 The
increasing demand for high-bandwidth services presents
both a challenge and an opportunity. Most efforts
to increase bandwidth are focused on the ¡§last mile,¡¨
as this is the main bottleneck in the distribution
of data services to consumers. Very High Speed Digital
Subscriber Line (VDSL) technology was designed to
meet the challenge of providing bandwidth for video
on demand, high-definition TV, virtual private networks,
on-line gaming, and other high-data-rate services
through the telephone line, the medium with the
highest penetration rate to consumers.
VDSL2 is not one but many steps forward in VDSL
technology. The standard includes profiles for
a wide variety of scenarios, from very long loops,
where performance is similar to that of ADSL2+,
to in-building or to-the-curb loops, where VDSL2
can achieve data rates up to 100 Mbps both downstream
and upstream. VDSL2 profiles contain optimizations
for all major regulatory domains, and the standard
has QoS support built in, making VDSL2 the worldwide
choice for triple-play services going forward.
The DR714 combines a VDSL2 modem, SOHO router,
and four-port 10/100-Mbps Fast Ethernet switch
in a single housing. Supporting downstream data
rates up to 100 Mbps, upstream data rates up to
50 Mbps, and link distances up to 1500 meters
(4921 feet), the DR714 is especially well suited
for providing HDTV, voice, and data services in
office buildings, apartment blocks, hotels, and
schools.
Up to four computers can be connected directly
to the switch, or dozens of computers can be connected
through daisy-chained switches or hubs. The DR714
can be configured to filter internal users' access
to the Internet, while its content filtering capability
helps keep inappropriate Web pages from affecting
productivity or offending family sensitivities.
The DHCP server greatly simplifies network setup.
The NAT server, DMZ function, and firewall protect
the network against intrusion from the Internet.
All features and functions can be configured easily
through the embedded browser-based setup utility.
Among the options available for the DR714 are
VPN endpoint, TR-069 remote management, and IEEE
802.11b/g/draft-n wireless networking capability.
Now that VDSL2 is here, providers can offer all
the value-added services they have long dreamed
of offering. Fast, flexible, user-friendly, and
economical, the DR714 will add greatly to the
value of any VDSL2 rollout. |
