DCS Computer Hardware dCS 974 Benutzerhandbuch

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dCS 974 User Manual
 Manual for Software Version 1.0x
dCS Ltd 
May 2001
Manual part no: DOC1241121A1
Page 86
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
Digital Interface Specifications
AES/EBU (AES3)
Input
Output
Type
Balanced, differential
Impedance
110
110
Ω
Sensitivity (unloaded)
1 ~ 10
7
V pk-pk
Maximum Wordlength
24
24
bits
Connector
XLR3 female
XLR3 male
Pin 1
Ground or shield
Pin 2
+Signal
Connections
Pin 3
-Signal
Table 11 – AES/EBU Interface Electrical Characteristics.
SDIF and DSD
Input
(Upper block)
Output
(Lower block)
Type
Single ended, ground
referred
Impedance
100 (CH1/2)
~1k (WCLK)
55
Ω
Sensitivity (unloaded)
TTL
TTL
Maximum Wordlength
24
24
bits
Connector
BNC x 4
BNC x 3
CH1 IN
CH1 OUT
CH2 IN
CH2 OUT
Connections
WCLK IN /
LOOP OUT
WCLK OUT
Table 12 – DSD/SDIF Interface Electrical Characteristics.
IMPORTANT! 
The upper DSD/SDIF 
WCLK IN
 connector loops through to the upper
LOOP OUT
 connector to allow an external Wordclock to be daisy-chained.
The last unit in the daisy-chain will need a 75
Ω  BNC termination connected
to the upper 
LOOP OUT
.
SPDIF (electrical)
Input
Output
Type
Single ended, ground
referred
Impedance
75
75
Ω
Sensitivity (unloaded)
0.5
1.0
V pk-pk
Maximum Wordlength
24
24
bits
Connector
RCA Phono & BNC
Table 13 – SPDIF Interface Electrical Characteristics.