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The unit is set to consumer mode when
the yellow "CON" LED is lit. The format of
the digital outputs of the connected SRC
modules is set to consumer format, inde-
pendent of the coding of the SRC´s input-
or sync-signal.
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The unit is set to professional mode when
the yellow "PRO" LED is lit. The format of
the digital outputs of the connected SRC
modules is set to professional format,
independently of the coding of the SRC´s
input- or sync-signal.
THE MUTE BUTTON
With the aid of the "MUTE" button, a muting of
the connected modules may be performed.
Activating the "MUTE" will also force a recali-
bration on the connected modules !!
The active mute is displayed by the red
"MUTE" LED.
SPECIAL FUNCTIONS
AUTO MODE
The Auto-Mode serves to enhance the oper-
ational reliability by bypassing the loss of an
external sync signal with a similar internal
oscillator frequency.
Auto-Mode is activated/decativated by means
of the "AUTO" button. The activated state is
displayed by the green "AUTO" LED on the
front panel.
When Auto-Mode is engaged, a dropped exter-
nal sync signal will be replaced by a similar
internally generated oscillator frequency. This
is displayed by a flashing "WCLK", "AES-id" or
"AES" sync-source LED on the frontpanel.
As soon as the activated external sync is
present again, the unit will switch over to it and
the dedicated source LED is lit constantly.
A reliable shifting is proceeded under the
following circumstances:
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The external sync input must have had a
valid sync signal for a short time. This time
span is needed to detect the external fre-
quency and to prepare the internal oscil-
lator.
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The external frequency must be in a range
of +/- 200 Hz around the internal fixed
frequencies.
HINT:
The internal frequency which is generated in
case of a dropped external sync is not identical
to the external frequency in terms of a VCXO -
but similar !
It is one of the fixed frequencies of the internal
oscillator.
KEY-LOCK
To avoid unwanted operation, the keys of the
sync module may be locked.
Pushing the "FORMAT" and "MUTE" button
simultaneously for 2 seconds will activate / de-
activate the key-lock function. The active state
is displayed by the green "KEY-LOCK" LED.
THE EXT. AES-SYNC OUTPUT
The sync module offers an "AES SYNC OUT"
on the back panel. Here, the activated external
sync signal or the internally processed clock is
present as a decoupled digital AES 3/11
signal, transformer balanced, impedance 110
ohms, output level > 4 Vss.
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