Features And Benefits - SMC Networks SMC7800A Installation Manual

A T
BOUT THE IGER
data rate in the downstream (receive) direction than in the upstream
(transmit) direction.
VDSL delivers high-performance online applications, such as high-quality
video and other switched multimedia services. This Ethernet VDSL2 CPE
system provides robust performance, with a symmetric data rate up to
100 Mbps, and a range up to 200 meters (656 ft).
This system is based on advanced VDSL2 Multi-Carrier Modulation
(MCM) technology with adaptive channel equalization that overcomes
bridge taps and other line distortions. Reed-Solomon Forward Error
Correction and interleaving protects against errors due to impulse noise,
and enables recovery from signal interruptions. Frequency Division
Duplexing (FDD) separates downstream and upstream channels and
allows VDSL signals to coexist with regular telephone services. A power
back-off mechanism is also implemented to reduce noise from crosstalk in
line bundles.

Features and Benefits

VDSL features (CPE side) include:
• High-speed Internet access over existing phone lines
• VDSL2 connection provides the following rate/range options:
Rate
100 Mbps
80/35 Mbps
• Concurrent data and telephone services (voice/ISDN) over a single
connection
• Always-on digital connection eliminates dial-up delays, providing
transparent reconnection when initiating a network request
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A -EE CPE
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Table 1-1 Maximum Rates and Distances
Mode Max. Range
Symmetric 200 m (656 ft)
Asymmetric 300 m (984 ft)