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E-mail: office@devabroadcast.com ,Web: www.devabroadcast.com
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BACKUP
The backup sources priority is user-defined and can be set through the Source Priority section.
If the audio from the main source disappears, the DB8009-MPX will automatically switch to the
first backup source; if it also fails, the unit will switch to the second. Once a source with higher
priority is restored, the unit will switch back to it. The GPI Forced option will force selected audio
input (Main, Backup 1 or Backup 2) via GPI pin.
Audio Loss and Audio Recovery and MPX Loss and Recovery
Allow you to select the appropriate levels of loss and recovery of the audio/MPX signal. Do not
forget to set the corresponding timeouts.
MPX Monitor Mode
Defines which signal will be monitored for silence and respectively switch over. The following
options are available:
•
MPX Mono - the DB8009-MPX will monitor the L+R sub-band only;
•
MPX Stereo - the unit will monitor the L+R sub-band and the PILOT signal.
How the device works
The DB8009-MPX has two MPX (Main and AUX), two Digital (Main and AUX) and two
Analog (Main and AUX) inputs.
Option 1
– Current source is MPX (Main or AUX). MPX signal is routed to MPX output. MPX
signal is partially demodulated to recover L+R mono audio. This audio is then routed to Audio
output.
Option 2
– Current source is Audio (IP Audio, MP3 Player, Main or AUX - Analog/Digital).
The Audio signal is routed to Stereo Coder and Audio output. MPX signal is generated by Stereo
Coder and routed to MPX output.
WHEN APPLYING NEW SETTINGS
– In order new settings to take effect, it is necessary to
press the [Save] button. Please keep in mind that some of the new settings can reset DB8009-MPX.