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For the purpose of Linac Locking, the 476MHz RF signal is the VCO output found located in the Resynchronization Chassis.  To generate this, an 11.5MHz VCO input and other RF signals from the Master Oscillator rack (i.e. 162.5MHz and 650MHz) are manipulated in such a way that a 476MHz RF signal is produced.  The SIM crates ensure that the 11.5MHz and 476MHz PLL output signals that are routed back to the Resynchronization Chassis remain locked in phase and frequency with their respective reference signals (also taken from the Resynchronization Chassis).  Further down the RF path, the 476MHz signal will be transported to Sector-2 via a (~1Km long) fiber cable and will be designated as the Main Drive Line (MDL) for PCAV, XTCAV and more.

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To launch the dashboard GUI in either Dev or Production, log onto the appropriate host (Dev ==> airdlcls-b50-srv01dev3, Production ==>  lcls-srv01) and then run the command mslk_dashboard:

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Upon running the command successfully, the following display is invoked:.  Click on the 11.5 MHz Loop and/or 476 MHz Loop buttons to launch the respective displays.

Old Displays

Note that the preferred display is the newer display shown above.  However, we include instructions on how to launch directly the old displays in case they are if needed.

Dev

To access and launch the display in Dev, follow the steps outlined below.

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