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7

Output Level Metering

An accurate 24 segment peak reading LED bar meter shows the incoming signal level from
-50dBfs to 0dBfs plus separate overload LEDs for each channel.

QUICK SETUP PROCEDURE

Plug in the left and right channel inputs on the rear of the unit, preferably using balanced wiring.

On the front panel set the “

Input Level for 0dBfs

” 

mode

 switch to the correct setting - 

calibrated

if in a studio and the entire system is calibrated, or 

variable

 in any other situation.

Whilst paying close attention to the 

Output Level Meter

, adjust the relevant input gain (The input

controls are analogue and thus measured in dBU whilst the meter displays the digital output of the
unit in dBfs, hence the +28 to 0 dBU controls). The levels should be set so that the meter is as
close to 0dBfs as possible without drifting into overload, to obtain the optimum output levels.

With your desired digital equipment connected to the any of the 

O/P 1 digital outputs

 (they work

simultaneously), and also connected to the 

wordclock outputs

, on the front panel set the top row

(

O/P1

) of the 

Output Sample Rate

 to the desired rate, and set the 

Bit Depth

.

Where a digital backup of your audio is required, connect the equipment to the 

O/P 2 digital

outputs

 on the rear panel, and set the bottom row (

O/P2

) of the 

Output Sample Rate

 to the

desired rate, and set the 

Bit Depth

.

If you wish to set the wordclock using an external source, plug in the device to the 

Wordclock

Input 

on the rear panel and set either or both 

Output Sample Rates 

to

 EXT

. If the signal is strong

the 

Lock

 led will light, if weak or unstable the Led will flicker or not light at all. In this case the

external device and wiring should be checked.

.

.
.

.

.

.

Содержание A2D2 DMS-3

Страница 1: ...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 2 2 2 3 4 4 4 6 7 8 8 8 9 ...

Страница 2: ... 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 For the USA FEDERAL COMMUNICATIONS COMMISSION RADIO...

Страница 3: ...l 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 192kH...

Страница 4: ...commended that a very good quality cable is used as the plastic conductors used in cheap cables can damage data Additionally performance is compromised over long lengths of cable as the signal strength weakens due to impurities in the conductive material therefore lengths of no longer than five metres are recommended unless using a signal booster Though the connectors are the same TOSLink and ADAT...

Страница 5: ...5 SIMPLE CONNECTION GUIDE ...

Страница 6: ...om 28dBU to 0dBU These require a small screwdriver to operate and so once set are less likely to be accidentally adjusted CHAPTER 2 Output Sample Rate The A2D2 has dual independant stereo digital outputs at different selectable sample rates from 44 1kHz to 192kHz so it is possible to have a main output at 192kHz with another at 44 1kHz as a low resolution copy O P 1 The outgoing sample rate for O ...

Страница 7: ...at the meter is as close to 0dBfs as possible without drifting into overload to obtain the optimum output levels With your desired digital equipment connected to the any of the O P 1 digital outputs they work simultaneously and also connected to the wordclock outputs on the front panel set the top row O P1 of the Output Sample Rate to the desired rate and set the Bit Depth Where a digital backup o...

Страница 8: ...ce your usage of this equipment Please address correspondence to Drawmer Technical Help line Coleman Street Parkgate Rotherham S62 6EL UK Alternatively contact us by E mail on tech drawmer com Further information on all Drawmer dealers Authorised service departments and other contact information can be obtained from our web pages on http www drawmer com A2D2 DMS 3 GENERAL INFORMATION CHAPTER 3 IF ...

Страница 9: ...9 BLOCK DIAGRAM Ref 1v01 B 09 09 08 ...

Страница 10: ...10 ...

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