Chapter 1
–
Introduction
RT411
RT411
9
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.
2
Product Scope
RT411 - Time Signal Distributor expands the number of electrical/optical signal outputs
from a GPS/GNSS Clock. The equipment is ruggedized and specifically designed for
operation and to be part of the large scale electrical fixed installations, as electrical
power generation installations, electrical substations and electrical utilities control
systems.
RT411 multiplies IRIG-B demodulated, PPS or any signal with a voltage up to 5 Vdc, and
frequencies up to 5 MHz, through the electrical and optical outputs.
The equipment’s
time accuracy is based on the accuracy of the time reference source been used.
The equipment has up to 10 electrical outputs with a 150 mA individual supply capacity
and up to 10 optical outputs for multimode fiber and ST connector.
It also has indicators for monitoring the received time reference signal and the power
supply.
3
Functional Overview
Figure 1: Functional Overview of RT411
4
Standards Compliance
The device has undergone a range of extensive testing and certification processes to
ensure and prove compatibility with all target markets.
Compliance with the European Commission Directive on EMC and LVD is demonstrated
using a Technical File.
