A
A Ampere (SI Unit of Current)
AAL ATM Adaption Layer
AARNet Australian Academic and Research
Network
AC Alternating Current (Method of power
distribution)
ACP Access Communications Processor
ADC Analogue to Digital Converter
AGS+ Cisco 9 Slot multiprotocol router
AGS+/4 Cisco 9 slot multiprotocol router with 68040
processor
AIDL Automated Integrated Diagnosis
Limited
ALS Access Login Server
AM Access Module
ANSI American National Standards Institute
APPC Advanced Peer to Peer Communications
APPN Advanced Peer to Peer Networking
AS Autonomous System
ASC Area Switching Centre
ASIC Application Specific Integrated
Circuit
Async Asynchronous
ATG Address Translation Gateway
ATM Asynchronous Transfer Mode
AT&T American Telephone & Telegraphy
AU Accounting Units (ESA's internal
accounting unit)
AUC Authentication Centre
AUI Attachment Unit Interface
AXE Ericsson Telephony Switch
B
BACS Bankers Automated Clearing Services
BABT British Approval Board for Telecommunications
BEM-P Bus Extension Master-Primary
BEM-S Bus Extension Master-Secondary
BERT Bit Error Rate Test
BES Bus Extension Slave
BIOS Basic Input Output System
BISDN Broadband Integrated Services
Digital Network
bit Smallest single unit of digitised computer data
bit/s Bits per Second (Unit of Data
Transfer)
BMS Building Management System
BNC Standard Coaxial Connector also
used to connect IEEE 802.3 10Base2 coaxial cable to a
transceiver (50W RG58).
BOS Basic Operating System
BRI Basic Rate Interface (ISDN
2B+D service)
BS British Standards. Standards produced
by the BSi
BSC Base Station Controller
BSi British Standards institute
BSN Base Station Node
BT British Telecom
BTS Base Transceiver Station
Btu British thermal unit
byte Unit of digitised computer data equivalent to
eight bits
C
C Centigrade (Metric unit of temperature)
C&W Cable and Wireless (Joint
partners with US West of Mo2o)
CADAM Computer Aided Design and
Manufacture
CAS Customer Administration System
CAT Commissioning and Acceptance Testing
CATIA A CAD/CAM System Supplied by DASSAULT SYSTEMS
CCITT Comite Consultatif International
de Telegraphie et Telefonie (Consultative
Committee of International Telegraph
and Telephony), renamed ITU-T in March 1993.
CD Compact Disk
CDDI Copper Distributed Data Interface
CDR Call Data Record
CDROM Compact Disk Read Only
Memory
CERFnet
CES Customer Enquiry System
CET Cellular Engineering Tool
CHAP Challenge-Handshake Authentication
Protocol
CIDR Classless InterDomain Routing
CISC Complex Instruction Set Computing
CLI Call Line Identifier
CM Computer Module (Ericsson Eripax
central processor equipment)
cm Centimetre
CMOS Complementary Metal Oxide Semiconductor
CMT Configuration Management Tool
CNA Cellular Network Administrator
CP-5 Central Processor type 5
CPT Circuit Provisioning Tool
CPU Central Processing Unit
CRC Cyclic Redundancy Check
CSA Customer Service Administrator
CSC Customer Service Centre
CSF Critical Success Factor
CSF D Critical Success Factor D
(Provision the Network)
CSF E Critical Success Factor E
(Systems 4 Excellence)
CSP4000 Ericsson PAD
CUG Closed User Group
(a group of X.25 addresses were access to an address
within the group can only be gained from another address
in the same group).
