Glossary 77
Glossary
downstream
In a cable data or DSL network, the direction of data received by your computer from
the Internet.
driver
Software that enables a computer to interact with a network or other device. For example, there
are drivers for printers, monitors, graphics adapters, modems, Ethernet, USB, and
many others.
DSL
A digital subscriber line enables a broadband connection to the Internet over traditional telephone
lines that support DSL. You need a subscription for DSL service from your local telephone
company.
dynamic IP
address
An IP address that is temporarily leased to a host by a DHCP server. The opposite of
static IP
address
.
Ethernet
The most widely used type of local area network (LAN). The most commonly installed Ethernet
networks are called 10Base-T. 10Base-T provides transmission speeds up to 10 megabits per
second (Mbps), usually over twisted-pair wire. Fast Ethernet (100Base-T) provides transmission
speeds up to 100 Mbps.
F-type connector
A type of connector used to connect coaxial cable to equipment such as the RSGu3502.
firewall
A security software system on the RSGu3502 that enforces an access control policy between the
Internet and the RSGu3502 LAN.
flow
A data path moving in one direction.
GUI
graphical user interface
HFC
A hybrid fiber/coaxial cable network uses fiber-optic cable as the trunk and coaxial cable to the
subscriber premises.
host
Any computer or similar device supporting end-user applications or services with full two-way
network access. Each host has a unique host number that combined with the network number
forms its IP address.
hub
On a LAN, a device that connects multiple hosts to the LAN. A hub performs no data filtering. See
also
router
.
