Lexicon Converter manual 20/20 AD Rear Panel Connectors, Bal/Unbal

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20/20 AD User Guide

Controls and Connectors

20/20 AD

Rear Panel

Connectors

AC Power

Standard 3-pin IEC power connector.

Analog Input

3-pin XLR connectors. In 2- channel mode, only inputs 1 and 2 are active.

BAL/UNBAL

Push on/push off switch. Set button to correspond to input signal type. A mismatch be- tween the input signal and the setting of this switch, will be indicated on the front panel by the BAL LED.

V ~

3 + 4

DO

1 + 2

DO

PUSH

WORD CLOCK

AES

IN

OUT

SYNC

 

 

IN

 

 

PUSH

4

IN

3

PUSH

UNBAL

BAL

PUSH

2

IN

1

PUSH

UNBAL

BAL

Digital Output

Two 3-pin XLR connectors, professional format AES bal- anced digital outputs.

Two consumer format optical (fiber-optic) outputs.

Two consumer format unbalanced coaxial RCA outputs.

Note: In 2-channel mode 3 & 4 and 1 & 2 are identical.

The input and output connectors conform to published stan- dards for professional and consumer formats. The 20/20 AD, however, provides the user-selected format at all connectors, e.g. the AES format, if selected, will be available at the consumer-type outputs, as well as at the XLR outputs.

Sync/Digital Audio Input

3-pin XLR connector, professional format AES/EBU balanced digital input.

75, unbalanced BNC connectors for word clock in/out.

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Contents 20/20 AD Precautions Safety Summary Electrostatic Discharge ESD PrecautionsContents Introduction AES/EBU Interface ProfessionalControls and Connectors Power Mounting 20/20 AD Front Panel Controls ConverterDisplay Level MetersCompressor LinkTo activate Alternate modes Synchronization Output FormattingAlternate Modes Press and hold Then press one of these20/20 AD Rear Panel Connectors BAL/UNBALAudio Connections ConnectorsXLR Pinout AES/EBU CablesPdif Signal Type Pin Pin3 Signal Type Attenuator DBu DBVTermination and Grounding via Internal Jumpers These instructions are for use by qualified personnel only Word ClockAnalog Jumpers Balanced Unbalanced Input Signals Atten Front panel AdjustmentsPK Hold ChanSynchronization and Sample Rate AES Sync Word ClockStates Internal and External modesAbout Dither Psychoacoustically Optimized Noise Shaping Pons00k 10.0k 12.0k 14.0k 16.0k 18.0k Automatic Offset Removal Compressor Modes Dynamic Range CompressionInput Compressor Knob Values Gain Threshold ReleaseNon-linear Transfer FunctionsUsing the 20/20 AD Lexicon Link Digital Sinewave Generator Realigning Two DAT RecordingsGain Operating the 20/20 AD in the Digital Mode Specifications CmrrDefinition of Terms