It is a kind of Home-net Equipment
enables low cost and easy installation.
In the 10BASE-T Ethernet LAN network,
HUB and NIC(Network Interface Card) is connected by 4-wire and
maximum allowable length is about 150m according to our test.
Most of the building provided 4-wire between wall jacks to terminals
in basement for POTS( Plain Old Telephone Service ). If HUB is
installed in basement where terminals for communication to and
from outside of building, 10BASE-T Ethernet service can be provided
without additional wiring to the POTS subscriber so that the subscriber
can access to public data network and PSTN simultaneously as the
following block diagram.