Midas DL431 Operator's Manual
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Midas DL431 Operator's Manual

Midas DL431 Operator's Manual

Xl8 live performance system mic splitter
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DL431 Mic Splitter
Operator Manual
Midas,
Klark Teknik Building,
Walter Nash Road,
Kidderminster.
Worcestershire.
DY11 7HJ.
England.
Tel: +44 1562 741515
Fax: +44 1562 745371
Email: info@uk.telex.com
Website: www.midasconsoles.com
DL431 Mic Splitter - Operator Manual
DOC02-DL431 Issue 1 - April 2007
© Telex Communications (UK) Limited
In line with the company's policy of continual improvement, specifications and function may be
subject to change without notice. This Operator Manual was correct at the time of writing. E&OE.

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Summary of Contents for Midas DL431

  • Page 1 Tel: +44 1562 741515 Fax: +44 1562 745371 Email: info@uk.telex.com Website: www.midasconsoles.com DL431 Mic Splitter - Operator Manual DOC02-DL431 Issue 1 - April 2007 © Telex Communications (UK) Limited In line with the company’s policy of continual improvement, specifications and function may be...
  • Page 3 IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated “Dangerous Voltage” within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle, is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
  • Page 5 Worcestershire, DY11 7HJ, declare that a sample of the following product: Product Type Number Product Description Nominal Voltage(s) Current Freq. DL431 Mic Splitter 115V AC 50/60Hz 230V AC 0.6A to which this declaration refers, is in conformity with the following directives and/or standards:...
  • Page 7 Midas™ or Klark Teknik™ product, as well as other software that we provide for installation on the product. The Midas™ or Klark Teknik™ product will not operate in accordance with its documentation without this software.
  • Page 8 Linux EULA. If you wish to receive a computer-readable copy of the source code for the Linux programs that have been provided with your Midas™ or Klark Teknik™ product, send a check or money order (no cash accepted), your address, and $10.00 to cover the cost of optical media, postage and handling, to:...
  • Page 9 • Any part that is damaged should be properly repaired or replaced. This must be done by a fully trained and authorised service engineer. • Observe all warnings, cautions etc. on any part of the equipment. • Do not remove, hide or deface any warnings or cautions. DL431 Mic Splitter Operator Manual...
  • Page 10 • Before connecting up the equipment, check that the mains power supply voltage rating corresponds with the local mains power supply. The rating of the mains power supply voltage is printed on the equipment. • Mount in rack only. DL431 Mic Splitter Operator Manual...
  • Page 11 Degradation of up to 60dB at a frequency corresponding to the modulation signal may be experienced under extreme conditions (3V/m, 90% modulation). Operation To avoid electrical shock, never operate the equipment with the covers removed. DL431 Mic Splitter Operator Manual...
  • Page 12 To comply with part 15 of the FCC Rules, any special accessories (that is, items that cannot be readily obtained from multiple retail outlets) supplied with this equipment must be used with this equipment; do not use any alternatives as they may not fulfil the RF requirement. DL431 Mic Splitter Operator Manual...

  • Page 13: Table Of Contents

    Rear panel connections ........34 DL431 Mic Splitter...
  • Page 14 General specifications ........59 DL431 Mic Splitter...
  • Page 15 Digital (system) outputs ....... 60 DL431 Mic Splitter Operator Manual...
  • Page 16 DL431 Mic Splitter Operator Manual...

  • Page 17: Introduction

    Chapter 1: Introduction The DL431 Mic Splitter is a six-unit (6U) 19” rack unit that provides 24 mic/line inputs. Each input feeds three separate preamps, two of which have separate remote and local gain controls, while the third has fixed gain. The two preamps with gain controls feed separate analogue to digital (A/D) converters, which pass digital audio to the network.

  • Page 18: About This Manual

    About this manual Purpose This is the operation manual for the DL431 Mic Splitter. It is intended to help get your DL431 Mic Splitter installed and in operation as quickly as possible by giving you unpacking, installation, connection, setting up and operating instructions. To help familiarise you with the DL431 Mic Splitter there is a description of the front and rear panels, along with easy-to-follow user instructions.

  • Page 19: Package Contents/Unpacking

    Packing list The following is a list of the main items contained in the DL431 Mic Splitter package: • 1-off DL431 Mic Splitter. • 1-off DL431 Mic Splitter operator manual (this document), part number DOC02-DL431.
  • Page 20 Chapter 1: Introduction DL431 Mic Splitter Operator Manual...

  • Page 21: Xl8 Live Performance System Overview

    Concert sound The standard XL8 system, which provides the full 96 inputs and 51 outputs, comprises: • 1-off XL8-5BCC (flight-cased, five-bay control centre). • 4-off XL8 stage box (DL431). • 5-off XL8 I/O box (DL451). • 10-off XL8 DSP units (DL471).
  • Page 22 Warranty Three years. Audio quality • Three mic pre amps per input FOH, monitor and broadcast. • Midas EQ (sound quality and ‘feel’). • Four filters. • Midas dynamics. • Four styles (five on outputs). • Midas quality input and output.

  • Page 23: System Hardware

    The standard five-bay control centre has three bay types, input (3-off), mix (1-off) and output (1-off). • DL431 Mic Splitter (4-off): 6U 19” rack unit that provides 24 mic/line inputs. • DL451 Modular I/O (5-off): 3U 19” rack unit that provides a maximum of 24 audio inputs and 24 audio outputs.

  • Page 24: Network

    - between control centre and router - is either Cat6 or fibre optic. The combination of audio, control, clock and third party Ethernet data in a single network means that the hardware interfaces on a single RJ45 connection. All system connections are duplicated for full dual redundancy. DL431 Mic Splitter Operator Manual...

  • Page 25: System Interconnections

    System interconnections System interconnections Figure 1 shows basic system interconnectivity and indicates where the four DL431 Mic Splitter units (highlighted in red) sit within the system. This figure also illustrates redundancy by showing that the two halves of the system - left and right - are identical (ignoring the DN9331 RAPIDE).

  • Page 26: Connecting Up The Xl8

    Chapter 2: XL8 Live Performance System Overview Connecting up the XL8 This diagram shows the network interconnections for a typical FOH XL8 system. FOH DL431 Mic Splitter - rear RapidE Note: All connections are dual redundant, so the system can operate quite normally using either the X or Y cables.
  • Page 27 Link DSP backbone (cables linking connectors 1-1 and 6-6 are non-standard lengths) DSP unit Mic splitter Router (X and Y) I/O box Main cable Duplicate cable Note: Cable descriptions can be found in “Cable type and function” on page 12. DL431 Mic Splitter Operator Manual...

  • Page 28: Cable Type And Function

    Carries standard 100bs Fast Ethernet data. Router Cat5 AES50 audio - bank 0 > Y. Ethercon XLR Ethercon XLR Carries a bi-directional combination of 24 channels of 96KHz audio plus 5Mbs of control Router Mic splitter data. DL431 Mic Splitter Operator Manual...

  • Page 29: System Interconnection Checklist

    • In the Ethernet control bank on the X router, connect the 10 sockets to the Ethernet control X socket on DSP units. Repeat for Y router, using the equivalent Y sockets on the DSPs. • DSP/DSP: Connect all of the DSP units together. DL431 Mic Splitter Operator Manual...

  • Page 30: Foh And Mon

    Stage 24-channel bi-directional MidasNET Main Duplicate Multiple MidasNET links Main Local I/O units Duplicate 192-channel bi-directional MidasNET trunk link Main Duplicate XL8 Control Centre Figure 2: Typical XL8 Live Performance System FOH and MON set-up DL431 Mic Splitter Operator Manual...

  • Page 31: Audio Physical Connections

    The standard XL8 Live Performance System has a total configurable audio channel count (on the DL451 I/O units) of between 120 and 240, depending on the mix of analogue and digital I/O (excluding the non-configurable 96 mic inputs on the DL431 mic splitter).
  • Page 32 DL451 I/O units, but does not show the redundant duplicated network. All connectivity is controlled via the GUI. 1. These spare AES50 ports can also be used to directly connect any AES50 equipped units, such as a hard disk recorder. DL431 Mic Splitter Operator Manual...

  • Page 33: Mix Matrix

    • Bass EQ filter with choice of four filter types. • Routing via level controls to 48 aux mix buses. • Routing via pan control to left and right master buses. • Routing to mono master bus. • Panpot (SIS™). • Direct output. DL431 Mic Splitter Operator Manual...

  • Page 34: Mix Channel Processing

    Each of the three master output buses has: • Six-band PEQ. • Optional 31-band GEQ (replaces PEQ). • Five-mode frequency-conscious compressor with soft clip limiter and external side chain. • Insert point. • Direct input. DL431 Mic Splitter Operator Manual...

  • Page 35: Output Channel Processing

    This unit provides rapid adjustments of the graphics with real hardware, and not a mouse and screen. The graphic channel is selected either by the control centre’s SOLO button (solo tracking system (STS)) or by buttons on the RAPIDE itself. DL431 Mic Splitter Operator Manual...

  • Page 36: Control Software

    The XL8’s operating system is Linux, which is an open-source, stable, proven operating system (OS). Linux is used in many mission-critical applications worldwide and has allowed Midas’ software engineers to write a ground-up system that contains no ‘hidden’ or unused code. This has resulted in an efficient, compact application, which is quick in operation, quick booting and comparatively easy to debug.
  • Page 37 Resilience to failure (redundancy) Local I/O units Internal bay processor Dual redundant DL431 Mic Splitter internal master controller Dual redundant internal router Control data Cat6/optical ‘snake’ Audio data N + 1 redundant Control and spare audio data Router Monitor This diagram gives a...
  • Page 38 Chapter 2: XL8 Live Performance System Overview Local I/O units DL431 Mic Splitter Internal bay processor Green interconnections indicate that communications are Internal master healthy controller Internal router units I/O units Router This diagram illustrates an extreme Monitor example of dual...
  • Page 39 Resilience to failure (redundancy) Local I/O units Internal bay DL431 Mic Splitter processor Internal master controller Internal router Red interconnections Green interconnections indicate that indicate no communication due communications are healthy to router fault units I/O units Router Router (healthy)

  • Page 40: Integration Of Third Party Software

    Midas network, and will transfer audio to and from the Midas hardware without any additional interfaces or converters (provided it runs in TDM 96kHz mode). This will be particularly useful as the protocol gains acceptance with recording and playback devices, loudspeaker controllers, audio networking systems, digital amplifiers etc.

  • Page 41: System Documentation

    Modular I/O. wire-O bound DL461 Router Operator Full user instructions for the Hard copy, DOC02-DL461 Manual Router wire-O bound DL431 Mic Splitter Full user instructions for the Mic Hard copy, DOC02-DL431 Operator Manual Splitter. wire-O bound DL431 Mic Splitter Operator Manual...
  • Page 42 Chapter 2: XL8 Live Performance System Overview DL431 Mic Splitter Operator Manual...

  • Page 43: Front Panel

    Ethernet control panel; see page 29. subsections, with each one containing an LED mic amp select panel; see page 28. meter, a SELECT button and 48V and 30Hz filter LEDs for on/off status indication. See page 31. DL431 Mic Splitter Operator Manual...

  • Page 44: Control Panel

    Chapter 3: Front Panel Control panel The control panel is used for setting up the DL431 Mic Splitter and adjusting the input gain on a channel. An LCD panel and four navigation buttons (to the left) are used to access the main menu and set up the unit. A control knob provides gain adjustment for the selected channel.

  • Page 45: Ethernet Control Panel

    1 and psu 2 panels These panels monitor the DL431 Mic Splitter’s internal supply voltages for each network. The yellow LEDs illuminate to show that their respective voltage rails are active.

  • Page 46: Channel Monitor Panel

    0dBu. (Unlike the headphones in the range 4 (infinity) to +10dB. headphone jack this output does not have an independent level control.) DL431 Mic Splitter Operator Manual...

  • Page 47: Analogue Output Metering Section

    6dB. for that channel. isolated C outputs section This section contains 24 isolated output sockets for connection of female XLR connectors, typically used for broadcast feeds. DL431 Mic Splitter Operator Manual...
  • Page 48 Chapter 3: Front Panel DL431 Mic Splitter Operator Manual...

  • Page 49: Rear Panel

    • Two USB connectors (host and slave). • Three pairs of Ethercon XLR connectors: • One pair of connectors for ‘tunnelling Ethernet’. • Two pairs of connectors (AES50 A and B) for audio and control data to/from router. DL431 Mic Splitter Operator Manual...

  • Page 50: Rear Panel Connections

    4) for connection of XLR female connectors. mains, one is a dual redundant spare that can Each row is numbered right to left in ascending automatically switch in if the other fails. order. Rows are in ascending order from top down. DL431 Mic Splitter Operator Manual...

  • Page 51: Led Indicators

    Pulsating green with red extinguished = valid audio and valid aux data; active link. Green illuminated with red extinguished = valid audio and valid aux data; standby link. Green extinguished with red illuminated = no audio; link has failed. DL431 Mic Splitter Operator Manual...
  • Page 52 Chapter 4: Rear Panel DL431 Mic Splitter Operator Manual...

  • Page 53: Getting Started

    Switching on and off Switching on After you have connected up your DL431 Mic Splitter it is ready to be switched on. To do this, switch on both mains on/off switches on the rear of the unit, one after the other.

  • Page 54: Switching Off

    Setting up Initial setting up of the DL431 Mic Splitter involves allocating an ID for it within the XL8 network system environment, see “To set up the unit’s ID” on page 43.

  • Page 55: Main Menu

    Chapter 6: Main Menu This chapter describes the menu options that allow you to set up your DL431 Mic Splitter. Main menu options The main menu has the following five options: • Option 1 “MicSplit ID”: for setting up the DL431 Mic Splitter’s network unit ID.

  • Page 56: Main Menu Flowchart

    2 seconds Option 3 AES50 B Status 5 selected in this example Press and To clear hold for 2 seconds Select from AES50 Status 1 to 6 for A and B Option 5 DL431 Mic Splitter Operator Manual...
  • Page 57 In the “Select Menu” screen, a flashing option number indicates that the option is ready for selection by pressing SELECT. DL431 Mic Splitter Operator Manual...

  • Page 58: To Enter The Main Menu And Select An Option

    MENU button as many times as necessary until you are back at the default screen. The DL431 Mic Splitter will exit the main menu automatically after about 20 seconds of inactivity, that is, if none of the navigation buttons are pressed within that time.

  • Page 59: Option 1 Micsplit Id

    Option 1 MicSplit ID Option 1 MicSplit ID This option allows you set up the ID of the DL431 Mic Splitter, which distinguishes it from the other DL431 Mic Splitters in the XL8 Live Performance System network. There are four ID numbers available - 1, 2, 3 and 4 - with each being allocated 24 channels, numbered as follows: •...

  • Page 60: Option 2 Aes50 Sync

    Chapter 6: Main Menu Option 2 AES50 Sync This option allows you set up the clock source for AES50 synchronisation of the DL431 Mic Splitter. To set up the unit’s AES50 synchronisation Enter the main menu, select option 2 and then continue to set the unit’s AES50 synchronisation from the three options available: •...

  • Page 61: Option 3 Local Mode

    Option 3 Local Mode Option 3 Local Mode This option allows you set up the DL431 Mic Splitter for local or console operation. To set up the unit for local or console operation Enter the main menu, select option 3 and then continue to set the unit’s operating mode from the two options available: •...

  • Page 62: Option 4 Aes50 Status

    Chapter 6: Main Menu Option 4 AES50 Status This option allows you set up the AES50 status of the DL431 Mic Splitter. To view/clear the AES50 status Enter the main menu, select option 4 and then continue to set the unit’s operating mode.

  • Page 63: Option 5 S/W Version

    Option 5 S/W Version Option 5 S/W Version This option displays the version of the software currently running on your DL431 Mic Splitter. To view the current host software and CBMA versions To view the current host software version of your unit and the console bitmap array (CBMA) version, simply select option 5 from the main menu, see “To enter the main...
  • Page 64 Chapter 6: Main Menu DL431 Mic Splitter Operator Manual...

  • Page 65: Operation

    Chapter 7: Operation This chapter gives the operating instructions for the DL431 Mic Splitter. Default display The default display appears after the unit has been switched on and has powered up. The following diagram shows a typical default display. The first line of text displays the company Current gain value of the selected name and model of the unit.

  • Page 66: Adjusting A Channel

    To select a channel To select a channel, simply press the SELECT button (in the analogue output metering section) of the channel you want, for example, channel 6 in the illustration below. Button will illuminate to indicate selection. DL431 Mic Splitter Operator Manual...

  • Page 67: To Switch On The 48V Phantom Voltage

    Make sure the correct channel is selected, then switch the 30Hz filter on/off by pressing the 30Hz filter switch on the control panel. The 30Hz LED in the channel’s panel will illuminate when it is on; see “analogue output metering section” on page 31. DL431 Mic Splitter Operator Manual...

  • Page 68: To Adjust The Gain

    The service manual for this equipment is available for purchase. Please contact your local distributor for details. Routine maintenance To help keep your DL431 Mic Splitter unit in good working order and to make sure it gives you optimum performance, we recommend that you carry out the following: Monthly •...

  • Page 69: Cleaning

    Switch off the unit and electrically isolate it from the mains before cleaning. Clean the DL431 Mic Splitter using a dry, lint-free cloth. Do not use harsh abrasives or solvents. When cleaning the unit, take great care not to damage faders, pushbuttons etc.
  • Page 70 Chapter 7: Operation DL431 Mic Splitter Operator Manual...

  • Page 71: Application Notes

    Chapter 8: Application Notes Using the 30Hz filter The DL431 Mic Splitter’s 30Hz filter is an analogue high pass filter (HPF). It is a very low frequency signal filter with a 30Hz corner frequency and 12dB per octave Butterworth roll off. This filter can be switched into circuit following the mic amp to make better use of the A/D conversion headroom by removing the very low frequency audio content.
  • Page 72 Chapter 8: Application Notes DL431 Mic Splitter Operator Manual...

  • Page 73: Functional Block Diagram

    Appendix A: Functional Block Diagram The following is the signal flow diagram of the DL431 Mic Splitter. DL431 Mic Splitter Operator Manual...
  • Page 74 Appendix A: Functional Block Diagram DL431 Mic Splitter Operator Manual...

  • Page 75: Technical Specification

    XL8 XL8 Live Performance System, please refer to the XL8 Control Centre Operator Manual (part number DOC02-XL8). Due to a policy of continual improvement, Midas reserves the right to alter the function or specification at any time without notice.
  • Page 76 AES50 (24 channels of digital audio) on Ethercon XLR providing dual redundant back up of A channels Duplicate connector B AES50 (24 channels of digital audio) on Ethercon XLR providing dual redundant back up of B channels DL431 Mic Splitter Operator Manual...
  • Page 77 Thank you for reading through this Operator Manual. We hope you found it useful. Please feel free to send us your comments. Our contact details can be found at the front of this manual. More detailed information on the XL8 Live Performance System can be found in the XL8 Control Centre Operator Manual, part number DOC02-XL8.
  • Page 78 Midas Klark Teknik Building, Walter Nash Road, Kidderminster. Worcestershire. DY11 7HJ. England. Tel: +44 1562 741515, Fax: +44 1562 745371 Email: info@uk.telex.com Website: www.midasconsoles.com...

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