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BLOCK DIAGRAM
MAIN IN LEFT
MAIN IN RIGHT
FAILSAVE RELAYS
100 - 240 VAC
INTERNAL
FUSE
AC/DC PSU
+12V
-12V
EXT DC +/-12V
DC:DC
+3.3V
AUX IN LEFT
AUX IN RIGHT
+10dB
ADC
DSP
ADC
DAC
MICRO
Front
panel
display
Front panel
shaft encoder
Main In A Good
Main In B Good
Main In A Selected
Main In B Selected
Remote Start Aux A
Remote Start Aux B
GENERAL PURPOSE OUTPUTS (GPO)
Solid state relays (Loops closed when active)
GENERAL PURPOSE INPUTS (GPI)
(Pull to ground to activate)
Force Aux A to Output
Force Aux B to Output
Force Main A to Output
Force Main B to Output
5 off
Front Panel Switches
