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The following list defines acronyms and other abbreviations used in this handbook.
10BaseT
Standard 10 megabits per second local area network over unshielded twisted pair copper wire
100BaseT
Standard 100 megabits per second ethernet network
2R
3R
Reshaping and regeneration and retiming
A
ACO
ADM
ANSI
American National Standards Institute
APD
APS
ATM
ATO
B
BER
Bits/s
Bits per second (see also bps)
BLSR
Bidirectional line switched ring
BM
BOL
bps
Bits per second (see also Bits/s)
C
CAN
CFM
CFR
CIM
Communication Interface module
CLEI
Common language equipment identifier code
CLIP
Client Layer Interface Port module
CMX
CMY
CPE
dB
dBm
decibel referring to 1 milliwatt
DCC
DCN
DFM
DNAM
Dummy Network Adaptation module
DRAM
DWDM
Dense wavelength division multiplexing
EDFA
EIA
Electronic Industries Association
EMC
EMI
EOL
ESD
ETS
European Telecommunications Standard
ETSI
European Telecommunications Standard Institute
F
FCC
Federal Communications Commission
FDI
Forward Defect Indication (this signal is used to activate the switching to the protection path)
GMT
Greenwich Mean Time (historic expression for Universal Time Coordinated UTC)
HA
HAT
HDLC
HFM
HTML
HW
HWT
ID
IEC
International Electrotechnical Commission
IEEE
Institute of Electrical and Electronics Engineers
I/O
IP
IrDA
ITU
International Telecommunications Union
ITU-T
International Telecommunications Union, Telecommunication standards sector
LA
LAN
LAT
LCD
LM
LOC
Loss of channel (i.e. in case of protected operation: failure on both working and protection paths)
LW
LWT
Mbps
MCU
MHz
NAM
NCB
NE
NEBS
Network Equipment Building Standard
Neid
NFPA
National Fire Protection Association
NMS
NVRAM
Non-volatile random access memory
OC
OC-3
Optical carrier, level 3 (same bit rate as STM-1)
OC-12
Optical carrier, level 12 (same bit rate as STM-4)
OC-48
Optical carrier, level 48 (same bit rate as STM-16)
ONS
P
PC
PIN-Diode
P-intrinsic-N diode (optical detector diode)
PM
QPP
RAM
RJ-12
RJ-45
RS-232
Recommended standard #232 (ANSI electrical interface for serial communication)
Rx
SCU
SDH
SMF
SNM
SNMP
Simple Network Management Protocol
SNTP
Simple Network Timing Protocol
SONET
STM
STM-1
Synchronous transport module, level 1 (same bit rate as OC-3)
STM-4
Synchronous transport module, level 4 (same bit rate as OC-12)
STM-16
Synchronous transport module, level 16 (same bit rate as OC-48)
TAC
TCP/IP
Transmission control protocol / Internet protocol
THz
TIA
Telecommunication Industry Association
TM
TMN
Telecommunication management network
Tx
UL
URL
Uniform Resource Locator (Internet address, including specific document location)
UTC
Universal Time Coordinated (formerly known as Greenwich Mean Time GMT)
W
WAN
WWW
XC
Posted: Thu Apr 17 14:57:44 PDT 2003
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