Terminology
49
MDI / MDI-X (Medium Dependent Interface)
Also called an uplink port, it is a port on a network hub or switch
used to connect to other hubs or switches without requiring a
crossover cable. The MDI port does not cross the transmit and
receive lines, which is done by the regular ports (MDI-X ports)
that connect to end stations. The MDI port connects to the MDI-X
port on the other device. There are typically one or two ports on a
device that can be toggled between MDI (not crossed) and MDI-X
(crossed).
Medium Dependent Interface - X (crossed)
A port on a network hub or switch that crosses the transmit lines
coming in to the receive lines going out.
NAT (Network Address Translation)
This process allows all of the computers on your home network to
use one IP address. The NAT capability of the Barricade, allows
you to access the Internet from any computer on your home
network without having to purchase more IP addresses from your
ISP. Network Address Translation can be used to give multiple
users access to the Internet with a single user account, or to map
the local address for an IP server (such as Web or FTP) to a
public address. This secures your network from direct attack by
hackers, and provides more flexible management by allowing
you to change internal IP addresses without affecting outside
access to your network. NAT must be enabled to provide multi-user
access to the Internet or to use the Virtual Server function.
Packet Binary Convulational Code(tm) (PBCC)
A modulation technique developed by Texas Instruments Inc. (TI)
that offers data rates of up to 22Mbit/s and is fully backward
compatible with existing 802.11b wireless networks.
