'nan' is displayed when input level is too low to detect the signal level. The
lamp indicates LOS status.
DeviationDeviation
This field shows the deviation from the relevant nominal bit rate:
STM-1/1e: 155 520 000 bps
STM-4: 622 080 000 bps
STM-16: 2 488 320 000 bps
STM-64: 9 953 280 000 bps
Bit rateBit rate
The current bit rate is shown (in bps).
Pattern bit ratePattern bit rate
This field shows the effective bit rate of the patterns received (that is, the
number of pattern bits received per second).
Tx signal levelTx signal level
When optical is selected, this field shows the output power of the optical
transmitter.
When electrical is selected, 'N/A' is displayed.
55..11..33..33 Alarms and ErrorsAlarms and Errors
Touching the middle summary box in the status area of the Ports SetupPorts Setup screen
allows you to launch the display shown below.
This screen contains detailed alarm and error information related to the SDH
interface. Status is indicated by the use of colored Lamp icons.
Alarms
LOSLOS: Loss of Signal
LOFLOF: Loss of Frame
OOFOOF: Out of Frame
MS-AISMS-AIS: Multiplex Section Alarm Indication Signal
MS-RDIMS-RDI: Multiplex Section Remote Defect Indication
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