evertz 7720AD Series Manual
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evertz 7720AD Series Manual

Serial digital aes audio de-embedder
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1.
OVERVIEW......................................................................................................................................... 1
2.
INSTALLATION.................................................................................................................................. 5
2.1. SDI VIDEO CONNECTIONS ..................................................................................................... 5
2.2. FIBER OPTIC VIDEO CONNECTIONS..................................................................................... 6
2.3. AES AUDIO CONNECTIONS.................................................................................................... 6
2.5. ANALOG AUDIO AND LTC CONNECTIONS (7720AD-B-A4-LTC) ........................................ 6
2.6.1. Safety ............................................................................................................................. 7
2.6.2. Handling And Connecting Fibers ................................................................................... 7
3.
SPECIFICATIONS.............................................................................................................................. 8
3.1. SERIAL VIDEO INPUT (7720AD, 7720AD4, 7720AD-A4-2 7720AD4-B
3.2. OPTICAL INPUT (7720AD-OE).................................................................................................8
3.3. RE-CLOCKED SERIAL VIDEO OUTPUTS............................................................................... 8
3.4. UNBALANCED AES AUDIO OUTPUTS................................................................................... 8
3.6. ANALOG AUDIO OUTPUT (7720AD-A4, 7720AD-A4-2
3.7. VITC READER (7720AD-B-A4-LTC ONLY) ............................................................................. 9
3.8. LINEAR TIME CODE OUTPUT (7720AD-B-A4-LTC ONLY).................................................... 9
3.9. SYSTEM PERFORMANCE ....................................................................................................... 9
3.10. ELECTRICAL .......................................................................................................................... 10
3.11. PHYSICAL ............................................................................................................................... 10
4.
STATUS INDICATORS .................................................................................................................... 11
4.1. MODULE STATUS LEDS........................................................................................................ 11
4.2. AUDIO GROUP STATUS LEDS ............................................................................................. 11
5.
CARD EDGE CONTROLS ............................................................................................................... 12
5.1. SELECTING THE AUDIO GROUP THAT WILL BE DE-EMBEDDED.................................... 13
5.4. SELECTING AES LOCKED GROUP MODE (7720AD4
7720AD Series Serial Digital AES Audio De-Embedder

TABLE OF CONTENTS

CONTROL OF THE MODULE ....................................................... 14
®
Revision 1.8
7700 MultiFrame Manual
7720AD-A4-2)....................................... 6
) ......................................... 7
7720AD-B-A4-LTC ONLY)................ 9
AND
7720AD-B-A4-LTC ONLY)....... 9
AND
AND
AND
7720AD-A4) ..... 8
7720AD-OE
)13
ONLY
) ................... 14

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  • Page 1: Table Of Contents

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder TABLE OF CONTENTS OVERVIEW............................1 INSTALLATION..........................5 2.1. SDI VIDEO CONNECTIONS ..................... 5 2.2. FIBER OPTIC VIDEO CONNECTIONS..................6 2.3. AES AUDIO CONNECTIONS....................6 2.4. ANALOG AUDIO CONNECTIONS (7720AD-A4 7720AD-A4-2)........6 2.5.
  • Page 2 7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder 5.5. ADJUSTING THE VOLUME LEVEL ON THE ANALOG OUTPUTS (7720AD-B-A4-LTC, 7720AD-A4 7720AD-A4-2 ONLY)..................15 5.6. SETTING THE VITC READER LINE NUMBER (7720AD-B-A4-LTC ONLY) ......16 JUMPERS............................17 6.1. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED BY THE GLOBAL FRAME STATUS..................
  • Page 3 Mar 08 Information contained in this manual is believed to be accurate and reliable. However, Evertz assumes no responsibility for the use thereof nor for the rights of third parties, which may be effected in any way by the use thereof. Any representations in this document concerning performance of Evertz products are for informational use only and are not warranties of future performance, either express or implied.
  • Page 4 7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder This page left intentionally blank Revision 1.8...

  • Page 5: Overview

    7720AD Series Serial Digital AES Audio De-Embedder OVERVIEW The 7720AD series Audio De-embedders extract embedded audio as specified by SMPTE 272M from a 270 Mb/s serial digital video signal. The companion 7720AE Audio Embedder facilitates audio multiplexing at the source. The 7720AD is available in 6 different versions.

  • Page 6: Figure 1-1:7720Ad Block Diagram

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder Cable Serial Outputs Driver Clock Serial Input 270 Mb/s Audio Group 270 Mb/s (SMPTE 259M) with embedded Audio Cable Driver Formatter Equalizer S / P De-Embedder AES Outputs (SMPTE 276M)

  • Page 7: Figure 1-4: 7720Ad-A4 Block Diagram

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder Serial Input Audio Group 270 Mb/s (SMPTE 259M) with embedded Audio Cable Formatter Driver Equalizer S / P De-Embedder AES Outputs (SMPTE 276M) Cable Driver Formatter Video Audio Module Present...

  • Page 8: Figure 1-6: 7720Ad-Oe Block Diagram

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder Cable Serial Outputs Optical Input Driver Clock 270 Mb/s 270 Mb/s Audio Group (SMPTE 259M) with embedded Audio Cable Optical to Formatter Driver Electrical S / P De-Embedder AES Outputs...

  • Page 9: Installation

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder INSTALLATION The 7720AD and 7720AD4 modules each come with a companion rear plate that has 5 BNC connectors. The 7720AD-OE comes with a companion rear plate that has 4 BNC connectors and one SC/PC (shown), ST/PC or FC/PC optical connector.

  • Page 10: Fiber Optic Video Connections

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder 2.2. FIBER OPTIC VIDEO CONNECTIONS On the 7720AD-OE version there is an input SC/PC (shown), ST/PC or FC/PC female connector for optical 10-bit serial digital video signals with embedded audio compatible with the SMPTE 259M standard.

  • Page 11: Care And Handling Of Optical Fiber

    Never look directly into an optical fiber. Non-reversible damage to the eye can occur in a matter of milliseconds. The laser modules used in the Evertz fiber optic modules are Class I, with a maximum output power of 2mW, and wavelengths of either 1310 nm or 1470 to 1610 nm.

  • Page 12: Specifications

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder SPECIFICATIONS 3.1. SERIAL VIDEO INPUT (7720AD, 7720AD4, 7720AD-A4-2 7720AD4-B and 7720AD-A4) Standard: SMPTE 259M C – 525 and 625 component. Connector: 1 BNC per IEC 60169-8 Amendment 2. Equalization: Automatic 300m @ 270 Mb/s with Belden 8281 or equivalent cable Return Loss: >...

  • Page 13: Balanced Aes Audio Outputs

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder 3.5. BALANCED AES AUDIO OUTPUTS (7720AD4-B and 7720AD-B-A4-LTC ONLY) Number of Outputs: 7720AD4-B 7720AD-B-A4-LTC 2 Standard: AES3-1992 balanced AES Connectors: 7720AD4-B four 3 pin removable terminal strips 7720AD-B-A4-LTC 6 pin removable terminal strip...

  • Page 14: 3.10. Electrical

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder SDI to Analog: 2.25 mSec 3.10. ELECTRICAL Voltage: + 12VDC Power: 6 Watts. (7720AD, 7720AD4, 7720AD4-B, 7720AD-OE) 12 watts (7720AD-A4 and 7720AD-B-A4-LTC) EMI/RFI: Complies with FCC Part 15, class A and EU EMC directive.

  • Page 15: Status Indicators

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder STATUS INDICATORS The location of the status LEDs is shown in Figure 6-1 to Figure 6-3. 4.1. MODULE STATUS LEDS MODULE OK This Green LED will be On when the module is operating properly.

  • Page 16: Card Edge Controls

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder CARD EDGE CONTROLS At the bottom edge of the module there is an 8 position DIP switch, giving the user control over the de-embedder. The ON position is closest to the PCB. Sections 5.1 and 5.2 show the assigned DIP switch functions.

  • Page 17: Selecting The Audio Group That Will Be De-Embedded

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder DIP Switch Function AES 1 and AES 2 Group Selection VITC Reader Line Select Analog Audio Volume Adjust Enable Table 5-4: DIP Switch Functions (7720AD-B-A4-LTC) 5.1. SELECTING THE AUDIO GROUP THAT WILL BE DE-EMBEDDED The SMPTE 272M standard permits up to 4 groups of 4 audio channels to be embedded into the 270 Mb/s video bitstream.

  • Page 18: Enabling Vistalink

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder DIP 3 Channel Swap for AES 1 Channels 1 & 2 normal Channels 1 & 2 swapped DIP 4 Channel Swap for AES 2 Channels 3 & 4 normal Channels 3 & 4 swapped Table 5-6: Channel Swap Switch Settings 5.3.

  • Page 19: Adjusting The Volume Level On The Analog Outputs (7720Ad-B-A4-Ltc, 7720Ad-A4 And 7720Ad-A4-2 Only)

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder In locked group mode, the resetting of the output FIFOs are locked together thus maintaining the phase relationship between all 4 AES channel pairs. Because the two groups are tightly tied together, both audio groups must be present to get any AES audio output.

  • Page 20: Setting The Vitc Reader Line Number (7720Ad-B-A4-Ltc Only)

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder 5.6. SETTING THE VITC READER LINE NUMBER (7720AD-B-A4-LTC ONLY) On the 7720AD-B-A4-LTC switches 3 to 7 are used to select the line that the VITC reader will recover vertical interval time code from. When switches 3 to 7 are set to a valid line as shown in Table 5-10 the VITC reader will be enabled for reading on the selected line and analog audio output 4 will be used to output LTC that is slaved to the decoded VITC.

  • Page 21: Jumpers

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder JUMPERS The 7720AD-OE and early versions of the 7720AD were built using the 7700PB base board (see Figure 6-1 and Figure 6-2). Later versions of the 7720AD and all other versions were built using the 7700PB3 base board (See Figure 6-3).

  • Page 22: Selecting Whether Local Faults Will Be Monitored By The Global Frame Status

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder Figure 6-3: Location of Jumpers on 7700PB3 based versions 6.1. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED BY THE GLOBAL FRAME STATUS FRAME STATUS The FRAME STATUS jumper J22, located at the front of the module, determines whether local faults (as shown by the Local Fault indicator) will be connected to the 7700FR frame's global status bus.

  • Page 23: Vistalink ® Remote Monitoring/Control

    3. A virtual database known as the Management Information Base (MIB) lists all the variables being monitored and which both the Manager and Agent understand. Please contact Evertz for further information about obtaining a copy of the MIB for interfacing to a third party Manager/NMS.

  • Page 24: Monitored Parameters

    7700 MultiFrame Manual 7720AD Series Serial Digital AES Audio De-Embedder 8.2. VistaLINK MONITORED PARAMETERS ® The following parameters can be remotely monitored through the VistaLINK interface. ® Parameter Description Indicates whether the module is in Local or Remote Local/Remote Mode (VistaLINK ) control mode.

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