Handbook

Redbox User Handbook No 1
29
DIGITAL AUDIO CONVERTERS - RB-SC2
4
DIGITAL AUDIO CONVERTERS
Front Panel Controls & Indicators
The LED on the front panel is normally red to indicate that power is present on the unit.
FREQUENCY Set Button & LEDs
When the button is not illuminated it will select the
internal master frequency that is used in Master
Mode and in Auto Mode when no sync signal
is present. At other times, when the button is
illuminated, the LEDs will show the actual sampling
frequency of the incoming sync source. To view the
Master Frequency press the button once to enter
the setting mode. Any further button presses will
advance the set frequency.
CS DATA Button & LEDs
This button will select the type of channel status
bits to be embedded in the digital audio output –
either professional or consumer. The channel status
type can be set directly or can follow the digital
audio input source.
INPUT1 & INPUT2 Source Select Button & LEDs
This button will select between the balanced AES/
EBU, unbalanced S/PDIF and optical digital audio
inputs for the RB-SC2 sample rate conversion.
The input buttons will ash when no suitable
source is available on the selected connector.
SYNC Button & LEDs
This button will select one of the 4 operating modes
for the RB-SC2 sample rate conversion (master, auto,
auto & lock or slave). 3 modes use an external sync
and this button is also used to select the external
sync source that generates the sampling frequency
used, from one of AES/EBU, wordclock, x-lock or
optionally analogue video or digital video (if sync
card is tted). The Sync button will ash when the
external sync signal selected is not present.
Reset Button
In the unlikely event that the RB-SC2 unit fails to
respond, press the reset button to reboot the unit
(see Fig 1 for location).
Fig 5: FREQUENCY Set Button & LEDs
32kHz
44.1kHz
48kHz
88.2kHz
96kHz
176.4kHz
192kHz
FREQUENCY
CS DATA
FOLLOW
CON
PRO
Fig 6: CS DATA Button & LEDs
Fig 7: INPUT 1 & INPUT2
Source Select Button & LEDs
SLAVE
AUTO
AUTO &
LOCK
AES/EBU
WORDCLOCK
MASTER
SYNC
X-LOCK
ANALOGUE VIDEO
DIGITAL VIDEO
Fig 8: SYNC Button & LEDs
OPTICAL
S/PDIF
AES
INPUT 1
INPUT 2
OPTICAL
S/PDIF
AES