DCS ANALOGUE TO DIGITAL CONVERTER dCS 904 Manuel D’Utilisation

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dCS 904 User Manual
 Manual for Software Version 1.5x and 1.36
dCS Ltd 
June 2000
Manual part no: DOC135904 iss 2B2
Page 61
135904ma2b2.pdf file available from website
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
Command name
Command
Byte
Number of
Parameters
in
Command
Parameters
Parameters
in
Response
AD
C
DA
C
DDC
MC
lk
RS_REF_MODES
77
2
first parameter is terminator (AES)
0 = unterminated
1 = terminated
second is reference mode
1 = ref out is internal
0 = pass through
0
X X
X
RS_OVLD_LEV
87
1
Overload threshold, format X
0
X
RS_VOL
111
1
Digital volume control, format X
0
X X
RS_PHASE
112
1
Phase:
0 = None inverted
1 = Both inverted
2 = left inverted
3 = right inverted
0
X X
RS_REF_MODE
114
1
Select reference input to clock from:
0 = AES1
1 = AES2
2 = SDIF-2 Clock (word clock)
3 = SPDIF1 or AES3
4 = SPDIF2 or AES4
5 = SPDIF3
0
X X
RS_DSD_MODE
119
1
0 = DSD Off
1 = DSD (SDIF)
2 = 4-wire DSD
Echos
message
X X X
RS_BAUD_RATE
141
1
Global command
None
X X X X
REQUEST_DSD_MODE
142
0
response -> DSD mode
Yes
REQUEST_FREQUENCY
143
0
response -> Frequency of unit
Yes
Table 11 – RS-232 Command Set
Format X – the level set number is –0.1dB times the 16 bit (positive integer)
used.  So, for example, 260 would set –26dB below full scale for generator
amplitude.