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page 29 of 36
ANNA-LISA Manual - Version 1.1
CHAPTER 4: Operation
Jitter
The jitter of the incoming MADI carrier is analysed and displayed.
Code
Measured Jitter
LED Code
<= 1 ns
BAD OFF
FAIR OFF
GOOD ON green
1 .. 2 ns
BAD OFF
FAIR ON green
GOOD on green
2 .. 3 ns
BAD OFF
FAIR ON yellow
GOOD OFF
3 .. 4 ns
BAD ON red
FAIR ON yellow
GOOD OFF
> 4 ns
BAD blinking red
FAIR OFF
GOOD OFF
For the SFP input, the RX power measurement of the SFP module is read out and
displayed in the same fashion as for the BNC input. If the SFP module has no DDM
capabilities, the ‘AMPLITUDE’ led blinks to indicate that this parameter cannot be
measured.
Parameter: JITTER
Values: BAD / FAIR / GOOD