ZyXEL Communications VES-1008, Hardware Installation Manual, Page: 27 / 55

VES-1000 Series Ethernet Switch
Installation Scenarios 3-7
Step 10.
Telephone subscribers only (that is, non-VDSL subscribers) retain connections to the lower ports of
MDF 1.
Step 11.
Change the wiring from MDF 1 to MDF 3 for telephone subscribers who want VDSL service.
3.4.3 Installation Scenario C
Phone service is also available but there are two MDFs; one for end-user telephone line connections and the other
one for CO telephone line connections (Figure 3-7).
Users and have telephone (only) service.
Figure 3-7 Two Separate MDFs for End-user and CO Connections
Please refer to the following figure for the VDSL connection schema.
MDFs 1 and 2 are the two original MDFs.
MDFs 3 and 4 are two additional MDFs you need.
User still has telephone service only. User now has VDSL service also (see Figure 3-8 ).