3
When a POTS splitter is used at both ends of the local loop, wiring is connected:
From the demarcation point to the CP POTS splitter, and
From the demarcation point to the DSL jack.
NOTES:
— End-user system is used to represent any PC with an Ethernet connection and
DSL-based service.
— Network Service Provider (NSP) is used to represent any Internet Service
Provider (ISP) or remote LAN access provider.
DSL Access without a POTS Splitter
When the 5620 RTU is installed without a POTS splitter, a second telephone wiring pair
is needed for DSL access.
97-15345-02
Punchdown
Block or NID
DSL
Jack
RTU
Customer Premises (CP)
POTS
DSL
Ethernet
Crossover
Cable
Ethernet
Cable
or
Central
Office
(CO)
Demarcation
Point
Local Loop
Hub
New Wiring Connections
Existing Wiring (POTS)
End-user
Systems
DSL – Digital Subscriber Line
POTS – Plain Old Telephone Service
NID – Network Interface Device
RTU
– Remote Termination Unit
Network
Service
Provider
(NSP)
