
Radio Systems, Inc. GEN-DDA/WC & DDA/WC-4x4 Manual
2/09 Page 5
Operation
Model GEN-DDA/WC
Intheevent ofanexternalAES/EBU signalfailuretoeither inputsection,the unitautomatically
switches to a high precision internal signal generator. Front panel indication and selection of the
stand-byinternalsamplefrequencyisprovided.Theinternalprecisiongeneratormaybeselectedto
generateclocksinlieu of theexternalAES/EBUinput.
Push the “INT” front panel switch to select the internal sync generator. Select any sample rate.
Inaddition,audio thatappearswithan AES/EBUinputwillbe distributedtothe AES/EBUoutputsif
the AES/EBU input is selected as the generator source.
AnexternalWord-Clocksignalinputisprovided,bufferedanddistributedtosixindependentoutputs.
In the event of external source failure, or at the user’s option, a frame-clock reference signal,
selectable from either of the two AES/EBU inputs is regenerated and output to the Word Clock
outputs.
Model DDA/WC-4x4
Anexternal WordClocksignalinputisprovided,bufferedanddistributed tosixindependentoutputs.
In the event of external source failure, or at the user’s option, a frame-clock reference signal,
selectablefromanyof the four AES-EBUinputsisregeneratedand output to theWord-Clockoutputs.
Pushandholdanyoperatingfrequencybuttontopre-settheswitch-oversamplerateintheeventof
an external reference failure.