Versions Compared

Old Version 5

changes.mady.by.user Michael Skoufis

Saved on

compared with

New Version 6

changes.mady.by.user Michael Skoufis

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

Table of Contents

Acronyms

Term

Description

AC

Alternate Current

ATCA

Advanced Telecommunications Computing Architecture

CPU

Central Processing Unit

EPICS

Experimental Physics and Industrial Control System

FPGA

Field Programmable Gate Array

IOC

Input Output Controller

LCLS

Linac Coherent Light Source

MDL

Main Drive Line

NC

Normal-Conducting

RF

Radio Frequency

SC

Super-Conducting

SHM

Shelf Manager

VMTG

VME-based Master Trigger Generator

Objective


Timing System Description


The 476MHz Master Oscillator provides an RF signal.  This is synchronized with the 360Hz 3-phase power line signal (from the a sequencer chassis) in the VME-based Master Trigger Generator.  The VMTG output triggers the fiducial generator at 360Hz and the output of the fiducial generator is combined with the original 476MHz signal in the Main Drive Line (MDL).


Linac Locking Description

...