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20

Notes for Virtual Switches, Page Two

1. Because the Alpha-Link AX and MADI-AX units carry three ADAT ports, there are three ports to choose from when

selecting an ADAT clock source. To enable one of the three ports to be selected the first two option switches

operate together.

2. For Alpha-Link MADI-AX only. When 

EXT

is selected as the clock source, this can optionally be MADI instead of a

separate Wordclock feed. If MADI is selected here the clock signal embedded in the incoming MADI stream can

be used as the clock source.

3. The Alpha-Link MADI-SX and LIVE units can optionally lock to one of the four AES/EBU inputs provided on AES/EBU

port ‘A’. To enable one of these four inputs to be selected the first two option switches operate together.

For the Alpha-Link unit to lock to one of these inputs requires that the sample rate converter on that input is

also bypassed – see point 5. below. 

4. For Alpha-Link  MADI-SX  this  option  defaults  to  ‘Wordclock’  whilst  for Alpha-Link  LIVE  the  default  is  ‘MADI  or

Video’. When the clock source is set for 

EXT

, this option allows either MADI or Video to be used as the clock

source – either the clock signal embedded in the incoming MADI stream or an external PAL or NTSC video sync

signal.

When locking to video it will be necessary to specify the video standard and the unit sample rate using switches

5 through 8 on virtual switches page three.

5. Sample rate conversion is provided on the four AES/EBU inputs on AES/EBU port ‘A’. These converters can be

switched out in pairs.

Содержание LIVE

Страница 1: ...XLogic Alpha Link This is SSL XLogic Alpha Link AX MADI AX MADI SX LIVE User Guide ...

Страница 2: ...01A April 2010 Initial release 82BSAM01B February 2011 Added various video sync notes plus other assorted corrections 82BSAM01C October 2011 Clarified Routing Matrix Control settings for the wordclock output at 2Fs corrected ...

Страница 3: ...Page One Alpha Link AX MADI AX and MADI SX 14 Virtual Switches Page One Alpha Link LIVE 15 Notes for Virtual Switches Page One 16 Virtual Switches Page Two Alpha Link AX and MADI AX 18 Virtual Switches Page Two Alpha Link MADI SX and LIVE 19 Notes for Virtual Switches Page Two 20 Virtual Switches Page Three Alpha Link MADI SX and LIVE 21 Notes for Virtual Switches Page Three 22 Appendix A AES EBU ...

Страница 4: ...ii ...

Страница 5: ...p to three Alpha Link 8 RMP Mic preamps Two configurations of Alpha Link LIVE are available to suit either European or US broadcast analogue interface levels Each unit offers simple front panel controls to control unit configuration and the comprehensive input output routing matrix which can be used to set up global connections between the various I O connections and makes all combinations possibl...

Страница 6: ...eferred to as the Alpha Link References to particular audio interfaces MADI ADAT AES EBU or analogue obviously apply only to the Alpha Link models that support the interface IMPORTANT Please register your XLogic Alpha Link unit on our website This will ensure that you receive notification of future updates and other important information and that your guarantee is registered Registration will also...

Страница 7: ...e actual transmission rate This leads to a lower channel count for a given interface but results in a 2Fs interface that is broadly compatible with the original Fs rate interface Later improvements for some interface types lead to proper double speed 2Fs interfaces that did not compromise the channel count but were no longer compatible with older Fs rate interfaces These developments resulted in t...

Страница 8: ...e the default CLOCK SOURCE please refer to the Clock Source Selection discussion on page 8 for further details Please turn down switch off or disconnect any connected amplifiers before re configuring your Alpha Link Changing signal routing and or clock source can potentially produce loud audible clicks To use an Alpha Link unit with an SSL or Soundscape Mixpander PCI audio card connect the Expansi...

Страница 9: ...n non volatile memory when the unit is switched off and recalled the next time it is switched on When the Alpha Link is used in combination with an SSL or Soundscape Mixpander card the SSL Mixer software controls all front panel settings and the settings defined in the software will be restored as soon as the unit is powered up again if still connected to the Mixpander card Power Switch Routing Ma...

Страница 10: ...up The Inputs and Outputs of each type of I O are routed independantly routing Analogue In MADI Out will not also route MADI In Analogue Out for example If Alpha Link is connected to a Mixpander card it can act as multi channel bi directional format converter between the inputs and outputs and the Expansion Bus All routing in this case is determined by the SSL Mixer software and the front panel ro...

Страница 11: ...lease note that the INPUT button works only in combination with the OUTPUT button Where capacity is available two input groups may be assigned to one output group the AES and analogue input groups of an Alpha Link MADI SX or LIVE for example can both connect to the MADI output group Where this is possible it will be indicated by illuminating both input group LEDs whilst stepping through the differ...

Страница 12: ...aster Clock signal via the selected port input If either ADAT or AES EBU are selected as an external clock source it may be necessary to preset which ADAT port or AES EBU input port A only is used to derive the clock signal from In the same manner the External source MADI or Wordclock must also be preset Please refer to the System Settings and Diagnostics section of this guide for details of how t...

Страница 13: ...pt and lock to a wider clock range at up to 10 of the nominal rate provided that the nominal rate corresponds to one of the supported rates 44 1kHz 48kHz 88 2kHz and 96kHz As noted above if the sample rate from an external source falls outside of the expected tolerance all sample rate LEDs will be extinguished although the clock source LED should still indicate if a valid signal is being received ...

Страница 14: ... FS less than 8dBu applied to an analogue input 12dBu or 6dBu for Alpha Link LIVE GREEN 30dB FS greater than 8dBu applied to an analogue input 12dBu or 6dBu for Alpha Link LIVE AMBER 3 0dB FS greater than 19dBu applied to an analogue input 15dBu or 21dBu for Alpha Link LIVE RED 0 1dB FS 22dBu or more applied to an analogue input 18dBu or 24dBu for Alpha Link LIVE Whilst the XS LED is located in th...

Страница 15: ...by a flashing XS LED Diagnostic mode can be cancelled either by power cycling the unit or by simultaneously pressing both the SAMPLE RATE and CLOCK buttons once more Any changes will be lost if the unit is power cycled the internal memory is only written to if diagnostic mode is exited by pressing both SAMPLE RATE and CLOCK buttons Please allow time for any changes to take effect Picking a Page of...

Страница 16: ...tting of each option in the current page is indicated in GREEN by the state of the corresponding LED in the first row of meter LEDs where the Channel 1 LED indicates the state of Option 1 Channel 2 indicates Option 2 etc When an option is selected pressing the INPUT button toggles the state of that option ON or OFF Tables detailing the available options and their default settings will be found on ...

Страница 17: ...ion number of 1 2 would display as where indicates an illuminated LED Current Firmware Versions At the time of writing the following firmware versions are valid for each unit Alpha Link AX V2 4 Alpha Link MADI AX V2 4 Alpha Link MADI SX V2 9 Alpha Link LIVE V2 10 Firmware version V2 9 for these units introduced improved locking of AES inputs 9 through 24 and in association with a hardware modifica...

Страница 18: ... 28 at 2Fs 2 MADI 2Fs data format not AX High Speed 2 Legacy SMUX 3 ADAT sample rate AX MADI AX AES EBU 2Fs data format MADI SX Fs High Speed 2 2Fs Legacy SMUX 4 Analogue Digital connection mode Analogue first lowest 3 Digital first lowest 5 ADAT or AES EBU channel status Use 4 Ignore 6 Sample rate when an Fs rate signal is applied to the wordclock input Fs 5 2Fs 7 Wordclock output at 2Fs 2Fs Rate...

Страница 19: ...2 at 2Fs 1 56 28 at 2Fs 2 MADI 2Fs data format High Speed 2 Legacy SMUX 3 AES EBU 2Fs data format High Speed 2 Legacy SMUX 4 Analogue Digital connection mode Analogue first lowest 3 Digital first lowest 5 AES EBU channel status Use 4 Ignore 6 Sample rate when an Fs rate signal is applied to the wordclock input Fs 5 2Fs 7 Wordclock output at 2Fs 2Fs Rate Clock 6 Fs Rate Clock 8 Phase angle of Wordc...

Страница 20: ...ons determine how the clock signal embedded in the selected clock source is interpreted when the clock is below 57kHz Fs rate When the source sample rate is Fs the 2Fs Legacy SMUX setting is invalid Fs High Speed must be selected to receive valid data The distributed clock will be Fs When the source sample rate is 2Fs with Legacy SMUX format data the Fs High Speed setting is invalid 2Fs Legacy SMU...

Страница 21: ... sample rate information in the data stream which Alpha Link can use to configure itself This information on occasion however might not correlate with the actual sample rate and in such circumstances Alpha Link can be set to ignore this information and in doing so Alpha Link will fall back on the measured clock signals and the High Speed Legacy SMUX switch settings 5 Further to point 2 opposite wh...

Страница 22: ...the notes overleaf for details regarding each setting LED Option Setting LED States See Note 1 2 ADAT clock source ADAT In 1 8 1 ADAT In 9 16 ADAT In 17 24 3 Clock source for External selection Wordclock 2 MADI MADI AX only 4 Unused n a n a 5 Unused n a n a 6 Unused n a n a 7 Unused n a n a 8 Unused n a n a ...

Страница 23: ...e Note 1 2 AES EBU clock source port A only AES EBU In 1 2 3 AES EBU In 3 4 AES EBU In 5 6 AES EBU In 7 8 3 Clock source for External selection Wordclock MADI SX 4 MADI or Video LIVE 4 AES EBU sample rate converters port A only Input 1 2 enabled 5 Input 1 2 bypassed 5 Input 3 4 enabled Input 3 4 bypassed 6 Input 5 6 enabled Input 5 6 bypassed 7 Input 7 8 enabled Input 7 8 bypassed 8 Unused n a n a...

Страница 24: ...nable one of these four inputs to be selected the first two option switches operate together For the Alpha Link unit to lock to one of these inputs requires that the sample rate converter on that input is also bypassed see point 5 below 4 For Alpha Link MADI SX this option defaults to Wordclock whilst for Alpha Link LIVE the default is MADI or Video When the clock source is set for EXT this option...

Страница 25: ...r details regarding each setting LED Option Setting LED States See Note 1 Control Host MADI 1 Expansion Bus 2 Unused n a n a 3 Unused n a n a 4 Unused n a n a 5 6 7 8 External Clock Source non wordclock MADI 2 NTSC and 44 1kHz 3 NTSC and 48kHz NTSC and 88 2kHz NTSC and 96kHz PAL and 44 1kHz 4 PAL and 48kHz PAL and 88 2kHz PAL and 96kHz ...

Страница 26: ... 5 through 8 to off will enable the clock signal embedded in the incoming MADI stream to be used as the clock source 3 When EXT is selected as the clock source and MADI or Video has been selected in virtual switches page two these virtual switches allow Alpha Link to lock to an applied NTSC colour 29 97Hz video sync signal Because the video sync signal obviously carries no sample rate information ...

Страница 27: ...t extracted from channel status bits but measured from the selected AES EBU stereo pair on port A see page 19 Information about Legacy or High Speed mode may be extracted from the channel status bits if the in coming stream contains this information but this should not be relied upon see pages 14 through 17 Inputs without Sample Rate Conversion The inputs of AES EBU ports B and C channels 9 throug...

Страница 28: ...Link unit being used together with a Mixpander card If so it is normal for these controls to be deactivated Otherwise please contact Solid State Logic s technical support When the Soundscape Mixer software is started a dialogue box states that the Alpha Link firmware is not compatible The Alpha Link firmware needs to be updated Firmware updates require that the Alpha Link be connected to an SSL or...

Страница 29: ...c com support The information that you will find there is kept up to date by our support staff to make sure all information is accurate All information is available to you 24 hours a day 7 days a week If you can t find an answer or solution to your issue you can submit a question on the site to our support staff for resolution ...

Страница 30: ...26 ...

Страница 31: ...the SSL Part number for ordering and unit returns 2 This is the number found on the rear of the unit adjacent to the unit Serial Number 3 Nominal maximum analogue I O level for 0dB FS Model SSL Part Number 1 Unit Identifier 2 Analogue I O Level 3 Digital Interfaces AX 726903X1 AFN 047 22dBu ADAT MADI AX 726902X1 AFN 046 22dBu ADAT MADI MADI SX 726901X1 AFN 045 22dBu AES EBU MADI LIVE 726908X1 AFN ...

Страница 32: ...ctive owners and are hereby acknowledged No part of this publication may be reproduced in any form or by any means whether mechanical or electronic without the written permission of Solid State Logic Oxford OX5 1RU England As research and development is a continual process Solid State Logic reserves the right to change the features and specifications described herein without notice or obligation S...

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