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Summary of Contents for Crystal Vision Indigo DACA214
- Page 1 DACA214 Digital to analogue audio converter Crystal Vision Ltd., Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England. Tel: +44(0) 1223 497049 Fax: +44(0) 1223 497059 sales@crystalvision.tv www.crystalvision.tv...
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Page 2: Table Of Contents
Crystal Vision DACA214 User Manual Contents Introduction System overview Control Statesman Statesman operation Using DACA214 controls Selecting silence options Selecting the sample rate mode Channel swapping, single channel mode and phase inversion Setting channel gain and input termination Audio Monitoring... - Page 3 Crystal Vision DACA214 User Manual Audio Monitoring Setting channel gain and input termination Installation Rear module connections Using GPIs GPI input assignments GPI output assignments (alarms) GPI Connections Hardware configuration Setting channel gain Setting input terminations Wiring XLR breakout leads...
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Page 4: Introduction
Crystal Vision Crystal Vision Introduction Introduction 1 Introduction The DACA214 is a dual digital to analogue audio converter designed to convert two AES/EBU audio signals to four channels of analogue audio. Each digital input has its own phase locked loop, which can automatically lock to the incoming signal sample rate. -
Page 5: System Overview
Crystal Vision Crystal Vision Introduction Introduction System overview The converter is configured as two independent converter channels each with their own error masking, validity checking and regeneration circuitry. Intelligent audio routing provides for channel swapping, single channel mode and phase inversion. -
Page 6: Statesman
2 Statesman The Crystal Vision Statesman PC control software is designed to control a range of Crystal Vision modules via serial control from a PC. The main Statesman application communicates with each module in a frame through an active control panel with or without a LCD display. Statesman will not be able to detect modules used in a frame with only a passive front panel. -
Page 7: Statesman Operation
Crystal Vision Crystal Vision Statesman Introduction Statesman operation Once Statesman is configured it should automatically detect any Statesman compatible modules in the connected frame or frames and display them in the main application left hand explorer-style window. Open any frame by clicking on the ‘+’ sign or by double clicking on a frame. -
Page 8: Using Daca214 Controls
Crystal Vision Crystal Vision Statesman Introduction Using DACA214 controls The configuration controls are as follows: • Silence time – 1.5 to 120 seconds • AES1/2 Mode – 48K or Auto • Phase inversion • Audio channel assignment • Status – Input presence, input sample rate, silence detect, GPI state... -
Page 9: Selecting The Sample Rate Mode
Crystal Vision Crystal Vision Statesman Introduction Selecting the sample rate mode Each DACA214 AES input channel operates in two main modes 48K and Auto. Make the selection with the mouse by placing a selection dot against the required mode for each channel. -
Page 10: Using The Front Control Panel
At power up, the two line 20-character screen will display ‘Crystal Vision’ followed by the firmware version number for the control panel. All eight control panel key LEDs will illuminate. - Page 11 Crystal Vision Crystal Vision Using the front control panel Introduction To continue with control panel operation or configuration, press the ‘CAL’ key once. A second press of the ‘CAL’ key will return to Statesman control. The control panel will display the name of the card that first responds to the polling request together with its location number.
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Page 12: The Daca214 Menu Structure
• Rotary control – shaft encoder used to select options or variable data Note: Please refer to the Crystal Vision Control Panel manual for details of the Panel Setup, Lock Panel and Diagnostic menus. Updating the display The values displayed on an active front panel are only updated when an adjustment is made and when changing menu level. - Page 13 Crystal Vision Crystal Vision Using the front control panel Introduction The DACA214 menu tree Function keys and shaft encoder LEDs are illuminated when active. Note: The use of STATUS or SWITCH monitoring functions does not affect whether the DACA214 is operating in ‘LOCAL CONTROL MODE’, or ‘REMOTE CONTROL MODE’.
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Page 14: Setting Channel Gain And Input Termination
Crystal Vision Crystal Vision Using the front control panel Introduction Shorthand codes The following shorthand codes are used in the control panel menus: Menu code Function description AES1/2 AES/EBU digital audio signal COM (or Both) 1/2 Common to both channels... -
Page 15: Status Menus
Crystal Vision Crystal Vision Using the front control panel Introduction Status menus Pressing F1 from the home menu will bring up the top status menu. The status menus provide the following information: • Audio silence sustain delay • AES1 and AES2 status... -
Page 16: Switch Menus
Crystal Vision Crystal Vision Using the front control panel Introduction Switch menus Pressing F3 from the home menu will bring up the top Switch status menu. This menu provides the following information: • Further AES channel status • Mode selected status •... - Page 17 Crystal Vision Crystal Vision Using the front control panel Introduction • Single or Dual mode selection • Silence threshold delay • Re-establish LOCAL control Control menu structure Description The CNTRL menu allows remote access to the functions normally controlled by front PCB controls.
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Page 18: Using Card Edge Controls
Crystal Vision Crystal Vision Using card edge controls Introduction 4 Using card edge controls The front edge of the card provides power rail monitoring, a configuration dip-switch, analogue audio monitoring outputs, and a rotary control to set the silence threshold delay. -
Page 19: Channel Swapping, Single Channel Mode And Phase Inversion
Crystal Vision Crystal Vision Using card edge controls Introduction Channel swapping, single channel mode and phase inversion Channel routeing logic following the regeneration circuits allows the incoming digital signals to be assigned to outputs in a variety of ways. The possible variations are as follows: •... -
Page 20: Setting The Silence Threshold
Crystal Vision Crystal Vision Using card edge controls Introduction Setting the silence threshold The Hex rotary switch, ‘SIL TIME’ is used to set the required sustained silence period before the LED indicators are illuminated and associated warnings raised. Switch position ‘0’ provides 1.5 seconds of sustained silence. -
Page 21: Installation
Each RM is a single slot high, so that up to 12 such modules, in any mix could be fitted onto an FR2AV frame. Other Crystal Vision RM and Interface PCBs can be mixed in any quantity with DACA214 PCBs, up to a maximum of 12 PCBs, providing the other PCBs do not exceed the power rating of the PSU chosen (normally 150 watts). -
Page 22: Rear Module Connections
Crystal Vision Crystal Vision Installation Introduction Rear module connections RM03 Audio Out connector 25 way D-Type socket (cable has plug on it) Pin Number Function Comments GPI-1 AES 1 XTAL / Auto input Normal / Swap Channels input GPI-3 AES 1 Alarm... - Page 23 Crystal Vision Crystal Vision Installation Introduction RM03 Audio In connector 15 way D-type socket (cable has plug on it) Pin number Function Comments AES1-LO Low (screen) for signal pair 1 AES+1 Stereo 1 AES Input AES-1 AES2-LO Low (screen) for signal pair 2...
- Page 24 Crystal Vision Crystal Vision Installation Introduction RM11 Audio Out connector 26 way High Density D-Type socket (cable has plug on Pin number Function Comments OP2+R1 Stereo 2, Right 1 output OP2-R1 OP2+L1 Stereo 2, Left 1 output OP2-L1 OP2+R2 Stereo 2, Right 2 output...
- Page 25 Crystal Vision Crystal Vision Installation Introduction RM11 Audio In connector 15 way D-type socket (cable has plug on it) Pin number Function Comments AES1-LO Low (screen) for signal pair 1 AES+1 Stereo 1 AES Input AES-1 AES2-LO Low (screen) for signal pair 2...
- Page 26 Crystal Vision Crystal Vision Installation Introduction RM12 Audio Out connector 25 way D-Type socket (cable has plug on it) Pin Number Function Comments GPI-1 AES 1 XTAL / Auto input GPI-3 Normal / Swap Channels input AES 1 Alarm output...
- Page 27 Crystal Vision Crystal Vision Installation Introduction RM35 Function Comments Function Comments number number Chassis No user connection c2 c3 GND NC a2 a3 Chassis AES+2 Stereo 2 AES input No user connection AES-2 Low (screen) for No user connection AES2LO...
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Page 28: Using Gpis
Crystal Vision Crystal Vision Installation Introduction Signal earthing Audio inputs are designed to have floating ‘signal low’ connections for cable screens, with internal RC networks connected between cable screens and chassis ground. This helps reduce the risk of high earth currents when AC power is induced into the cable, or when an offset voltage exists between the product chassis and the local signal source ground or chassis. -
Page 29: Gpi Connections
Crystal Vision Crystal Vision Installation Introduction Silence warning and loss of input warning status are normally routed by default to the GPI port for each channel. To prevent silence detection from raising alarms via GPI lines please refer to the Using Card edge controls chapter. -
Page 30: Setting Input Terminations
Crystal Vision Crystal Vision Installation Introduction The DACA214 module Setting input terminations The DACA214 has two termination jumper links at the right hand (top half) rear end of the PCB. The jumpers are JL1 for AES1, and JL2 for AES2. -
Page 31: Wiring Xlr Breakout Leads
Crystal Vision Crystal Vision Installation Introduction Wiring XLR breakout leads Digital input: XLR to 15 way male ‘D’ plug leads XLR female pin- 15 way male ‘D’ plug pin-out AES CH 1/2 AES CH 3/4 1 (screen) 2 (+) 3 (-) Analogue output: XLR to 25 way male ‘D’plug leads... -
Page 32: Problem Solving
Crystal Vision Crystal Vision Problem solving Introduction 6 Problem solving The front edge of the card provides LED indicators are provided to monitor power rails, input presence/silence, input sample rate and local/remote mode. In the following table the top row yel/green LEDs are for AES1 and the... - Page 33 Crystal Vision Crystal Vision Problem solving Introduction Audio levels are incorrect Check the appropriate input termination and gain settings Input ERR LED is illuminated AES input signal may not match the operating conditions. For example, the input sample rate is 32 kHz or 44.1 kHz, when the relevant channel is set to ‘48 kHz Xtal Mode’.
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Page 34: Specification
Crystal Vision Crystal Vision Specification Introduction 7 Specification 2 x 20 bit stereo pairs. AES3 110ohm or HiZ Inputs Audio: (balanced) D Type, or AES3-id (unbalanced) 75 Ohm BNC. Set by on-board links. Input sampling Crystal re-clocking for 48 kHz sample rate, for... - Page 35 Crystal Vision Crystal Vision Specification Introduction monitoring of input missing and silence detection (optional). Status monitoring Front card edge visual monitoring with LED indicators. Remote control panel also available. Weight 200g DACA214 User Manual R1.9 04 February 2019...
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