5.2 Abbreviation List
AFNOR
Association Francaise de
Normalisation time codes
AC
Alternating Current
ASCII
American Standard Code for
Information Interchange
BMC
Best Master Clock
BNC
Bayonet Neil Councilman connector
Bps
Bytes per second
bps
Bits per second
CAT5
Standard Network Cable
CET
Central European Time
CLI
Command Line Interface
DB9
Connector do type D-subminiature
DC
Direct Current
DCF77
Is a longwave time signal. DCF77
stands for D=Deutschland (Germany),
C=long wave signal, F=Frankfurt,
77=frequency: 77.5 kHz.
DCFMARK
Single pulse with a programmable
date and time
DHCP
Dynamic Host Configuration Protocol
DNS
Domain Name Server
DSCP
Differentiated Services Code Points
DST
Daylight Saving Time
E1
European digital transmission signal
at 2.048 MHz used in telecommunication
networks.
E2E
End-to-end
ETH
Ethernet
FTP
File Transfer Protocol
FW
Firmware
GE / GbE
Gigabit Ethernet
GLONASS
GLObal NAvigation Satellite System
from Russian Aerospace Defense
Forces
GND
Ground (Connector)
GNSS
Global Navigation Satellite System
(GPS, GLONASS, Galileo, Beidou)
GOAL
GPS Optical Antenna Link
GPS
Global Positioning System (USA)
GSM
Global System for Mobile
Communications
HMI
Human-Machine Interface
HP
Horizontal Pitch - is a unit measure
the horizontal width of rack mounted
electronic equipment
HPS
High Performance Synchronization
PTP/NTP/SyncE GBit module
HSR
High-availability Seamless Redundancy
HTTP
Hypertext Transfer Protocol
HTTPS
Hypertext Transfer Protocol Secure
IEC
International Electrotechnical
Commission
IED
Intelligent Electronic Devices
IEEE
Institute of Electric and
Electronic Engineers
IEEE 1588
Protocol for high-precision
synchronization in nanosecond
range (PTP)
IP
Internet Protocol
IP 20
Protection Class 20
IRIG
Inter-range instrumentation group
time codes
LCD
Liquid Crystal Display
LDAP(S)
Lightweight Directory Access Protocol
LED
Light-Emitting Diode
LINUX
Unix-like multi-user computer
operating system
LIU
Line Interface Unit- an module for
generation E1/T1 Signals, both
MBit/s (framed) and Clock (unframed)
LNE
Local Network Extention,
additional Ethernet Ports
MAC
Media Access Control
MD5
Message-Digest cryptographic
hash function
MESZ
Middle European Summer Time
MEZ
Middle European Time
MIB
Management Information Base
MRS
Multi Reference Source
MSF
Time signal transmitter in
Anthorn, UK
NIST
National Institute of
Standards and Technology
NMEA
Communication standard from
National Marine Electronics
Association
NTP
Network Time Protocol
NTPD
NTP Deamon
OSV
Original Shipped Version
(Firmware)
OUT
Output
P2P
Peer-to-Peer
PLC
Programmable Logic Controller
PLL
Phase Locked Loop
PPM
Pulse per Minute
PRP
Parallel Redundancy Protocol
PPS
Pulse per Second
PPH
Pulse per Hour
PTB
Physical - Technical Institute
Braunschweig / Germany
PTP
Precision Time Protocol
RAM
Random Access Memory
RF
Frequency of radio waves,
from 3kHz to 300GHz
RG58
Standard coaxial cable used to
connect an antenna and a receiver
RJ45
Ethernet Connector with 8 conductors
RMC
Remote Monitoring Control
RoHS
Restriction of Hazardous Substances
RPS
Redundant Power Supply
RS232/485
Serial port levels
RSC
Redundant Switch Control unit
RX
Receiving Data
SBC
Single Board Computer
SDU
Signal Distribution Unit
18
Date: 27th May 2021
IMS - LANTIME M4000