|
Analogue |
An electrical signal which is analogous to changing physical quantity
measured |
|
ATD |
Advice of Transfer Debit |
|
BCR |
Biennial Cadre Review |
|
BNPL |
Book Now Pay Later |
|
BSNL |
Bharat Sanchar Nigam Limited |
|
CBT |
Coin Box Telephone |
|
CCB |
Coin Collection Boxes |
|
CDTMX |
Computerised Digital Trunk Manual Exchange |
|
CKM |
Cable conductor kilometre - cable sheath kilometres multiplied by the
number of conductor pairs in each cable |
|
CLIP |
Calling Line Identification Presentation |
|
Coaxial cable |
A cable with a single wire in the centre of cylindrical conductor
forming a pair of carrying electrical signals |
|
CT Boxes |
Cable Termination Boxes |
|
CTS |
Controller of Telecom Stores |
|
DEL |
Direct exchange lines, one each for every telephone connection |
|
DWC |
Discrete Wire Connection |
|
Digital exchange |
The exchange having signals coded into binary pulses and having little
or no moving parts |
|
EPABX |
Electronic Private Automatic Branch Exchange |
|
EOT |
Extension of time |
|
ETRP |
Electronic Trunk Relay Plates |
|
HDPE |
High density polyethylene |
|
HDSL |
Highbit rate Digital Subscriber Line |
|
HRMS |
Hot Rolled Mild Steel |
|
Hertz or Hz |
Frequency (cycles per second), named after Heinrich Hertz - usually in
ranges of kilo 1000 - KHz, mega 1,000,000 - MHz or giga 1,000,000,000 -
GHz |
|
HZL |
Hindustan Zinc Limited |
|
IISCO |
Indian Iron and Steel Company |
|
ISDN |
Integrated Services Digital Network |
|
ISV |
Independent Stock Verification |
|
LDST |
Long Distance Satellite Telephone |
|
LOI |
Letter of Intent |
|
MARR |
Multi Access Rural Radio |
|
Mb/s |
Mega bits per second denoting digital frequency |
|
MUX |
Multiplex |
|
NE Lines |
Non Exchange Lines |
|
OFC |
Optical Fibre Cable |
|
Optical Fibre (OF) |
Glass fibres using lightwaves for transmission of signals |
|
OYT |
Own your telephone |
|
PABX |
Private Automatic Branch exchange |
|
PBX |
Private branch exchange |
|
PCB |
Printed Circuit Board |
|
PCM |
Pulse Code Modulation |
|
PCO |
Public Call Offices |
|
PIJF Cable |
Polyethylene Insulated Jelly Filled Cable |
|
PSPDN |
Packet Switch Public Data Network |
|
PST |
Progressive Stock Taking |
|
PVC |
Polyvinyl chloride |
|
PW |
Private Wires |
|
SPCC |
Speed Post Collection Centre |
|
SRCs |
Subscriber Record Cards |
|
SSAs |
Secondary Switching Areas |
|
STD |
Subscriber trunk dialling |
|
STM |
Synchronous Transport Module |
|
TAX |
Trunk automatic exchange |
|
TDMA |
Time Division Multiple Access - A transmission technique used in
digital radio transmission in which the use of a frequency is divided into
time slots that are shared amongst several users. |
|
Telex |
Teleprinter exchange |
|
TTH |
Triangular Tubular Hybrid |
|
UHF |
Ultra high frequency (300 to 3000 MHz) |
|
VHF |
Very high frequency |
|
VSAT |
Very small aperture terminal |