Grass Valley M-2100 - Manual (Page 30)

2-6 MMCP Installation/Operation Manual
Section 2 — System Operations
Assigning Primaries and Secondaries
Any button that is displaying dim green status may now be selected as a
Primary or Secondary channel.
A Primary channel is active and on-air. Any changes made on the panel
controls will affect this channel. Its status is indicated by the corresponding
Channel Control button tallying bright yellow. Only one Primary channel may
be selected at a time.
A Secondary channel can be selected but is not on-air. Its corresponding
Channel Control button will light dim yellow. If the Primary channel fails, the
operator can select the Secondary and it will be in the same panel state as
the Primary. Up to seven Secondaries can be selected.
Selecting a Primary or Secondary Channel
To select a Primary channel, press a Channel Control button with dim green
status. The button will now tally bright yellow indicating it is the active
Primary channel.
The following behavior applies to a selected Primary:
■ Pressing the button again will deselect it as the Primary.
■ Pressing and holding the Primary button and selecting and releasing
another button with dim green status will assign that button as a Sec-
ondary (dim yellow). The Primary button will not lose its status.
■ If no Secondary is selected, releasing the Primary button will result in
its de-selection as Primary. It will return to a dim green status. Select it
again to return it to the Primary channel.
■ Pressing another dim green or dim yellow (Secondary) tallied Channel
Control button will select the associated channel as the Primary. All other
previously selected channels (Primary and Secondary) will be dese-
lected (return to dim green status).
Pressing an already selected Primary when there are Secondaries will have
the following affects:
■ While held down, Secondaries can be de-selected by pressing and
releasing their button. The Primary remains unaffected.
■ While held down, new Secondaries can be selected by pressing and
releasing their associated button. The Primary remains the Primary.
■ When the Primary button is released, and if no Secondaries have been
selected or de-selected, all Secondaries are de-selected. The Primary
remains selected.