0 dBu is referenced to 0.775 vrms for this manual
Front Panel Controls
Power - This LED indicates that the unit is on.
Level - These level adjustments control the sensitivity of the A/D input. The fully clock wise
position provides no attenuation and the fully counter-clockwise position provides to 12-13 db
of attenuation. Calibration level details are listed in the Specifications section.
Clock - This switch selects the clock source of the unit. The choices are Internal, Word, S/Pdif,
and Option. Internal uses the on-board crystal oscillators to generate the selected frequency.
(see Frequency section below) If Word is selected, the unit will expect a word clock input on the
lower bnc jack on the rear of the unit. If S/Pdif is selected the unit will sync to the recovered
clock from either the optical input jack or an AES/S/Pdif input stream from the top bnc jack. If
Option is selected, the unit will sync to the recovered clock from the option input. (AES input
#1/Analog input jack #5).
Data - This switch controls the main function of the AD8. If D/D PEP is selected, the unit will
receive 8 channels of digital input from the option port, PEP process that data and then output
that data on the AES outputs. The A/D section of the unit does not operate during this mode.
If A/D PEP is selected, the analog inputs are converted to digital, then passed through the PEP
process, and then output to the AES outputs. If A/D is selected, the analog inputs are converted
to digital and then passed directly to the AES outputs.
Frequency - This switch selects the operating frequency of the unit. This switch need to be
set manually under all conditions to match the operating frequency regardless of the settings
of both the Clock and Data switches.
Sync error - This LED indicates that the sync source selected is invalid or that the Frequency
switch may not match the selected reference.
