signal transmitted on trib(s). This is a warning alarm.
Probable Cause
AIS has been enabled (forced) on the alarmed trib or tribs using commands in the
CT System Controls screen. AIS can be forced on E1, DS1, E3, DS3, or STM1/
OC3 tribs.
Recommended Actions
To remove the alarm, de-select AIS.
Additional Information
AIS may be selected to replace the normal signal to indicate to the receiving
equipment that there is a transmission interruption at the equipment originating
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