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dCS 974 User Manual Manual for Software Version 1.0x
dCS Ltd May 2001
Manual part no: DOC1241121A1
Page 66
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
T
HE
H
ARDWARE
– C
ONTROLS AND
C
ONNECTORS
Rear Panel
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
V 50/60Hz 20W
See base for
serial number
dCS 974
more@dcsltd.co.uk
Disconnect mains
before removing cover.
See User Manual for
installation instructions
before connecting supply.
WARNING: This unit
MUST be earthed.
DSD / SDIF
Figure 17– Rear Panel
All input and output connectors are mounted on the rear panel. Individual
connectors are identified by the panel legend.
Signal Inputs
AES/EBU Digital Inputs 3 pin XLR Female (4 off – AES 1 – AES 4)
Used for AES3 format signals. AES 1 and AES 2 are used together in Dual
AES mode. All four inputs are used together for Quad AES or DSD Quad
modes.
AES/EBU Reference Loop 3 pin XLR Female / Male (AES Ref Loop IN & OUT)
Loop IN is used for AES3 references and also for Sync Link operation in multi-
channel synchronising. Loop OUT is hard-wired to Loop IN, allowing the
reference to be daisy-chained through several units.
Sync Input BNC
This is intended for future enhancements.
SPDIF Inputs Various (3 off – RCA IN, BNC IN, TOS IN)
Used for SPDIF inputs. Pull the plastic dust cover out of the TOS input before
use.
DSD/SDIF Input BNC (4 off – CH1 IN, CH2 IN, WCLK IN, LOOP OUT)
The upper group of four DSD/SDIF connectors form an input interface. They are
used as a set for SDIF-2 (PCM or DSD) or SDIF-3 (DSD only).
WCLK IN may be used to sync the unit to an external reference wordclock
while taking data from another input. WCLK IN is internally wired to LOOP
OUT, allowing a reference wordclock to be daisy-chained through several units.
When the daisy-chain is not used, the LOOP OUT connector must be fitted with
a 75Ω BNC terminator. WCLK IN will also accept a 10 MHz GPS reference.