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dCS 974 User Manual Manual for Software Version 1.0x
dCS Ltd May 2001
Manual part no: DOC1241121A1
Page 31
Document No: OS-MA-A0124-112.1A1
Contact
dCS
on + 44 1799 531 999 email to: more@dcsltd.co.uk
(inside the UK replace + 44 with 0) web site: www.dcsltd.co.uk
Multi-channel Sample Rate Conversion – with more alignment tolerance
FROM
SOURCE
96kS/s
Ch1 & 2
96kS/s
Ch3 & 4
96kS/s
Ch7 & 8
AES 1 AES 2 AES 3 AES 4
AES/EBU Outputs
Wordclock Outputs
1 2 3 4 5 6
7 8 9 10 11 12
External
Sync
Remote
In
Loop
Out
Mains Fuse (2AT)
On Off
more@dcsltd.co.uk
WORDCLOCKS
TO SOURCES
A
dCS 992
Master Clock
FROM
SOURCE
96kS/s
Ch5 & 6
C
PUSH PUSH PUSH PUSH PUSH
AES / EBU INPUTS
AES / EBU OUTPUTS
AES 1 AES 2 AES 3 AES 4
IN OUT
AES CLK OUT SYNC INPUT
AES / EBU REFERENCE LOOP SPDIF
IN OUT
RCA
BNC
TOS
CH1 IN
WCLK IN
CH1 OUT
LOOP IN
CH2 IN
LOOP OUT
CH2 OUT
WCLK OUT
REMOTE
IN
LOOP
OUT
MAINSFUSE (2AT) ONOFF
DSD / SDIF
PUSH PUSH PUSH PUSH PUSH
AES / EBU INPUTS
AES 1 AES 2 AES 3 AES 4
IN OUT
AES CLK OUT SYNC INPUT
AES / EBU REFERENCE LOOP SPDIF
IN OUT
RCA
BNC
CH1 IN
WCLK IN
CH1 OUT
CH2 IN
LOOP OUT
CH2 OUT
REMOTE
IN
LOOP
OUT
DSD / SDIF
PUSH PUSH PUSH PUSH PUSH
AES / EBU INPUTS
AES / EBU OUTPUTS
AES 1 AES 2 AES 3 AES 4
IN OUT
AES CLK OUT SYNC INPUT
AES / EBU REFERENCE LOOP SPDIF
IN OUT
RCA
BNC
TOS
CH1 IN
WCLK IN
CH1 OUT
LOOP IN
CH2 IN
LOOP OUT
CH2 OUT
WCLK OUT
REMOTE
IN
LOOP
OUT
MAINSFUSE (2AT) ONOFF
DSD / SDIF
PUSH PUSH PUSH PUSH PUSH
AES / EBU INPUTS
AES / EBU OUTPUTS
AES 1 AES 2 AES 3 AES 4
IN OUT
AES CLK OUT SYNC INPUT
AES / EBU REFERENCE LOOP SPDIF
IN OUT
RCA
BNC
TOS
CH1 IN
WCLK IN
CH1 OUT
LOOP IN
CH2 IN
LOOP OUT
CH2 OUT
WCLK OUT
REMOTE
IN
LOOP
OUT
MAINSFUSE (2AT) ONOFF
DSD / SDIF
Figure 15 – Multi-channel Sample Rate Conversion with more alignment tolerance
A dCS 992 Master Clock
5
can also be used to sync the source and the dCS 974
units as above. In addition to the sync link cabling (starting with “A”), additional
clocking (cables “C”) allow the dCS 974‘s to extract clocks from the “C” cables
and extract the data from the signal input cables. The master clock outputs
different frequencies on the different cabling types. This allows considerable bit
alignment error, as might occur if some tracks are stored on one machine and
some on another. For all dCS 974 units, set the Sync Source to Wordclock and
the Multiple Channel Sync option to On. They will all set up as slaves. Make
sure that all the other settings are the same on each unit. Note that cable ‘A’
must NOT be driven from the dCS 992’s AES1 output.
5
version 2.0 or higher software