Related Manuals for GRASS VALLEY 2020ADC
Summary of Contents for GRASS VALLEY 2020ADC
- Page 1 2020ADC 4-CHANNEL AUDIO A-D CONVERTER Instruction Manual SOFTWARE VERSION 2.0 071802402 MAY 2007...
- Page 2 Affiliate with the N.V. KEMA in The Netherlands CERTIFICATE Certificate Number: 510040.001 The Quality System of: Grass Valley, Inc. 400 Providence Mine Road 15655 SW Greystone Ct. 10 Presidential Way Nevada City, CA 95945 Beaverton, OR 97006 Floor, Suite 300...
- Page 3 2020ADC 4-CHANNEL AUDIO A-D CONVERTER Instruction Manual SOFTWARE VERSION 2.0 071802402 MAY 2007...
- Page 4 Benelux/Belgium: +32 (0) 2 334 90 30 Benelux/Netherlands: +31 (0) 35 62 38 42 1 N. Europe: +45 45 96 88 70 Germany, Austria, Eastern Europe: +49 6150 104 444 UK, Ireland, Israel: +44 118 923 0499 Copyright © Grass Valley. All rights reserved. This product may be covered by one or more U.S. and foreign patents.
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Page 5: Table Of Contents
About This Manual ........... . . 2020ADC 4-Channel Audio Analog to Digital Converter . - Page 6 Contents 2020ADC — Instruction Manual...
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Page 7: Preface
Kameleon Media Processing System. As part of this module family, it is subject to Safety and Regulatory Compliance described in the 2000 Series frame and power supply documentation (see the 2000 Series Frames Instruc- tion Manual). 2020ADC — Instruction Manual... - Page 8 Preface 2020ADC — Instruction Manual...
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Page 9: 2020Adc 4-Channel Audio Analog To Digital Converter
Analog to Digital Converter Introduction The 2020ADC converts four channels of analog audio to two balanced or unbalanced digital audio outputs. All signals are connected via the corre- sponding passive rear module in the back of the 2000 frame. The four chan- nels of analog audio enter via plug-in terminal blocks. -
Page 10: Installation
• Placing the media module in the corresponding front slot, and • Cabling and terminating signal ports. The 2020ADC module can be plugged in and removed from a 2000 Series frame with power on. When power is applied to the module, LED indica-... - Page 11 Ð Ð Ð Ð 2020ADC Passive Rear Module 3. Verify that the module connector seats properly against the midplane. 4. Using a crossblade screwdriver, tighten the two screw locks to secure the module in the frame. 5. Locate the corresponding front slot in the frame. The 3 RU frame front...
- Page 12 8. Press firmly on both ejector tabs to seat the module. Figure 4. Installing Front Media Module 2000 Frame (front view) Alignment post and receptacle Board edge Board edge guides guides 2020ADC 2020ADC — Instruction Manual...
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Page 13: Cabling
Installation Cabling All cabling to the 2020ADC module is done on the corresponding passive rear module at the back of the 2000 frame. Refer to Figure 5 on page 13 an illustration of the rear connections referenced in the steps below. -
Page 14: Power Up
REM OVER (yellow) CH1 In > -20dBFS (green) LOCK (green) CH1 Clip (red) CH2 In > -20dBFS (green) CH2 Clip (red) CH3 In > -20dBFS (green) CH3 Clip (red) CH4 In > -20dBFS (green) CH4 Clip (red) 2020ADC — Instruction Manual... - Page 15 Channel level is transitioning through -20 dBFS Channel digitized signal level is less than -0.5 dBFS. CLIP CH1-4 On continuously Channel digitized signal level is greater than -0.5 dBFS. (red) Flashing Channel digitized signal level is transitioning through -0.5 dBFS. 2020ADC — Instruction Manual...
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Page 16: Configuration
• Output mode – channel swapping, summing, and phase inversion, and • Control mode – Local/remote or local control only (remote lockout). Local Onboard Module Configuration The 2020ADC module can be configured locally using the jumper, the rotary switches and four paddle switches shown in Figure 7. -
Page 17: Input Level Adjustments
Position sion, channel swapping or summing. To correctly adjust the 2020ADC for your digital application, determine your maximum signal level (MSL). This is the level above which digital clipping occurs. This module has been set up at the factory with a maximum signal level default value of +24 dBu = 0 dBFS. -
Page 18: Configuring Output Mode
Configuration Configuring Output Mode The 2020ADC provides thirteen possible output configurations as shown Table 4. The module can be configured using the rotary switches shown Figure 7 on page 16. To make a configuration setting, rotate the switch for CH 1/2 and CH 3/4 to the desired output configuration. The 16-posi- tion rotary switch selects one of 13 possible output modes. -
Page 19: Remote Configuration And Monitoring
Configuration Remote Configuration and Monitoring 2020ADC configuration and monitoring can be performed remotely using the 2000NET interface (see Figure 8). This section describes the GUI access to the module configuration functions. Refer to the 2000NET Network Interface Module Instruction Manual for information on setting up and operating the 2000 frame network. -
Page 20: Module Configuration Displays
Configuration Module Configuration Displays The 2000 GUI provides the following links and displays for the 2020ADC module (Figure • Module Configuration displays showing status and slot configuration information (location and user assigned names), and • Signal Configuration displays. The Module Configuration displays operate in the same manner for all remote controllable 2000 modules. - Page 21 (Figure 10 on page 23) provides Link status reporting and controls for setting the following parameters on Ch 1/Ch 2 output of the 2020ADC module: • Output mode, and • Gain adjustment to set maximum signal level input to 0 dBFS digital output.
- Page 22 CH 1 L CH >0.5 DB CH 2 R CH >0.5 DBFS CLIP values read TRUE Then lower the gain just until the Clip values change to and the FALSE >-20 dBFS values for Ch 1/Ch 2 read TRUE 2020ADC — Instruction Manual...
- Page 23 Configuration Figure 10. 2020ADC Ch1/2 Control and Status Display Select the output mode for Ch 1/Ch 2 (See table in text) Indicates Ch 1 (left) and Ch 2 (right) digital audio output level status Indicates Ch 1 (left) and Ch 2 (right) digital...
- Page 24 Ch 3/4 Control and Status CH 3/4 CONTROL AND STATUS display (Figure 11) provides controls for setting the following parameters on Ch 3/Ch 4 output of the 2020ADC This Link module: • Output mode, and • Gain adjustment to set maximum signal level input to 0 dBFS digital output.
- Page 25 ) to interact with the main MONITOR AUDIO INPUTS ENABLED DISABLED Status page to indicate the status of the audio inputs as shown below. Figure 12. 2020ADC User Settings Display Returns module setting to factory default settings. Enables or disables audio input monitoring on main Status page shown below.
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Page 26: Specifications
Specifications Specifications Table 7. 2020ADC Specifications Parameter Value Analog Inputs Number of inputs 4 channels (2 stereo pairs) Connector type Plug-in terminal block Input impedance > 22 k ohm Input level range (for full-scale output) +12 to +28 dBu Common Mode Rejection >... -
Page 27: Service
LED indications. If the module is still not operating correctly, replace it with a known good spare and return the faulty module to a designated Grass Valley repair depot. Call your Grass Valley representative for depot location. Refer to the... -
Page 28: Functional Description
Functional Description Functional Description The 2020ADC converts four channels of analog audio to two 48 KHz AES/EBU signals. Refer to the block diagram in Figure 14 while reading the following functional description. Note As both signal channels are identical, only one channel description is pro- vided. -
Page 29: Differential Input, Analog Gain And A/D Converters
The Controller section handles local control and monitoring, as well as remote control and monitoring via the frame bus (when an 8900NET module is installed in the frame). Module settings are stored in the EEPROM for power up recall. 2020ADC — Instruction Manual... -
Page 30: Power Supply
Power is fed from +24 V rails of the frame’s switching power supply. Each stage of the module receives its own, separate, highly regulated and filtered power source. Two-stage regulation is used in the analog section of the ADC to reduce switching noise. 2020ADC — Instruction Manual... -
Page 31: Index
FAQ database operational conditions FAULT LED LED indications frame status display output mode local configuration frame, 3RU remote configuration frequently asked questions outputs fuse cabling 2020ADC — Instruction Manual... - Page 32 REM OVER LED remote control lockout jumper repair depot rotary switches software download from web software updating specifications troubleshooting User Settings Display web site documentation web site FAQ database web site Grass Valley web site software download 2020ADC — Instruction Manual...