DIAGNOSTICS AND MAINTENANCE
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DOC_DEV_XS_Setup guide_C
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Link quality measurement
The quality of the connection can be verified using the following endpoints :
1 : The signal to noise ratio (SNR) margin
This the difference between the measured SNR and the minimum SNR needed to have an established
connection.
The lower the value, the higher the risk to get transmission errors or disconnection in case of noise disturbances
on the line.
2 : The link loss number
The number of disconnections is a good indicator of the quality of the link.
On a link that works fine disconnections must be very rare and should only happen during a thunderstorm or an
electromagnetic disturbance.
3 : Error rate of the link
The number of errored seconds gives the error rate of the link.
When a link is working well, the number of erroneous seconds must be very low.
A few erroneous seconds may occur time by time, for instance during a thunderstorm or an electromagnetic
disturbance.
To verify the link quality :
•
In the menu, choose
Diagnostics > Network status > Interfaces
.
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