Crystal Vision TANDEM HD-21 Manuel utilisateur

Crystal Vision Ltd., Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England.

E-mail: [email protected] Website: www.crystalvision.tv Tel: +44(0) 1223 497049 Fax: +44(0) 1223 497059

TANDEM HD-21

HD/SD audio embedder/de-embedder

TANDEM HD-21 User Manual R1.6 Crystal Vision

Contents

1Introduction 3

2Hardware installation 5

2.1 Module configuration 5

2.2 Sub-module link settings 6

2.3 Rear modules and signal I/O 9

RM33 rear module connections 9

RM39 rear module connections 12

2.4 General Purpose Interface (GPI) 13

3Card edge operation 17

3.1 Card edge controls 17

3.2 Card edge buttons 17

3.3 Card edge rotary control 17

3.4 Reading card edge LEDs 18

3.5 Navigating card edge menus 18

3.6 Card edge configuration 19

Menu Tree 19

Card edge status 20

Audio menu 21

Preset menu 23

Alarm menu 23

Miscellaneous menu (Factory Reset) 25

4Using the front control panel 27

4.1 Module selected 27

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TANDEM HD-21 User Manual R1.6 Crystal Vision

Updating the display 29

4.2 The TANDEM HD-21 active panel menu structure 29

Card edge status 31

Audio menu 32

Preset menu 35

Miscellaneous menu 36

Video frame delay 37

Factory Reset 37

5Statesman 39

5.1 Statesman operation 39

Status 40

De-embed and Embed 41

Audio routing and Delay 42

Audio Gain 44

Presets and Headphones 45

Alarms 46

6Trouble shooting 49

Card edge monitoring 49

Fault finding guide 49

7Specification 51

Revision 1 Link position table corrected, page 5.

Correction to table on page 11.

Presets table renumbered, page 13. 21-11-07

Revision 2 Notes on pages 22, 31 and 41 concerning output sub-PCBs

amended. 04-02-08

Revision 3 Correction to Output sub-PCBs table on page 11. 20-02-08

Revision 4 RM39 AES input connections on page 12 amended. 26-03-08

Revision 5 Note regarding link position added, page 5 06-07-09

Revision 6 Board edge video status amended, 60Hz removed, page 12 & 31. 14-08=12

TANDEM HD-21 User Manual R1.6 212/11/2012

Crystal Vision Introduction

1 Introduction

The TANDEM HD-21 is a High Definition video 24 bit two group audio analogue or digital

embedder/de-embedder. It can be configured with two sub-PCB option cards to provide any of

a number of possible functions at once, such as:

•De-embed, audio process, re-embed

•Embed digital or analogue audio into two groups

•De-embed and output digital or analogue audio from two groups

•Embed digital or analogue audio in one group whilst you de-embed and output

digital or analogue audio from a second group

In addition to embedding and de-embedding two audio groups, TANDEM HD-21 incorporates

a number of powerful features. For example, a built-in audio delay is provided to compensate

for video processing, analogue monitoring can be used to preview sources and audio quality is

ensured with forward error correction. TANDEM HD-21 also has a switchable one frame

video delay useful for matching Dolby E audio delays.

Control is available from the card edge, active control panels or by serial control from

Statesman, a dedicated software application.

The main features are as follows:

•HD/SD capable

•De-embeds and re-embeds two audio groups

•Extensive Dolby E handling

•Built-in multi-channel digital audio delay

•Independent audio gain controls

•HANC blanking option

•Audio source preview monitoring

•EDH insertion

•Audio replacement

•Channel swapping/shuffling

•Stereo to mono conversion

•One frame video delay for handling Dolby E

•Control and status monitoring via board edge, frame/remote control panel

or Statesman

•Analogue and AES audio input/output sub-PCBs

•Audio forward error correction protection in de-embedders – handles untimed

or asynchronous SDI with minimum corruption

•GPI control of configuration set-ups

TANDEM HD-21 has a single video signal path with two de-embedders and two embedders,

which allow the extraction and insertion of up to two groups (eight channels) of audio.

Additional sub-PCBs further increase the number of audio channels available for selection to

re-embed to 16. Analogue, AES and Dolby E audio formats can be handled simultaneously,

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Crystal Vision Introduction

although care must be taken not to disrupt the integrity of any Dolby E data by inappropriate

routing or gain manipulation.

TANDEM HD-21 automatically inserts EDH information on its SDI output. HANC blanking

is also implemented either automatically or by selection.

TANDEM HD-21 block diagram

Functions include audio shuffling, video delay, gain compensation and audio replace.

There are two positions available on the TANDEM HD-21 for fitting optional sub-PCBs. The

rear position 1 is associated with inputs 9-12 and outputs 1-4. The front position 2 with inputs

13-16 and outputs 5-8.

An 18-Volt regulator option card is also required when using analogue input or output cards.

The available option cards are:

•HD-DIP2 – 2 x AES/EBU/Dolby E inputs for synchronous 48kHz audio, 75

ohm, 110 ohm, HiZ

•HD-DIP2-RS – 2 x AES/EBU inputs with re-sampler for asynchronous audio

(30 to 108kHz), 75 ohm, 110 ohm, HiZ

•HD-DOP2-110 – 2 x AES/EBU/Dolby E outputs, 110 ohm balanced

•HD-DOP2-75 – 2 x AES/EBU/Dolby E outputs, 75 ohm unbalanced

•HD-AIP2 – Analogue dual stereo audio input

•HD-AOP2 – Analogue dual stereo audio output

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Crystal Vision Hardware installation

2 Hardware installation

The TANDEM HD-21 single slot module uses the single height RM33 and dual height RM39

rear connectors that will fit into all Crystal Vision rack frames. All modules can be plugged in

and removed while the frame is powered without damage.

2.1 Module configuration

The TANDEM HD-21 has positions available for mounting three sub-PCBs. Two of these can

be any of the six available audio PCBs. The third position is for the ±18V regulator needed

when any analogue sub-PCB is fitted.

DcDcV18 Front sub PCB Rear sub PCB

TANDEM HD-21

Link configuration and LEDs

There are five jumper links and three surface-mounted LEDs on the TANDEM HD-21

motherboard. The surface-mounted LEDs are not visible from the front of the frame and are

included for diagnostic purposes only.

Note:

Boards issue 5 and above. PL3, 4 & 5 are renumbered PL 8, 9 & 10. These links are to be

left in position 2-3 (upper position) and have no user configuration.

Link Function

PL3, PL4, PL5, PL6

(issue 4 and below)

GPI/RS422 comms.

GP1 pins 2-3 (upper position). RS422 pins 1-2 (lower position).

Factory set for GPI

PL2 External reference termination. Linked 75R, Unlinked HiZ

LED1 Output serialiser locked

LED2 Input deserialiser locked

LED3 Input deserialiser carrier detect

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Crystal Vision Hardware installation

2.2 Sub-module link settings

HD-AOP2

The analogue audio output module provides two stereo pairs or four mono outputs that may be

used as destinations when routing de-embedded signals. Link jumpers are provided to allow

0dBFS to be set to +18dBu or +24dBu. The variable adjustments on the card are set at the

factory and should not require re-adjustment. Set channel 1 with PL1/P1, channel 2 with

PL2/P2, channel 3 with PL3/P3 and channel 4 with PL4/P4.

HD-AOP2

Selectable jumper links are provided to change input and reference terminations and pre-set

levels, depending on sub-module features.

HD-AIP2

The analogue audio input module provides two stereo pairs or four mono signals that may be

used as a source in subsequent embedding. Link jumpers are provided to allow 0dBFS to be

set to +18dBu (rearwards, towards J1) or +24dBu (forwards, towards J2/3). The variable

adjustments on the card are set at the factory and should not require re-adjustment. Set channel

1 with PL2/RV2, channel 2 with PL1/RV1, channel 3 with PL4/RV4 and channel 4 with

PL3/RV3. Take care to note the adjustment and channel numbering on this sub-board.

HD-AIP2

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Crystal Vision Hardware installation

HD-DOP2-110

This digital audio output module provides two 110 ohm AES stereo pairs or four mono

outputs that may be used as destinations when routing de-embedded signals.

HD-DOP2-110

TANDEM HD-21 does not support an external reference. JL2 will normally be left in its

upper position so giving the second AES2 output. JL3 and JL4 have no function.

HD-DOP2-75

This digital audio output module provides two 75 ohm AES stereo pairs or four mono outputs

that may be used as destinations when routing de-embedded signals.

HD-DOP2-75

TANDEM HD-21 does not support an external reference. JL2 will normally be left in its

upper position so giving the second AES2 output. JL3 and JL4 have no function.

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Crystal Vision Hardware installation

HD-DIP2

This digital audio input module provides two AES stereo pairs or four mono channels that

may be used as sources in subsequent embedding.

HD-DIP2

Link jumpers are provided to select between 110 ohm (upper 2 pins), HiZ (balanced – centre

pins only) or 75 ohm (unbalanced – lower 2 pins). J3 must be selected for 24-bit.

HD-DIP2-RS

This digital audio input module provides two AES stereo pairs or four mono channels with an

integral re-sampler for use when the AES input is either asynchronous, or at a sample rate

other than 48kHz.

HD-DIP2-RS

The sample rate inputs can work with signals from less than 30kHz to 108kHz. It is

particularly useful for asynchronous 48kHz inputs, and other sample rate inputs such as

44.1kHz and 96kHz.

The signal output from the HD-DIP2-RS to the TANDEM HD-21 is at 48kHz derived from

the video content of the SDI signal into which it is to be embedded.

Because of the processing of the audio waveform, error words indicated by V-bit set high are

ignored. Occasional errors marked by V-bit high such as would be the case with a noisy or too

long AES input path, are masked out by the processing.

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Crystal Vision Hardware installation

If the V-bit is consistently high, to indicate continuous error states, or to indicate non-audio

data, then the processor will give a silent output. All other cards, except RS4, pass audio data

unaltered even when V bit is set or held high.

Link jumpers are provided to select between 110 ohm (upper two pins), HiZ (balanced –

centre pins only) or 75 ohm (unbalanced – lower two pins). For TANDEM HD-21 jumper JL3

must be in the 24-bit (TAD) position.

Note:

In general, balanced outputs require the use of rear modules with a D-Type connector

and unbalanced outputs are for use with BNCs.

HiZ is achieved by removing termination jumpers – they can be parked for safe keeping

by replacing them using only one pin.

2.3 Rear modules and signal I/O

The Indigo 4 4U frame will house up to 24 single height modules with up to three power

supplies. The Indigo 2 2U frame will house up to 12 single height modules and dual power

supplies. The Indigo 1 1U frame will house six single height modules and a single/dual power

supply. The Indigo desk top box has a built-in power supply and will house up to two single

height modules.

Note:

For details of fitting rear connectors please refer to the appropriate frame manual.

RM33 rear module connections

The RM33 being a single height module will allow maximum packing density with the

maximum number of outputs available.

RM33 rear module connector

Description

RM33

•24 TANDEM HD-21

modules per Indigo 4

frame

•12 per Indigo 2 frame

•Six per Indigo 1 frame

•2 per Indigo DT

•

All frame slots can be

used

BNC I/O assignment

HD SDI OUT Serial digital output

NC No user connection

HD SDI IN Serial digital input

TANDEM HD-21 User Manual R1.6 912/11/2012

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