
98-141368-A 118
Glossary
Glossary
A
ATC Auxiliary Terrestrial Component. Hybrid satellite terrestrial systems that use terrestrial
repeaters to combine the wide area coverage capabilities of geostationary or low earth
orbit satellites with urban coverage and in building penetration provided from terrestrial
networks.
AWG American Wire Gauge. A means of specifying wire diameters.
B
BGAN Broadband Global Area Network. A satellite network based on geostationary satellites,
delivering broadband data and telephony to virtually any part of the earth, with full UMTS
(3G) compatibility. BGAN enables users to access e-mail, corporate networks and the
Internet, transfer files and make telephone calls.
C
CE Conformité Européenne. This term signifies that a CE certified product conforms to
European health, environmental, and safety regulations. In short, it makes the product
legal to be sold in the European Union.
CM Continuous Monitoring
D
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.
DTMF Dual Tone Multi Frequency. The keypad signalling technology that generates two distinct
tones when each key is pressed. This system allows navigation of voice menus and other
advanced calling services. All wireless phones use DTMF dialing.
E
EIRP Effective Isotropically-Radiated Power. The amount of power that would have to be
emitted by an isotropic antenna (that evenly distributes power in all directions) to
produce the peak power density observed in the direction of maximum antenna gain.
Comentarios a estos manuales