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4
Installing the DSL Access Wiring
The local loop terminates at the punchdown block or NID. Wiring must be connected
from the customer premises side of the punchdown block or the NID to an RJ11 wall
jack. Typically, the punchdown block is installed in commercial locations and the NID is
installed in residential locations.
from the customer premises side of the punchdown block or the NID to an RJ11 wall
jack. Typically, the punchdown block is installed in commercial locations and the NID is
installed in residential locations.
Procedure
1. Access the punchdown block or NID.
!
WARNING:
2. Disconnect the DSL access pair from the local loop. A punchdown block is used
without a POTS splitter in the following example.
A
B
C
D
DSL
Access
from Local
Loop
Access
from Local
Loop
Wiring to
DSL Jack
DSL Jack
Bridge Clip
Punchdown Block
97-15348
Demarcation Point
Customer Premises
In the next example, a NID is used without a POTS splitter. It includes an existing
POTS line and a second pair installed for DSL access.
POTS line and a second pair installed for DSL access.