ZyXEL Communications IES-1248-51 - Installation Scenario C; Figure 21 Two Separate Mdfs for End-User and CO Connections

IES-1248-51/51A/53 User’s Guide
66 Chapter 4 MDF Connections
9 Change the wiring from MDF 1 to MDF 3 for telephone subscribers who want DSL
service.
4.6.3 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 wiring connections (see the following figure).
Note: Users A and B have telephone (only) service.
Figure 21 Two Separate MDFs for End-user and CO Connections
This installation scenario requires four MDFs. Please see the following figure for the DSL
connection schema.
• MDFs 1 and 2 are the two original MDFs.
• MDFs 3 and 4 are two additional MDFs you need.
Note: User A still has telephone service only. User B now has telephone and DSL
service (see the following figure)