XTA DC1048 User Manual
Tel: 01299 879977 (Intl. +44 1299 879977)
Fax: 01299 879969 (Intl. +44 1299 879969)
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Operator’s Manual Revision 1.10
DC1048
XTA Electronics Ltd.
The Design House,
Vale Business Park,
Worcester Road,
Stourport-on-Severn,
Worcs. DY13 9BZ.
England
Web: http://www.xta.co.uk
x
© XTA Electronics Ltd 2012
First published 01/2010
If you have any comments or suggestions about this manual, please
contact XTA at the address above, or email info@xta.co.uk
Operator’s Manual
DC1048 Integrated Audio Management
Page 1
Page 2
DC1048 Integrated Audio Management
Operator’s Manual
Contents
DECLARATION OF CONFORMITY .................................................................... 6
Important Safety Instructions ........................................................................... 7
Instructions De Securite Importantes ............................................................ 8
Thanks ............................................................................................................................ 9
Unpacking the unit .................................................................................................... 9
Introduction ................................................................................................................ 10
Installation .................................................................................................................... 11
Operation ...................................................................................................................... 12
Front Panel Indicators ........................................................................................... 13
1: “System” Menu Button .................................................................................................................................... 13
2: “GPI” Menu Button ........................................................................................................................................... 13
3: “Comms” Menu Button ................................................................................................................................... 13
4: Input Metering .................................................................................................................................................... 13
5: LCD Status Display .......................................................................................................................................... 13
6: USB Connector.................................................................................................................................................. 14
7: Output Metering ............................................................................................................................................... 14
8: Preset Selection Buttons ............................................................................................................................. 14
Rear Panel Controls, Connections and Indicators .................................. 15
1: Mains Power Inlet and Power Switch ...................................................................................................... 15
2: RS485 Connection .......................................................................................................................................... 15
3: GPI Port .................................................................................................................................................................. 15
4: Balanced Audio Outputs ............................................................................................................................... 15
Operator’s Manual
DC1048 Integrated Audio Management
Page 3
Menus ............................................................................................................................ 16
Overview
.......................................................................................................................................16
Remote Control and Initial Set-up .................................................................... 17
Overview ....................................................................................................................................... 17
Direct USB Connection ........................................................................................................... 17
Layout of the Main Window............................................................................................................................... 21
DC1048 “Front Panel” Controls, Readouts and Indicators ............................................................ 27
Timed Presets and Preset Files ........................................................................................................................ 31
Connection of Multiple Units on an RS485 Network ........................................... 34
Connection via front panel USB and break-in to the RS485 Network .................................... 34
Connection directly to the RS485 Network ........................................................................................... 35
Security and Locking ............................................................................................ 37
Overview ..................................................................................................................................... 37
Local Front Panel Locking ................................................................................................................................. 37
Forgotten the PIN? ............................................................................................................................................... 37
Security in ICORE ............................................................................................................................................ 38
The GPI Port ............................................................................................................. 40
Overview .................................................................................................................................... 40
Isolated Connection ............................................................................................................................................. 40
Non-Isolated Connection .................................................................................................................................... 41
Simple Mode .............................................................................................................................................................. 41
Complex Mode ......................................................................................................................................................... 42
Panel Mode ............................................................................................................................................................... 42
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DC1048 Integrated Audio Management
Operator’s Manual
Appendix I: Updating Device Firmware.......................................................43
Overview ..................................................................................................................................... 43
Update Procedure Using ICORE ............................................................................................................. 43
Appendix II: Limiter Types and Setting Thresholds ............................. 45
Program Limiter and “D-Max” Limiter .......................................................................... 45
Program Limiter ..................................................................................................................................................... 45
“D-Max” Clip Limiter ............................................................................................................................................ 46
Appendix III: Parametric Filter Types and Their Uses ........................ 50
Standard Parametric EQ .................................................................................................................................. 50
Shelving EQ (High Shelf shown) .................................................................................................................... 51
Creating a Flat-topped EQ Response............................................................................................................ 51
Notch Filter ............................................................................................................................................................... 52
All Pass Filter .......................................................................................................................................................... 53
Phase Filter ............................................................................................................................................................... 53
Low/High Pass Variable ‘Q’ Filter (Low Pass shown) ..................................................................... 54
Elliptical filters ........................................................................................................................................................ 55
Appendix IV: Maintenance ............................................................................... 56
Appendix V: Specifications ............................................................................... 57
Index ............................................................................................................................. 59
Operator’s Manual
DC1048 Integrated Audio Management
Page 5
DECLARATION OF CONFORMITY
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We, the manufacturer:
XTA Electronics Ltd.,
The Design House,
Vale Business Park,
Worcester Road,
Stourport on Severn,
Worcestershire,
England
DY13 9BZ
acknowledge our responsibility that the following product:
Kind of equipment: Audio processor
Commodity Code: 8518408990
Type Designation: DC1048
is manufactured:
in accordance with EMC Directive 2004/108/EC,
in compliance with the following norm(s) or document(s):
Technical Regulations: EN55103-1:1996, EN55103-2:1996
and
in accordance with the Low Voltage Directive 2006/95/EC,
in compliance with the following norm(s) or document(s):
Technical Regulations: EN/IEC60065:2002 7th Edition
Signed: …………………………………………………………………
Name: Alex Cooper
Position: Research and Development Manager
Date: January 2012
Page 6
DC1048 Integrated Audio Management
Operator’s Manual
Important Safety Instructions
CAUTION: RISK OF ELECTRIC SHOCK.
DO NOT OPEN
The lightning flash with arrowhead
symbol within an equilateral triangle
is intended to alert the user to the
presence if uninsulated “dangerous
voltage” within the product’s
enclosure that may be of sufficient
magnitude to constitute a risk of
electric shock to persons.
WARNING: Apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a
protective earthing connection.
WARNING: To prevent injury, this apparatus must be securely attached to the rack in accordance
with the installation instructions.
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 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 fi t 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.
The exclamation point within an
equilateral triangle is intended to
alert the user of important
operating and maintenance
(servicing) instructions in the
literature accompanying the
appliance.
12. Use only with the cart, tripod, bracket or
table specified by the manufacturer, or sold with
the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to
avoid injury from a tip over.
13. Unplug this apparatus during lightning
storms or when unused for a long period of time.
14. Refer all servicing to qualified service
personnel. Servicing is required when the
apparatus has been damaged in any way, such
as if the 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.
15. 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.
16. To completely disconnect this equipment
from the AC mains, disconnect the power cord
from the mains circuit breaker.
17. This unit is fitted with a 3-wire power cord.
For safety reasons, THE EARTH LEAD SHOULD
NOT BE DISCONNECTED IN ANY
CIRCUMSTANCE.
Operator’s Manual
DC1048 Integrated Audio Management
Page 7
Instructions De Securite Importantes
ATTENTION: RISQUE DE CHOC ELECTRIQUE.
NE PAS OUVRIR
Le symbole représentant un éclair fléché
dans un triangle équilatéral a pour but
d’alerter l’utilisateur de la présence d’une
“tension dangeruese” non isolée à l’intérieur
du boitier, pouvant être d’une force
suffisante pour constituer un risqué
d’électrocution.
ATTENTION: Appareils de construction de CLASSE I doit être raccordé au réseau électrique via une
prise de courant reliée à la terre.
ATTENTION: Pour éviter toute blessure, cet appareil doit être solidement fixé à la torture,
conformément aux instructions d'installation.
1. Lisez ces consignes.
2. Conservez ces consignes.
3. Respectez tous les avertissements.
4. Respectez toutes les consignes d’utilisation.
5. N’utilisez jamais l’appareil à proximité d’un
liquide.
6. Nettoyez l’appareil avec un chiff on sec.
7. Veillez à ne pas empêcher la bonne
ventilation de l’appareil via ses ouïes de
ventilation. Respectez les consignes du
fabricant concernant l’installation de l’appareil.
8. Ne placez pas l’appareil à proximité d’une
source de chaleur telle qu’un chauff age, une
cuisinière ou tout appareil dégageant de la
chaleur (y compris un ampli de puissance).
9. Ne supprimez jamais la sécurité des prises
bipolaires ou des prises terre. Les prises
bipolaires possèdent deux contacts de largeur
diff érente. Le plus large est le contact de
sécurité. Les prises terre possèdent deux
contacts plus une mise à la terre servant de
sécurité. Si la prise du bloc d’alimentation ou
du cordon d’ali-mentation fourni ne correspond
pas à celles de votre installation électrique,
faites appel à un électricien pour eff ectuer le
changement de prise.
10. Installez le cordon d’alimentation de telle
façon que personne ne puisse marcher dessus
et qu’il soit protégé d’arêtes coupantes.
Assurez-vous que le cordon d’alimentation est
suffisamment protégé, notamment au niveau
de sa prise électrique et de l’endroit où il est
relié à l’appareil; cela est également valable
pour une éventuelle rallonge électrique.
11. Utilisez exclusivement des accessoires et des
appareils supplémentaires recommandés par le
fabricant.
12. Utilisez exclusivement des chariots, des
diables, des présentoirs, des pieds et des
surfaces de travail recommandés par le fabricant
ou livrés avec le produit. Déplacez
précautionneusement tout chariot ou diable
chargé pour éviter d’éventuelles blessures en cas
de chute.
13. Débranchez l’appareil de la tension secteur
en cas d’orage ou si l’appareil reste inutilisé
pendant une longue période de temps.
14. Les travaux d’entretien de l’appareil doivent
être eff ectués uniquement par du personnel
qualifié. Aucun entretien n’est nécessaire sauf si
l’appareil est endommagé de quelque façon que
ce soit (dommages sur le cordon d’alimentation
ou la prise par exemple), si un liquide ou un
objet a pénétré à l’intérieur du châssis, si
l’appareil a été exposé à la pluie ou à l’humidité,
s’il ne fonctionne pas correctement ou à la suite
d’une chute.
15. N'exposez pas cet équipement au fait de
tomber goutte à goutte ou au fait d'éclabousser
et garantissez qu'aucun objet rempli des liquides,
comme les vases, n'est placé sur l'équipement.
16. Pour complètement débrancher cet
équipement de la conduite principale de courant
alternatif, débranchez la corde de pouvoir du
disjoncteur de conduite principale.
17. Cette unité est correspondue avec une corde
de pouvoir de 3 fils. Pour les raisons de sécurité,
L'AVANCE DE TERRE NE DEVRAIT ÊTRE
DÉBRANCHÉE DANS AUCUNE CIRCONSTANCE.
Le point d’exclamation dans un triangle
équilatéral a pour but d’alerter l’untilisateur
de la présence d’instructions importantes
concernant le fonctionnement et la
maintenance, dans la documentation qui
accompagne l’appariel.
Page 8
DC1048 Integrated Audio Management
Operator’s Manual
Thanks
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x
THIS WAY UP
Stourpo rt on Seve rn
Thank you for choosing a DC1048 for your application. Please spend a little time
reading through this manual, so that you obtain the best possible performance
from the unit.
All XTA products are carefully designed and engineered for cutting-edge
performance and world-class reliability. If you would like further information
about this or any other XTA product, please contact us.
We look forward to hearing from you in the near future.
Unpacking the unit
After unpacking, please check the unit carefully for any damage. If any is found,
immediately notify the carrier concerned - you, the consignee, must instigate any
claim. Please retain all packaging in case of future re-shipment.
The Desi gn House
Vale Busin ess Park
Worcester Road
Worcs.
England
Tel +44 (0) 1 299 8799 77
Fax +44( 0) 1299 8799969
Operator’s Manual
DC1048 Integrated Audio Management
Page 9
Introduction
Your DC1048 is a 4 input, 8 output audio processor, offering a selection of flexible
features to configure and manage an installation audio system. These include
matrix mixing of all inputs to outputs, input equalisation, output equalisation,
output (speaker) crossovers, delays and speaker protection (limiters).
Input signal path:
Output signal path:
Each of the 4 inputs enters the mixing matrix and
is routed to any of the 8 outputs as required
through the adjustment of the relative levels:
Computer and network connections for remote
control are catered for through a front panel USB
socket and an RS485 multi-drop bus connector on
the rear panel.
The simple user interface on the unit helps quickly
set up the various basic comms options to facilitate
connection to a computer for full, secure access to
all the features and easy programming through
ICORE, the software package designed for use
with this and many more products.
Configurations can be saved within the unit for recall as required, either directly
from the front panel, or via the computer. A real time clock is also built into the
device so automated recalls at specific times/days can be set-up for complete setand-forget operation.
A GPIO port allows simple remote preset recall, as well as connection to the
WP-1048 touch remote wall panel.
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DC1048 Integrated Audio Management
Operator’s Manual
Installation
Electrical Considerations
The DC1048 has been manufactured to comply with your local power supply
requirements but, before connecting the unit to the supply, ensure that the
voltage (printed on the rear panel) is correct, and that a mains fuse of the correct
type and rating has been fitted.
If the unit’s GPIO terminals are not terminated with screened cables fast rising
transients from extreme RF fields, or ESD strikes over 4000 volts may cause
disturbance to the status LEDs on the unit. This will not affect audio performance
and will be corrected on the next power up cycle.
Make sure power outlets conform to the power requirements listed on
the back of the unit. Damage caused by connecting to incorrect AC
voltage is not covered by the warranty.
Mechanical Considerations
To ensure that this equipment performs to specification, it should be mounted in
a suitable rack or enclosure.
When mounting the unit in a rack or enclosure, ensure that there is adequate
ventilation. The cooling fan sucks cool air in through the LHS and blows warm air
out of the RHS of the unit through the ventilating grills.
Take care when mounting other equipment in the same rack.
Please also refer to the maintenance section on page 56 of this manual.
Operator’s Manual
DC1048 Integrated Audio Management
Page 11
Operation
Read all documentation before operating your equipment and retain all
documentation for future reference.
Do not spill water or other liquids into or on the unit and do not operate the unit
while standing in liquid.
Do not block fan intake or operate the unit in an environment that could impede
the free flow of air around the unit.
If the unit is used in an extremely dusty or smoky environment, it should be
cleaned of any collected debris at regular intervals. (Please also refer to the
maintenance section on page 56 of this manual.)
Page 12
DC1048 Integrated Audio Management
Operator’s Manual
Front Panel Indicators
OUTPUTS
INTEGRATED AUDIO MANAGEMENT
678
3
4 5
2
1
tax
COMMS
GPI
QUICK ACCESS
SYSTEM
INPUTS
A B C D
CLIP
CLIP
-3
-3
-6
-6
-12
-12
-24
-24
DC1048
L+4
LIM
-6
-12
-24
1 2 3 4 5 6 7 8
PRESETS
OK
ICORE
1: “System” Menu Button
Press this button repeatedly to cycle through the general menu options concerned
with the general operation of the unit – see page 16 for list of options. Options
are changed with the UP/DOWN keys and confirmed with OK. Menu exits
automatically five (5) seconds after the last key is pressed.
2: “GPI” Menu Button
Press this button repeatedly to cycle through the menu options concerned with
the setting up any General Purpose Interface connected to the unit– see page 16
for list of options and more details. Options are changed with the UP/DOWN keys
and confirmed with OK. Menu exits automatically five (5) seconds after the last
key is pressed.
3: “Comms” Menu Button
Press this button repeatedly to cycle through the menu options concerned with
the remote control operation of the unit – see page 16 for list of options. Options
are changed with the UP/DOWN keys and confirmed with OK. Menu exits
automatically five (5) seconds after the last key is pressed.
4: Input Metering
The input meters read the level immediately post analogue to digital converter
(ADC) and pre-signal processing (DSP). As such, they will indicate if the input
level is clipping the ADC before any processing has been applied. If the clip LED
is illuminated on any particular channel, reduce its level so that the –3dB LED
lights on peaks. If all four CLIP LEDs illuminate, this indicates DSP clipping –
check for excessive EQ filter boost on all channels.
5: LCD Status Display
By default, the LCD shows the current time and date, along with the name of the
last recalled preset. Brightness of this display is automatically reduced when the
unit is not being accessed after a preset time, adjustable under the “System”
menu, along with the contrast.
Operator’s Manual
DC1048 Integrated Audio Management
Page 13
6
: USB Connector
The front panel mounted USB connector is used for remote control and
configuration from a PC running ICORE, as well as firmware updates. The USB
connection is configured under the “Comms” menu – see page 17 for more
information about going on-line. For details about upgrading firmware, see the
section on page 43.
7: Output Metering
The output meters show the level relative to the limiter threshold. The yellow LED
on each channel illuminating when the limiter threshold is reached. The red LED
indicates 4dB of gain reduction on that channel.
8: Preset Selection Buttons
In default mode, the UP() and DOWN ()buttons will scroll through the list of
stored presets. Pressing OK will immediately load the selected preset. When in a
menu (having pressed a button on the left hand side of the panel) these buttons
will adjust the currently selected parameter, with “OK” setting it to the displayed
value and exiting the menu (after the 5 second preset delay).
Page 14
DC1048 Integrated Audio Management
Operator’s Manual
Rear Panel Controls, Connections and Indicators
t
a
x
BALANCED INPUTS
INSTALLATION AUDIO MANAGE MENT
415
90V-240V AC
50 - 60Hz 30W
RS485
GPIO PORT
9: +5V / 10: CHASSIS GND
11 - 12: ISOLATED GND
3 4 567
1 2
1-4: OUTPUT
5-8: INPUTS
WARNING: THIS EQUIPMENT MUST BE EARTHED.
DO NOT EXPOSE TO RAIN OR MOISTURE.
9
10
11 12
8
CAUTION! SHOCK HAZARD.
DO NOT REMOVE COVERS.
BALANCED OUTPUTS
7
8
5
6
3
4
DC1048
1
2
Serial No:
0000001
DC1048
MANUFACTURED IN
THE UK BY
2 3
1: Mains Power Inlet and Power Switch
The mains fuse is also located here, between the switch and the power socket –
only replace with the correct rated fuse.
2: RS485 Connection
To connect a network of DC1048 units, or to include this unit on a network of
other devices, use this connection. The pin-out of this connector is:
Pin 1: Data A (+)
Pin 2: Data B (-)
Pin 3: Shield/Ground
The procedure for setting up a remote network is explained in detail starting on
page 34 of this manual.
tax
ABCD
3: GPI Port
This port offers a set of input and output connections designed for use with the
WP-1048 touch remote, or for connection to other third party remote control
interfaces, to allow for closed contact preset recall.
4: Balanced Audio Outputs
The analogue outputs are wired as:
Pin 1: Signal Hot (+)
Pin 2: Signal Cold (-)
Pin 3: Shield/Ground
5: Balanced Audio Inputs
The analogue inputs are wired as:
Pin 1: Signal Hot(+)
Pin 2: Signal Cold (-)
Pin 3: Shield/Ground
Operator’s Manual
DC1048 Integrated Audio Management
Page 15
Menus
Overview
The DC1048 has been designed to be quick to set up and simple to operate. To
facilitate this, the options available for configuration on the front panel have been
deliberately minimized and are explained in detail below.
COMMS Menu
Mode:
Mode: Master
Mode:Mode:
Master Connect to USB on front
MasterMaster
Slave
Off
ID Number:
ID Number: 1
ID Number: ID Number:
RS Baud: 4800
RS Baud: 4800 –––– 15200k
RS Baud: 4800 RS Baud: 4800
GPI Menu
GPI:
GPI: Panel Mode
GPI:GPI:
Complx Mde
Simple Mde
Disabled
Mem. Offset = 0
Mem. Offset = 0 –––– 16
Mem. Offset = 0 Mem. Offset = 0
TX
TX Presets = No/Yes
TXTX
Slave Connect to RS485 on rear
SlaveSlave
Off Disable remote comms
OffOff
1 –––– 32
32 Set address for remote access
1 1
3232
15200k Baud rate for RS485 ONLY
15200k15200k
Panel Mode Connect to a WP-1048 touch panel
Panel ModePanel Mode
Complx Mde Binary coded input for up to 16 presets
Complx MdeComplx Mde
Simple Mde One wire per preset (4)
Simple MdeSimple Mde
Disabled Ignore GPI inputs
DisabledDisabled
16 Preset recalled is input + this number
1616
Presets = No/Yes Transmit a recall message on RS485
Presets = No/YesPresets = No/Yes
System Menu
Sys. Lock:
Sys. Lock: Full
Sys. Lock:Sys. Lock:
Menu
Off
On Delay: 0
On Delay: 0 –––– 60 secs
On Delay: 0 On Delay: 0
LCD Contrast: 0
LCD Contrast: 0 –––– 10
LCD Contrast: 0 LCD Contrast: 0
LED Timeout: 5
LED Timeout: 5 –––– 90 secs
LED Timeout: 5 LED Timeout: 5
Page 16
Full All front panel functions disabled
FullFull
Menu Only preset recall allowed
MenuMenu
Off All access allowed
OffOff
60 secs Time before audio output on power up
60 secs60 secs
10 Adjust LCD contrast
1010
90 secs Time for backlight and buttons to stay on
90 secs90 secs
DC1048 Integrated Audio Management
Operator’s Manual
Remote Control and Initial Set-up
RS Baud: 4800 – 15200k
Connect to USB on front
Not relevant for USB connection
Overview
As the DC1048 is designed for installation applications, the control and set-up of
all audio related parameters is performed under remote control using a PC or
laptop running ICORE. Please ensure you have downloaded the latest release
of the software from our website, xta.co.uk, and have it installed on the
computer.
There are various methods of connecting the unit to a computer. The simplest is
via the USB socket on the front panel of the unit. Units may be cascaded to form
a network using the RS485 connections on their rear panels. The first unit will
relay information from the USB to the RS485 if required or, if the first unit cannot
be located near the computer, a direct RS485 connection can be made to all
units, using a suitable converter.
These three scenarios are explored in more detail in the following pages.
Direct USB Connection
Using a standard USB cable, a serial link can be established to any individual unit.
This connection is also used for upgrading the unit’s firmware which cannot be
done via an RS485 connection. Attempting to do so may cause your unit to
function incorrectly and result in it having to be returned to the factory!
For more information about upgrading firmware, please see the section on page
43 of this manual.
Laptop or desktop PC
COMMS Menu
Mode: Master
ID Number: 1 – 32
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Set address for remote access
INPUTS
COMMS
GPI
QUICK ACCESS
SYSTEM
A B C D
CLIP
CLIP
-3
-3
-6
-6
-12
-12
-24
-24
INTEGRATED AUDIO MANAGEMENT
DC1048
running
software monitors and
controls unit.
Baud rate must be set
to 115k!
OUTPUTS
L+4
LIM
-6
-12
-24
1 2 3 4 5 6 7 8
iCORE
PRESETS
ICORE
OK
Operator’s Manual
DC1048 Integrated Audio Management
Page 17
Set the options in the unit’s COMMS menu according to the diagram, that is
Master, ID 1.
Baud rate in the COMMS menu only affects the RS485 network, and the USB
comms speed is fixed at 115200 (or 115k) so if using USB connection make sure
baud rate at the PC is set to 115200.
The first time the USB cable is plugged into the PC, Windows will recognize the
connection of new external hardware (a USB-Serial device) and prompt for device
driver to be installed.
This may be obtained from our website, or directly from the Internet at this
address:
http://www.ftdichip.com/Drivers/VCP.htm
Choose the virtual COM port (VCP) driver as appropriate to your operating
system.
Note that, due to the nature of the USB protocol and the “hot swapping” nature of
the system, if the unit is not powered up and plugged into the PC, the COM port
connection will not be available.
Please confirm that the connection is made and the unit is on before continuing.
Page 18
DC1048 Integrated Audio Management
Operator’s Manual
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