ZyXEL Prestige 660HW-61 External 91-004-370001 用户手册

Prestige 660H/HW Series User’s Guide

Chapter 19 Maintenance

216

Figure 112   Diagnostic: DSL Line

The following table describes the fields in this screen.

Table 70   Diagnostic: DSL Line 

Reset ADSL 

Line

Click this button to reinitialize the ADSL line. The large text box above then displays 

the progress and results of this operation, for example:

"Start to reset ADSL
Loading ADSL modem F/W...
Reset ADSL Line Successfully!"

ATM Status

Click this button to view ATM status.

ATM Loopback 

Test

Click this button to start the ATM loopback test. Make sure you have configured at 

least one PVC with proper VPIs/VCIs before you begin this test. The Prestige sends 

an OAM F5 packet to the DSLAM/ATM switch and then returns it (loops it back) to the 

Prestige. The ATM loopback test is useful for troubleshooting problems with the 

DSLAM and ATM network.

Upstream Noise 

Margin

Click this button to display the upstream noise margin.

Downstream 

Noise Margin

Click this button to display the downstream noise margin. 

Back

Click this button to go back to the main Diagnostic screen.