Related Manuals for GRASS VALLEY 8911
Summary of Contents for GRASS VALLEY 8911
- Page 1 Instruction Manual 0 7 1 - 0 5 4 4 - 0 0 F I R S T P R I N T IN G : J A N U A RY 1 9 9 9 8 9 1 1 A E S / E B U R E C L O C K I N G D I S T R I B U T I O N A M P L I F I E R...
- Page 2 Grass Valley Group. Grass Valley Group assumes no re- sponsibility or liability for any errors or inaccuracies that may appear in this publication.
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Page 3: Table Of Contents
About This Manual ........... . . 8911 AES/EBU Reclocking Distribution Amplifier Introduction . - Page 4 Contents 8911 Instruction Manual...
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Page 5: Preface
This manual describes the features of a specific module of the 8900 Series Distribution Amplifier family. As part of this module family, it is subject to Safety and Regulatory Compliance described in the 8900 Series frame and power supply documentation (see the 8900 Series User’s Guide ). 8911 Instruction Manual... - Page 6 Preface 8911 Instruction Manual...
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Page 7: 8911 Aes/Ebu Reclocking Distribution Amplifier
8911 AES/EBU Reclocking Distribution Amplifier Introduction The 8911 module is a digital audio 1x8 distribution amplifier that provides reclocking of the digital signal. The amount of digital audio is ever increasing as studios and broadcast facilities transition to digital transmis- sion. -
Page 8: Functional Description
8911 AES/EBU Reclocking Distribution Amplifier Functional Description The 8911 has one loop-through, high impedance input and produces eight 75-Ohm outputs. The AES/EBU data is reclocked by means of a phase- locked-loop. Refer to Figure 1 while reading the following description. -
Page 9: Linear Regulator
Limits the rise and fall times to meet the AES/EBU specification. Linear Regulator The voltage regulator is a monolithic integrated circuit with a fixed voltage output of +5 volts. This regulator employs internal current limiting and thermal shutdown. Specifications Table 1. 8911 Specifications Parameter Value Input Number 1 loopthrough... -
Page 10: Module Installation
8911 AES/EBU Reclocking Distribution Amplifier Module Installation There are ten cell locations in the frame to accommodate either analog or digital modules. These are the left ten slots. Refer to Figure The two cells on the right are allocated for the power supplies. For addi- tional information concerning the Power Supply module, refer to the Power Supply manual. -
Page 11: Cabling
Figure 3. 8900 Series Frame Rear Connector Note Input/Output mapping of the rear connector configuration is provided in a silk- screened representation on the top side of the 8911 module. Loopthrough Input Connect an input source to one of the loopthrough input connectors, J9 or... -
Page 12: Outputs
75 Ω . Testpoints and Indicators The 8911 DA has ground and +5V testpoints easily accessible on the front edge of the module (see Figure Between the testpoints is a green Power On LED. -
Page 13: Service
Service Service The 8911 modules make extensive use of surface-mount technology and programmed parts to achieve compact size and adherence to demanding technical specifications. Circuit modules should not be serviced in the field. If your module is not operating correctly, proceed as follows:... - Page 14 8911 AES/EBU Reclocking Distribution Amplifier 8911 Instruction Manual...
- Page 15 Index termination block diagram performance power requirements connectors power supply input output controller controller module repair depot environmental specifications frame termination functional description testpoints troubleshooting impedance connectors indicators input loopthrough specification module installation outputs connectors specification 8911 Instruction Manual Index-1...
- Page 16 Index-2 8911 Instruction Manual...