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User Manual

Sirius 600 AES Input/Output Cards4984, 4990, 4991, 4993 and 4994 Input Cards4995 and 4997 Output Card4998 and 4999 Combined Input/Output Cards

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Sirius AES Input/Output Cards www.snellgroup.com

Issue 6 Rev 4 © 2014 Snell Limited

Sirius AES Input/Output Cards www.snellgroup.com Contents

Contents

1. About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.1 Contact Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.2 Copyright and Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.1 Dolby E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3. AES Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93.1 4984 Input Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93.2 4990 Input Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113.3 4991 Input Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123.4 4993 Input Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.5 4994 Input Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.6 4995 Output Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.7 4997 Output Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173.8 4998 Combined Input/Output Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183.9 4999 Combined Input/Output Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193.10 Audio Modify Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4. Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214.1 Unbalanced AES in a 4U Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214.2 Unbalanced AES in a 7U Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224.3 Unbalanced AES in a 16U Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234.4 Balanced AES in a 4U Frame with Combined Input and Output Cards . . . . . . . 244.5 Balanced AES in a 4U Frame with Separate AES Input and Output Cards . . . . 244.6 Balanced AES in a 7U Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.7 Balanced AES in a 16U Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.8 50-way D-type Connector Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295.1 Digital audio (Balanced and Unbalanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29


Sirius AES Input/Output Cards www.snellgroup.com Contents


Sirius AES Input/Output Cards www.snellgroup.com About this Manual

1. About this Manual

This manual describes the Sirius AES Input/Output Cards fitted in the Sirius 600 router range.

If you have any questions regarding the installation and setup of your product, please refer to the Customer Service contact details (see section 1.1).

1.1 Contact Details

For details of our Regional Customer Support Offices please visit the Snell web site.

http://www.snellgroup.com/support/customer-support/

Customers with a support contract should call their personalized number, which can be found in their contract, and be ready to provide their contract number and details.

1.2 Copyright and Disclaimer

Copyright protection claimed includes all forms and matters of copyrightable material and information now allowed by statutory or judicial law or hereinafter granted, including without limitation, material generated from the software programs which are displayed on the screen such as icons, screen display looks etc.

Information in this manual and software are subject to change without notice and does not represent a commitment on the part of Snell Limited. The software described in this manual is furnished under a license agreement and can not be reproduced or copied in any manner without prior agreement with Snell Limited. or their authorized agents.

Reproduction or disassembly of embedded computer programs or algorithms prohibited.

No part of this publication can be transmitted or reproduced in any form or by any means, electronic or mechanical, including photocopy, recording or any information storage and retrieval system, without permission being granted, in writing, by the publishers or their authorized agents.

Snell operates a policy of continuous improvement and development. Snell reserves the right to make changes and improvements to any of the products described in this document without prior notice.


http://www.snellgroup.com/support/customer-support/

Sirius AES Input/Output Cards www.snellgroup.com About this Manual


Sirius AES Input/Output Cards www.snellgroup.com Introduction

2. Introduction

There are several builds of AES input and output cards in the Sirius 600 range. These are designed to give maximum flexibility across the three frame sizes and to allow a choice between balanced and unbalanced connections. A further choice is given with synchronous, asynchronous or sample rate conversion modes of operation. All cards have on-card circuitry for input and output monitoring via the Sirius 600 monitoring card.

The range of AES input and output signal cards are:

• 4984: Eight channel AES input card, with synchronous/asynchronous/sample rate conversion modes

• 4990: Eight channel AES input card, asynchronous mode only

• 4991: Eight channel AES input card, with synchronous/asynchronous options on each channel

• 4993: Eight channel AES input card, with synchronous/asynchronous options on each channel

• 4994: Eight channel AES input card, with synchronous/sample rate conversion modes on each channel

• 4995: Eight channel AES output card

• 4997: Eight channel AES output card

• 4998: Combined eight channel input and eight channel output AES card, with syn-chronous option on each channel, for use in 4U frame only

• 4999: Combined eight channel input and eight channel output AES card, with syn-chronous option on each channel, for use in 4U frame only

Synchronous operation allows digital audio signals that are locked to the AES reference supplied to the Sirius 600 frame, to be ‘re-framed’ so that ‘click-free’ switching may be achieved. This is the most common mode of operation in a broadcast environment, where all signals are derived from the same clock, but are not necessarily time-aligned when they reach the router inputs. Re-framing will apply an appropriate delay to signals before they arrive at the crosspoint such that switching occurs during a non-critical point in the bit-stream, usually the AES pre-amble. Re-framed signals are automatically re-clocked in order to eliminate signal jitter. Re-framing and re-clocking will operate on any signals in the sample frequency range 32 to 48kHz, providing a reference signal of the same frequency is supplied to the Sirius 600 frame.

When operating in synchronous mode, a Sirius 600 AES router has the full range of audio-modify features available. This will allow dual channel inputs and outputs to operate in mono or swap modes, which may be fixed in the Sirius 600 database or dynamically switched from a control panel. Details on configuring and controlling this feature are contained the main Sirius 600 user manual.

Asynchronous operation allows complete transparency to all AES signals in the range 32 to 54kHz, but will only provide ‘crash’ switching, and with no signal re-clocking. Audio modify features are not available in the asynchronous mode.

Important: When used in conjunction with any card, the mode of operation of the input channel must match that of the output channel.

A synchronous input must pass to a synchronous output, and an asynchronous input must pass to an asynchronous output.


Sirius AES Input/Output Cards www.snellgroup.com Introduction

There are also several builds of connector panel to accompany the I/O cards:

• 1763: 50-way D-type plug for 16 balanced inputs on upper half of 7U frame, and for all inputs on a 4U and 16U frame

• 1766: 50-way D-type socket for 16 balanced outputs on upper half of 7U frame, and for all outputs on a 4U and 16U frame

• 1770: 50-way D-type plug for 16 balanced inputs on lower half of 7U frame only

• 1771: 50-way D-type socket for 16 balanced outputs on lower half of 7U frame only

• 1769: 50-way D-type plug and socket for 16 balanced inputs and outputs, spanning two 4998, or two 4999 cards

• 1762: 8 way unbalanced AES inputs on BNCs

• 1764: 8 way unbalanced AES outputs on BNCs

The rear panels that have a single D-type connector must be fitted into the correct section of the 4U or 7U frame. To ensure that they are not fitted upside down, they are labelled INPUT and OUTPUT.

Finally, the user must match the AES cards against the crosspoints being used, remembering that AES may pass through any higher bandwidth crosspoint, as follows:

4990, 4991, 4995 and 4999 cards can only be used with the following ‘series 1’ crosspoint cards;

• 3906; 128x32 HD/SDV/Audio Crosspoint (4U/7U frame)

• 3907; 128x32 SDV/Audio Crosspoint (4U/7U frame)

• 4907; 128x32 Audio Crosspoint (4U/7U frame) with 4990/1/5modules128x64 Audio Crosspoint (4U frame) with 4999 modules

• 3909; 256x64 SDV/Audio Crosspoint (16U frame)

• 4909; 256x64 Audio Crosspoint Audio/AES/Data/Timecode (16U frame)

4984, 4993, 4997, 4994 and 4998 cards can be used with any of the series 1 crosspoint cards listed above, and the following series 2 crosspoint cards:

• 3912: 128x32 HD/SD/Audio crosspoint module (4U and 7U frame)

• 3913: 256x64 HD/SD/Audio Crosspoint module for Sirius Gold

• 3962: 128x32 3G/HD/SD/Audio crosspoint module (4U and 7U frame)

• 4911: 128x32/128x64 Audio crosspoint module (4U and 7U frame)

• 3969: 256x64 3G/HD/SD/Audio crosspoint module (16U frame)

• 3908: 256x32 HD/SD/Audio crosspoint module (16U frame)

• 4905: 256x32 Audio crosspoint module (16U frame)

• 4913: 256x64 Audio Crosspoint module for Sirius Gold

2.1 Dolby E

If the router is set to synchronous, then the card must also be set to synchronous.

Note: You can not pass Dolby signals through a sample rate convertor.


Sirius AES Input/Output Cards www.snellgroup.com AES Cards

3. AES Cards

All cards have input / output monitoring.

3.1 4984 Input Card

The 4984 is an eight channel AES input card, with synchronous/asynchronous/sample rate conversion modes.

Pairs of input channels on this card may be switched into either SRC (Sample Rate Convert), Synchronous or Asynchronous operating mode using SW1, see Table 1. and Table 2.

The card also has eight numbered green LEDs on the front edge to indicate when a Valid1 AES signal is present on that channel.

Fig 1. 4984 Input Card

Switches Configure Input Channels

SW1-1 and 2 1 and 2

SW1-3 and 4 3 and 4

SW1-5 and 6 5 and 6

SW1-7 and 8 7 and 8Table 1. Switch Settings

Switch Positions Channel Operation

UP UP Both Channels set for SRC

UP DOWN Both Channels set for ASYNC

DOWN UP Both Channels set for ASYNC

DOWN DOWN Both Channels set for SYNC Table 2. Channel Operation

1. The Validity bit is set to convert to analogue

Green Signal LEDs

1

8

Red ‘NOREF’ LED

SW1

Front view:

Switch number = channel number, see Table 1. and Table 2.



Valid AES signals, detected on channels set for SRC or synchronous mode causes the associated channel LED to illuminate. For channels set to asynchronous operation, or if the reference is removed or not present on the router, the associated channel LED flashes.

In synchronous mode the signal frequency must be locked to the AES reference supplied to the frame.

Asynchronous signals, in the range 32 to 54kHz, present on any channel set for asynchronous operation are passed transparently through the router.

For channels that are set to operate in SRC mode, asynchronous signals in the range of 32 to 192 kHz are sample rate converted and locked to the same rate as the AES reference supplied to the frame.

The channel status information is also modified (see Table 4.) and re-inserted into the bitstream.

When used in conjunction with the 4997 output card, the mode of operation of the output channel must match that of the input channel.

Channels set for synchronous and sample rate conversion modes are both locked to the AES reference rate and should be used with output channels set for synchronous operation.

I/P LED Description

On Valid AES present on input channel, channel set for synchronous, or sample rate conversion operation

Flashing Valid AES present on input channel, channel set for asynchronous operation

Off No AES present on input channelsTable 3. IP Channel LEDs



Mode Professional

Type PCM Audio

Sample Rate Either 32, 44.1, 48KHz or ‘Not Indicated’

Derived from reference connected to the router

Emphasis Not Indicated

Lock State Locked – To router reference

Word length 20 bits

Channel ID Not setTable 4. Channel Status Information



3.2 4990 Input Card

The 4990 is an eight channel AES input card, asynchronous mode only.

This card only functions in an ‘asynchronous’ mode. Eight channels of AES digital audio in the sample frequency range 32 to 192 kHz may be connected to the card via a balanced or unbalanced connector. There are no user adjustments, switches or indications available on this card.

No audio modify features are available with this card, all AES data are transparently passed in normal dual channel mode.

If used in conjunction with the 4995 AES output card, the output mode of any channels routed from this card must be set to ‘asynchronous’.

Note: This card only works with series one crosspoint cards.




3.3 4991 Input Card

The 4991 is an eight channel AES input card, with synchronous/asynchronous options on each channel.

Each of the eight input channels on this card may be switched into either synchronous or asynchronous mode using SW1, see Fig 3.

The card also has eight numbered green LEDs on the front edge to indicate when a Valid AES signal is present on that channel. Valid AES signals are detected in both the synchronous and asynchronous modes. In synchronous mode the signal frequency must be locked to the AES reference supplied to the frame, but in asynchronous mode the signal may be of any frequency in the range 32 to 54kHz.

A single red LED on the card front edge indicates that no AES reference is present. When this LED is On, the card will default to asynchronous operation.





Green Signal LEDs

1

8

Red ‘NOREF’ LED

SW1

Front view:

Switch number = channel number

UP =Asynchronous DOWN= Synchronous



3.4 4993 Input Card

The 4993 is an eight channel AES input card, with synchronous/asynchronous options on each channel.

Each of the eight input channels on this card may be switched into either synchronous or asynchronous mode using SW1, see Fig 4.

The card also has eight numbered green LEDs on the front edge to indicate when a Valid AES signal is present on that channel. Valid AES signals are detected in both the synchronous and asynchronous modes. In synchronous mode the signal frequency must be locked to the AES reference supplied to the frame, but in asynchronous mode the signal may be of any frequency in the range 32 to 192 kHz.





Green Signal LEDs

1

8

Red ‘NOREF’ LED

SW1

Front view:





3.5 4994 Input Card

The 4994 is an eight channel AES input card, with synchronous/sample rate conversion modes on each channel.

Each of the eight input channels on this card can be switched into either SRC (Sample Rate Convert) or Synchronous mode using SW1, see Fig 5.

The card also has eight numbered green LEDs on the front edge. When On, indicate that a Valid AES signal is present on that channel. Valid AES signals are detected in both the SRC and synchronous modes.

A single red LED on the card front edge indicates that no AES reference is present. When this LED is On, the card defaults to asynchronous operation. In asynchronous mode, the input LEDs flash for channels with a valid AES signal present.

In synchronous mode the signal frequency must be locked to the AES reference supplied to the frame.

Asynchronous signals, in the range 32 to 192 kHz, present on any channel set for SRC operation, are rate converted and locked to the same rate as the AES reference supplied to the frame.The channel status information is also modified (see Table 6.) and re-inserted into the bitstream.


I/P LED Description

On Valid AES present on input channel, channel set for synchronous, or sample rate conversion operation

Flashing Valid AES present on input channel, channel set for asynchronous operation

Off No AES present on input channelsTable 5. IP Channel LEDs

Mode Professional

Type PCM Audio

Sample Rate Either 32, 44.1, 48KHz or ‘Not Indicated’Derived from reference connected to the router

Emphasis Not Indicated

Lock State Locked – To router reference

Word length 20 bits

Channel ID Not setTable 6. Channel Status Information

Green Signal LEDs

1

8

Red ‘NOREF’ LED

SW1

Front view:


UP =Sample Rate Conversion DOWN= Synchronous



As the output of the 4994, in both operating modes, is locked to the AES reference rate, the operating mode of the relevant 4997 output card channels must also be set for synchronous operation.



3.6 4995 Output Card

The 4995 is an eight channel AES output card.

Provides eight channels of AES output, switch selectable to be synchronous or asynchronous. When used in conjunction with the 4990 or 4991 cards, the mode of each channel must match the corresponding mode of the input channel.


No audio modify features are available in asynchronous mode.

If there is no Valid AES input routed to a synchronous output, the card will produce silent AES on that channel.





Red ‘NOREF’ LED

SW1

Front view:





3.7 4997 Output Card

The 4997 is an eight channel AES output card.

Provides eight channels of AES output, switch selectable to be synchronous or asynchronous. When used in conjunction with the 4993 card, the mode of each channel must match the corresponding mode of the input channel. The user must be aware that a synchronous input must pass to a synchronous output, and an asynchronous input must pass to an asynchronous output.

A single red LED on the card front edge indicates that no AES reference is present. When this LED is On, the card defaults to asynchronous operation.

No audio modify features are available in asynchronous mode.

If there is no Valid AES input routed to a synchronous output, the card will produce silent AES on that channel.




Red ‘NOREF’ LED

SW1

Front view:



PL1

Top view:

Jumper PL1 must always be set to MAN

AU

TO

MA

N



3.8 4998 Combined Input/Output Card

The 4998 is a combined eight channel input and eight channel output AES card, with synchronous option on each channel, for use in 4U frame only.

A combined eight channel input and output card, only for use with 4907 or 4911 crosspoint cards in a 4U frame using balanced input/output connectors. Each input/output channel may be selected to be synchronous or asynchronous, using SW1, see Fig 8.

The card also has eight numbered green LEDs on the front edge to indicate when a Valid AES input signal is present on that channel. Valid AES signals are detected in both the synchronous and asynchronous modes. In synchronous mode the input signal are re-framed to the AES reference supplied to the frame. If the signal is not locked, sample slipping will occur. In asynchronous mode the signal may be of any frequency in the range 32 to 54kHz.

Fig 8. 4998 Combined Input/Output Card

Green Signal LEDs

1

8

Red ‘NOREF’ LED

SW1

Front view:





3.9 4999 Combined Input/Output Card

The 4999 is a combined eight channel input and eight channel output AES card, with synchronous option on each channel, for use in 4U frame only.

A combined eight channel input and output card, only for use with 4907 crosspoint cards in a 4U frame using balanced input/output connectors. Each input/output channel may be selected to be synchronous or asynchronous, using SW1, see Fig 9.

The card also has eight numbered green LEDs on the front edge to indicate when a Valid AES input signal is present on that channel. Valid AES signals are detected in both the synchronous and asynchronous modes. In synchronous mode the input signal are re-framed to the AES reference supplied to the frame. If the signal is not locked, sample slipping will occur. In asynchronous mode the signal may be of any frequency in the range 32 to 54kHz.


Fig 9. 4999 Combined Input/Output Card

Green Signal LEDs

1

8

Red ‘NOREF’ LED

SW1

Front view:





3.10 Audio Modify Features

When operating in synchronous mode, the 4995, 4997, 4998 and 4999 AES cards allow the user to apply audio modify functions to individual channels. These functions enable the router to be used in a mixed mono/stereo environment such that non stereo inputs may be routed to stereo outputs, and vice versa.

The different input and output modes are configured in the Sirius 600 configurable database, see the Nebula user guide for details. No audio modification is available with the fixed database. Each input and output may either have its mode fixed in the database, or be switched dynamically from a 6276 or 6277 control panel. See the Nebula user guide for full configuration and operational details. The modes for inputs and outputs are as follows:

Any type of input may be routed to any type of output, and the digital output is modified appropriately to comply with the AES-3 specification. In all modes except mono, the Channel Status, User and Validity bits will remain with their associated audio sub-channel. The block bit is present on both the left and right channel data in order to maintain the output block structure. In mono mode, channel status data are overwritten appropriately.

Although it may appear that audio is being modified independently by the input and output cards, all processing is actually performed by the AES output card according to data received from the Sirius 600 control card.

Mode of AES input Mode of AES output

Normal stereo Normal stereo

Left channel to both Mono (left+right)/2

Right channel to both Left and right swapped

Left and right swapped


Sirius AES Input/Output Cards www.snellgroup.com Rear Panel Connections

4. Rear Panel Connections

4.1 Unbalanced AES in a 4U Frame

Table 7. shows the BNC connectors at the rear of a 4U frame fully equipped with separate AES input and output cards.

Table 7. represents a physical layout, and does not take account of any level mapping configured on the control or interface module, in which case appropriate offsets must be applied, see the Sirius 600 User Manual.

Fig 10. Unbalanced AES in a 4U Frame

Outputs Inputs

1 9 17 25 33 41 49 57 57 49 41 33 25 17 9 1

2 10 18 26 34 42 50 58 58 50 42 34 26 18 10 2

3 11 19 27 35 43 51 59 59 51 43 35 27 19 11 3

4 12 20 28 36 44 52 60 60 52 44 36 28 20 12 4

5 13 21 29 37 45 53 61 61 53 45 37 29 21 13 5

6 14 22 30 38 46 54 62 62 54 46 38 30 22 14 6

7 15 23 31 39 47 55 63 63 55 47 39 31 23 15 7

8 16 24 32 40 48 56 64 64 56 48 40 32 24 16 8Table 7. Unbalanced AES in a 4U Frame

RS 485

1 2

U B

625 525

ALARMS

CTRL A CTRL B

ADDR

LTC

EXP

3

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I




Table 8. shows the BNC connectors at the rear of a 7U frame fully equipped with separate AES input and output cards.

Table 8. represents a physical layout, and does not take account of any level mapping configured on the control or interface module, in which case appropriate offsets must be applied, see the Sirius 600 User Manual.


Outputs Inputs

1 9 17 25 33 41 49 57 57 49 41 33 25 17 9 1

2 10 18 26 34 42 50 58 58 50 42 34 26 18 10 2

3 11 19 27 35 43 51 59 59 51 43 35 27 19 11 3

4 12 20 28 36 44 52 60 60 52 44 36 28 20 12 4

5 13 21 29 37 45 53 61 61 53 45 37 29 21 13 5

6 14 22 30 38 46 54 62 62 54 46 38 30 22 14 6

7 15 23 31 39 47 55 63 63 55 47 39 31 23 15 7

8 16 24 32 40 48 56 64 64 56 48 40 32 24 16 8

128 120 112 104 96 88 80 72 72 80 88 96 104 112 120 128

127 119 111 103 95 87 79 71 71 79 87 95 103 111 119 127

126 118 110 102 94 86 78 70 70 78 86 94 102 110 118 126

125 117 109 101 93 85 77 69 69 77 85 93 101 109 117 125

124 116 108 100 92 84 76 68 68 76 84 92 100 108 116 124

123 115 107 99 91 83 75 67 67 75 83 91 99 107 115 123

122 114 106 98 90 82 74 66 66 74 82 90 98 106 114 122

121 113 105 97 89 81 73 65 65 73 81 89 97 105 113 121

Inputs OutputsTable 8. Unbalanced AES in a 7U Frame

RS 485

1 2

U B

625 525

ALARMS

CTRL A CTRL B

ADDR

LTC

EXP

3

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I

8

I




Fig 12. shows the BNC connectors at the rear of a 16U frame fully equipped with separate AES input and output cards, as a 256x256 router.




4.4 Balanced AES in a 4U Frame with Combined Input and Output Cards

Fig 13. shows the D-type connectors (type 1769) on a 4U frame fully equipped with 4998 or 4999 combined input/output cards.

4.5 Balanced AES in a 4U Frame with Separate AES Input and Output Cards

Fig 14. shows the spine card number, and D-type connectors on a 4U frame fully equipped with separate AES input and output cards.

The configuration shows a ‘square’ router with the same number of inputs as outputs. However, it is possible to ‘trade’ extra inputs for outputs in this frame, in which case the connector types change as appropriate, see the Sirius 600 User Manual.

Fig 13. Balanced AES in a 4U Frame with 4998 Cards

RS 485

1 2

U B

625 525

ALARMS

CTRL A CTRL B

ADDR

LTC

EXP

3

INPUT

OUTPUT

1769

INPUT

OUTPUT

1769

INPUT

OUTPUT

1769

INPUT

OUTPUT

1769

INPUT

OUTPUT

1769

INPUT

OUTPUT

1769

INPUT

OUTPUT

1769

INPUT

OUTPUT

1769

113-12897-112

49-6433-48

81-9665-80

17-321-16

113-12897-112

49-6433-48

81-9665-80

17-321-16

Inputs

Outputs

Fig 14. Balanced AES in a 4U Frame with 4990/1 Cards

RS 485

1 2

U B

625 525

ALARMS

CTRL A CTRL B

ADDR

LTC

EXP

3

OUTPUT

1766

OUTPUT

1766

OUTPUT

1766

OUTPUT

1766

INPUT

1763

INPUT

1763

INPUT

1763

INPUT

1763

1-1617-32

33-4849-64

49-6433-48

17-321-16

Inputs

Outputs



4.6 Balanced AES in a 7U Frame

Fig 15. shows the spine card number, and D-type connectors on a 7U frame fully equipped with separate AES input and output cards.

Fig 15. Balanced AES in a 7U Frame

RS 485

1 2

U B

625 525

ALARMS

CTRL A CTRL B

ADDR

LTC

EXP

3

OUTPUT

1766

INPUT

1763

INPUT

1770

OUTPUT

1771

OUTPUT

1766

OUTPUT

1766

OUTPUT

1766

INPUT

1763

INPUT

1763

INPUT

1763

INPUT

1770

INPUT

1770

INPUT

1770

OUTPUT

1771

OUTPUT

1771

OUTPUT

1771

1-1617-32

33-4849-64

49-6433-48

17-321-16

Inputs

Outputs

113-12897-112

81-9665-80

65-8081-96

97-112113-128

Inputs

Outputs



4.7 Balanced AES in a 16U Frame

Fig 16. shows the spine cards, and D-type connectors on a 16U frame fully equipped with separate AES input and output cards. All input spine cards are type 1763, and outputs type 1766.

Fig 16. Balanced AES in a 16U Frame



4.8 50-way D-type Connector Pinout

Table 9. lists the pin allocations for the 50-way D-type plug and socket used for balanced AES connections.

Fig 17. 50 way D-type Connector Pinout

Channel Function Pin Channel Function Pin

1

Signal + 18

9

Signal + 26

Signal 2 Signal 10

Signal GND 34 Signal GND 42

2

Signal + 35

10

Signal + 43

Signal 19 Signal 27


3

Signal + 20

11

Signal + 28

Signal 4 Signal 12


4

Signal + 37

12

Signal + 45

Signal 21 Signal 29


5

Signal + 22

13

Signal + 30

Signal 6 Signal 14


6

Signal + 39

14

Signal + 47

Signal 23 Signal 31


7

Signal + 24

15

Signal + 32

Signal 8 Signal 16


8

Signal + 41

16

Signal + 49

Signal 25 Signal 33


Screen Chassis GND 1 Screen Chassis GND 50 Table 9. 50-way D-type Connector Pinout

1

18

34

17

33

50

17

33

50

1

18

Output connector 50-way D-type socket

Input connector 50-way D-type plug


Sirius AES Input/Output Cards www.snellgroup.com Specifications

5. Specifications

5.1 Digital audio (Balanced and Unbalanced)

Input modules

Number and type 8 per module, serial to AES3-2009 format

Performance

Re-clocking On 4984, 4991, 4993, 4994, 4998 and 4999 cards only, none on 4990

Re-framing In synchronous mode only on 4984, 4991, 4993, 4994, 4998 and 4999 cards to AES reference (32, 44.1 or 48 kHz)

Sample Rate Conversion On 4984, 4994 cards to AES reference (32, 44.1 or 48 kHz)

Transparency All paths totally transparent, except:

• In mono mode where (L+R)/2 summation takes place and new channel status inserted

• Sample rate conversion mode where rate conversion is applied and new channel status inserted

Electrical Parameters

Nominal Input Level 4 V pk-pk balanced (to AES3-2009)1 V pk-pk unbalanced (to AES3-2009)

Impedance 110 Ω ±10% (balanced)75 Ω ±10% (Unbalanced)

Minimum Input level 200 mV pk-pk

Input Jitter Tolerance:

Synchronous mode - 4993, 4994, 4984 only

10 UI to 200 Hz,0.25 UI above 8 kHz, as per AES3 specification

Asynchronous mode - 4993, 4984 only

No jitter rejection is present on these modules. Input jitter will be passed to asynchronous outputs.

Asynchronous inputs should not be routed to synchronous or analogue outputs, as this could result in excessive jitter and incorrect operation.

SRC mode - 4994, 4984 only

10 UI to 200 Hz, 0.25 UI above 8 kHz, as per AES3 specification

Output modules

Number and type 8 per module, serial to AES3-2009 format

Performance

Re-clocking 4997, when used with 4991, 4993,4984, 4994 cards in reclocking mode

Re-framing In synchronous mode only on 4984, 4991, 4993, 4994, 4998 and 4999 cards to AES reference (32, 44.1 or 48 kHz)

Electrical Parameters

Nominal Output Level 4 V pk-pk balanced into 110 Ω (to AES3-2009)1V pk-pk unbalanced into 75 Ω (to AES3-2009)

Impedance 110 Ω ±10% (balanced)75 Ω ±10% (Unbalanced)

Output Rise/fall Time 5 ns-30 ns (balanced and unbalanced)


Sirius AES Input/Output Cards www.snellgroup.com Specifications


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