Question: What is PLUS*?
Answer: Power Line Ultimate System is a complete,
flexible integrated system that provides broadband
services over the electricity grid. It consists of
Access, In-Home and Management & control
Question: What can PLUS do?
Answer: PLUS enables
to provide the end users with broadband communications services: an end user
can surf high speed Internet and talk over the phone, by using just the electricity lines in his house. In addition, the
system provide plug-and-play home-networking.
Question: What are the
differences between units (CuPLUS, NtPLUS,RpPLUS)?
Answer: The CuPLUS is located on the
low voltage transformer. It controls the access to and
from the PLUS units
at the customer premises. The NtPLUS is a network
termination unit providing communication services at
electrical wall socket.
The system can reach long distance even in very noisy
environment by use of RpPLUS, which uses
The NmPLUS is the PLUS network management that enable
remote management and diagnostics of masses of
are the differences between PLUS solution and
Main.netís PLUS solution is the first
commercial one in the market. It uses a patented
technology that meets
regulation and standards. The PLUS solution is a
complete end-to-end solution combining the Access,
networking into one manageable solution.
The technology uses patented smart repetition to reach
any location in the grid without violating the
Main.netís solution is proven to be working in any
environment and topology.
The system is simple to install and it is plug-and-play for the
customer. The system can
itself to changes in the grid and doesnít disturb the
operation of the grid.
is the transfer rate of a unit?
Our unit transfers 14 Mb/s (shared bandwidth). Much higher rates
are expected in the near future.
X users are connected what is the real bandwidth for
each one and all together?
The quality of the
service provided to the end-user can be defined by the
service provider. The system supports
provisioning of different levels of QoS.
Can I surf the Internet and talk
over the phone at the same time?
Of course, and one wonít affect the other.
different users get different transfer rates because of
their locations on the net?
No. Due to highly efficient planning of the net, each
user gets optimal transfer rates and not depending on
one unit supply communication from all electrical
outlets/sockets at the house?
Answer: Yes, by
connecting the unit to a hub but that would really
non-efficient because you will have to put new wires in
home. Basically in order to have more than one computer
the user will have more than one unit.
the size of the units?
See present models in the Product
and Services page.
is the longest distance the system can reach?
The topology of the network and attenuation of
components such as street cabinets and meters are more
than distance. Unlimited distance can be reached using
smart repetition. In some grids, distances of more than
meters have been reached without a repeater.
is the regulatory situation?
The regulations for PLC are still being
defined. The European Commission has requested Cenelec
to accelerate the
regulation process for PLC in
. We have the relevant CE mark. The European Commission
has declined the
German NB30 standard; clashes with the CE mark.
Furthermore, measurements were conducted by the German
regulation (RegTP) and the results show that we
within the standard (the RegTP doesnít provide
documentation when limits do not exceeded.
modulation is used?
Sequence Spread Spectrum - used in Main.net G1
Orthogonal Frequency Division Multiplexing - used in
Main.net G2 units.
Main.net is in constant contact with all the PHY
manufacturers, and as the system is PHY independent, new
PHY can be selected.
kind of network management software manages the system?
The PLUS Network Management System manages and controls the
entire Plus system and peripherals
any location in the network.
Question: Can you
elaborate on the NMS of the system?
Answer: The NmPLUS
provides the following services:
deactivation of system components
Control of activities
Remote downloading of
Unit failure detection
over entire system
statistics for optimal efficiency configuration.
NmPLUS commercially available?
Yes, the system has been installed in several sites.
is the security issue solved in our system?
The system implement advanced security mechanism in the
lower communication levels.
a user see if other computers are connected to the
user will not be able to see any other computer
connected to the power line. Unless purposely
as a VLAN.
one user boom the network and block all other users?
No the system is protected from hacking.
An end user can connect his standard analog telephone to
the unit and have a second line. It enables him to
process extra services.
VoIP protocols the system supports?
The system can support in all the standards
VoIP protocols and compressions.