Grass Valley VM 3000 System Controllers v.7.4 - Manual (Page 559)

Control Panel Operation MC 3020L
6−139 VM 3000 Installation and Operating Manual
Continuing with the installation and configuration example already discussed, the panel shown in Figure 6−168 could be oper-
ated as follows:
1. Select machine “VT01” on the main panel.
2. Select “TapeMC2” on the expansion panel.
This will assign VT01 to the second control position on the MC 3000 expansion panel; the name “VT01,” and the status
of the machine, will appear over the second SELECT button. This is described as “linking” the machine to a control
station.
The MC 3020L buttons will illuminate to indicate that the link has been made.
3. To break the control link (so that control can be assigned to another location), press UNLINK.
4. While a link is established, the LOCK button can be used if desired to prevent control being shifted to any other panel.
The LOCK button will light whenever a locked machine/control panel pair is selected.
If LOCK is not used, it is possible for the link to be broken by action taken at other control panels. For example, if the
system has been configured to allow automatic linkage (where machine control follows the router), then switching the
video from “VT01” to a particular destination could cause control of the machine to shift to another machine control
panel. Along these same lines, a simple link could be broken by action taken at an MC 3020D Delegation Panel. If the
MC 3020D was used to allow automatic linkage to a control panel group that does not include the MC 3000/3010 now
controlling the machine, the link would be broken. In any case, the LOCK function prevents such interruptions.
To unlock control assignment of a machine, select the machine on the main panel and press LOCK again. UNLINK can
then be used to de−assign the machine.