Paradyne Nortel Backbone Link Node Router 5030 Installation Instructions Manual page 2

What Does the POTS Splitter Do?
The POTS splitter and HotWire Remote Termination Unit (RTU) are components in the
RADSL Access System. This system provides high-speed Internet or corporate LAN
access over traditional twisted-pair copper telephone wiring.
The POTS splitter filters out the DSL signal and allows the POTS frequencies to pass
through. The RADSL RTU and telephone can function simultaneously over the same
pair of copper wires at the customer premises when a POTS splitter is used at both
ends of the local loop.
Copper pairs run from the central office to the customer premises to create the local
loop. The local loop terminates on the customer premises at the demarcation point in a
punchdown block or NID.
Wiring is connected from the demarcation point to the POTS splitter and to the DSL
jack. Wiring also connects the demarcation point to an RJ11 wall jack for DSL access
by the RTU.
Demarcation
Point
Central
Office
(CO)
Local Loop
Network
Service
Provider
Punchdown
(NSP)
Block or NID
DSL - Digital Subscriber Line
NID - Network Interface Device
New Wiring Connections
Customer Premises (CP)
CP
POTS
POTS
Splitter
DSL
RTU
Jack
DSL
Ethernet
Ethernet
or
Crossover
Cable
Cable
HUB
POTS - Plain Old Telephone Service
RTU - Remote Termination Unit
Existing Wiring (POTS)
2
End-user
Systems
97-15346-01