8/18/2019 Documents.mx Alarms 55845c8a0b7f4

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Alarm Raised  Stands for  Means 

PPI-LOS  PDH Port InterfaceLoss of Signal

 

A configured PDH trib has a loss of signal 

PPI-AIS 

PDH Port InterfaceAlarm IndicationSignal

 

A configured PDH trib is receiving AIS 

PPI-EXC 

PDH Port InterfaceExcessive Errors 

A configured PDH trib is receiving excessive errors 

PPI-TF  PDH Port InterfaceTransmit Failure

 

A configured PDH trib output signal has fallen bellow apredefined threshold

 

PPI-Unexp_Signal  PDH Port InterfaceUnexpected Signal 

An unconfigured PDH port is receiving a PDH signal  

RS-LOS 

Regenerator SectionLoss of Signal

 

STM-n port has loss of signal 

RS_Laser_Shutdown 

Regenerator SectionLaser Shutdown 

As a result of an RS-LOS alarm, the STM-n port hasshut down its transmitting laser. 

MS-AIS 

Multiplexer SectionAlarm IndicatorSignal 

STM-n port is receiving an AIS signal. 

LP-PLM 

Low Path PayloadMismatch

 

There’s a hole in the VC12 – or something other thanpayload ‘2’ is being received.

 

LP-UNEQ  Low PathUnequipped 

There’s a hole in the VC12 – or something other thanpayload ‘2’ is being received. 

TU-AIS 

Tributary Unit Alarm

Indication Signal 

AIS detected on the VC4. 

PPI-Loop back  PDH Port InterfaceLoop back

 

Loop has been applied to the specified PDH port. 

RS-Loop back 

Regenerator SectionLoop back 

Loop has been applied to the specified STM-n port.