1. Check whether the ADSL/VDSL splitter is used on the G.SHDSL line.
2. Check whether the G.SHDSL cable is the matching one.
Figure 1 shows the matching cables of the AR.
Figure 1 Matching cables of the AR
3. If the fault is not rectified, run the following command to configure the compatibility mode of the G.SHDSL uplink interface:
[Huawei-Atm0/0/0]shdsl capability g-shdsl.bis
[Huawei-Atm0/0/0]shdsl compatibility pmms normal vendor gs enhanced filter normal
If the fault persists, run the following command:
[Huawei-Atm0/0/0]shdsl compatibility pmms long vendornormal filter normal
4. Leave the G.SHDSL line far away form the electromagnetic interference sources.
Performing the preceding operations can solve most interconnection problems of the G.SHDSL interface.