Glossary

Item Description
ADM Add Drop Multiplexer
BER Bit Error Ratio
BOL Beginning of Life
BU Branching Unit
CLS Cable Landing Station
CPT Cone Penetration Testing
DC Direct Current
DCN Data Communications Network
DEF Double End Feed
DTS Desk Top Study
DWDM Dense Wavelength Division Multiplexing
ECT Equipment Craft Terminal
EMS Element Management System
EOL End Of Life
ETSI European Telecommunications Standards Institute
FAT Factory Acceptance Test
FEC Forward Error Correction
FIT Failure In Time : the number of failures in 109 device hours
FP Fibre Pair
Gbit/s Gigabits (109) per Second
GE Gigabit Ethernet
GFP Generic Framing Procedure
ICPC International Cable Protection Committee
IEC International Electrotechnical Commission
IST In Station Tests
ITU International Telecommunications Union : Telecommunications Standardisation Sector
LCAS Link Capacity Adjustment Scheme
MOP Method of Procedure
MRS Marine Route Survey
MSP Multiplex Section Protection
MTTR Mean Time To Repair
NCP Network Connection Protection
NTP Network Time Protocol
OADM BU Optical Add Drop Multiplexing Branch Unit
ODF Optical Distribution Frame
OSP Outside Plant
PFE Power Feeding Equipment
POW Plan of Work
RFPA Ready For Provisional Acceptance
RPL Route Position List
RTT Repair Turnaround Time
SDH Synchronous Digital Hierarchy
SEF Single End Feed
SESR Severely Errored Second Ratio(as defined in ITUT Recommendation G.826/8)
SLD Straight Line Diagram
SLTE Submarine Line Terminating Equipment
SOL Start Of Life
SSU Synchronisation Source Unit
TSE Terminal Station Equipment
UJ Universal Joint