Technical data

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88
Manual SDs-01 E 3.2.2003 18:26 Uhr Seite 12
16
X-SRC
12
BI-DIR
UNI-DIR ADAT
1
SMUX4
1
SRC
This setting allows to convert an ADAT
TM
source signal (see »AUDIO IN«)
with up to 50.0kHz sampling rate unidirectionally (see »MODE«) into AES3,
S/PDIF and ADAT
TM
simultaneously. The sampling rate will be displayed in
the »REF CLOCK IN« menu. Both optical outputs transmit the same ADAT
TM
source signal. Thus, the MC-4 functions as ADAT
TM
signal splitter, too.
Under »REFERENCE« the »ADAT« option is selected automatically. Please
see the grey box on the left hand side for more information.
Unidirectional Format Conversion from:
ADAT
TM
/ SMUX2 to AES3, S/PDIF, ADAT
TM
/ SMUX2
REFERENCE
IN 3
IN 2
IN 1
IN 4
SMUX4
SMUX2
ADAT
AES3
88.2
48.0
44.1
32.0
192.0
96.0
176.4
MODE
SMUX2
1
AES3
2
AUDIO IN
S/PDIF
S/PDIF
AES11
WCLK
The equal channel number assign-
ment of the multichannel audio
streams is guaranteed in all opera-
tions modes of the MC-4.
!
SMUX2
+
SMUX4
The standard 8 channel ADAT
TM
format,
which uses one optical connector is limited
to sampling rates up to 50.0kHz. To enable
the use of the ADAT
TM
format with higher
clock rates, it is necessary to activate the
SMUX2 or SMUX4 processing additonally
because SMUX2 and SMUX4 are not deco-
ded as status in the ADAT
TM
data stream for
automatic detection.
The SMUX2 process splits the ADAT
TM
stream
into two 4-channel blocks. Thus, both
optical inputs »A« and »B« must be used
to input the ADAT
TM
stream, whereas input
»A« receives the channels 1– 4 and input »B«
receives the channels 5 – 8.
The SMUX4 principle is basically the same
as described above for SMUX2. But due to
the higher sampling rates, not all channels
of a standard 8 channel ADAT
TM
stream can
be received. Only four channels in total can
be processed, whereas the optical input »A«
receives the channels 1 + 2 and input »B«
receives the channels 3 + 4. The channels 5 – 8
can not be processed with the high clock
rates of ADAT
TM
/ SMUX4.
Please make sure that you connect the opti-
cal lines correctly from your ADAT
TM
/ SMUX2
source!
To allow for the ADAT
TM
format con-
version without SRC into AES3 and
S/PDIF, the MC-4 needs to derive a
valid clock signal from the incoming audio
source. Therefore, the corresponding refe
-
rence option is activated in the
»REFERENCE« menu automatically.
!
Unidirectional Format Conversion from:
ADAT
TM
to AES3, S/PDIF, ADAT
TM
X-SRC
12
BI-DIR
UNI-DIR ADAT
1
SMUX4
1
SRC
REFERENCE
IN 3
IN 2
IN 1
IN 4
SMUX4
SMUX2
ADAT
AES3
88.2
48.0
44.1
32.0
192.0
96.0
176.4
MODE
SMUX2
1
AES3
2
AUDIO IN
S/PDIF
S/PDIF
AES11
WCLK
This setting allows to convert an ADAT
TM
/ SMUX2 source signal (see »AU-
DIO IN«) with sampling rates between 50.0kHz and 100.0kHz unidirectional-
ly (see »MODE«) into AES3, S/PDIF and ADAT
TM
/ SMUX2 simultaneously. The
sampling rate will be displayed in the »REF CLOCK IN« menu.
The ADAT
TM
/ SMUX2 input signals are re-clocked and transmitted to
both optical outputs. The channel splitting is equal to this one of the
ADAT
TM
/ SMUX2 input signals. The AES3 and S/PDIF outputs transmit every
ADAT
TM
audio channel on one output.
Under »REFERENCE« the »SMUX2« option is selected automatically.
Unidirectional Format Conversion from:
ADAT
TM
/ SMUX4 to AES3, S/PDIF, ADAT
TM
/ SMUX4
X-SRC
12
BI-DIR
UNI-DIR ADAT
1
SMUX4
1
SRC
REFERENCE
IN 3
IN 2
IN 1
IN 4
SMUX4
SMUX2
ADAT
AES3
88.2
48.0
44.1
32.0
192.0
96.0
176.4
MODE
SMUX2
1
AES3
2
AUDIO IN
S/PDIF
S/PDIF
AES11
WCLK
This setting allows to convert an ADAT
TM
/ SMUX4 source signal (see
»AUDIO IN«) with sampling rates between 100.0kHz and 200.0kHz unidirec-
tionally (see »MODE«) into AES3 and S/PDIF simultaneously. The sampling
rate will be displayed in the »REF CLOCK IN« menu.
The ADAT
TM
/ SMUX4 input signals are re-clocked and transmitted to
both optical outputs. The channel splitting is equal to this one of the
ADAT
TM
/ SMUX4 input signals. The AES3 and S/PDIF outputs transmit with
their first four channels the ADAT
TM
/ SMUX4 audio channels. Each AES3 or
S/PDIF output runs up to 200.0kHz clock rate as the maximum.
Under »REFERENCE« the »SMUX4« option is selected automatically.