GE Reason RT430 Technical Manual page 9

RT430
IP - Internet Protocol;
IP40 - Degree of protection 40;
IRIG-B - Time synchronism protocol Inter Range Instrumentation Group (Rate Designation B);
LCD - Liquid Crystal Display;
MAC - Media Access Control;
NTP - Network Time Protocol;
OUT - Abbreviation of the term Output;
P2P - Peer-to-peer;
PLC- Programmable Logic Controller;
PPM - Pulse per minute;
PRP - Parallel Redundancy Protocol;
PPS - Pulse per Segundo;
PPX - Pulse per X s;
PTP - Precision Time Protocol;
RFC - Data formatting specification RFC 1951, DEFLATE; RJ45 - Ethernet Connector with 8 condutors;
RS232/485 - Serial port levels;
RT - Temporal Recorder (Alstom's Temporal Synchronization Equipment);
RX - Receiving data;
SNMP - Simple Network Management Protocol;
SNTP - Simple Network Time Protocol;
ST - Bayonet-lock connector;
TCP - Transmission Control Protocol;
TMARK - Daily pulses with programmable time;
TTL - Transistor-to-Transistor logic;
TX - Data transmission;
UDP - User Datagram Protocol;
UTC - Universal Time Coordinate.
RT430-TM-EN-5 9