Grass Valley 8920ADC v.2.0.1A User Manual
Page 12
12
8920ADC Instruction Manual
Power Up
provides the possible input conditions and the output condition
that results.
REM OVER
(yellow)
Off
Module configuration matches switch and jumper settings.
On continuously
Module configuration may not match switch and jumper settings. Control has been
remotely overridden.
LOCK
(green)
Off
Module does not detect a valid AES in reference signal.
On continuously
Valid AES in reference signal is present and module is locked to it.
LEFT IN
(green)
Off
Left channel level is less than -20 dBFS.
On continuously
Left channel level is greater than -20 dBFS.
Flashing
Left channel level is transitioning through -20 dBFS
RIGHT IN
(green)
Off
Right channel level is less than -20 dBFS.
On continuously
Right channel level is greater than -20 dBFS.
Flashing
Right channel level is transitioning through -20 dBFS
LEFT IN
CLIP
(red)
Off
Left channel digitized signal level is less than -0.5 dBFS.
On continuously
Left channel digitized signal level is greater than -0.5 dBFS.
Flashing
Left channel digitized signal level is transitioning through -0.5 dBFS.
RIGHT IN
CLIP
(red)
Off
Right channel digitized signal level is less than -0.5 dBFS.
On continuously
Right channel digitized signal level is greater than -0.5 dBFS.
Flashing
Right channel digitized signal level is transitioning through -0.5 dBFS.
Table 3. Possible Operating Conditions
Audio Input Condition
Reference Input Condition
Output Condition
Audio inputs present
Valid reference input present
AES/EBU serial digital output sampled at 48 kHz.
No audio input signal present
Valid reference input present
AES/EBU serial digital output sampled at 48 kHz. See S/N specification for level.
Audio inputs present
Reference not present
AES/EBU serial digital output sampled at approximately 47.992 kHz. Internal
freerun clock rate.
Audio inputs present
Invalid reference input
Invalid AES/EBU serial digital output.
Table 2. Indicator LEDs and Conditions Indicated - (continued)
LED
Indication
Condition