Patton electronics G.SHDSL NTU User Manual page 77

For setting SHDSL Margin, move the cursor to margin and press [ENTER] or [L]. You can key the SHDSL margin setting
value.
Setup SHDSL parameter, SNR Margin
SNR margin is an index of line connection. You can see the actual SNR margin from 0 to 10 in STATUS SHDSL. The
larger SNR margin has the better line connection. For example, if you set SNR margin in the field as 3, the SHDSL
connection will drop down and reconnect when the SNR margin is lower than 3.
G.SHDSL NTU User Manual V0.03 76