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Studer D21m Product Information

I/o system components
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Studer D21m
I/O System Components
Product Information
(January 2009, 12
th
Edition)

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  • Page 1 Studer D21m I/O System Components Product Information (January 2009, 12 Edition)
  • Page 2 Copyright by Studer Professional Audio GmbH Studer Professional Audio GmbH Printed in Switzerland Technical Documentation Order no. BD10.275102-12 (0109) Althardstrasse 30 CH-8105 Regensdorf – Switzerland http://www.studer.ch Subject to change Studer is a registered trade mark of Studer Professional Audio GmbH, Regensdorf...
  • Page 3 Safety Information Safety Information To reduce the risk of electric shock, do not remove covers. No user- serviceable parts inside. Refer servicing to qualified service personnel (i.e., persons having appropriate technical training and experience neces- sary to be aware of hazards to which they are exposed in performing a repair action, and of measures to minimize the danger of themselves).
  • Page 4 Installation/Maintenance/ESD General Installation Instructions Please consider besides these general instructions also any product-specific instructions in the “Installation” chapter of this manual. Unpacking Check the equipment for any transport damage. If the unit is mechanically damaged, if liquids have been spilled or if objects have fallen into the unit, it must not be connected to the AC power outlet, or it must be immediately disconnected by unplugging the power cable.
  • Page 5 ESD/Repair Class I Equipment (Mains Operation) Should the equipment be delivered without a matching mains cable, the latter has to be prepared by a trained person using the attached female plug (IEC320/C13 or IEC320/C19) with respect to the applicable regulations in your country.
  • Page 6 Installation/Maintenance/ESD tor) and that also takes into consideration the EMC requirements. When deciding between radial, surface, or combined grounding, the advan- tages and disadvantages should be carefully evaluated in each case. • Use shielded cables where shielding is specified. The connection of the shield to the corresponding connector terminal or housing should have a large surface and be corrosion-proof.
  • Page 7 ESD/Repair material in which the replacement assembly was shipped. If this should not be the case, any claim for a possible refund will be null and void. • Unpacked ESD sensitive components should only be handled in ESD protected areas (EPA, e.g. area for field service, repair or service bench) and only be touched by persons who wear a wristlet that is connected to the ground potential of the repair or service bench by a series resistor.
  • Page 8 Repair/Disposal SMD Components Studer has no commercially available SMD components in stock for ser- vice purposes. For repair, the corresponding devices have to be purchased locally. The specifications of special components can be found in the ser- vice manual. SMD components should only be replaced by skilled specialists using ap- propriate tools.
  • Page 9 CE Declaration of Conformity Studer Professional Audio GmbH, CH-8105 Regensdorf, declare under our sole responsibility that the product Studer D21m, Digital I/O System (starting with serial no. 0001) to which this declaration relates, according to following regulations of EU directives and amendments •...
  • Page 10 Ambient Temperature Units and systems by Studer are generally designed for an ambient tem- perature range (i.e. temperature of the incoming air) of +5...+40 °C. When rack mounting the units, the intended air flow and herewith adequate cool- ing must be provided.
  • Page 11 Appendix evaporation (sublimation) may be expected; otherwise the system must be heated and dried while switched off. A system without visible internal formation of ice or condensation should be heated up with its own heat dissipation, as homogeneously (and subse- quently as slow) as possible;...
  • Page 12 Appendix Appendix 2: Mains Connector Strain Relief For anchoring connectors without a mechanical lock (e.g. IEC mains con- nectors), we recommend the following arrangement: Procedure: The cable clamp shipped with your unit is auto-adhesive. For mounting please follow the rules below: •...
  • Page 13 The following Terms and Conditions grant the right to use all programs of Studer that are part of the System and/or its options at the time of its deliv- ery to the Customer, as well as the installation software on the original data disk and the accompanying documentation (“License Material”).
  • Page 14 Reverse Engineering Reverse engineering is only permitted with the express consent of Studer. The consent of Studer can be obtained but is not limited to the case in which the interface-software can not be provided by Studer. In any case Studer has to be informed immediately upon complete or partial reverse engineering.

  • Page 15: Table Of Contents

    Analog Insert Cards ..............................5-2 96 kHz Operation ................................5-3 Input/Output Delays ..............................5-4 5.5.1 Additional SFC Delay............................5-5 5.5.2 Additional Processing Delay..........................5-5 The MADI Interface: 64 or 56 Channels?........................5-5 Standalone D21m I/O System.............................5-6 Connection to the Performa Core..........................5-8 Contents 0-1 Date printed: 30.08.07...
  • Page 16 D21m System D21m Modules .................................6-1 Available Cards ................................6-1 Analog I/O Cards ................................6-2 6.2.1 Mic/Line In Card .....................1.949.427......6-2 6.2.2 Analog Insert Card ....................1.949.428......6-4 6.2.3 Line In Card ......................1.949.421......6-6 6.2.4 Line Out Card ......................1.949.420......6-8 Digital I/O Cards ...............................6-10 6.3.1 AES/EBU I/O Cards ............1.949.422, 1.949.423, 1.949.424......6-10 6.3.2...

  • Page 17: General

    D21m System GENERAL Utilization for the Purpose Intended The D21m system is intended for professional use. It is presumed that the unit is operated only by trained personnel. Servicing is reserved to skilled technicians. The electrical connections may be connected only to the voltages and signals designated in this manual.

  • Page 18: Adjustments, Repair, Cleaning

    The primary fuse is located within the power supply module and cannot be changed. In case of failure, the complete power supply unit must be replaced. Please ask your nearest Studer representative. Cleaning: Do not use any liquids to clean the exterior of the unit. A soft, dry cloth or brush will usually do.

  • Page 19: Introduction

    When using the D21m I/O system the DSP core itself does not provide I/O, but is connected to the fi rst D21m frame within the system (acting as a hub) by using Studer proprietary “HD Link” technology. On the DSP core side, the connection is made to the DSP card(s) directly.
  • Page 20 This can be done only if the audio is routed with a DSP core. Since the MADI signal to the D21m remote I/O box is used to synchronize the unit, a stable, low-jitter MADI signal is necessary in order to reach maximum audio quality.

  • Page 21: The Frame And Its Cards

    D21m System The Frame and its Cards Front View: Rear View: I/O Example: I/O Example: 1 Dual-Slot Card 3 Dual Card Slots 4 Single-Slot Cards 1...2 HD Link Cards RS422 Serial Main and Redundant (Link to DSP Core) I/O Card Power Supply The 3 U frame provides 12 slots for I/O card insertion.

  • Page 22: Hub Frame

    D21m System Hub Frame The difference between a D21m frame acting as a hub or as a remote I/O box is the type of HD Link and RS422 cards inserted. The HD Link card in the hub frame hosts four RJ45 connectors for connection to the DSP core,...

  • Page 23: Applications

    I/O Frame Notes: Both the remote I/O box and the local hub frame are standard D21m frames, providing the possibility to insert any I/O cards available for the D21m I/O system. The hub frame may therefore also be used for any audio I/O located close to the DSP core.

  • Page 24: Multiple I/O Boxes, Long Distance

    I/O Frame Notes: Both the remote I/O box and the local hub frames are standard D21m frames, providing the possibility to insert any I/O card available for the D21m I/O system. The hub frame may therefore also be used for any audio I/O located close to the DSP core.

  • Page 25: Multiple Hubs, Multiple I/O Boxes, Long Distance

    ... Remote I/O Box 11 Notes: Both the remote I/O box and the local hub frames are standard D21m frames, providing the possibility to insert any I/O card available for the D21m I/O system. The hub frame may therefore also be used for any audio I/O located close to the DSP core.

  • Page 26: Shared I/O

    D21m System card in case of operation with the Performa core) in order to provide I/O for monitoring and talkback of the desk. The RS422 link for the second hub may be taken from the Vista desk by using a further RS422 port.

  • Page 27: System Examples

    Some of the I/O cards are “double-width”, of which a maximum of 6 may be fi tted in one D21m frame. When only using single-width cards, a maximum of 12 can be fi tted. Therefore, e.g. a maximum of 48 microphone inputs may be fi...

  • Page 28: System With Remote Midi Connection

    D21m System System with Remote MIDI Connection I/O Frames with Different Types of I/O Cards Remote I/O Box 1 ..Remote I/O Box 5 ..Remote I/O Boxes MIDI Signal into 0...64 Ch Optical MADI, incl. MIDI "AUX"...

  • Page 29: Additional Information

    The HD card is redirecting the audio channels from the different I/O cards into the Studer proprietary HD link format (in case of a hub) or MADI (in case of a remote I/O box). In order to design a complete I/O system, it is mandatory to know which channels of the I/O cards end up being redirected to which one of e.g.

  • Page 30: Special Case: Microphone/Line Input Card

    D21m System Special Case: Microphone/Line Input Card The smallest modularity of channels used up within the MADI and Core link is eight. If an odd number of Mic/Line input cards is used, they should be inserted in pairs, with the last card in an odd slot (no. 1, 3, 5...) This single card will allocate 8 channels but only 4 of them will have audio.

  • Page 31: 96 Khz Operation

    D21m System 96 kHz Operation D21m Frame: The D21m I/O system is fully supporting 96 kHz operation. For digital for- mats, the following standards are supported: AES/EBU 2 channels are sent over one cable, both at 48 kHz and 96 kHz, just by dou- bling the clock frequency of the transmitted signal in 96 kHz operation.

  • Page 32: Input/Output Delays

    D21m System Input/Output Delays Different DSP core types as well as the different I/O cards cause different delays. Several facts require additional consideration. Total I/O delay is the sum of the delays given in the tables below and depends on confi guration.

  • Page 33: 5.5.1 Additional Sfc Delay

    MADI devices). Protocol selection is done on the front panel switch of the MADI I/O card. Between a D21m hub and a D21m remote I/O box always 64-channel format should be selected, since the MADI HD card in the remote I/O box expects the 64 channel protocol.

  • Page 34: Standalone D21M I/O System

    A D21m I/O frame can be connected to any 3rd-party device using its optical MADI interface. The remote control software runs on a PC, connected to the I/O frame over an additional RS422 serial connection.
  • Page 35 D21m System The frame acts as a clock slave and synchronizes to the optical MADI signal. It therefore automatically detects the clock rate of the connected audio device. Supported clock rates are 44.1, 48, 88.2, and 96 kHz. In 44.1 and 48 kHz mode the two MADI interfaces work in parallel. One of them may be used as a digital split output or for redundancy.

  • Page 36: Connection To The Performa Core

    D21m System Connection to the Performa Core The Performa core is connected to the D21m I/O System in a similar way as the SCore. The main difference is that the HD link connection from the core towards the D21m I/O frame only carries up to 48 channels (at both 48 and 96 kHz).

  • Page 37: D21M Modules

    64-channel format. Therefore this switch may have to be set to “56 channel” protocol in order to operate correctly with third-party MADI devices. In this case the number of channels set internally should not exceed 56. D21m Modules 6-1 Date printed:...

  • Page 38: Analog I/O Cards

    0 dB* Split out 4 –20 dB* 48 V Phantom Pwr Sensitivity Control High-Pass Filter Insert Control Control Logic * 0 dB for input sensitivity –60...+3 dBu, –20 dB for input sensitivity +4...+26 dBu 6-2 D21m Modules Date printed: 25.09.07...
  • Page 39 GND is used as negative reference for a microphone, it can occur that the GND net of the D21m is pulled towards –48 V. This causes the HD link receivers not to work correctly or to be damaged, depending on the type and number of microphones connected.
  • Page 40 6.2.2 Analog Insert Card 1.949.428 This card is intended for use with a D21m Mic/Line In card and features four electronically balanced analog inserts. The insert sends are always active, return on/off is controlled by the console software (default off). Insert sends and returns on standard 25-pin D-type connector (female).
  • Page 41 CH 3 in + CH 3 in – CH 3 in GND CH 2 in + CH 2 in – CH 2 in GND CH 1 in + CH 1 in – CH 1 in GND n.c. D21m Modules 6-5 Date printed: 25.09.07...
  • Page 42 Line In 1 Trim 15 dBu ^ = Full Scale Line In 2 Att. –9 dB –2...+8 dB Line In 3 Line In 4 Line In 5 Line In 6 Line In 7 Line In 8 6-6 D21m Modules Date printed: 04.12.08...
  • Page 43 CH 3 in + CH 3 in – CH 3 in GND CH 2 in + CH 2 in – CH 2 in GND CH 1 in + CH 1 in – CH 1 in GND n.c. D21m Modules 6-7 Date printed: 25.09.07...
  • Page 44 15 dBu ^ = Full Scale – Line Out 2 – +9 dB –8...+2 dB Line Out 3 – Line Out 4 – Line Out 5 – Line Out 6 – Line Out 7 – Line Out 8 – 6-8 D21m Modules Date printed: 25.09.07...
  • Page 45 CH 3 out + CH 3 out – CH 3 out GND CH 2 out + CH 2 out – CH 2 out GND CH 1 out + CH 1 out – CH 1 out GND n.c. D21m Modules 6-9 Date printed: 25.09.07...

  • Page 46: Digital I/O Cards

    AES Rx SFC ** AES In 7 SFC ** AES Rx AES In 8 AES Rx SFC ** AES Sync In * AES Rx * * for 1.949.424.xx only ** for 1.949.423.xx and 1.949.424.xx only 6-10 D21m Modules Date printed: 25.09.07...
  • Page 47 Output SFC / WL Reduction (1.949.424 only) Enabling/bypassing of the output SFCs, separate for the AES/EBU output channel groups 1...4 and 5...8. Please note that for word length reduction the output SFCs must be set to Enabled. D21m Modules 6-11 Date printed: 04.12.08...
  • Page 48 CH 11/12 in screen 24 CH 1/2 in + CH 9/10 in + 12 CH 1/2 in – CH 9/10 in – 25 CH 1/2 in screen CH 9/10 in screen 13 n.c. n.c. 6-12 D21m Modules Date printed: 25.09.07...
  • Page 49 0...64 Ch Dual MADI Decoder Lock LED UART to Merger Card MADI In 2 MADI Out 1 0...64 Ch Dual MADI Encoder UART from Merger Card MADI Out 2 RS422 RS422 User UART Port RX/TX D21m Modules 6-13 Date printed: 25.09.07...
  • Page 50 (refer to the block diagram on the opposite page) Setting OFF OFF OFF OFF ON ON Card is Master (factory default) ON OFF OFF OFF OFF Card is Slave NO OTHER SETTINGS ALLOWED ! 6-14 D21m Modules Date printed: 25.09.07...
  • Page 51 57’600 bps 38’400 bps (9-pin) 31’250 bps (MIDI) 19’200 bps 9’600 bps 6...9 Reserved for future use DIP switch for D21m channel count setting: Number of Channels 0 inputs ON OFF 8 inputs ON OFF ON 16 inputs ON OFF OFF...
  • Page 52 9’600 bps (1.949.433) Reserved for future use **S1 Setting (refer to above) BNC output carries D21m system word clock (factory default) BNC output carries received word clock DIP switch for RS422 pinout selection: Setting OFF OFF OFF OFF ON ON RS422 Controller pinout...
  • Page 53 * use with 980/1000 µm AP fi bre possible for distances up to 5 m. Lock LED ADAT In 1 8/16 Ch Dual ADAT Decoder Lock LED ADAT In 2 8/16-Ch Mode ADAT Out 1 8/16 Ch Dual ADAT Encoder ADAT Out 2 D21m Modules 6-17 Date printed: 16.05.08...
  • Page 54 16 in, 16 out 96 kHz: Ch 1...4 96 kHz: Ch 5...8 (factory default) 48 kHz: Ch 1...8 48 kHz: unused 8-Ch Mode 8 in, 8 out 96 kHz: Ch 1...4 96 kHz: Ch 5...8 6-18 D21m Modules Date printed: 25.09.07...
  • Page 55 16 in, 16 out 96 kHz: Ch 1...4 96 kHz: Ch 5...8 (factory default) 48 kHz: Ch 1...8 48 kHz: unused 8-Ch Mode 8 in, 8 out 96 kHz: Ch 1...4 96 kHz: Ch 5...8 D21m Modules 6-19 Date printed: 25.09.07...
  • Page 56 10 CH 4 in CH 8 in 23 GND 11 CH 3 in CH 7 in 24 GND 12 CH 2 in CH 6 in 25 GND 13 CH 1 in CH 5 in 6-20 D21m Modules Date printed: 25.09.07...
  • Page 57 The HD/SD SDI (serial digital interface) 16-channel de-embedder card is able to de-embed eight or 16 audio channels from SDI-SD as well as from SDI- HD video streams. For the D21m I/O system it acts as an eight-or 16-channel audio input card. These two modes are determined by hardware switches located on the card.
  • Page 58 OFF: Group 1/2 used in 8-channel mode (factory default) ON: Group 3/4 used in 8-channel mode OFF: SFC disabled (factory default) ON: SFC enabled reserved (must always be OFF; factory default) Switch Setting reserved (default: OFF) A...F 6-22 D21m Modules Date printed: 20.12.07...
  • Page 59 SD as well as the HD standard. It can act as an eight-channel embedder, an eight-channel de-embedder, or as a combination of the two. Therefore, for the D21m I/O system it may act as an eight-channel audio input card, an eight-channel audio output card, or an eight-channel input and output card.
  • Page 60 ON: generate channel status bit (factory default) OFF: NTSC 525 test pattern is generated if no SDI input signal is present (factory default) ON: NTSC 1080i60 test pattern if no SDI input signal is present 6-24 D21m Modules Date printed: 25.09.07...
  • Page 61 ® applied). For more details on Dolby E please refer to www.dolby.com. ® The Studer Decoder The D21m Dolby E/Digital card hosts one (1.949.443) or two (1.949.444) ® Dolby E decoder modules. Each one is functionally very similar to one ®...
  • Page 62 E signal can be fed into this input, too, and it will be decoded ® correctly. However, if a Dolby E signal is detected on the main input, this will be taken with higher priority. 6-26 D21m Modules Date printed: 25.09.07...
  • Page 63 S1.1 ... S1.3 S1.1 S1.2 S1.3 Module 2* Input Select Automatic source selection (factory default: All OFF) Front port main Front port PCM delay Rear (backplane) main Rear (backplane) PCM delay * if installed D21m Modules 6-27 Date printed: 25.09.07...
  • Page 64 E stream contains metadata with various information on the encoded signal. This information can be read ® out from the front panel connector. The D21m Dolby E decoder card only uses this information in case a 2-channel stereo downmix is required from ®...
  • Page 65 E signal and pos- sibly getting white noise instead of the decoded signal, the whole signal path should be checked. It may be worthwhile verifying the following points: • Are there any sampling frequency converters (e.g. when using the D21m ® Dolby E decoder card together with the D21m SDI card) in the signal ®...
  • Page 66 Current consumption (5 V) 800 mA Operating temperature 0...40° C Primary CobraNet Audio In Audio In Port Glue CM-1 Audio Out + Sync Audio Out + Sync Module Logic Secondary CobraNet Port Control Switch Logic 6-30 D21m Modules Date printed: 25.09.07...
  • Page 67 D21m System DIP Switch: DIP switch for D21m channel count setting: Number of Channels OFF OFF OFF OFF 0 inputs (factory default) OFF OFF OFF ON 8 inputs OFF OFF ON OFF 16 inputs OFF OFF ON 24 inputs OFF ON OFF OFF...
  • Page 68 With this standard, 16 mono signals can be fed to an infi nite number of Aviom personal mixers (such as the A-16 II) may be connected in a daisy chain confi guration. The D21m A-Net card will be the start of the chain and ®...
  • Page 69 ON: Channels 13 and 14 are a stereo group OFF: Channels 15 and 16 are mono (factory default) ON: Channels 15 and 16 are a stereo group OFF: Test tone generator off (factory default) ON: Test tone generator on D21m Modules 6-33 Date printed: 25.09.07...

  • Page 70: Ethersound ® Card

    LEDs. The audio clock of the EtherSound ® network must be synchronous with the D21m I/O system’s audio clock. This is ensured either by using the Ether- Sound card as clock source of the EtherSound network, or by feeding the ®...
  • Page 71 Dark: The card is not the EtherSound clock source. ® DIP Switch: DIP switch for D21m channel count setting: Number of Channels OFF OFF OFF OFF 0 inputs OFF OFF OFF ON...

  • Page 72: Non-Audio I/O Cards

    ) and 16 open-collector outputs. supply pins are available. Inputs and outputs on standard 25-pin D-type connectors (female). Current consumption (5 V) max. 0.65 A Operating temperature 0...40° C 16 × Opto In 16 × Open Coll. Out 6-36 D21m Modules Date printed: 25.09.07...
  • Page 73 Output current must not exceed 50 mA per output. Please make sure to use appropriate series resistors if necessary. Total current supplied by all +5 V pins of one card must not exceed 650 mA. D21m Modules 6-37 Date printed: 25.09.07...
  • Page 74 0.8 A max. (earlier version: 1.1 A max.) Operating temperature 0...40° C Output contact rating 0.5 A/125 V ; 0.7 A/30 V ; 0.3 A/100 V 16 × Opto In 16 × Relay Out 6-38 D21m Modules Date printed: 25.09.07...
  • Page 75 (GND) terminals, together with the relay contacts, may be used to generate an output signal. Total current supplied by all +5 V pins of one card must not exceed 600 mA. D21m Modules 6-39 Date printed: 25.09.07...

  • Page 76: Hd Cards

    6.5.1 HD Card S 1.949.412 The D21m HD card S provides the link to the DSP core systems. Each input and output can handle up to 96 channels in each supported sampling fre- quency (in combination with the Performa core, the number of I/O channels is restricted to 48).
  • Page 77 When using the Performa core, only 48 channels can be transmitted from the core to the D21m system. In order not to lose audio data, the channel selector of the HD card S has to be confi gured to this mode by setting switch #1 of DIP switch S1 to the ON position.
  • Page 78 6.5.2 HD RS422 Card 1.949.415 The D21m HD RS422 card provides the link to the DSP core systems. Each input and output can handle up to 96 channels in each supported sampling frequency (in combination with the Performa core, the number of I/O chan- nels is restricted to 48).
  • Page 79 RS422 (9-pin D-type, female) Pin RS422 Controller RS422 Device Chassis Chassis RxD – TxD – TxD + RxD + Solder/Crimp View (or Socket View) n.c. n.c. RxD + TxD + TxD – RxD – Chassis Chassis D21m Modules 6-43 Date printed: 25.09.07...
  • Page 80 HD card with RJ45 connectors (1.949.414) was introduced (right picture). The D21m MADI HD card is plugged into an HD card slot in the remote I/O box and provides the link to the hub frame. The two interfaces offer up to 64 audio channels with 44.1/48/88.2/96 kHz operation, together with embedded...
  • Page 81 On if a valid MADI signal is present at the input. Switches: DIP switch for pinout selection of the front-panel RS422 connector: ON OFF OFF OFF OFF Device pinout OFF OFF OFF OFF ON ON Controller pinout (factory default) NO OTHER SETTINGS ALLOWED! D21m Modules 6-45 Date printed: 25.09.07...
  • Page 82 Connector Pin Assignments: Pin RS422 Controller RS422 Device Chassis Chassis RxD – TxD – TxD + RxD + Solder/Crimp View (or Socket View) n.c. n.c. RxD + TxD + TxD – RxD – Chassis Chassis 6-46 D21m Modules Date printed: 04.12.08...
  • Page 83 MADI MAIN / MADI AUX (8-pin RJ45) (on twisted-pair cable version 1.949.414 only) Pin Signal MADI RxD + MADI RxD – MADI TxD + WCLK TxD/RxD + Socket View WCLK TxD/RxD – MADI TxD – reserved reserved D21m Modules 6-47 Date printed: 25.09.07...

  • Page 84: Serial/Merger Cards

    The pinout of the RS422 connector can be set to “device” or “controller” with a DIP switch, depending on the 3 -party serial device connected. Max. RS422 cable length 1000 m Current consumption (5 V) 20 mA Operating temperature 0...40° C RS422 Pinout RS422-to-TTL Port Selector Converter 6-48 D21m Modules Date printed: 25.09.07...
  • Page 85 (9-pin D-type, female) Pin RS422 Controller RS422 Device Chassis Chassis RxD – TxD – TxD + RxD + Solder/Crimp View (or Socket View) n.c. n.c. RxD + TxD + TxD – RxD – Chassis Chassis D21m Modules 6-49 Date printed: 25.09.07...
  • Page 86 6.6.2 Serial Merger Card 1.949.438 This card is used to feed any Studer-internal control signals into the hub I/O frame. A serial connection is made between the Studer product (such as a Vista or OnAir 3000 console) and the MASTER connector of the card.
  • Page 87 Setting Depending on application (factory default): – SCore: Master port connected to bridge/host card – D21m stand-alone mode: Master port connected to front-panel MASTER socket Master port forced to front-panel MASTER socket (Vista 5 only) OFF OFF OFF reserved - NO OTHER SETTINGS ALLOWED!
  • Page 88 Max. UTP (CAT5) cable length 25 m Current consumption (5 V) 20 mA (5 V, 24 V supply loaded) Operating temperature 0...40° C 24 V On Supply 24 V/20 W Serial Pinout RS422-to-TTL Port Selector Converter (RJ45) 6-52 D21m Modules Date printed: 25.09.07...
  • Page 89 * n.c. TxD + RxD + Socket View RxD + TxD + RxD – TxD – TxD – RxD – * or +24 V if SW 6 of DIP switch 1 is set to ON D21m Modules 6-53 Date printed: 25.09.07...
  • Page 90 6.6.4 Dual Merger Card 1.949.440 This card is used to feed any Studer-internal control signals into the hub I/O frame. A serial connection is made between the Studer product (such as Vista or OnAir 3000 consoles) and the HOST connector of the card. In certain SCore applications the host port is connected internally through the back- plane.
  • Page 91 * or +24 V if SW 6 of DIP switch 1 is set to ON Note: The three lower connectors 16-23, 24-31, and 32-39 are always wired in “controller” mode and cannot be switched to “device” mode. D21m Modules 6-55 Date printed: 25.09.07...
  • Page 92 6.7.1 Primary Power Supply 1.949.404 (earlier version: 1.949.403) The D21m I/O frame may be equipped with either one or, for redundancy purposes, with two primary power supply units. The module used is a primary switching AC/DC converter with an input voltage range of 90...264 V...
  • Page 93 The LED part of the PCB (not shown here) is located behind the frame’s front panel and connected with a ribbon cable to P1 of the PSII PCB; it indicates available/missing cards and supply voltages as well as the boot sequence and errors while booting. D21m Modules 6-57 Date printed: 30.08.07...
  • Page 94 6.7.3 Air Defl ector/Filter Unit 1.949.599 If a D21m I/O frame has a power dissipation of less than 80 W, air defl ector/ fi lter units should be used on top of and below the frame. For frames dissipat- ing more power, an air defl ector/fi lter unit should be used on top of the frame, combined with a fan unit (see below) at its bottom.

  • Page 95: Break-Out Boxes

    25-pin D-type sockets (f) are provided for connection to the AES/EBU cards. For matching cables please refer to chapter 6.7.6. Maximum cable lengths are 10 m for the D-type cables, and 100 m for the BNC cables. D21m Modules 6-59 Date printed: 30.08.07...

  • Page 96: Cables

    (opper row, uncoded) (lower row, uncoded) n.c. +5 V +5 V Socket View n.c. Power Relay, Contact 1 GPO Relay, Contact 1 Optocoupler Input 1 Power Relay, Contact 2 GPO Relay, Contact 2 Optocoupler Input 2 6-60 D21m Modules Date printed: 30.08.07...
  • Page 97 Neutrik OpticalCon Heavy-Duty Cables Assembled cable on drum 89.10.0151 Assembled cable on drum 89.10.0152 Assembled cable on drum 89.10.0153 Assembled cable on drum 89.10.0154 Bulkhead adapter, OpticalCon to LC 89.10.0150 Patch cable, LC to SC 89.10.0159 D21m Modules 6-61 Date printed: 30.08.07...

  • Page 98: Discontinued Components

    6.5.1) and is not available for new systems. The D21m HD card provides the link to the DSP core systems. Each input and output can handle up to 96 channels in each supported sampling frequency (in combination with the Performa core, the number of I/O channels is restricted to 48).

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