BinTec X4000, User Manual

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X4000 User’s Guide 469
Glossary
Glossary
100Base-T Twisted pair connection, Fast Ethernet. Network connection for 100-Mbps
networks.
10Base-T Twisted pair connection. Network connection for 10-Mbps networks with
➤➤
RJ45 connector.
1TR6 D-channel protocol used in the German ISDN. Today the more common
protocol is the
➤➤
DSS1 .
Access list A rule that defines a set of packets that should or should not be transmitted by
the router.
Accounting Recording of connection data, e.g. date, time, connection duration, charging
information and number of data packets transferred.
ADSL Asymmetric
➤➤
Digital Subscriber Line
The data rate is up to 640 kbps
➤➤
upstream and 1.5 - 9 Mbps
➤➤
downstream over ranges of up to 5.5 km.
The main ADSL applications are: Internet access, video-on-demand (digital and
compressed) and high-speed data communication over
➤➤
POTS .
ARP Address Resolution Protocol
ARP belongs to the
➤➤
TCP/IP protocol family . ARP resolves IP addresses
into their corresponding
➤➤
MAC addresses .
Asynchronous
transmission
A method of data transmission in which the time intervals between transmitted
characters can vary in length. This allows computers and peripheral devices to
intercommunicate without being synchronized by clock signals. The beginning
and end of the transmitted characters must be marked by start and stop bits –
in contrast to
➤➤
synchronous transmission .
B-channel Control and signaling channel of the
➤➤
ISDN Basic Rate Interface or the
➤➤
Primary Rate Interface for transmission of traffic (voice, data). An ISDN
Basic Rate Interface consists of two B-channels and one
➤➤
D-channel . A B-
channel has a data transmission rate of 64 kbps.
The data transmission rate of an ISDN Basic Rate Interface with X4000 can be
increased to up to 128 kbps using
➤➤
channel bundling .
BOD Bandwidth on Demand