User manual

98-129217-C 146

Glossary

APN Access Point Name. The Access Point Name is used by the terminal operator to establish the

connection to the required destination network.

BGAN Broadband Global Area Network. A satellite network based on geostationary satellites,

delivering data rates of up to 492 kbps to virtually any part of the earth, with full UMTS (3G)

compatibility.

CM Continuous Monitoring

CS Circuit-Switched. Circuit-switched networks require dedicated point-to-point connections

during calls.

DHCP Dynamic Host Configuration Protocol. A protocol for assigning dynamic IP addresses to

devices on a network. With dynamic addressing, a device can have a different IP address

every time it connects to the network.

DNS Domain Name System. A system translating server names (URLs) to server addresses.

ECEF The Earth-Centred Earth-Fixed or conventional terrestrial coordinate system rotates with the

Earth and has its origin at the centre of the Earth. The X axis passes through the equator at

the prime meridian. The Z axis passes through the north pole but it does not exactly coincide

with the instantaneous Earth rotational axis. The Y axis can be determined by the right-hand

rule to be passing through the equator at 90 degrees longitude.

G.3 fax Group 3 fax. A digital format for transmitting fax messages over a traditional phone line.

Conforms to the ITU-T Recommendations T.30 and T.4.