Midas DL451 User Manual
DL451 Modular I/O
Operator Manual
Midas Klark Teknik Limited,
Klark Industrial Park,
Walter Nash Road,
Kidderminster.
Worcestershire.
DY11 7HJ.
England.
Tel: +44 1562 741515
Fax: +44 1562 745371
Email: info@midasklarkteknik.com
Website: www.midasconsoles.com
DL451 Modular I/O — Operator Manual
DOC02-DL451 Issue B — April 2010
© Red Chip Company Ltd.
In line with the company’s policy of continual improvement, specifications and function may be
subject to change without notice. This document was correct at the time of writing. E&OE.
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.
1 Read these instructions.
2 Keep these instructions.
3 Heed all warnings.
4 Follow all instructions.
5 Do not use this apparatus near water.
6 Clean only with a dry cloth.
7 Do not block any of the ventilation
openings. Install in accordance with the
manufacturer’s instructions.
8 Do not install near any heat sources such
as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that
produce heat.
9 Do not defeat the safety purpose of the
polarized or grounding-type plug. A
polarized plug has two blades with one
wider than the other. A grounding type
plug has two blades and a third grounding
prong. The wide blade or the third prong
are provided for your safety. If the
provided plug does not fit into your outlet,
consult an electrician for replacement of
the obsolete outlet.
10 Protect the power cord from being walked
on or pinched particularly at plugs,
convenience receptacles and the point
where they exit from the apparatus.
11 Only use attachments/accessories
specified by the manufacturer.
12 Unplug this apparatus during lightning
storms or when unused for long periods of
time.
13 Refer all servicing to qualified personnel.
Servicing is required when the apparatus
has been damaged in any way, such as
power-supply cord or plug is damaged,
liquid has been spilled or objects have
fallen into the apparatus, the apparatus
has been exposed to rain or moisture,
does not operate normally, or has been
dropped.
14 Use the mains plug to disconnect the
apparatus from the mains.
15 Warning: To reduce the risk of fire or
electric shock, do not expose this
apparatus to rain or moisture.
16 Warning: Do not expose this
equipment to dripping or splashing
and ensure that no objects filled with
liquids, such as vases, are placed on
the equipment.
17 Warning: The mains plug of the power
supply cord shall remain readily
operable.
Midas
EC-Declaration of Conformity
The undersigned, representing the following manufacturer
Manufacturer: Address:
Midas Klark Teknik Ltd. Klark Industrial Park, Walter Nash Road,
Kidderminster. Worcestershire. DY11 7HJ.
hereby declares that the following product
Product Type Number Product Description Nominal Voltage(s) Current Freq.
DL451 Audio System Modular I/O
115V AC
230V AC
0.5A
0.3A
50/60Hz
is in conformity with the regulations of the following marked EC-directives and bears the
-mark accordingly
reference number title
2004/108/EC EMC Directive (EMC)
2006/95/EC Low-Voltage Directive (LVD)
The conformity of the product with EC Directives for use in environment E4 is provided by compliance with
the following standards:
Standards/date:
Applied Electrical Safety test standards:
reference number title
EN 60065:2002
Audio, video and similar electronic apparatus. Safety requirements
Applied EMC emission test standards:
ref. no. title
EN 55103-1:1996
Class A
CISPR 22: Radiated disturbance,
CISPR 22: Conducted disturbance,
CISPR 16: Discontinuous
EN 61000-3-2:2000 Mains
EN 61000-3-3:1995 Mains voltage
EN 55103-1 Annex A: Radiated
magnetic disturbance, 50Hz-50kHz
30-1000MHz
ac & signal ports
disturbance
harmonics
flicker
Applied EMC immunity test standards:
ref. no. title
EN 55103-2:1996
Class A
EN 55103-2 Annex A: Magnetic LF
EN 61000-4-4:1995: Fast transient
EN 61000-4-5:1995: Surge, ac port
EN 61000-4-6:1996: Conducted RF
EN 61000-4-11:1994: Mains voltage
EN 61000-4-2:1995 Electrostatic
discharge
EN 61000-4-3:1996: Radiated RF
disturbance, 80-1000MHz
disturbance, 50Hz–10kHz
bursts, ac & signal ports
field, ac & signal ports
dips and interruptions
Place, date: Kidderminster, UK
15
General Manager AVP, Product Development
Printed name: John Oakley Printed name: Alex Cooper
th
April 2010
DOC04-DL451ECDOC Rev. B
Licences
The following are the license agreements applicable to the Midas Digital Equipment.
End-User Licence Agreement for Midas™ and Klark Teknik™ Software
IMPORTANT - Please read this document carefully before using this Midas™ or
Klark Teknik™ Product. This is an agreement governing your use of software or
other machine instructions already installed on this Midas™ or Klark Teknik™
Product, as well as other software that we provide for installation on this Product.
The Midas™ or Klark Teknik™ Product will not operate in accordance with its
documentation without this software.
THIS AGREEMENT ("AGREEMENT" OR "LICENCE") STATES THE TERMS AND CONDITIONS UPON WHICH
MIDAS KLARK TEKNIK LIMITED ("COMPANY") OFFERS TO LICENSE THE INSTALLED FIRMWARE,
SOFTWARE AND/OR PROGRAMS ("the SOFTWARE") WITH THE MIDAS™ OR KLARK TEKNIK™ CONSOLE
OR SIGNAL PROCESSING PRODUCT ("PRODUCT") IN WHICH IT HAS BEEN INSTALLED BY, OR FOR
WHICH IT IS PROVIDED BY, THE COMPANY. BY USING THIS PRODUCT YOU WILL BE AGREEING TO
BECOME BOUND BY THE TERMS OF THIS LICENCE. IF YOU DO NOT AGREE TO THE TERMS OF THIS
LICENCE, DO NOT USE THIS PRODUCT AND PROMPTLY RETURN THE PRODUCT TO THE PLACE WHERE
YOU OBTAINED IT FOR A FULL REFUND. You agree to notify any persons whom you permit to operate
this Product of the terms of this Licence, and to require them to comply with these terms.
The Software is licensed, not sold, to you for use only under the terms of this Licence, and the
Company reserves all rights not expressly granted to you. The Company retains ownership of all copies
of the Software itself, and all proprietary parts of it, including those stored on or in the Product.
1. Licence: Subject to the terms and conditions of this agreement, the Company grants you, and
other persons you permit to operate the Product, a personal, limited, non-exclusive,
non-transferable licence to use the Software only on the single Product unit in which it has been
installed.
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contain trade secrets and other proprietary matter, including confidential information relating to
the specifications and performance characteristics of this Product. Save for such elements as
may be licensed to the Company, as described in paragraph 5, all rights to copyrights, trade
marks and trade secrets in the Software, or any modifications to it, are owned by the Company.
Unauthorised use or copying of the Company's proprietary Software, or any portion thereof, or
copying of those written materials, is prohibited. (b) You may not create, market, distribute, or
transfer copies of the Company's proprietary Software, or any part of it, to others, or duplicate,
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and subject at all times to this Licence. YOU MAY NOT REVERSE ENGINEER, DECOMPILE,
DISASSEMBLE, EXTRACT OR SEPARATE OUT, MODIFY, ADAPT, PORT, OR TRANSLATE THE
SOFTWARE, DERIVE THE SOURCE CODE OF THE SOFTWARE OR CREATE DERIVATIVE WORKS
BASED ON THE SOFTWARE OR ANY ACCOMPANYING WRITTEN MATERIALS, save as is allowed by
licences pertaining to component parts of the Software which are licensed by third parties, as
described under paragraph 5, or otherwise by law. (c) In the event you violate any term of this
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using the Software and destroy any copies of the Software.
3. Limited Warranty: Subject to your installation of any Software updates issued by the Company
as described herein, and the condition below, the Company warrants that the Software will
operate in compliance with the Software's material specifications and documentation for a period
of 90 days from your purchase of this Product. The Software is provided "as is" and the Company
does not warrant that the operation of the Software will meet your requirements or operate free
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WARRANTIES AND CONDITIONS, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT OF THIRD
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DATE INFORMATION. You understand that the Company may update or revise the Software but
in so doing incurs no obligation to furnish such updates to you. However, the Company may in its
discretion make updates available from time to time upon such terms and conditions as it shall
determine. It is a condition of the above warranty that you install any such Software updates, as
may be issued from time to time by the Company for the Software, in accordance with the
Company's instructions, and if you do not do so such warranty will cease to apply. You may view
current Software updates at http://www.klarkteknik.com and http://www.midasconsoles.com.
4. Limited Liability: THE ENTIRE RISK ARISING OUT OF YOUR USE OR PERFORMANCE OF THE
SOFTWARE REMAINS WITH YOU. THE LIABILITY OF THE COMPANY FOR ANY CLAIMS ARISING
OUT OF THIS LICENCE AND/OR BASED UPON THE SOFTWARE, REGARDLESS OF THE FORM OF
ACTION, AND INCLUDING WORK STOPPAGE, PRODUCT FAILURE OF MALFUNCTION OR ANY
OTHER COMMERCIAL LOSS OR DAMAGE, SHALL NOT EXCEED THE COST OF THE LICENCE FEE
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THAT THE AMOUNT YOU PAID FOR THE SOFTWARE AND/OR THE PRODUCT REFLECTS THIS
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COMPANY'S LIABILITY FOR DEATH OR PERSONAL INJURY CAUSED BY NEGLIGENCE OR ANY
OTHER LIABILITY WHICH CANNOT BE EXCLUDED OR LIMITED BY LAW.
5. Other Third-Party Computer Programs: As referred to herein, the term "Software" refers
only to proprietary Midas™ or Klark Teknik™ software, owned by the Company, that has been
provided to you for installation on, or already installed in, a Product. In addition to the Software,
you may have also been provided, at no additional charge, with a version of the widely-available
GNU Linux Operating System, which is a modular operating system made up of hundreds of
individual software components, each of which was written, and the copyright and other rights in
which are owned individually, by various parties (collectively, "the GNU Linux Programs"). Each
component has its own applicable end user licence agreement, and many of these agreements
permit you to copy, modify, and redistribute the applicable software, but you must review the
on-line documentation that shares a directory or otherwise accompanies each of the GNU Linux
Programs provided to you for the specific terms and conditions. Nothing in this Licence limits
your rights under, or grants you rights that supersede, the terms of any other applicable end user
licence agreement. If you wish to receive a computer-readable copy of the source code for any
of the GNU Linux Programs that have been provided with your Midas™ or Klark Teknik™ Product,
send a cheque or money order (no cash accepted), your address and [£10.00] to cover the cost
of optical media, postage and handling, to:
Midas Klark Teknik Limited
ATTN: Linux Programs CD for Midas™/Klark Teknik™
Walter Nash Road,
Kidderminster.
Worcestershire.
DY11 7HJ.
England.
In your request, indicate your Product's name and model number, serial number and
version/release information. In your request, also indicate the relevant Software version/release
infor mation. This offer, made pursuant to the GNU Linux Programs' end user licence agreements,
may expire according to the terms of those agreements, in which case your cheque will be
returned to you or destroyed at our option. Please note that the GNU Linux Programs that may
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Other updated Linux distributions containing application software are widely available from a
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6. Termination: This Licence will terminate immediately if you violate any of the Licence terms.
Upon termination you must discontinue use of the Software, and either destroy, erase or return
to Company all copies of the Software in your possession, custody or control, including those in
or on the Product.
7. General: This Licence constitutes the entire agreement between you and the Company with
respect to this Software and, save in the case of fraud, supersedes any other communication
(including advertising). Company reserves all rights not expressly granted to you in this licence.
If any provision of this Licence is held unenforceable, that provision shall be enforced to the
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this Licence shall continue in full force and effect. This Licence shall be governed by English law
and the Courts of England and Wales will have exclusive jurisdiction to hear and decide any
dispute concerning it or its formation. No breach by you of any provision of this Licence shall be
waived or discharged except with the express written consent of the Company and no failure or
delay by the Company to exercise any of its rights under this Licence shall operate as a waiver
thereof and no single or partial exercise of any such right shall prevent any other or further
exercise of that or any other right. You acknowledge that the Company could be irreparably
damaged if the terms of this Licence were not specifically enforced, and agree that the Company
may seek appropriate equitable remedies with respect to breaches of this Licence, including
injunctive relief, in addition to such other remedies as the Company may otherwise have
available to it under applicable laws.
GNU General Public License (GPL)
For details of the Third Party Software License Attribution, Copyright and Terms and Conditions and
Notices, and the GNU LESSER GENERAL PUBLIC LICENSE, see the Midas Digital Equipment GNU
General Public License (GPL) Booklet part number DOC04-GPL issue A.
xi
Precautions
Before installing, setting up or operating this equipment, make sure that you have read
and fully understand all of this section and the “IMPORTANT SAFETY INSTRUCTIONS” at
the front of this manual.
This equipment is supplied by a mains voltage that can cause electric shock injury!
The following must be observed in order to maintain safety and electromagnetic compatibility (EMC)
performance.
Safety warnings
Signal 0V is connected internally to the
chassis.
To electrically isolate the equipment,
switch off the mains on/off switch at the
rear of unit. Make sure that the power at
the mains outlet is off, and then disconnect
the mains cable from the mains outlet.
To avoid electrical shock do not remove
covers.
The power supplies - even the DC ones have a high current!
General precautions
In the event of ground loop problems,
disconnect the signal screen at one end of the
connecting cables. Note that this can only be
done when the equipment is used within a
balanced system.
Do not remove, hide or deface any warnings or
cautions.
Power
The power supplies contain LETHAL VOLTAGES
greatly in excess of the mains voltage and that
its rails can produce extremely large currents
that could burn out equipment and wiring if
shorted.
The internal power supplies are of the switch
mode type that automatically senses the
incoming mains voltage and will work where the
nominal voltage is in the range 100VAC to
240VAC.
A mains inlet is provided on the rear panel. The
correct lead for connection in the area to which
the unit was shipped is supplied with the unit.
The equipment should only be plugged into the
mains outlet using the supplied lead.
When removing the equipment’s electric plug
from the outlet, always hold the plug itself and
not the cable. Pulling out the plug by the cable
can damage it.
Never insert or remove an electric plug with wet
hands.
Handling the equipment
Completely isolate the equipment electrically
and disconnect all cables from the equipment
before moving it.
Take great care when lifting or moving the
equipment and always take its size and weight
into consideration.
Do not insert your fingers or hand in any gaps or
openings on the equipment, for example, vents.
Avoid inserting or dropping foreign objects, such
as paper, plastic, metal etc., into any gaps or
openings on the equipment, for example, vents.
If this happens, turn off the power immediately
and unplug the power from the AC outlets.
Then have the equipment inspected by the
manufacturer's qualified service personnel.
Installation
Before installing the equipment:
• Make sure the equipment is correctly
connected to the protective earth conductor
of the mains voltage supply of the system
installation through the mains leads.
• Power to the equipment must be via a fused
spur.
• Power plug must be inserted in a socket
outlet provided with a protective earth
DL451 Modular I/O
Operator Manual
xii Precautions
contact. The electrical supply at the socket
outlet must provide appropriate
over-current protection.
• Both the mains supply and the quality of
earthing must be adequate for the
equipment.
• 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.
Location
• Ideally a cool area is preferred not in close
proximity to power distribution equipment
or other potential sources of interference.
• Do not install the equipment in places of
poor ventilation.
• Do not install this equipment in a location
subjected to excessive heat, dust or
mechanical vibration. Allow for adequate
ventilation around the equipment, making
sure that its fans and vents are not
obstructed. To prevent excessive heating of
the equipment, avoid mounting it directly
above power amplifiers or other devices
that radiate significant amounts of heat
such as, radiators and heaters. Keep the
equipment out of direct sunlight.
• Do not place the equipment in an unstable
condition where it might accidentally fall
over.
• Make sure that the mains voltage and fuse
rating information of the equipment will be
visible after installation.
Radio frequency
interference — Class A
device
This equipment has been tested and found to
comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide
reasonable protection against harmful
interference when the equipment is operated
in a commercial environment. This equipment
generates, uses, and can radiate radio
frequency energy and, if not installed and used
in accordance with the instruction manual,
may cause harmful interference to radio
communications. Operation of this equipment
in a residential area is likely to cause harmful
interference in which case the user will be
required to correct the interference at his own
expense.
Electric fields
Caution:
In accordance with Part 15 of the FCC
Rules & Regulations, “… changes or
modifications not expressly approved by
the party responsible for compliance
could void the user's authority to operate
the equipment.”
Should this product be used in an
electromagnetic field that is amplitude
modulated by an audio frequency signal (20Hz
to 20kHz), the signal to noise ratio may be
degraded. Degradation of up to 60dB at a
frequency corresponding to the modulation
signal may be experienced under extreme
conditions (3V/m, 90% modulation).
Audio connections
To ensure the correct and reliable operation of
the equipment, only high quality balanced,
screened, twisted pair audio cable should be
used.
XLR connector shells should be of metal
construction so that they provide a screen
when connected to the console and, where
appropriate, they should have Pin 1 connected
to the cable screen.
Operation
To avoid electrical shock, never operate the
equipment with the covers removed.
Safety equipment
Never remove, for example, covers, housings
or any other safety guards. Do not operate
the equipment or any of its parts if safety
guards are ineffective or their effectiveness
has been reduced.
DL451 Modular I/O
Operator Manual
Precautions xiii
Optional equipment
Unless advised otherwise, optional equipment
must only be installed by service personnel
and in accordance with the appropriate
assembly and usage regulations.
Special accessories
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.
DL451 Modular I/O
Operator Manual
xiv Precautions
DL451 Modular I/O
Operator Manual
xv
Contents
Information page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
EC-Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Licences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Warranty and registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Intended readers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Package contents/unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Chapter 2 Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
psu panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Ethernet control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
AES50 audio panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 3 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Rear panel connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 4 Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Switching the unit on/off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Setting up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 5 Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Menu navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Menu flowchart (options 1 to 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Menu flowchart (option 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1 AES clock menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2 Set ID menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Digital boards menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DL451 Modular I/O
Operator Manual
xvi Contents
Chapter 6 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Default display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Appendix A Functional Block Diagrams . . . . . . . . . . . . . . . . . . . . 21
Analogue input module (DL441) . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Analogue output module (DL442) . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Analogue Jack I/O module (DL443) . . . . . . . . . . . . . . . . . . . . . . . . . .23
AES/EBU digital I/O module (DL452) . . . . . . . . . . . . . . . . . . . . . . . . .24
Appendix B Technical Specification . . . . . . . . . . . . . . . . . . . . . . . 25
General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Analogue inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Analogue outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
MIDI and GPIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Digital system inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . .26
Appendix C I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
DL441 analogue input module . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
DL442 analogue output module . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
DL443 analogue Jack I/O module . . . . . . . . . . . . . . . . . . . . . . . . . . .30
DL452 digital I/O module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Appendix D Replacing An I/O Module . . . . . . . . . . . . . . . . . . . . . 33
Replacing a module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Appendix E Service Information . . . . . . . . . . . . . . . . . . . . . . . . . 35
Routine maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Monthly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Yearly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Cleaning the LCD screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Cleaning the internal fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Equipment disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Appendix F XL8 Live Performance System . . . . . . . . . . . . . . . . . . 37
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
System components (standard supply) . . . . . . . . . . . . . . . . . . . . . . .40
System interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
FOH and MON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Mix matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Input channel processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Mix channel processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Output channel processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Effects processing and GEQs . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Audio physical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Uses of the configurable audio connections . . . . . . . . . . . . . . . . . . . .46
Surround capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
DL451 Modular I/O
Operator Manual
Contents xvii
Resilience to failure (redundancy) . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Control software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Console linking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Integration of third party software . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Appendix G Setting Up An XL8 System . . . . . . . . . . . . . . . . . . . . . 55
Initial set-up procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Unpacking the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Making up the racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Outboard equipment racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Stage rack 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Wiring instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
XL8 system interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Cable type and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Powering the XL8 system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Switching the XL8 Control Centre on/off . . . . . . . . . . . . . . . . . . . . . . 64
Setting up the ID of the DL4n1 units . . . . . . . . . . . . . . . . . . . . . . . . 65
DL451 Modular I/O
Operator Manual
xviii Contents
DL451 Modular I/O
Operator Manual
Chapter 1: Introduction
1
The DL451 Modular I/O is a three-unit (3U) high 19” rack unit that provides connection
of up to 24 audio inputs/outputs. It has a user-configurable modular
that can be configured as any combination of analogue mic/line in, analogue out and
digital in/out (AES/EBU). Musical instrument digital interface (MIDI) and general
purpose input/output (GPIO) connections are supplied as standard. The digital audio
interface is via dual-redundant AES50 connections. Five DL451’s are supplied with each
XL8 Live Performance System.
Your DL451 Modular I/O was conceived by Midas to offer audio professionals
high-performance audio equipment, designed to provide no-compromise sonic quality
with a feature set that offers all essential facilities and functions. It represents the very
best of British design and engineering combined with contemporary, efficient
manufacturing methods, and will give you many years of reliable service.
So, to obtain the best results with a minimum of effort, please read this operator
manual and, finally, enjoy your Midas DL451 Modular I/O!
1
3x8 XLR format
Features
The DL451 Modular I/O comprises:
• Up to 24 audio inputs and 24 audio outputs.
• Modular construction providing user-configurable 3x8 XLR format.
• Fully isolated GPIO connections supplied as standard.
• in, out and thru MIDI sockets supplied as standard.
• Dual redundant AES50 connections provided at the digital audio interface.
Warranty and registration
Midas has total confidence in the quality and reliability of this product. To back this up,
this product comes with the standard Midas and Klark Teknik three year warranty.
Please take the time to register your product by completing and returning the
registration card or registering on our website at www.midasconsoles.com.
1. It is envisaged that new modules will be developed to service market requirements as they continue
to evolve.
DL451 Modular I/O
Operator Manual
2 Chapter 1: Introduction
About this manual
This is the operation manual for the DL451 Modular I/O. It is intended to help get your
DL451 Modular I/O 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 DL451 Modular I/O there is a description of the front and rear
panels, along with easy-to-follow user instructions.
The following chapter gives a brief overview of the XL8 Live Performance System and
includes system interconnection details. However, if you want to learn more about the
XL8 Live Performance System, please go on to read the XL8 Control Centre operator
manual (part number DOC02-XL8), which provides a full and comprehensive guide.
Intended readers
This manual is aimed at professionals, such as front of house (FOH) and monitor (MON)
engineers who will be using this equipment in a live performance environment. It is
assumed that the reader has prior experience of using professional audio equipment
and has, most likely, undergone training on this system.
The DL451 Modular I/O forms an integral part of the XL8 Live Performance System.
The appendices in this manual contain a brief overview of the XL8 Live Performance
System and include system interconnection details. However, if you want to learn more
about the XL8 Live Performance System, see the Owner’s Manual (part number
DOC02-XL8), which provides a full and comprehensive guide.
Package contents/unpacking
Please retain the original packing for use should you need to transport or ship this unit.
After unpacking, please inspect the unit carefully for any signs of damage that may
have occurred in transit and notify the courier immediately if you feel that any damage
has occurred.
The following items are included in the DL451 Modular I/O package:
• 1-off DL451 Modular I/O Safety Sheet (part number DOC04-DL451).
• 1-off warranty card (part number DOC04-WARRANTY).
• 1-off mains lead (part number PWR21-MAINSLEAD).
DL451 Modular I/O
Operator Manual
3
6
7
2 4
5
1
1
LCD screen
Programming
buttons
Chapter 2: Front Panel
The front panel comprises various sections, as follows:
3
Item Description
1 Air intakes for fan cooling. Do not obstruct.
2 psu power supply unit monitoring panel (see “psu panel” on page 4).
3 Ethernet control panel (see “Ethernet control panel” on page 4).
4 AES50 audio panel monitors (see “AES50 audio panel” on page 4).
5 Control panel containing LCD screen and four pushbuttons (see “Control
6 Cut-outs for rack mounting fixings.
7 Three rows of eight write-on strips for manually marking the A, B or C
Control panel
The control panel is used for setting up the DL451 Modular I/O unit via a number of
menus in programming mode, and comprises an LCD panel and four buttons.
panel” below).
module analogue/digital channel assignments.
LCD screen has 32 characters (2 x 16), and is used with the adjacent programming
buttons to program the DL451 Modular I/O (see “Menu navigation” on page 9). It also
shows the default diplay during normal operation.
Each programming button illuminates with a blue backlight when pressed.
DL451 Modular I/O
Operator Manual
4 Chapter 2: Front Panel
psu panel
This panel monitors the supply voltage. The panel LEDs
illuminate to show that the voltage rails are active. There are
five yellow LEDs, each one representing a particular voltage
supply, that is, +18V, -18V, +5V, +3.3V and +48V.
Ethernet control panel
The Ethernet control panel has two green LEDs, X and Y, which have
three states of illumination to indicate:
• Flashing - active master.
• On - connected.
• Off - not connected.
AES50 audio panel
In the AES50 panel, each X and Y channel has a green ok LED and red
error LED. These illuminate to indicate that the communications to these
channels is ok or that there is an error.
DL451 Modular I/O
Operator Manual
Air outlets
Mains on/off switch
Chapter 3: Rear Panel
The rear panel comprises the following:
•Three module slots, A, B and C, which can contain any combination of modules (see
Appendix C "I/O Modules" on page 27).
• Two sets of Ethercon XLR X and Y sockets:
• Ethernet control.
• AES50 audio.
•Two USB connectors: host and slave.
• Three MIDI sockets: in, out and thru.
• Two GPIO sockets: in and out.
• Mains IEC socket and adjacent on/off switch.
5
DL451 Modular I/O
Operator Manual
6 Chapter 3: Rear Panel
Laptop PC
21
Mains IEC
connector
3
6
5
4
7
Rear panel connections
Item Description
1 Y and X AES50 audio Ethernet sockets for passing audio and control
data to/from router.
2 Y and X Ethernet control Ethernet sockets for connection of ‘tunnelling’
Ethernet.
3 USB slave (type B) and host (type A) sockets for connection of a laptop
PC.
4 Three MIDI (musical instrument digital interface) sockets, in, out and
thru for connection of a musical instrument, such as a synthesiser. in
socket receives MIDI data. thru socket gives out the same MIDI data
that is received by the in socket. out socket gives out MIDI data
generated by the instrument itself.
5 Two GPIO 25-way connectors, in and out, for control of external
devices.
6 Mains IEC socket with on/off switch.
7 Three user-configurable modules.
DL451 Modular I/O
Operator Manual
Chapter 4: Getting Started
This section shows you how to connect up, switch on, set up and configure the DL451
Modular I/O unit.
Connecting up
Connect up the following, as appropriate, to the rear panel of your DL451 Modular I/O
unit:
• Inputs/outputs - connect up modules in slots A, B and C. These can be any
combination of modules DL441, DL442 and DL452; see page 5 in Chapter 3 ”Rear
Panel”.
• AES50 - connect the AES50 audio X and Y sockets to the appropriate AES50
audio sockets on the X and Y routers.
• Ethernet - connect the Ethernet control X and Y sockets to the appropriate
Ethernet control sockets on the X and Y routers.
7
• MIDI - connect the three MIDI 5-pin DIN connectors, if required.
• GPIO - connect the 25-way D-type connectors, if required.
• USB - connect a laptop/PC, if required.
• Mains power supply - insert the IEC connector of the mains cable into the rear of
the unit and then plug it into the mains power outlet.
Switching the unit on/off
After you have connected up your DL451 Modular I/O, it is ready to be switched on. To
do this, switch on the mains on/off switch on the rear of the unit.
To switch off the DL451 Modular I/O unit, press the mains on/off switch.
DL451 Modular I/O
Operator Manual
8 Chapter 4: Getting Started
Setting up
Initial setting up of the DL451 Modular I/O involves allocating an ID for it within the XL8
network system environment (see “To set up the ID of the unit” on page 14).
Configuration
Configure the DL451 Modular I/O unit to suit your operating requirements (see
Chapter 5 “Programming Mode”).
DL451 Modular I/O
Operator Manual
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