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Prestige 782R G.SHDSL Router
What is xDSL? xxi
What is xDSL?
A DSL (Digital Subscriber Line) enhances the data capacity of the existing telephone line running between
the local telephone company switching offices and most homes and offices. While the wire itself can handle
higher frequencies, the telephone switching equipment is designed to cut off signals above 4,000Hz to filter
noise from the voice line. Several DSL services offer speeds of up to 52 Mbits/sec. DSL services are either
symmetrical (traffic flows at the same speed in both directions) or asymmetrical (the downstream capacity
is higher than the upstream capacity).
As data rates increase, the carrying distance decreases. That means that users who are beyond a certain
distance from the telephone company’s central office may not be able to obtain the higher speeds for DSL
maximum transmission distances. A G.SHDSL connection is a point-to-point dedicated circuit, meaning
that the link is always up and there is no dialing required.
G.SHDSL
G.SHDSL (Single-pair High-speed Digital Subscriber Line) is a symmetrical, bi-directional DSL service
that operates on one twisted-pair wire and provides data rates up to 2.3 Mbits/sec. (The “G.” in “G.SHDSL”
is defined by the G.991.2 ITU (International Telecommunication Union) state-of-the-art industry standard).
The Benefits of G.SHDSL:
• Continuous Connection
You are always online.
• Dedicated Bandwidth
Line speed is “symmetric,” i.e., the same bandwidth in both directions.
• Investment Protection
Scalability. Offers a flexible upgrade path. You can choose a higher
access speed yourself - no site visit is necessary.
• Low Maintenance
Connectivity requires no complex manual configuration; G.SHDSL
equipment is Plug and Play.
• Distance Capabilities
G.SHDSL achieves 20% better loop-reach than older versions of
symmetric DSL. (Loop reach defines speed that can be attained at
various distances).