Grass Valley VM 3000 System Controllers v.7.4 - Manual (Page 712)

Redundant VM/SI
K−4 VM 3000 Installation and Operating Manual
Note 2: If only one crosspoint cable from the Venus exists, make sure it is connected to the good VM 3000.
This will ensure that the switcher remains working. If you need to swap the crosspoint cable no switches will
be processed whilst this is disconnected.
a. Determine if the faulty unit is the Primary or Backup VM/SI 3000.
If the chassis is not labelled, check the position of the rotary address switches, which are visible through the top
cover (see page 2−53 and Table K−3).
3. Install the replacement VM/SI 3000.
a. Ensure that the replacement VM/SI 3000 now has an identical address to the faulty unit. Change the rotary DIP
switches if necessary.
b. Re−connect the cables. Ensure that the LAN loop between units is connected and terminated. If only one crosspoint
cable from the Venus is present, check that it is looped to both units.
c. Re−apply power to the replacement VM/SI 3000. Initially this unit will power up with the Fault and Alarm lamps
illuminated. If the unit was system−loaded, it will immediately load the current configuration file (if not, it will
first load the system file and then the configuration file). The other VM 3000 should remain active throughout this
operation.
4. Confirm that the system is still operating normally by using a Jupiter control panel.
Ensure that the status of all crosspoints on the switcher is reported on the top line of the control panel.
5. To verify that the replacement unit is ready for use:
a. Swap control to the replacement VM/SI 3000 by pressing the Active button.
b. Confirm system operation.
c. Assuming all is well leave the Primary VM/SI in control of the system. The installation is now complete.
Should problems be experienced return control immediately to the existing VM/SI 3000. De−power the replacement VM/SI
3000 and check all cabling, especially the LAN cable and terminations. Should this fail to highlight the fault contact Grass
Valley Technical Support.