User Guide

dCS Purcell User Manual Manual for Software Issue 2.2x
dCS Ltd September 2004
Manual filename: Purcell Manual v2.2x.doc Page 7 email: [e-mail]
English version web-site: www.dcsltd.co.uk
The Hardware – Controls and Connectors ...................................................34
Front Panel 34
Key to Front Panel 34
Power Button x 34
Input Button (
Step Back)34
Output Button (
Step)35
Status Indicator x 35
Remote Control Sensor x 35
Main Display x 35
Input / Mode Indicator x 36
Function Button (
Select)36
Rear Panel 37
Key to Rear Panel 37
AES/EBU Digital Input 37
SPDIF Digital Inputs 37
SPDIF Optical Input 38
Wordclock Digital Input / Output 38
AES/EBU Digital Outputs 38
SPDIF Digital Output 38
1394 Interface 39
Power Link 39
SUC 39
Power switch 39
IEC Power Inlet 39
Mains Fuse 39
Additional Information 40
Remote Control 41
Purcell button and LED 41
Standby button 42
Function button 42
Input Selector buttons 42
Filter button 42
Display button 42
Up / Down (
↑ / ↓) buttons 42
Purcell Technical Information .........................................................................44
Digital Interface Specifications 44
Sample Rates 45
Frequency Response – DDC mode 45
Spurious Free Dynamic Range – DDC mode 46
Sample Rate Combinations and Filter Options 47
Clocking 47
Synchronising to source x 47
Power requirements 48
Size and Weight 48
Operating Conditions 48
Noise Shaping 49
Dither 50
Message Handling 51
AES outputs 51
SPDIF outputs 51
General Technical Information.......................................................................52
Wordlength Reduction 52
What does it look like? x 54
IEEE 1394 Overview 56
Synchronising IEEE 1394 interfaces 56
Automatic Input Selection 56
dCS IR Remote Control Codes 58
Upsampler 58
DACs 59
Transports 60
Using your dCS Purcell for the first time ........................................................62
What’s in the Box? 62
Safety Notice 62
Mains Voltage Setting 63