Genex AES Expansion Card Operational Manual
Contents
1. G nex Genex Research Limited Genex AES Expansion Card Operational Manual Revision 1 1 AES Expansion Card Rev 1 1 Contents Contents CONTENT Skis ict te ciicccteteteceteccieceeSccteceteccteastecateanteceaeceeSacteaniececeanieccceanieaeanceeseceeanieceseanseanceanieavanceucccasien l IMPORTANT NOTE Sioa A 1 UNPACKING ainetta A EA AE 1 INSTALLATION Cd 1 FECHNICALSUPPOR a ts 1 LAYOUTOF THIS MANUAL A E E E RE E E E E EEE 2 INTRODUCTION TO THE GENEX GX8 AES cccccccccccccccccccccccccncnnonononnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnrrrrnnnnnnns 3 DESCRIPTION i 3 INSTALLING THE GX8 AES CARD coste caida dia a wus a A TEET id a e at ad aia E 3 CARD CONNECTIONS wisiicicsciisstsbcbesstensbensbeasbensbenebansbansdensbencbenssancbenebansbansbancbansbansbansbancbansbaasbaasbaaeaa 4 REAR PANE Cnn eer ecard See ao 4 Diagram and Table of 25 way D type Pinout oooccconnnonccccnncccnnncnnnccnnnnononnnnnnnnnnnnnnnnnnnnnnnnnn nr rannnn nn cnnnnnnnnnnnns 4 OPFERATION ain 5 USING THE GX8 AES CARD IN A GXAB8 0 eee ceeeecee cette eect eee e eee e eee aaee sees ee naar nn nn rra nn rra nnnnn rn nn carr rra nnnnnr nn 5 Ia OU ete PREFER EEE REPUPEREER E AA A A 5 Paqrat bit Split digital JECONINO cc rica hans 5 Pro Tools GiQitalsiMPUts ips da dada add 5 Format OOE SO a a itn Mae de LO ae BEM Moke Be GL San UME A 5 OUTPUTS aotearoa iaa cities NANA in 6 Duplicate AES EBU QUIPUES ei iua ereire aiaee a a a a a a a a a a 6 Eight channels of dual wire f2. 2 Select the appropriate clock source and input source 3 Using BIT SPLIT select DECODE The AES expansion card outputs and the outputs any card plugged into the other slot will now output a fully restored 24 bit signal Note that if a 24 bit 96kHz recording has been made on a legacy 26 bit 8 channel re corder bit split encode and dual wire operation the bit split is still decoded but the 24 bit output will remain as 96kHz dual wire i e the clock rate will stay at 48kHz The AES INPUT must be set to SINGLE Pro Tools digital outputs The GX8 AES card provides a GXD8 connected to Pro Tools with four AES outputs eight audio channels out of Pro Tools These will carry the same audio as the analogue out puts Format Conversion Input By combining the GX8 AES card with another expansion card e g ADAT TDIF SDIF it is possible to convert between these formats Note that it is not possible at this time to convert digitally from single wire to dual wire dual wire to single wire or any other combination Duplicate AES EBU inputs With the GXD8 running in single wire mode the GX8 AES card provides the GXD8 with a second set of AES EBU inputs Eight channels of dual wire four channels of quad wire With the GX8 AES card plugged into Slot 1 or 2 it is possible to input 8 channels of dual wire and four channels of quad wire This is the only way to input eight channels of 192kHz audio The four AES EBU inputs on the GX8
3. AES card may be used in combina tion with the main GXD8 AES EBU inputs or instead with digital inputs of another card plugged into the other slot The INPUT SOURCE button determines what bank of inputs main slot 1 or slot 2 drive what analogue outputs The following table shows what is output from what slot in what mode Genex Research Limited Page 7 AES Expansion Card Rev 1 1 Operation Wire Mode ae Analogue Outputs 1and 2 3 and 4 5 and 6 7 and 8 Main AES Main AES Main AES Main AES Main AES Single Slot One Slot One Slot One Slot One Slot One Slot Two Slot Two Slot Two Slot Two Slot Two Main AES Main AES Main AES Slot One Slot One Dual Slot One Slot One Slot One Slot Two Slot Two Slot Two Slot Two Slot Two Slot One Slot One Main AES Main AES Slot One Quad Slot One Slot One Slot Two No Output Slot Two Slot Two Slot One e These combinations in conjunction with the INPUT SOURCE button allow eight channels of dual wire to be input via two slot cards and therefore from two ADAT or TDIF sources Pro Tools digital Inputs e In Pro Tools mode when the main AES inputs on the GXD8 are connected from an ADC e g GXA8 for analogue input the GX8 AES card provides a second bank of AES in puts Alternatively the GX8 AES card may be used to connect to the GXA8 instead The GX8 AES may selected as the Pro Tools input source in two ways 1 Select the GX8 AES card slot the one not occupied by t
4. ES Outputs Slot One Outputs Slot Two Outputs sad Single Channels 1 8 Channels 1 8 Channels 1 8 88 2 96kHz Dual Channels 1 4 Channels 1 4 Channels 5 8 176 4 192kHz Quad Channels 1 2 Channels 1 2 Channels 3 4 e Note that Slot 1 always outputs the same as the main AES outputs This is for situations where the expansion card is not AES but a different format e g ADAT Pro Tools digital outputs e In Pro Tools mode when the main AES outputs on the GXA8 are connected to a DAC e g GXD8 for analogue output the GX8 AES card provides a second bank of AES outputs Alternatively the GX8 AES card may be used to connect to the GXD8 instead Genex Research Limited Page 6 AES Expansion Card Rev 1 1 Operation Using the GX8 AES Card in a GXD8 Using the AES expansion card in the GXD8 provides additional digital i o for the converter This is useful for Output Paqrat bit split digital decoding By using the GX8 AES card in the GXA8 24 bit recordings made using Paqrat bit splitting technology e g with the GXA8 onto a legacy 16 bit recorder can be reconstituted back to 24 bits in the digital domain and output to a 24 bit digital editor or workstation 1 Having fitted the GX8 AES card into the GXA8 either connect the AES outputs of the recorder to the main AES inputs on the GXD8 or to the AES expansion card via a Genex AES breakout cable Ensure the channels are connected up in the correct or der
5. are connected up in the correct order 2 Using CLOCK SOURCE select the GX8 AES card as the clock source i e Slot 1 or Slot 2 3 Using INPUT SOURCE select the GX8 AES card as the input source i e Slot 1 or Slot 2 Alternatively the GXA8 may be clock master if this method is easier jitter is not an issue as there is no conversion to or from analogue 4 Using BIT SPLIT select DECODE The main AES outputs of the GXA8 and indeed the outputs on the GX8 AES card itself as well as any card plugged into the other slot including the Pro Tools card will now out put a fully restored 24 bit signal Note that if a 24 bit 96kHz recording has been made on a legacy 26 bit 8 channel re corder bit split encode and dual wire operation the bit split is still decoded but the 24 bit output will remain as 96kHz dual wire i e the clock rate will stay at 48kHz The AES OUTPUT mustbe set to SINGLE Pro Tools digital inputs The GX8 AES card provides a GXA8 connected to Pro Tools with four AES inputs eight audio channels into Pro Tools The GX8 AES may selected as the Pro Tools input source in two ways 1 Select the GX8 AES card slot the one not occupied by the Pro Tools card as the in put source using the INPUT SOURCE button on the front panel This will select all eight audio channels as from the GX8 AES 2 Leave the INPUT SOURCE set to ANALOGUE Use the Other Options panel within the Pro Tools Hardware Setup control panel to
6. he Pro Tools card as the in put source using the INPUT SOURCE button on the front panel This will select all eight audio channels as from the GX8 AES 2 Leave the INPUT SOURCE set to AES Use the Other Options panel within the Pro Tools Hardware Setup control panel to select Digital for each channel pair This method al lows a mix of main AES inputs and GX8 AES card inputs Note that the PPMs on the GXA8 will always show the main AES input level in this case Ensure that the digital source is locked to the rest of the Pro Tools system See the Genex Worksta tion Interface card user manual for more information Genex Research Limited Page 8 AES Expansion Card Rev 1 1 Specification Specification A A up to 24 Bits Oare TLAC EEEE 8 inputs 8 outputs SO up to 96kHz Power requireMentS oooocooccccnnncccnnnconnncnnnnnnnnnnnnnnnncnnnncnnnnnnn nn rca nn n rn anne nn nnnnnnnnannnnes 5V dc via slot interface Genex Research Limited interstage Page 9 Telefon 3946 0000 fax 3946 0040 www interstage dk pro audio with a smile
7. moved when the main unit is switched off Technical Support e Technical Support is available on line through the Genex web site at e http www genex co uk or by emailing support genex co uk Genex Research Limited Page 1 AES Expansion Card Rev 1 1 Layout of this Manual Layout of this Manual e Sections in this manual appear in the following order 1 A brief introduction to the Genex AES Expansion Card GX8 AES and how to fit it into either of the slots 2 A pin out of the 25 way connector on the back panel 3 An explanation how the main uses for an AES Expansion card in a GXA8 or GXD8 Genex Research Limited Page 2 AES Expansion Card Rev 1 1 Introduction to the Genex GX8 AES Introduction to the Genex GX8 AES Description The GX8 AES card provides four AES EBU inputs and outputs to the Genex GXA8 and GXD8 audio converters This is in addition to the AES EBU outputs GXA8 or in puts GXD8 found on the converters already as standard It slides easily yet firmly into the back of the GXA8 and GXD8 converters and uses a 25 way D type connector for fully balanced AES EBU i o The pinout is identical to similar AES EBU connectors found on other Genex equipment A breakout cable is available separately The GX8 AES card provides AES EBU access to all eight channels when running in dual wire mode and to four channels when running in quad wire mode It is therefore essential for multi channel 176 4kHz or 192kHz p
8. our channels Of QUaAd WilB ooooonnconcccnnnccconnooonccnnncnnnnnnnnnnonnncrnnnnnnnncnnnnnnnannnns 6 Pro Tools digital OUtpUtS ssania nnsa ca cane EEA neti iia T NA vei A ada i 6 USING THE GX8 AES CARD IN A GXD8 ooococoocccccccccoconanononccnnnnonannnnnnncnnnnnnnnnnnnnnnnnnn ana nnnnnn nan cn nan nrnnnnnnnnss 7 A che osu has ose sasha uses die sntnady S AEST 7 Paqrat bit split digital decoding 3 2a2 iie a eat 7 Pro Tools digital QUtpUlS ata sans Se ene dada fede nt ee 7 Bormat ConversiOny lt 2 cee ee dnl avast 7 MPO EEEE EE 020 Toa gd be estat vd EEEE EEEE EEEE EEEE ETE EE STETE EN 7 Duplicate AES EBU NPIS anini nia a iia 7 Eight channels of dual wire four channels Of QUAd WiF8 oooooocoocccccnnccinncoonccnnnncnonnnnnnncnnnnnnnnnnnnnnnnnncnnnnnes 7 Pro Tools digital IMPUS Ssmi a ia 8 SPECIFICATION a EE E AA EEE EEE AA EEEE EENE 9 Genex Research Limited Page i AES Expansion Card Rev 1 1 Important notes a Important notes Unpacking e After unpacking the AES Expansion Card save all the packing materials in case you ever need to ship the unit Thoroughly inspect the card for signs of damage Report any ship ment damage to the carrier at once The following accessories are included with the card 1 User Guide Installation e The Genex AES Expansion Card is installed into either of the two slots found on the back of the Genex GXA8 A D converter or the Genex GXD8 D A converter The card should only be inserted or re
9. rojects The GX8 AES card contains the Paqrat bit split decoder for digital digital conversion back to 24 bit The GX8 AES card is ideal for additional AES EBU i o when used in a Pro Tools setup Installing the GX8 AES Card 1 4 To install the AES card make sure the power is off You may keep the GXA8 or GXD8 plugged in to a switch off power outlet to maintain a ground connection Keep the GX8 AES card in its pack aging until you are ready to fit it Using a Phillips screwdriver remove the plate covering the vacant expansion slot at the back of the GXA8 or GXD8 Make sure you do not lose the screws Firstly touch the GXA8 or GXD8 to remove any static charge you may have built up then remove the GX8 AES from its packaging and slide gently into the empty slot in the back of the GXA8 or GXD8 Push it home firmly until the back plate is right against the back panel of the converter Note that the slot that is used will determine what audio channels are output GXA8 or input GXD8 when used in dual or quad wire see Operation on page 5 You should note which slot you do use to relate to the front panel SLOT1 and SLOT2 indicators Finally fix the card in place with the screws you removed in step 2 above Your card is now ready to use Genex Research Limited Page 3 AES Expansion Card Rev 1 1 Card Connections Card Connections Rear Panel 1 25 way D type connector This contains the 4 AES EBU i o pairs The pinou
10. select Digital for each channel pair This method allows a mix of analogue and digital inputs Note that the PPMs on the GXA8 will not show the digital input level in this case but will stay showing the analogue in put level for all channels Ensure that the digital source is locked to the rest of the Pro Tools system See the Genex Workstation Interface card user manual for more information Format Conversion By combining the GX8 AES card with another expansion card e g ADAT TDIF SDIF it is possible to convert between these formats Note that it is not possible at this time to convert digitally from single wire to dual wire dual wire to single wire or any other combination Genex Research Limited Page 5 AES Expansion Card Output Rev 1 1 Duplicate AES EBU outputs e With the GXA8 running in single wire mode the AES EBU outputs on the GX8 AES card will be a duplicate of the main AES EBU outputs on the GXA8 It does not matter into which slot the card is plugged There is also no sample offset between the two sets of outputs Eight channels of dual wire four channels of quad wire Operation e With the GX8 AES card plugged into Slot 2 the lower slot access is gained to channels five to eight when running the converter in dual wire This is the only way to output eight channels of 192kHz audio The following table shows what is output from what slot in what mode Sample Rate Wire Mode Main A
11. t is identical to all similar interfaces on other Genex equipment and is shown below 13 12 11 10 9 8 7 6 5 4 3 2 1 25 24 23 22 21 20 19 18 17 16 15 14 Pin number Description Pin Number Description 1 AES 1 input 14 AES 1 input 2 AES 1 input GND 15 AES 2 input 3 AES 2 input 16 AES 2 input GND 4 AES 3 input 14 AES 3 input 5 AES 3 input GND 15 AES 4 input 6 AES 4 input 16 AES 4 input GND 7 AES 1 output 14 AES 1 output 8 AES 1 output GND 15 AES 2 output 9 AES 2 output 16 AES 2 output GND 10 AES 3 output 14 AES 3 output 11 AES 3 output GND 15 AES 4 output 12 AES 4 output 16 AES 4 output GND 13 n c Diagram and Table of 25 way D type Pinout Genex Research Limited Page 4 AES Expansion Card Rev 1 1 Operation Operation Using the GX8 AES Card in a GXA8 Using the AES expansion card in the GXA8 provides additional digital i o for the converter This is useful for Input Paqrat bit split digital decoding By using the GX8 AES card in the GXA8 24 bit recordings made using Paqrat bit splitting technology e g with the GXA8 onto a legacy 16 bit recorder can be reconstituted back to 24 bits in the digital domain and output to a 24 bit digital editor or workstation 1 Having fitted the GX8 AES card into the GXA8 connect the AES outputs of the re corder to the AES expansion card via a Genex AES breakout cable Ensure the channels
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