Drawmer DMS-3 User Manual

DRAWMER

A2D2

DMS-3

AES GRADE 1 DUAL OUTPUT

ANALOGUE TO DIGITAL CONVERTER

Warranty Safety Consideration Radio Frequencies Statement

Chapter 1 - Introduction

Introduction Installation Power Connection Audio Connections & Guide

Chapter 2 - Control Description

Control Description Simple Setup Procedure

Chapter 3 - General Information

If a fault develops Contacting Drawmer Specification Block Diagram

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CONTENTS

This manual is copyrighted © 2008 by Drawmer Electronics Ltd. With all rights reserved. Under copyright laws, no part of this publication may be reproduced, transmitted, stored in a retrieval system or translated into any language in any form by any means, mechanical, optical, electronic, recording, or otherwise, without the written permission of Drawmer Electronics Ltd.

ONE YEAR LIMITED WARRANTY

Drawmer Electronics Ltd., warrants the Drawmer DMS-3 A2D2, AES Grade 1 Dual Output Analogue to Digital Converter to conform substantially to the specifications of this manual for a period of one year from the original date of purchase when used in accordance with the specifications detailed in this manual. In the case of a valid warranty claim, your sole and exclusive remedy and Drawmer’s entire liability under any theory of liability will be to, at Drawmer’s discretion, repair or replace the product without charge, or, if not possible, to refund the purchase price to you. This warranty is not transferable. It applies only to the original purchaser of the product.

For warranty service please call your local Drawmer dealer. Alternatively call Drawmer Electronics Ltd. at +44 (0)1709 527574. Then ship the defective product, with transportation and insurance charges pre-paid, to Drawmer Electronics Ltd., Coleman Street, Parkgate, Rotherham, S62 6EL UK. Write the RA number in large letters in a prominent position on the shipping box. Enclose your name, address, telephone number, copy of the original sales invoice and a detailed description of the problem. Drawmer will not accept responsibility for loss or damage during transit.

This warranty is void if the product has been damaged by misuse, modification or unauthorised repair.

THIS WARRANTY IS IN LIEU OF ALL WARRANTIES, WHETHER ORAL OR WRITTEN, EXPRESSED, IMPLIED OR STATUTORY. DRAWMER MAKES NO OTHER WARRANTY EITHER EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY SHALL BE REPAIR OR REPLACEMENT AS SPECIFIED HEREIN.

IN NO EVENT WILL DRAWMER ELECTRONICS LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY DEFECT IN THE PRODUCT, INCLUDING LOST PROFITS, DAMAGE TO PROPERTY, AND, TO THE EXTENT PERMITTED BY LAW, DAMAGE FOR PERSONAL INJURY, EVEN IF DRAWMER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Some states and specific countries do not allow the exclusion of implied warranties or limitations on how long an implied warranty may last, so the above limitations may not apply to you. This warranty gives you specific legal rights. You may have additional rights that vary from state to state, and country to country.

SAFETY CONSIDERATIONS

REPLACE THE MAINS FUSE ONLY WITH

A FUSE THAT CONFORMS TO IEC127-2.

250 VOLT WORKING, TIME DELAY TYPE

RATED AT 230V=T80mA and 115V=T160mA.

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A2D2

DMS-3

AES GRADE 1 DUAL

OUTPUT ANALOGUE TO

DIGITAL CONVERTER

CAUTION - MAINS FUSE

TO REDUCE THE RISK OF FIRE

AND BODY SIZE OF 20mm x 5mm.

THE MAINS INPUT FUSE MUST BE

For the USA

FEDERAL COMMUNICATIONS COMMISSION RADIO

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off an on, then the user is encouraged to try to correct the interference by one or more of the following measures:

Unauthorised changes or modification to this system can void the users’ authority to operate this equipment. This equipment requires shielded interface cables in order to meet FCC class B limit.

CLASS B NOTICE

This digital apparatus does not exceed the Class B limits for radio noise emissions set out in the Radio Interference Regulations of the Canadian Department of Communications.

CLASSE B AVIS

Cet appareil numérique ne dépasse pas les limites de la classe B au niveau des émissions de bruits radioélectriques fixés dans le Règlement des signaux parasites par le ministère Canadien des Communications.

FREQUENCY INTERFERENCE STATEMENT

Re-orient or relocate the receiving antenna.

Increase the separation between the equipment and the receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

For Canada

CAUTION - MAINS CABLE

DO NOT ATTEMPT TO CHANGE

OR TAMPER WITH THE

SUPPLIED MAINS CABLE.

CAUTION - SERVICING

DO NOT PERFORM ANY SERVICING.

REFER ALL SERVICING TO QUALIFIED

SERVICE PERSONNEL.

WARNING

TO REDUCE THE RISK OF FIRE OR

ELECTRIC SHOCK DO NOT EXPOSE

THIS EQUIPMENT TO RAIN OR MOISTURE.

In the interests of product development, Drawmer reserve the right to modify or

improve specifications of this product at any time, without prior notice.

DRAWMER

DMS-3: AES GRADE 1 DUAL OUTPUT A/D CONVERTER

INTRODUCTION

Microphones are analogue, speakers are analogue, storage is mostly digital and signal processing can be either analogue or digital, software or hardware based. At some point in the signal path, a high quality Analogue-to-Digital converter is required, which faithfully reproduces analogue signals in the digital domain. Step up the Drawmer A2D2...

The A2D2 is a stereo A/D converter giving simultaneous dual stereo outputs at different selectable sample rates from 44.1kHz to 192kHz - so it is possible to have a main output at, say 192kHz with another at 44.1kHz as a low resolution copy.

Features: Dual input configuration allows either a fully variable input level from -2dBu to +28dBu via front panel rotary controls or 24 turn precision presets for a fully calibrated input.

Accurate 24 segment peak reading LED bar meters show incoming signal levels from -50dBfs to 0dBfs plus separate overload LEDs.

Each digital output has selectable word length of 16 or 24 bits, with automatic dither generation.

CHAPTER 1

The internal low jitter clock generator is Grade 1 AES standard.

External clock input.

3 word clock outputs to allow the A2D2 to act as master clock generator.

Burr Brown analogue input stages.

The A2D2 uses a linear power supply to minimise interference with the internal clocks.

1 2 3 5

Input Level for 0dBfs:

Two input level modes are available: In installations with fixed input levels, Calibrated, recessed left/right, 20 turn pots give precise input levels where very little setup is required. In situations where adjustments have to be made “on the fly” standard Variable left/right controls are provided.

Output Sample Rate:

Independantly sets the sample rates for Output 1 7 and output 2 8 from 44kHz through to 192kHz, plus EXT clock 9 . A lock led shows the strength of the incoming external clock.

On Led:

A LED to show that the unit has power.

Word Length:

Independantly sets the Word Length of

Output 1 7 and output 2 8 to either 16 bit Dither or 24 Bit.

Output Meter:

V.U. output meter with 24 segment LED per channel plus Overload - ranging from

-50dB to 0 db.

Analogue Input:

Individual Left/Right Balanced analogue inputs.

Wordclock Input:

The EXT Wordclock input for both sample rate converters.

Digital Output 1:

One each of S/PDIF, TOSLINK or AES simultaneous outputs. The sample rate is

selected via 2 .

Wordclock Outputs:

Three wordclock outputs provided. The sample rate is determined by O.S.R.1 2 .

78910

Digital Output 2:

One each of S/PDIF, TOSLINK or AES simultaneous outputs. The sample rate is

selected via 2 .

IEC and Fuse:

The mains IEC inlet and fuse holder.

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