| A |
 |
|
AC |
Alternating Current |
|
ACTS |
Advanced Communication Technology Satellite (NASA program) |
|
ACTS |
Advanced Communications Technology System (EC program) |
|
ACM |
Adaptive Coding & Modulation |
|
AD |
Adjunct |
|
ADB |
Asian Development Bank |
|
ADM |
Add/drop multiplexing |
|
ADPCM |
Adaptive Differential Pulse Code Modulation |
|
ADSL |
Asymmetric Digital Subscriber Line or B-ADSL Broadband-ADSL |
|
AF |
Africa |
|
AFC |
Automatic Frequency Control |
|
AIN |
Advanced Intelligent Network, USA term for IN |
|
Aloha |
term used to describe contentious access to a channel (see slotted
Aloha) |
|
AM |
Africa/Middle East |
|
AMPS |
Advanced Mobile Phones System, US analogue cellular |
|
AOL |
America Online, a major online/Internet service provider in the USA |
|
AOR |
Atlantic Ocean Region |
|
AP |
Asia/Pacific |
|
APC |
Asia Pacific Telecommunity |
|
APEC |
Asia-Pacific Economic Co-operation |
|
APR |
Asia Pacific Region |
|
AS |
Asia |
|
ASCII |
American Standard Code for Information Interchange |
|
ASEAN |
Association of South-East Asian Nations |
|
AT |
Attention |
|
AT&T |
American Telephone & Telegraph Co. |
|
ATC |
Alarm Traffic Controller |
|
ATM |
Asynchronous Transfer Mode |
|
Attenuation |
the loss/absorption of radio frequency signals in the earth’s
atmosphere |
|
AUI |
Autonomous Unit Interface |
| B |
|
|
B-ISDN |
Broadband ISDN |
|
BDM |
Business Development Manager |
|
BER |
Bit Error Rate |
|
Bird |
slang term for a satellite |
|
BOD |
Bandwidth on Demand |
|
BOT |
Build Operate Transfer, associated with a fixed term licence from an
established operator (see also BTO) |
|
BPS |
Bits Per Second |
|
BSS |
Broadcast Satellite Services |
|
BT |
British Telecom |
|
BTO |
Build Transfer Operate (see also BOT) |
|
BW |
Bandwidth |
| C |
|
|
C&W |
Cable & Wireless |
|
C/N |
Carrier-to-Noise Ratio |
|
C-band |
6/4 GHz (UL/DL) frequency band used generally for satellite links in
Asia, Africa and Latin America due to its resilience to rain fade by
comparison with Ku-band Can have TI problems in developed countries.. |
|
CA |
Carrier Access |
|
CAGR |
Compound Annual Growth Rate |
|
CANARIE |
Canadian Network for the Advancement of Research, Industry and
Education |
|
CAP |
Competitive Access Provider |
|
CATV |
Cable Television |
|
CB |
Call Baring |
|
CBDS |
Connectionless Broadband Data Service (Europe’s answer to SMDS) |
|
CC |
Calling Centers |
|
CCAF |
Call Control Agent Function, IN block |
|
CCF |
Call Control Function, IN block |
|
CCITT 7 |
Signalling System 7 (now SS7) under the auspices of the ITU-T, also
known as |
|
CCS |
Complete Customer Satisfaction |
|
CDMA |
Code Division Multiple Access (either an access technique and/or a
cellular system) |
|
CDR |
Call Detail Records |
|
CE |
Control Elements |
|
CELP |
Code Excited Linear Predictive |
|
CEPT |
Conference of European Posts and Telecommunications |
|
CFDM |
Companded Frequency Division Modulation |
|
CIS |
Commonwealth of Independent States |
|
CITEL |
The Organisation of Inter-American States (OAS) and its department the
Inter-American Telecommunication Commission |
|
CLASS |
Custom Local Area Signalling Services |
|
CLI |
Calling Line Identity |
|
CME |
Compressed Multiplication Equipment |
|
CMIS |
Customer Management Information System |
|
CMS |
Carrier Monitoring System |
|
CO |
Central Office/local Exchange |
|
CODEC |
COder DECoder |
|
COO |
Chief Operating Officer |
|
CPE |
Customer Premises Equipment |
|
CPM |
Calls Per Minute |
|
CPU |
Central Processing Unit |
|
CSC |
Command Signal and Control, used in mesh networks to request connection
between remote terminals. |
|
CW |
Call Waiting |
|
Cw/ccw |
Clockwise/counter clockwise |
| D |
|
|
DAMA |
Demand Assigned Multiple Access, satellite access scheme, usually for
telephony |
|
DARPA |
Defence Advanced Research Projects Agency (US) |
|
DATE |
Duly Authorised Telecommunications Entity |
|
dB |
Decibel |
|
dBm |
Decibels referenced to milliwatts |
|
dBW |
Decibels referenced to Watts |
|
DC |
Direct Current |
|
DCE |
Data Communications Equipment |
|
DCME |
Digital Compressed Multiplication Equipment |
|
DCMS |
Digital Circuit Multiplication System |
|
DCS 1800 |
Digital Cellular System, GSM variant at 1800 MHz |
|
DCU |
Dial up Data Channel Unit |
|
DECT |
Digital European Cordless Telephone/Telecommunication |
|
DID |
Direct Inward Dialing |
|
DOD |
Department of Defense |
|
DP |
Data Processing |
|
DP |
Distribution Point, final flexibility point in access network, 100m
from subscriber |
|
DPI |
Dots per Inch |
|
DS |
Digital Signal |
|
DS0 |
Digital Service, Level 0, 64kbps |
|
DS1 |
Digital Service, Level 1, 1.544 Mbps |
|
DSI |
Digital Speech Interpolation |
|
DSS |
Direct Satellite Services |
|
DT |
Deutsche Telekom, formerly Deutsche Bundespost |
|
DTE |
Data Terminal Equipment |
|
DTH |
Direct-to-Home, usually satellite television broadcasting |
|
DTMF |
Dual Tone Multiple Frequency |
| E |
|
|
E&M |
Ear & Mouth |
|
E1 |
2.048 Mbps (Europe orientated) |
|
Eb/No |
Energy per Bit to Noise ratio |
|
EC |
Enhanced Capacity |
|
EC |
European Commission |
|
ECTRA |
European Committee for Telecommunications Regulatory Affairs |
|
EDI |
Electronic Data Interchange |
|
EE |
Eastern Europe |
|
EII |
European Information Infrastructure |
|
EIRP |
Equivalent Isotropic Radiated Power, a term used to describe and
reference the power a satellite is able to project to a point on the earth’s
surface. |
|
EPR |
Engineering Progress Report |
|
ESA |
European Space Agency |
|
ESCON |
Enterprise Systems Connection |
|
ETSI |
European Telecommunications Standards Institute |
|
EU |
European Union |
| F |
|
|
FAT |
Factory Acceptance Test |
|
FCC |
Federal Communications Commission, US Regulator |
|
FCS |
Fibre Channel Standard |
|
FDDI |
Fibre Distributed Data Interface |
|
FDM |
Frequency Division Modulation |
|
FDMA |
Frequency Division Multiple Access |
|
FEC |
Forward Error Correction |
|
FEP |
Front End Processor |
|
FFOL |
FDDI Follow On LAN |
|
FITL |
Fibre in the (local) Loop |
|
FLAG |
Fibre Link Around the Globe |
|
FNCS |
Foreign National Control System |
|
FOB |
Free On Board |
|
FOC |
Final Operating Configuration |
|
Footprint |
the area on the earth covered by a particular satellite’s beam |
|
FOS |
Follow on Satellite, Intelsat designation |
|
FOW |
Forward OrderWire |
|
FPLMTS |
Future Public Land Mobile Telecommunications Systems |
|
FR |
Frame Relay |
|
FRAD |
Frame Relay Access Device |
|
FRS |
Frame Relay Service |
|
FSS |
Fixed Satellite Service |
|
FT |
France Telecom |
|
FT1 |
Fractional T1 |
|
FTAM |
File Transfer and Access Management |
|
FTP |
File Transfer Protocol |
|
FTTC |
Fibre to the Curb (Kerb), linked to VDSL in deployment |
|
FTTH |
Fibre to the Home |
|
FXO |
Foreign Exchange Office |
|
FXS |
Foreign Exchange Service |
| G |
|
|
G/T |
Gain to System Noise Temperature Ratio |
|
Gbit |
Gigabit |
|
GE |
General Electric Corporation |
|
GEO |
Geostationary Earth Orbit |
|
GESS |
General Electric Satellite Services |
|
GHz |
Gigahertz (Billion hertz) |
|
GI |
General Instruments Corporation |
|
GII |
Global Information Infrastructure |
|
GMDSS |
Global Maritime Distress and Safety System |
|
GSM |
Global System for Mobile communications, originally: Groupe Spéciale
Mobile |
|
GSO |
Geostationary Earth Orbit |
|
GTF |
Global Traffic Forecast (Intelsat) |
|
GTM |
Global Traffic Meeting (Intelsat) |
|
GTS |
General TeleSystems Group |
|
GUI |
Graphical User Interface |
|
GW |
Gateway |
| H |
|
|
H-pole |
Horizontal pole |
|
HDSL |
High-Speed Digital Subscriber Line |
|
HFC |
Hybrid Fibre Co-ax |
|
HNS |
Hughes Network Systems |
|
HPA |
High Power Amplifier |
|
HPPI |
High Performance Parallel Interface |
|
HSSI |
High Speed Serial Interface |
|
HTTP |
Hyper Text Transfer Protocol |
|
Hub |
used to describe central station in a star network. The central point
of a star network is a major antenna, usually 6 metres or more, but
sometimes less. The hub also houses the network management system, the
modulation equipment and the main system processors and interfaces with
the customer's FEP. |
|
HVS |
Hospitality Voice Services |
|
Hz |
Hertz |
| I |
|
|
I/B |
Inbound/Outroute (also known as the return link), from remote terminal
to hub |
|
IBS |
Intelsat Business Service |
|
IBT |
International Business Traveller |
|
IDB |
International Development Bank |
|
IDL |
Interactive Distance Learning |
|
IDR |
Intermediate Data Rate |
|
IDU |
Indoor Unit, the box which sits in the user's office and provides the
interfaces and processing for the VSAT. Every manufacturer has a different
term for the IDU, but they all mean the same thing. |
|
IEC |
Inter Exchange Carrier |
|
IEEE |
Institute for Electrical and Electronics Engineers |
|
IF |
Intermediate Frequency |
|
IN |
Intelligent Network |
|
INAP |
Intelligent Network Application Part Protocol |
|
Inbound |
see I/B |
|
Inroute |
see I/B |
|
IOC |
Initial Operating Configuration |
|
IOR |
Indian Ocean Region |
|
IP |
Intelligent Peripheral, IN block |
|
IP |
Internet Protocol |
|
IPCU |
DAMA IP Channel Unit |
|
IPMI |
Internet Protocol Multicasting Initiative |
|
IPR |
Intellectual Property Rights |
|
IPSL |
Integrated IP Software License |
|
IRD |
Integrated Receiver/Decoder |
|
ISDN |
Integrated Services Digital Network |
|
ISO |
International Standards Organisation |
|
ISOC |
the Internet Society |
|
ISP |
Internet Service Provider |
|
IT |
Information Technology (usually refers to computers and the computing
environment) |
|
ITU-T |
ITU Telecommunications standards body |
|
ITU |
International Telecommunications Union |
|
IVPN |
International VPN |
|
IXC |
Inter-Exchange Carrier (US term) |
| J |
|
|
JDS-HR |
Japan Digital Services - Half Rate |
|
JPEG |
Joint Photographic Experts Group |
| K |
|
|
k |
kilo (thousand) |
|
Ka-band |
20/30 GHz (UL/DL) planned for deployment by several satellite systems
in the late 1990s, early 2000 due to increased bandwidth and propensity
towards smaller antennas. |
|
kBPS |
kilo Bits Per Second |
|
kft |
Kilofeet (USA cable length measurement) |
|
kHz |
kilohertz (thousand hertz) |
|
Ku-band |
10/14 GHz (UL/DL) frequency band, used generally for satellite links in
Europe and North America due to its susceptibility to rain fade during
heavy rain and problems of TI in many developed countries. |
|
kW |
kilowatt |
| L |
|
|
L-band |
1.5/2.5 GHz (UL/DL) frequency band, primarily used for mobile satellite
links (traditionally Inmarsat, but more recently the satellite PCN systems
planned for LEO and MEO operation). |
|
LA |
Latin America |
|
LAN |
Local Area Network (span < 10km) |
|
LATM |
Local ATM |
|
LCR |
Least Cost Routing |
|
LDCELP |
Low Delay CELP |
|
LEC |
Local Exchange Carrier, US term |
|
LEO |
Low Earth Orbit |
|
Link Budget |
a calculation based on satellite power, earth station power and antenna
size which describes the parameters of a satellite communications link. |
|
LMDS |
Local Multipoint Distribution Service |
|
LNA |
Low Noise Amplifier |
|
LNB |
Low Noise Block downconverter RF receiver module for a receive-only
terminal (data or TVRO). |
| M |
|
|
M&C |
Monitor and Control |
|
MAC |
Monitor and Control |
|
MAN |
Metropolitan Area Network (span approximately 50km) |
|
MAP |
Mobile Application Part Protocol |
|
Mbps |
Million Bits Per Second |
|
MCC |
Master Control Center / Computer |
|
MCPC |
Multiple Channels Per Carrier |
|
MCS |
Master Control Station the main controller, usually for a mesh network.
The master controls the network, setting up and tearing down links between
VSATs as required. |
|
ME |
Middle East |
|
MEO |
Medium Earth Orbit |
|
Mesh network |
any network station able to communicate with any other network station. |
|
MHz |
Megahertz (million hertz) |
|
MIPS |
Million Instructions Per Second |
|
MiTTs |
Minutes of Telecommunications Traffic |
|
MMCS |
Meridian Multi Media Center Switch |
|
MNC |
Multi-National Company |
|
Modem |
Modulator/Demodulator |
|
MOS |
Mean Opinion Score |
|
MPEG |
Motion Pictures Experts Group |
|
MPS |
Multiple Priority System |
|
MPT |
Ministry of Posts and Telecommunications |
|
MSS |
Mobile Satellite Service |
|
MTP |
Message Transfer Part |
| N |
|
|
NA |
North America |
|
NAP |
Network Access Point |
|
NASA |
National Aeronautical and Space Agency (US) |
|
NCB |
National Computer Board |
|
NCC |
Network Control Computer |
|
NCCC |
Network Control Coordination Channel |
|
NCS |
National Control System |
|
NCT |
Network Control Terminal |
|
NEC |
Nippon Electronic Corporation |
|
NGSO |
Non-Geostationary Earth Orbit, used as a general descriptive for LEO
and MEO systems. |
|
NGW |
National Gateway |
|
NII |
National Information Infrastructure (for the USA, see also GII and EII) |
|
NISC |
National Information Services Council |
|
NIU |
Network Interface Unit |
|
NMS |
Network Management System, monitors and controls the remote stations
(VSATs) in a network, performs traffic analysis and trouble shooting. |
|
NOC |
Network Operations Center |
|
NSF |
National Science Foundation (US) |
|
NTE |
Network Terminating Equipment |
| O |
|
|
O&M |
Operations and Management |
|
O/B |
Outbound/Outroute, from hub to remote terminal |
|
OA&M |
Operations Administration and Management |
|
OC |
Optical Carrier |
|
ODU |
Outdoor Unit, the transmission and reception electronic package mounted
on the antenna and connected to the IDU by an IFL cable. This can also be
known as the "radio" or the "RF package". |
|
OEM |
Original Equipment Manufacturer |
|
OFTEL |
Office of Telecommunications (UK Regulator) |
|
OMT |
Orthogonal Mode Transducer |
|
ONP |
Open Network Provision |
|
OQPSK |
Offset Quaternary Phase-shift Keying |
|
Oribital Slot |
longitude position above the equator at which a satellite is located |
|
OSI |
Open Systems Interconnection |
|
Outbound |
see O/B |
|
Outroute |
see O/B |
| P |
|
|
P6 |
Pentium 6 |
|
PA |
Power Amplifier |
|
PABX |
Private Automatic Branch Exchange |
|
PAMA |
Permanent Assignment Multiple Access |
|
PAS |
PanAmSat |
|
PBX |
Private Branch Exchange |
|
PC |
Personal Computer |
|
PCCA |
Pacific Century Corporate Access |
|
PCG |
Pacific Century Group |
|
PCM |
Pulse Code Modulation |
|
PCN |
Personal Communications Network |
|
PCP |
Primary Cross-connection Point, street cabinet/flexibility point |
|
PCS |
Personal Communication System |
|
PDH |
Plesiochronous Digital Hierarchy |
|
PES |
Personal Earth Station, Hughes VSAT product |
|
PIN |
Personal Identification Number |
|
PLDT |
Philippines Long Distance Telephone Company |
|
PMO |
Program Management Office |
|
PN |
Pseudo Noise |
|
POC |
Point Of Contact |
|
POM |
Project Office Manager |
|
POP/PoP |
Point of Presence, usually referring to an Internet service
provider/access point |
|
POR |
Pacific Ocean Region |
|
POTS |
Plain Old Telephone Service |
|
PRB |
Project Review Board |
|
PRI |
Primary Rate Interface |
|
PSC |
Project Steering Committee |
|
PSN |
Public Switched Network |
|
PSTN |
Public Switched Telephone Network |
|
PT |
Point |
|
PTO |
Private Telecommunications Operator |
|
PTS |
Per Trunk Signaling |
|
PTT |
Posts, Telegraph and Telephone company (usually a government monopoly
operator) |
|
PVC |
Permanent Virtual Circuit, as opposed to Switched Virtual Circuit |
|
Pwr |
Power |
| Q |
|
|
QoS |
Quality of Service |
|
QPM |
Quarterly Progress Meeting |
|
QPR |
Quarterly Progress Report |
|
QPSK |
Quadrature Phase Shift Keying, a modulation scheme |
| R |
|
|
R&D |
Research and Design |
|
RAITN |
Regional Arab Information Technology Network |
|
RAM |
Random Access Memory |
|
RASCOM |
Regional African Satellite Communications Organisation |
|
RBOC |
Regional Bell Operating Company |
|
Remote |
or remote terminal, used to describe a VSAT installation |
|
RF |
Radio Frequency |
|
RFC |
Request for Comments |
|
RFFP |
Request For Final Proposals |
|
RFI |
Request for Information |
|
RFP |
Request for Proposal |
|
RFT |
Radio Frequency Transmitter used to describe large antennas with
associated receive/transmit equipment |
|
RJ-11 |
Registered Jack –11 |
|
ROM |
Read Only Memory |
|
ROW |
Return OrderWire |
|
RS232 |
Recommended Standard –232 |
|
RSVP |
Repondez s’il vous plait (please reply) |
|
Rx |
Receive |
| S |
|
|
S-A |
Scientific-Atlanta |
|
S-band |
4/2 GHz (UL/DL) frequency band |
|
SATCOM |
Satellite Communications |
|
Satellite Capacity |
the resources required for a link between two terminals, usually
calculated in satellite power versus satellite bandwidth |
|
SCADA |
Supervisory Control and Data Acquisition |
|
SCCP |
Signalling Connection Control Part, part of SS7 |
|
SCE |
Service Creation Environment, IN block |
|
SCEP |
Service Creation Environment Point, IN block |
|
SCF |
Service Control Function, IN block |
|
SCP |
Service Control Point, IN block |
|
SCPC |
Single Channel per Carrier, satellite dedicated circuit, the satellite
equivalent to a leased line. Actually an SCPC link comprises two clear
channels, usually running at rates from 9.6 kbps to 2 Mbps, but the rate
could be far higher. |
|
SDA |
System Design Authority |
|
SDF |
Service Data Function, IN block |
|
SDH |
Synchronous Digital Hierarchy, follow on from PDH |
|
SDLC |
Synchronous Data Link Control |
|
SDMA |
Space Domain Multiple Access |
|
SDP |
Service Data Point, IN block |
|
SIB |
Service Independent Building Block, IN block |
|
SITA |
Société Internationale de Télécommunications Aéronautique |
|
Slotted Aloha |
term used to describe time divided contentious access to a channel,
also known as TDMA |
|
SMAP |
Service Management Access Point, IN block |
|
SMCS |
Short Message Service Center |
|
SMDS |
Switched Multimegabit Data Service, connectionless data service |
|
SME |
Short Message Entity |
|
SME |
Small to Medium sized Enterprise |
|
SMP |
Service Management Point, IN block |
|
SMS |
Service Management System, IN block |
|
SMS |
Short Message Service |
|
SMSC |
Short Message Service Centre, part of GSM messaging system |
|
SN |
Service Node, IN block |
|
SNA |
Systems Network Architecture |
|
SNG |
Satellite News Gathering |
|
SoHo |
Small office/Home office |
|
SONET |
Synchronous Optical Network, US equivalent to SDH |
|
Space Segment |
technically refers to the satellite, but often used to describe
satellite capacity |
|
SPCN |
Satellite Personal Communications Network |
|
SRC/DST |
Source/Destination |
|
SRF |
Specialised Resource Function, IN block |
|
SS/TDMA |
Satellite Switched Time Division Multiple Access, Intelsat service |
|
SS5 |
Signaling System 5 |
|
SS7 |
Signalling System 7, supported by the ITU-T, also known as CCITT 7 |
|
SSF |
Service Switching Function, IN block |
|
SSP |
Service Switching Point, IN block |
|
SSPA |
Solid State Power Amplifier |
|
ST |
Subscriber Terminals |
|
ST1 |
Switched T1 |
|
Star network |
all communications between remote stations required to transit a
central hub. |
|
STM |
Satellite Technology Management, Inc. |
|
STM |
Synchronous Transfer Mode, or |
|
STM |
Synchronous Transfer Module |
| T |
|
|
T1 |
1.544 Mbps (US orientated) |
|
TACS |
Total Access Communications Systems (Analogue) |
|
TAM |
Total Available Market |
|
TAS |
Telecommunications Authority of Singapore |
|
TBD |
To Be Determined |
|
TCP/IP |
Transmission Control Protocol/Internet Protocol |
|
TDM |
Time Division Multiplexing, a satellite channel divided into time slots
for transmission from a central hub to a group of VSAT sites. Individual
time slots can be addressed specifically to one or more VSATs. Usually
used as the access protocol for the outbound channel (hub to VSAT) of a
VSAT system. |
|
TDMA |
Time Division Multiple Access, a contentious access satellite channel
which is divided into time slots for sharing between VSATs at different
sites usually for connection to a hub. Usually used as the access protocol
for the inbound channel (VSAT to hub) of a VSAT system. |
|
TES |
Telephony Earth Station (Hughes SCPC DAMA product) |
|
TI |
Terrestrial Interference |
|
TMC |
Terminal Monitor and Control |
|
TMN |
Telecommunication Management Network |
|
TQM |
Total Quality Management |
|
Transponder |
a defined amount of bandwidth supported by various components on the
satellite. Measured in increments of MHz (usually 36, 48 or 72). |
|
TRM |
Technical Review Meeting |
|
TVRO |
Television Receive Only earth station |
|
Tx |
Transmit |
| U |
|
|
UAE |
United Arab Emirates |
|
UDP |
User Datagram Protocol |
|
UEM |
Universal Equipment Modules |
|
UIC |
User Interface Client |
|
UMTS |
Universal Mobile Telecommunications System |
|
UNI |
User Network Interface |
|
UPN |
Universal Personal Number |
|
UPT |
Universal Personal Telecommunications |
| V |
|
|
V-band |
50/40 GHz |
|
V-pole |
Vertical-pole |
|
VAC |
Voltage Alternating Current |
|
VADSL or VDSL |
Very high speed (Asymmetric) Digital Subscriber Line |
|
VEC |
Voice Equivalent Circuit |
|
VFCU |
Voice/FAX Channel Unit |
|
VM |
Voice Mail |
|
VME |
Versa Module Eurocard |
|
VMM |
Voice / Modem Module |
|
VPN |
Virtual Private Network |
|
VPS |
Voice Processing System |
|
VSAT |
Very Small Aperture Terminal, business premises earth stations, term
used to describe almost any direct to business satellite earth station,
one-way or interactive. Typically however, it is used for data systems
(interactive less than 2.4 metre antennas and one-way less than 1.8 metre
antennas). Can use TDM/TDMA, SCPC or DAMA access schemes. |
|
VSSP |
Virtual Service Switching Point |
| W |
|
|
W |
Watt |
|
WAN |
Wide Area Network, covers LANs and MANs, data limited to available
rates |
|
WB |
World Bank |
|
WBS |
Work Breakdown Structure |
|
WC |
Watts per channel |
|
WDM |
Wavelength Division Multiplexing, used to increase capacity on fibre |
|
WE |
Western Europe |
|
WLL/WiLL |
Wireless Local Loop, WiLL is also Motorola’s WLL product line name |
|
WTO |
World Trade Organisation |
|
WWW |
World Wide Web |
| X |
|
|
X-band |
6-10 GHz (UL/DL) frequency band, military use. |
|
xDSL |
term used to describe all types of Digital Subscriber Line technologies
(ADSL/VDSLHDSL etc.) |
| Y |
|
|
Yank |
term used to describe Americans, English slang for pull as in
"pull your chain" |
| Z |
|
|
Z-band |
Only kidding, although there probably is a Z-band, I just needed a Zed
(see in Yankee) to finish off. |
