3Com OfficeConnect 3CRWDR200A-75 User Manual page 118

G
LOSSARY
116
Auto-negotiation
Bandwidth
Category 3 Cables
Category 5 Cables
Channel
Client
DDNS
DHCP
Some devices in the OfficeConnect range support auto-negotiation.
Auto-negotiation is where two devices sharing a link, automatically
configure to use the best common speed. The order of preference
(best first) is: 100BASE-TX full duplex, 100BASE-TX half duplex,
10BASE-T full duplex, and 10BASE-T half duplex. Auto-negotiation is
defined in the IEEE 802.3 standard for Ethernet and is an operation
that takes place in a few milliseconds.
The information capacity, measured in bits per second, that a channel
can transmit. The bandwidth of Ethernet is 10 Mbps, the bandwidth of
Fast Ethernet is 100 Mbps. The bandwidth for 802.11b wireless is
11Mbps.
One of five grades of Twisted Pair (TP) cabling defined by the
EIA/TIA-586 standard. Category 3 is voice grade cable and can only be
used in Ethernet networks (10BASE-T) to transmit data at speeds of up
to 10 Mbps.
One of five grades of Twisted Pair (TP) cabling defined by the
EIA/TIA-586 standard. Category 5 can be used in Ethernet
(10BASE-T) and Fast Ethernet networks (100BASE-TX) and can
transmit data up to speeds of 100 Mbps. Category 5 cabling is better to
use for network cabling than Category 3, because it supports both
Ethernet (10 Mbps) and Fast Ethernet (100 Mbps) speeds.
Similar to any radio device, the OfficeConnect Cable/DSL Router
allows you to choose different radio channels in the wireless spectrum.
A channel is a particular frequency within the 2.4GHz spectrum within
which the Router operates.
The term used to described the desktop PC that is connected to your
network.
Dynamic Domain Name Server. A method that enables Internet users
to tie their domain name(s) to computers or servers. DDNS enables a
domain name to follow an IP address automatically when the IP
address changes.
Dynamic Host Configuration Protocol. This protocol automatically
assigns an IP address for every computer on your network. Windows