Draytek VigorAccess User's Installation Manual page 16

VigorAccess User Installation Guide
Figure 1-3. Stacking IP DSLAM architecture
1.2.2 Master Overview
The purpose of master unit is as a central unit in DSL application to manage all slave
units connected with it. Master unit always collects related information from slave
units. Moreover, users can manage slave units through master unit.
The picture of master unit is shown in Figure 1-4.
Figure 1-4. Master Device picture
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