Calrec Apollo, Operator'S Manual

Page: 184 / 214

Console Facilities 184 APOLLO
Digital Broadcast Production Console
ON AIR AND REHEARSE MODES
In addition to the normal mode
of operation, the console can be
switched into one of two modes which
impose restrictions on certain console
operations.
The broadcast facilities panel contains
two buttons labelled REH (Rehearse) and
ON AIR. Pressing either of these buttons
sets the console to run in the relevant
mode. See Fig 1.
External interfaces can also trigger the
console into switching these modes on
or off with a signal sent via the console’s
general purpose inputs. For GPIO
configuration see
“GPIO” on page 190 .
On Air
On Air mode prevents the operator from
performing certain actions that could
be disastrous to the continued output of
intended programme material. It currently
imposes the following restrictions:
• Talkback to main outputs is disabled
• All other talkback dims control room
loudspeakers
• All tone is disabled
It can also be used to control an external
interface (such as an On Air light in the
studio) via the console’s general purpose
outputs. In this case, when the console
was switched into On Air mode, the
restrictions would be put in place and the
On Air light would be lit.
Rehearse
The Rehearse mode provides similar
functionality to the On Air mode but
imposes a different and usually less
severe set of restrictions on the console.
Currently Rehearse mode sets all talkback
to dim the control room loudspeakers.
It also allows control over a separate
external interface via GPOs than the On
Air mode, such as a Rehearse light.
Neither mode selected
Restrictions can also be put in place when
neither mode is selected. Currently the
restrictions are the same as for rehearse
mode.
FIG 1 - BROADCAST FACILITIES PANEL
CANCEL
REH
ON
AIR
DARK
APFL
RESET RESET
RESET
USB
FAIL WARNING
DSP SURFACE
CONTROL
TB MIC
CANCEL APFL
ENABLE
CANCEL DARK
APFL
RESET RESET
RESET
USB
FAIL WARNING
DSP SURFACE
CONTROL
TB MIC
CANCEL APFL
ENABLE