User`s guide

63249-420-266A2 Matrix Switcher
06/2010 User's Guide
© 2010 Schneider Electric. All Rights Reserved. 15
Annunciation (Optional)
The Matrix Switcher has the capability of announcing the name of
an input source whenever it is selected. Annunciation provides
instant feedback when changing the source selection using a C-Bus
switch, amplifier or remote control.
Annunciation is broadcast through the speakers in the zone where
the input source has changed. Using MARPA configuration
software, the installer can disable this feature.
Figure 6: Broadcast Audio Input and Adjustment Locations
KEY:
A. LO Priority Level Adjustment
B. LO Priority Mono Input
C. HI Priority Mono Input
D. HI Priority Level Adjustment
The following actions may vary depending on how the installer
configures the Matrix Switcher.
Audio connected to the low priority input is broadcast at the
currently set volume, to all amplifiers that are switched on and
have Source Input 1, 2, 3 or 4 selected.
The installer uses MARPA configuration software to set the
volume of the audio connected to the high priority input that is
broadcast to all amplifiers.
Any amplifiers in standby mode are switched on to ensure the
audio is broadcast as widely as possible. Five seconds after the
broadcast audio ceases, amplifiers return to standby (if
applicable) and to the previously set volume.
A high priority (HI) broadcast uses left and right channel
speakers. A low priority (LO) broadcast uses right channel
speakers only. Audio connected to a high priority broadcast
input must be of sufficient volume to trigger a broadcast.