Grass Valley 1200 Installation - Manual (Page 127)

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Software Installation or Upgrade
Software Installation or Upgrade
The following procedure is to be used when reinstalling the system
software or to upgrade the system software to a new version.
Saving E-MEM Data to Diskette
Before you install new software in the Model 1200, save any E-MEM files
created during your operation. Refer to the Operation ManualÕs Disk menu
text for the save-to-disk procedure.
After completing the software installation, re-load the E-MEM files into the
switcher. Old E-MEM files (E-MEMs saved using previous software
versions) should be updated with each new software release.
To do so, load your old E-MEM files into your Switcher (updated with the
latest software release) and resave the E-MEMs to a new disk, thereby
updating the E-MEMs to the latest release. Make note of the software
version with which the E-MEM files were saved; write this information on
the disk for future reference. The software version number is crucial should
you need to return your E-MEMs to a previous software release level.
Normally you would retain the previous version of the E-MEM files in case
you decide to revert to a previous software version, because E-MEMs are
forward-compatible only. However, after installing FM2535-00 and
updating your system to v3.0 software, your system hardware will not be
backward compatible. Therefore, do not attempt to re-install v2.1 software
in your Model 1200 switcher.