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Audio Engine Reference Manual
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Revision 3.0
Aug 2009
Logitek Electronic Systems, Inc.
5622 Edgemoor Drive
Houston, Texas 77081
USA
Tel +1-713-664-4470
Fax +1-713-664-4479
Email support@logitekaudio.com
Web www.logitekaudio.com
Contents © 2009 Logitek Electronic Systems, Inc
Notice
Every effort has been made to supply complete and accurate information. However, Logitek Electronic Systems, Inc. assumes no
responsibility for its use, nor any infringement of patents or other rights of third parties, which would result.
Worldwide rights reserved. Except for your own personal use, no part of this publication may be stored in a retrieval system,
transmitted or reproduced in any way, including but not limited to photocopy, photograph, magnetic or other record, without the
prior agreement and written permission of Logitek Electronic Systems, Inc.
Logitek is a trademark of Logitek Electronic Systems, Inc.
All other trademarks acknowledged.
All specifications are subject to change without notice.
Document Revisions
Date Revision Author Notes
August 2009 3.0 Ben Hietbrink First release of Audio Engine v3.x Reference Manual
Logitek Audio Engine Reference Manual
1
Introduction
Contents
1 Introduction ........................................................................................................................... 4
About this Manual ............................................................................................................... 4
About the Audio Engine ...................................................................................................... 5
System Requirements .......................................................................................................... 6
2 Unpacking .............................................................................................................................. 7
Parts List ............................................................................................................................. 7
Unpacking .......................................................................................................................... 7
3 Physical Installation ............................................................................................................... 8
Installation .......................................................................................................................... 8
Cabling ............................................................................................................................... 8
4 System Components ............................................................................................................ 10
Power Supply Unit ............................................................................................................ 10
LCD Display ...................................................................................................................... 11
AE-C2 Controller Card ...................................................................................................... 12
AE-C6 Controller Card ...................................................................................................... 15
DSP Cards......................................................................................................................... 18
Audio Cards ...................................................................................................................... 18
NetA Fiber Network Card .................................................................................................. 19
5 Configuration ........................................................................................................................ 22
Audio Engine Configuration ............................................................................................... 22
6 Operation ............................................................................................................................. 23
Initial Power-Up ................................................................................................................ 23
Power Loss at Audio Engine .............................................................................................. 23
Power Supply Control Functions........................................................................................ 23
7 Maintenance ......................................................................................................................... 25
Warranty .......................................................................................................................... 25
Firmware Updates ............................................................................................................. 25
Component Replacement ................................................................................................. 26
Appendix A Release Notes ....................................................................................................... 28
Release Notes ................................................................................................................... 28
Appendix B Specifications ....................................................................................................... 36
Audio Engine Frame .......................................................................................................... 36
Audio Engine Cards ........................................................................................................... 36
Appendix C Pinout Data .......................................................................................................... 39
IO-4D ............................................................................................................................... 39
IO-8D ............................................................................................................................... 39
IO-20A ............................................................................................................................. 40
IO-24A ............................................................................................................................. 41
AE-C2 ............................................................................................................................... 42
AE-C6 ............................................................................................................................... 43
Surfaces ............................................................................................................................ 44
2
Logitek Audio Engine Reference Manual
Introduction
PCs ................................................................................................................................... 44
Logitek Audio Engine Reference Manual
3
Introduction
1 Introduction
About this Manual
This manual describes the installation and operation of the Logitek Audio Engine.
Intended Audience
This manual is aimed at Engineers and Technical Operators responsible for installing, configuring
and supporting a Logitek Console Router System.
In the context of a system installation, or to become familiar with the entire Logitek Console Router
System, the reader should also reference:
Surface Reference Manual for each surface you are installing
AEConfig Reference Manual
Supervisor Reference Manual
It is assumed the person responsible for installing and configuring Supervisor has a solid
understanding of Microsoft Windows desktop operating systems, or has ready access to IT support.
Manual Conventions
The following conventions are used in this manual:
This text indicates a menu choice to be made, with an arrow separating a multi-level selection,
eg Control Panel Users & Passwords. This can be a menu choice in a Logitek application, or
within Windows.
Indicates a “see-also” section in this manual, or another Logitek manual.
The exclamation symbol signifies an important note or critical information.
This text represents a command, script block example, instruction to
be typed, or directory path.
TIP: A useful tip from our knowledge base!
4
Logitek Audio Engine Reference Manual
Introduction
About the Audio Engine
The heart of Logitek Electronic Systems’ Digital Consoles is the Audio Engine. This is a digital
matrix with equal numbers of input and output channels ranging from 8x8 to 64x64 stereo AES, 6x6
to 48x48 stereo Analog or a combination thereof in one Engine. This matrix is capable of mixing,
routing, creating mix-minuses and all other traditional functions of consoles. Multiple Audio
Engines can be networked together to expand the matrix.
The Audio Engine provides a seamless integration of digital and analog sources or destinations. The
Audio Engine can accept digital and/or analog Inputs and feed digital and/or analog Outputs.
Logitek consoles retain much of the look and feel of traditional on-air boards, adding input routing,
additional mix-busses, dynamics, EQ control and more. Current model surfaces include the
Remora, Mosaic and Artisan. Audio Engine v3.x also supports the legacy ROC and Numix surfaces.
In addition, a number of different Utility Panels are available, such as the RTE-3 router, COM-12
intercom and a range of headphone panels.
These Surfaces are in fact a remote-control for the Audio Engine, which can also be directly
controlled by a personal computer using the Logitek vTools virtual software.
The Audio Engine can be setup with a series of cards that can be configured to suit the user’s
requirements. These cards include:
IO-8D Digital Audio Card (8 Inputs; 8 Outputs)
IO-24A Analog Audio Card (12 Inputs; 12 Outputs)
Net-A Network Card (shares I/O between multiple Engines)
LoneSharc DSP Card (Controls DSP – Single SHARC chip)
SharcLite DSP Card (Controls DSP – Seven SHARC chips, with input metering & delay)
SharcAttack DSP Card (As with SharcLite and adds EQ & Dynamics)
AE-C2 Communications Controller Card
AE-C6 Communications Controller Card
AE-PS Power Supply
Logitek Audio Engine Reference Manual
5
Console Surfaces
AE1
Supervisor PC
Main
Surfaces Audio Engines Supervisor PCs
Control Panels
Console Surfaces
AE2
Control Panels
Fibre Audio Network
Supervisor PC
Backup (optional)
Serial Comms Serial Comms TCP/IP
Software vTools
Software vTools
Software vTools
Software vTools
Surfaces are remote
control panels for
Audio Engine
Audio Engines
process Audio and
GPI control events
Supervisor executes
scripts and provides
gateway to IP world
Client PCs
Client PCs interact
with Audio Engines
via Supervisor
Software vTools
Software vTools
Serial
TCP/IP
Fibre
Introduction
System Requirements
The Audio Engine is designed to be mounted inside a standard 19” rack.
System Architecture
The following diagram illustrates the Logitek system architecture.
Figure 1 - Logitek System Architecture
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Logitek Audio Engine Reference Manual
Unpacking
2 Unpacking
This section details what you should do when unpacking your newly arrived Audio Engine.
Parts List
The exact list of parts received will vary depending on your order, but should generally include:
1x fully assembled Audio Engine frame, containing cards and Power Supply/Supplies as
ordered.
1x external fan (for installation at the rear of the Audio Engine – instructions for installation
are included).
You will receive a parts list with the system that is specific to the Engine and cards on your order.
Unpacking
Carefully unpack the cartons whilst looking for any signs of shipping damage. You may wish to save
the shipping cartons until the operation of the system is verified.
Report any damage to the shipping carrier immediately. Verify that the contents of each box match
the packing list and report any discrepancies immediately to Logitek in writing.
Contacting Logitek
In the event of a shipping problem, you can contact Logitek Electronic Systems in several ways:
U.S. Mail Logitek Electronic Systems, Inc.
5622 Edgemoor Drive
Houston, Texas 77081
USA
Telephone 877-231-5870
+1-713-664-4470 (outside U.S. and Canada)
Fax +1-713-664-4479
Email support@logitekaudio.com
Website www.logitekaudio.com
Logitek Audio Engine Reference Manual
7
Physical Installation
3 Physical Installation
This chapter covers basic installation and cabling information, and details some cabling examples.
As preferences and techniques for installation vary widely, this information should primarily be used
as a starting point for planning your install.
Installation
The Audio Engine is designed to be mounted in a standard 19” rack, and occupies seven rack units.
The Audio Engine has a minimum module/card complement of one Power Supply, one
Communications Controller and one Audio Card (either analog or digital). The minimum
configuration can be expanded by a second Power Supply, DSP Cards, and up to eight Audio
Cards in any combination of digital, analog or network cards.
The Communications Controller provides the connection from the Engine to Console Surfaces,
multiple ancillary Utility Panels, and up to two computers for control and configuration.
The Audio Engine should be mounted in a clean, dry and well-ventilated area. Take care that the
small ventilation fan on the upper rear corner of the Audio Engine housing is free from obstructions.
The fan is shipped un-mounted for transit and must be installed before the engine is used. There is
a separate mains inlet for each power supply slot on the rear panel.
The power cords should be connected to a properly grounded outlet with the correct voltage
present. After installation replace the front cover on the Audio Engine to protect the wiring and
controls from tampering.
Cabling
All cables to the Audio Engine enter at the rear of the cabinet, route through the bottom of the
assembly and then attach to the appropriate card in the Engine.
Audio Cable
Be sure to use properly rated digital cable for digital audio connections. For twisted pair, this is
normally 110 ohm low capacitance cable such as Belden 1800A or Gepco 5524EZ.
These cable types are also excellent for analog audio so using digital cable for all audio connections
would be an acceptable and wise choice, negating the need to order separate types of cable.
For a neater installation, a multi-pair cable may be preferred. CAT5 cable is a popular alternative,
due to its high availability and low cost. The impedance range of CAT5 cable fits entirely within the
range allowed by the AES/EBU specification. The tightly matched wire resistance also makes CAT5
an excellent analog cable.
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Logitek Audio Engine Reference Manual
Physical Installation
For installations where an intense AM RF field is present, shielded CAT5 cable may also be used.
Coaxial 75-ohm cable may also be used for digital audio. Connection to devices, which do not have
coaxial connectors, will require use of an impedance matching balun at the device. Be sure to set
the impedance jumpers on the Digital I/O cards to 75-ohms if such cables are used.
Data Cable
Recommended cable for the Control Surface data is CAT5 cable. The maximum length cable for
Control Surface connections is 1000 feet (300 meters). Shielded cable can also be used if there is a
risk of heavy interference to the signals, however this is normally not required.
See Appendix C for pinouts of all cards.
Pre Assembled Cables
Logitek offers pre-made cable assemblies to M-66 block, Krone block, XLR connectors, BNC
connectors, or bare ends.
Logitek Audio Engine Reference Manual
9
System Components
4 System Components
Power Supply Unit
Newer engines contain switching power supplies. These supplies do
not have a fuse under the front panel handles. Switching supplies
automatically adjust to 110 or 220-volt mains power and have no
user replaceable fuse.
Engines prior to June 2003 contain linear power supplies. Linear
supplies have a fuse holder under the front panel handle unless
marked otherwise. These supplies are factory set for 110VAC power.
The unit can be set for 220VAC by changing the switch on the power
supply to the “220VAC” position. This switch is at the lower rear
corner of each power supply module. The 110 Volt position is toward
the bottom of the Engine and the 220-volt position is toward the top
of the Audio Engine. To change the switch, remove the power supply
by loosening the mounting screw in the lower right hand corner of the
module front panel.
If two power supplies are installed, both must be the same type, and the
voltage switch settings must be the same for both units.
When a single power supply is used it should occupy the lower position. When two supplies are
used they share the current demand. If a power supply is removed, the remaining supply carries the
full chassis load. The lower power inlet connects to the lower supply and the upper power inlet
connects to the upper supply.
Each supply has a red LED that lights when it is operating. There are controls on the power supply
that allow local setup and system tests. They are used in conjunction with the LCD display located
below the lower Power Supply position.
TIP: The use of an uninterruptible power supply (UPS) to power the Audio Engine is
highly recommended to preserve stable operation and to avoid audio interruptions.
Power consumption of the Audio Engine is approximately 110 watts. Size the UPS
according to the length of time needed to protect against outage.
See Chapter 7 for information on changing fuses in a linear power supply.
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Logitek Audio Engine Reference Manual
System Components
LCD Display
The Audio Engine has an LCD screen below the lower Power Supply.
The LCD screen displays such information as the config file loaded on the Engine, the Audio Engine
number (useful with multiple Engine configurations), and the current sampling rate. In addition, the
display shows the type of reset that the Engine last had. This will be Quick, Soft or Full.
AE-C2 Controller
The LCD top line displays:
RX= followed by 1, 2, 3 or 4 as data is received from ports
32, 44 or 48 indicating the sample rate
The last type of reset (Quick in this example)
The LCD bottom line displays:
The configuration file name (first 14 chars)
The Audio Engine number (far right)
AE-C6 Controller
The LCD top line displays:
AE-C6 firmware version (v3.71 in this example)
32, 44 or 48 indicating the sample rate
Lk if external sync is present (not present in this example)
The last type of reset (Full in this example)
The LCD bottom line displays:
The configuration file name (first 14 chars)
The Audio Engine number (far right)
The AE-C6 Controller has individual TX & RX LEDs on each port.
Logitek Audio Engine Reference Manual
11
System Components
AE-C2 Controller Card
Ports 1, 2 and 3 – RS-485 Serial Communications (Control Surfaces)
Control Surface serial communications connections are made at the connectors Port 1, Port 2, or
Port 3 on the AE-C2 Communications Controller. Attach the control cable using a DB9M
connector using the same pinout as at the Control Surface.
Ports 1 to 3 are RS-485, operating at 38.4Kbps, 8 data bits, 1 stop bit and even parity.
See Appendix C for connector pinouts.
Port 3 – Surface Cue Audio Requirements
Note that Port 3 does not have connections for digital cue audio to return to the Control Surface. If
this port is used for a Control Surface, external wiring is required for cue audio.
See Appendix C for connector pinouts and a Port 3 Cue Audio wiring diagram.
Port 4 – RS-232 Serial Communications (PC/Supervisor)
Port 4 is for connection to a PC for uploading of configuration data, remote control and monitoring.
Port 4 requires a DB9M connector.
Port 4 is RS-232 operating at 38.4Kbps, 8 data bits, 1 stop bit and even parity.
See Appendix C for connector pinouts.
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Logitek Audio Engine Reference Manual
System Components
GPI Inputs & Outputs
The AE-C2 Communications Controller provides 15 logic input connections along with 15 relay
closures for external device control. The first 12 relays are on a DB25 connector, the remaining
three on a DB37 connector along with logic inputs.
TIP: The AE-C2 uses mechanical relays. Exceeding the maximum current will cause
these relays to fail. If connecting the Audio Engine to an incandescent on-air light,
always use an outboard relay to avoid exceeding 500 milliamps.
See Appendix C for connector pinouts.
Audio Engine External Sync
The Audio Engine may be synchronized to an external sample clock, which is connected to the
External Sync port. The external clock is an alternative to the internally set sample rate. For
example, this would be used if all devices in a facility were to be tied to the same sample-rate and
clock.
When networking Audio Engines using the NetA card, External Sync is highly
recommended.
The only acceptable sync source is AES Silence. The sync source can be the sync output of an
Audio Engine or a master rate clock (preferred) fed into an AES distribution amplifier.
The Audio Engine automatically matches any sample rate of digital inputs from approximately 25
KHz to over 50 KHz. The outputs can be set to sample rates of 32 KHz, 44.1 KHz, and 48 KHz or
locked to an external clock source (at one of these frequencies).
See Appendix C for connector pinouts.
Audio Engine Reset Button
The Reset button restarts or reboots the Audio Engine using the current configuration and settings.
Reboot time is less than two seconds. The Reset button is also used in conjunction with other
functions, which are activated from the AE-PS Power Supply control panel.
See Chapter 6 for further details on Engine Resets
Audio Engine “Open” Control Protocol
The control protocol of the Audio Engine is “open”. If a user wishes to write software control or to
interface other devices through software control, contact Logitek Electronic Systems for a copy of
the serial protocol.
Logitek Audio Engine Reference Manual
13
System Components
Communication verification
You can verify communications between the Audio Engine and Control Surface, by noting the LCD
screen on the Audio Engine. The LCD screen should display Rx= followed by a digit 1 to 4. This
digit indicates receipt of data on the specified Control Surface port.
When the Audio Engine receives information from the Supervisor PC, Rx=4 will be displayed.
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Logitek Audio Engine Reference Manual
System Components
AE-C6 Controller Card
Ports 1 to 6 - RS-485 Serial Communications (Control Surfaces)
Control Surface serial communications connections are made at the RJ-45 connectors Port 1
through Port 6 on the AE-C6 Communications Controller. Attach the control cable using a
standard RJ-45 CAT5 data cable to the Control Surface. Mosaic and Artisan surfaces accept the
other end of a standard CAT5 data cable without any modification being necessary.
Console/Control Surfaces may only be connected to Ports 1, 2 and 3 as defined in AEConfig. Ports
4, 5 and 6 may only be used by Utility Panels.
Utility Panels may be used on Ports 1-3 if they have not been defined in AEConfig as a Console.
Ports 1 to 6 are RS-485, operating at 38.4Kbps, 8 data bits, 1 stop bit and even parity.
See Appendix C for connector pinouts.
Ports 7 & 8 – RS-232/RS-485 Serial Communications (PC/Supervisor)
Ports 7 and 8 are for connection to a PC for uploading of configuration data, remote control and
monitoring. Ports 7 and 8 require an RJ-45M crimp connector, and generally this cable will need to
be custom made, or an RJ45 to DB9 adaptor made for the PC end.
Ports 7 & 8 will switch automatically between RS-485 and RS-232, operating at 38.4Kbps, 8 data
bits, 1 stop bit and even parity.
See Appendix C for connector pinouts.
GPI Inputs & Outputs
The AE-C6 Communications Controller provides 15 logic input connections along with 15 solidstate closures for external device control. The first 12 switch outputs are on a DB25 connector, the
remaining three on a DB37 connector along with logic inputs.
GPI outputs are driven by non-polarized, solid state switches, rated at 500ma at 50V AC/DC, with
surge to 2A. These solid state devices do not conduct at low voltage, so cannot switch an audio
input. However, they are suitable for most control signals, and avoid problems with relay contacts
Logitek Audio Engine Reference Manual
15
System Components
being damaged by surges. Caution should be exercised to avoid overloading the switches. If driving
a high current device, we recommend driving an external relay or switch.
The GPI inputs are a current source to +5VDC that is pulled to ground to activate. This makes it
suitable for control by push-button, relay or open collector. A diode protects against static and over
voltage. See the wiring diagram for polarity information if using non-standard activation methods.
TIP: The solid state switches used in the GPI inputs and outputs are polarity sensitive. If
you are having difficulty getting your GPIs to work, the first troubleshooting step
should be to check your polarity.
See Appendix C for connector pinouts.
Audio Engine External Sync
The Audio Engine may be synchronized to an external sample clock, which is connected to the
External Sync port. The external clock is an alternative to the internally set sample rate. For
example, this would be used if all devices in a facility were to be tied to the same sample-rate and
clock.
When networking Audio Engines using the NetA card, External Sync is highly
recommended.
The only acceptable sync source is AES Silence. The sync source can be the sync output of an
Audio Engine or a master rate clock (preferred) fed into an AES distribution amplifier.
The Audio Engine automatically matches any sample rate of digital inputs from approximately 25
KHz to over 50 KHz. The outputs can be set to sample rates of 32 KHz, 44.1 KHz, and 48 KHz or
locked to an external clock source (at one of these frequencies).
See Appendix C for connector pinouts.
Audio Engine Reset Button
The Reset button restarts or reboots the Audio Engine using the current configuration and settings.
Reboot time is less than two seconds. The Reset button is also used in conjunction with other
functions, which are activated from the AE-PS Power Supply control panel.
See Chapter 6 for further details on Engine Resets
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Logitek Audio Engine Reference Manual
System Components
Audio Engine “Open” Control Protocol
The control protocol of the Audio Engine is “open”. If a user wishes to write software control or to
interface other devices through software control, contact Logitek Electronic Systems for a copy of
the serial protocol.
Communication verification
You can verify communications between the Audio Engine and Control Surface, by noting the
LEDs on the COM ports of the AE-C6 card. When viewing each COM port on the AE-C6 card
mounted in the Audio Engine, the top LED is Transmit and the bottom LED is receive.
Logitek Audio Engine Reference Manual
17
System Components
DSP Cards
The DSP cards can be any combination of the Lone SHARC, SHARC Lite or SHARC Attack cards. All
are based on the Analog Devices SHARC 32-bit DSP chip, which is a powerful processor well
suited to the heavy processing demands of manipulating digital audio.
The Lone SHARC features a single DSP chip and is adequate for basic configurations.
The SHARC Lite card has additional DSP chips and DRAM memory to allow features such as
profanity delay and input metering.
The SHARC Attack card builds on the SHARC Lite to add EQ and dynamics processing.
Console configurations with more mixing and processing activity will require additional DSP power.
Contact your dealer or Logitek Electronic Systems for assistance in determining DSP requirements.
The Audio Engine can accept one or two DSP cards. The left-hand DSP card (Slot J) is allocated to
the Port 1 surface, and the right-hand DSP card (Slot K) is allocated to Port 2 & 3 surfaces (if
present). For an Audio Engine running the Artisan surface, two SHARC Attack cards are required.
Audio Cards
The Audio Engine will accept from one to eight audio cards, which can be either analog or digital.
IO24A Analog Card
The IO24A has a capability of 12 mono inputs and outputs (or 6 channels of stereo) on three
DB25F connectors (one for inputs, one for outputs and one split between inputs and outputs).
See Appendix C for connector pinouts.
IO8D Digital Card
The IO8D has a capability of 8 digital stereo inputs and outputs on two DB25F connectors (one for
inputs and one for outputs).
See Appendix C for connector pinouts.
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Logitek Audio Engine Reference Manual
System Components
NetA Fiber Network Card
The NetA network card allows the Fiber-Optic networking of up to 25 Audio Engines. The network
circulates up to 255 channels for AE-C2 cards, and up to 504 channels for AE-C6 cards, of 24-bit
TDM digital audio, through all Audio Engines. The Fiber-Optic ports of the NetA consist of Dual 1GB Optical Audio Network Ports on each NetA card.
The AE-C2 card supports NetA info for up to 255 channels. No network
channel should ever be set above 255 on Audio Engines with an AE-C2 card.
The AE-C6 card supports NetA info for up to 504 channels. No network
channel should ever be set above 504 on Audio Engines with an AE-C2 card.
Connections are made using a standard 3-Meter Fiber-Optic 2F RIB cable with MTRJ/MTRJ
connectors (Siecor or equivalent dual mode). These leads can also be ordered in other lengths to
suit split equipment rooms or rack bays.
Some models of the NetA card have a DB9 connector marked External Sync.
This connector is not functional and as such should never have anything
connected to it.
A block diagram of the Fiber-Optic hookup and External Sync connections of four Audio Engines
using NetA cards is shown below in Figure 2.
Logitek Audio Engine Reference Manual
19
Audio Engine 1 - AE1
Net-A
Master
RX
Lock
RX
Lock
Sharc
Attack
Audio Engine 2 - AE2
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
Net-A
Master
RX
Lock
RX
Lock
Sharc
Attack
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
GPISYNC GPI
Res
et
AE-C6
Pt
1
Pt
2
Pt
3
Pt
4
Pt
5
Pt
6
Pt
7
Pt
8
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
GPISYNC GPI
Res
et
AE-C6
Pt
1
Pt
2
Pt
3
Pt
4
Pt
5
Pt
6
Pt
7
Pt
8
Sharc
Lite
Sharc
Lite
IO8D
DIGITAL INDIGITAL OUT
IO8D
DIGITAL INDIGITAL OUT
IO8D
DIGITAL INDIGITAL OUT
IO8D
DIGITAL INDIGITAL OUT
Audio Engine 3 – AE3
Net-A
Master
RX
Lock
RX
Lock
Sharc
Attack
Audio Engine 4 – AE4
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
Net-A
Master
RX
Lock
RX
Lock
Sharc
Attack
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
GPISYNC GPI
Res
et
AE-C6
Pt
1
Pt
2
Pt
3
Pt
4
Pt
5
Pt
6
Pt
7
Pt
8
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
IO24A
ANALOG INANALOG OUTANALOG IN/OUT
GPISYNC GPI
Res
et
AE-C6
Pt
1
Pt
2
Pt
3
Pt
4
Pt
5
Pt
6
Pt
7
Pt
8
Sharc
Lite
Sharc
Lite
IO8D
DIGITAL INDIGITAL OUT
IO8D
DIGITAL INDIGITAL OUT
IO8D
DIGITAL INDIGITAL OUT
IO8D
DIGITAL INDIGITAL OUT
System Components
Figure 2 - NetA Connection Diagram
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Logitek Audio Engine Reference Manual
System Components
When connecting Fiber Cables between the Audio Engines, it is recommended that AE1 top
connects to AE2 bottom, AE2 top connects to AE3 bottom and so on, with the highest numbered
Audio Engine top connecting back to AE1 bottom. This is shown in Figure 2 above. The same
principle applies with any combination from 2 up to 32 Audio Engines. This method provides a
Fiber ring and means that if one link in the chain is broken, Network Audio remains intact.
The Audio Engine requires that the NetA network card be placed in Slot H. An additional NetA
card can be loaded into slot G, the slot immediately to the left (up to two NetA cards in total).
Attempting to use another slot will result in an error message when using the configuration software.
A NetA card in Slot H is capable of supporting up to 80 transmit or receive
channels.
A NetA card in Slot G is limited to 16 transmit or receive channels.
Using NetA cards reduces the total number audio cards available in an Audio Engine.
The NetA card makes inputs and outputs on one engine look like local inputs on another engine.
This can greatly increase the number of inputs a mixer has access to. Logitek’s software packages
allow inter-engine communication to greatly extend the overall capability of the Audio Engine to a
new level of functionality, which otherwise could not be accomplished.
Logitek Audio Engine Reference Manual
21
Configuration
5 Configuration
Audio Engine Configuration
Configuration of the Control Surface port is accomplished in conjunction with configuration of the
Audio Engine. Configuration of the Audio Engine takes place using the Logitek Configuration
Software, AEConfig.
See the AEConfig Reference Manual for information on Audio Engine Configuration.
Figure 3 - AEConfig - Hardware Configuration Page
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Logitek Audio Engine Reference Manual
Operation
6 Operation
This chapter covers the basic operation of the Audio Engine.
Initial Power-Up
Depending on your distance from Logitek Electronic Systems’ factory, your Audio Engine may
have had a long journey to get to you. It’s always a good idea to re-seat all Engine cards prior to
powering on your engine.
Power Loss at Audio Engine
In the event of loss of power at the Audio Engine, upon the resumption of power, the Audio
Engine will return to the same state it was in prior to the power failure.
Due to the inrush of current at power up, some cards may experience difficulty starting. The AE-C6
card has been programmed to perform a Quick Reset 5 seconds after power up, to ensure all cards
boot correctly.
Power Supply Control Functions
The buttons on the Power Supply module and the Communications Controller card allow you to
perform a number of different resets. The notes below vary slightly depending on the exact module
of Power Supply and Communications Controller in use.
Quick Reset
Press the black Reset button on the AE-C2 or AE-C6 Communications Controller for a Quick Reset
of the Audio Engine. This causes the Audio Engine to reboot all cards, retaining current routes, gain
levels and other DSP settings. The message Quick will be displayed in the upper right corner of the
LCD display.
AE-C6 cards with firmware of v3.67 or above will automatically perform
another Quick Reset after 5 seconds. This is to assist the system cards to boot
up, particularly from a cold state.
TIP: A
Quick Reset
will give an audio interruption of a couple of seconds.
Logitek Audio Engine Reference Manual
23
Operation
Full Reset
A Full Reset is executed by pressing and holding down the red ACCEPT/FULL button on the Power
Supply and the black Reset button on the AE-C2 or AE-C6 Communications Controller card.
Release the black Reset button first and when the bottom line of the LCD screen displays the
message FULL, then release the red ACCEPT/FULL button.
If two power supplies are in place, either ACCEPT/FULL button may be used.
A Full Reset copies the default startup state of the last configuration saved, erasing any routing, level
or on/off information currently held in memory. The Audio Engine LCD display bottom line will
show the message Full. This function is required to activate the routing portion of a new
configuration file or to clear the current state memory if it becomes corrupted.
AE-C6 cards with firmware of v3.67 or above will automatically perform a
Quick Reset after 5 seconds. This is to assist the system cards to boot up,
particularly from a cold state.
TIP: As a
Full Reset
will reset to default routes, audio interruption will likely result.
No Config Reset
A No Config Reset is executed by pressing and holding down the green or black (depending on
Power Supply type) ESCAPE/IDLE button on the Power Supply and the black Reset button on the
AE-C2 or AE-C6 Communications Controller. Release the black Reset button first and when the
bottom line of the LCD screen displays the message Config Not Loaded, then release the green
or black ESCAPE/IDLE button.
If two supplies are in place, either ESCAPE/IDLE button may be used.
AE-C6 Cards with firmware of v3.67 to v3.74 will automatically perform
another Quick Reset after 5 seconds. When performing a No Config Reset,
you must continue to hold the ESCAPE/IDLE button until after the 2nd reset.
This was resolved from firmware v3.75.
With this reset the Audio Engine does not load a configuration file or set any switch, route, mode,
or gain positions. The sample rate is set to 48 KHz. This procedure may be necessary if a
configuration becomes corrupted in some way or if a card failure has occurred. If a configuration
will not load, using this function will, in most cases, allow the configuration to load. The Audio
Engine LCD display bottom line will show the message Config Not Loaded.
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Logitek Audio Engine Reference Manual
Maintenance
7 Maintenance
The Audio Engine uses multi-layer boards with surface mount technology. As such, the majority of
the engine and its cards are not user-serviceable. However, there are some basic tasks that can be
performed by suitably qualified technical personnel.
Warranty
Logitek Electronic Systems will honor the warranty of the system when conducting field
maintenance, provided:
Repairs or updates only relate to recommended and documented procedures
Care is taken and procedures are followed
Repairs are conducted by suitably trained or experienced service personnel
If you do not feel comfortable performing maintenance or repairs, please do not proceed. If you
would like advice prior to attempting a repair, please contact Logitek Electronic Systems or your
reseller.
Firmware Updates
Each card (with exceptions of the AE-PS Power Supply module and the Lone SHARC DSP) has a
firmware chip that is field upgradeable. Logitek Electronic Systems or your value-added reseller
may from time-to-time supply firmware updates to add new features or fix bugs.
See Appendix A for firmware revisions.
Each card type has specific firmware that only runs on that card. When fitting updated firmware
ROMs, take care to use the correct chip for that card. Firmware chips are labeled with the card
code, version and date.
A PLCC extractor tool is recommended for removing ROMs. Take care to not bend the pins of the
chip when removing it.
Logitek Audio Engine Reference Manual
25
Maintenance
Tools Required
Philips head screwdriver
PLCC Extractor tool
Procedure
It is not essential that the Audio Engine be completely powered off during a ROM upgrade,
however, the individual card will need to be removed before removing the chip.
1. If applicable, disconnect cabling from the required card.
2. Remove the two screws from the card.
3. Carefully remove the card from the Engine.
4. Use the PLCC extractor to carefully remove the existing ROM chip, whilst exercising caution
to ensure the pins are not bent.
5. Insert the new ROM chip by lining up the notch on the top-left of the chip and gently
pressing it in.
6. Replace the card in the Engine, and screw it back in.
Anti-static precautions should be taken when replacing firmware chips. In
addition, care should be taken with the module components to ensure no
damage is done.
Component Replacement
Card swap-out
If you need to swap a card with an on-site spare, you can simply unscrew the card, remove it, insert
the replacement and screw it in.
Cards are fully hot-swappable – generally a Quick Reset is recommended after swapping a card.
As the Engine config is stored within the AE-C2 or AE-C6 controller card, when
swapping an AE-C2 or AE-C6 card, the config will need to be reloaded before
normal operation can be resumed.
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Logitek Audio Engine Reference Manual
Maintenance
Changing Power Supply Fuse (Linear Power Supply)
To change the fuse in a Linear Power Supply, follow these steps:
1. Press down on the top edge of the fuse cap, and then pull it out. This will release the fuse
capsule.
2. Remove the fuse from the capsule.
3. Replace with a suitable fuse. (GMA type with a rating of 1.3 amps slow-blow for 110V or
0.63 amps slow-blow for 220V)
4. Re-insert the fuse capsule by pushing it back into the Power Supply until it snaps into place.
More Assistance
If you would like more assistance with maintenance and service, please contact Logitek Electronic
Systems or your reseller.
You can also post questions and review other users’ experiences at the Logitek support forum. See
www.logitekaudio.com and follow the links to Tech Support Forum.
Logitek Audio Engine Reference Manual
27
IO-8D
March 2007
3.20 Public release
Release Notes
Appendix A Release Notes
Release Notes
See the following Release Notes for a list of issues fixed.
Known Issues
There are no known issues.
Resolved Issues
There are no resolved issues.
Current Versions
Following are the currently released firmware versions of the Audio Engine.
Module Date Version Notes
IO-4D January 2002 2.3 Final release
IO-20A December 2001 2.3 Final release
IO-24A (Up to 2004) January 2003 3.00 Public release
IO-24A (2005 and beyond) January 2007 3.1 Public release
Net-A December 2005 3.41 Public release
LoneSHARC March 2005 3.24 Public release
Sharc Lite June 2007 3.68 Public release
Sharc Attack June 2007 3.68 Added support for C6 card to drive cue from right hand DSP.
Sharc Attack (Artisan) February 2009 1.38.8 Fixed missing center channel in Mix- from M1 and M2.
Fixed problem minusing mono sources from Mix- busses.
AE-C2 June 2006 3.26 Public release
AE-C6 April 2007 3.75 Remove test code that forced surface type = Artisan.
Update variables to support 5.1 routing from v3.93.
Disable 5 second auto reset when executing “Config Not
Loaded” reset.
AE-C6 (Artisan) July 2008 3.96.1 Raised Port1 & Port2 transmit buffer meter command cutoff, to
prevent meter command being dropped during normal
operation.
Installed switch on Device33 Bus3 to turn off A1 commands for
large surfaces, to provide additional protection from COM Port
overload.
This table was last updated in August 2009.
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Logitek Audio Engine Reference Manual
IO-24A
July 2004
3.0 Updated to support LG-382 board.
Release Notes
Release History
Following is the maintenance release history for this version of the Audio Engine. For the latest
updates and release notes, consult the Logitek Audio website.
IO-4D (LG-323)
Module Date Version Notes
IO-4D January 2002 2.3 Final release.
No Version 3 support. This Card will not work in v3.x Audio
Engines.
IO-8D (LG-333 – Up to 2004 LG-337 – 2005+)
Module Date Version Notes
IO-8D August 2002 3 First v3 release.
IO-8D October 2002 3 Added 44.1k and 32k support.
IO-8D December 2002 3 Fixed issue with L/R swap and even/odd channel swap.
IO-8D March 2006 3.20 Do not mute input on valid or confidence bits set.
IO-20A (LG-322)
Module Date Version Notes
IO-20A December 2001 2.3 Final release.
No Version 3 support. This Card will not work in v3.x Audio
Engines.
IO-24A (LG-332 - Up to 2004 / LG-382 – 2005+)
Module Date Version Notes
IO-24A August 2002 3.0 First v3 release.
IO-24A July 2003 3.0 Fixed on sample offset between left and right.
IO-24A November 2003 3.0 Setup CS3310 gains for INA327 receiver chips.
IO-24A January 2007 3.1 Added gain trim multiply to serial port data to adjust for OP
amp analog component imprecision.
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29
Net-A
December 2003
3.0 Verified 90 channels in and 90 channels out.
Release Notes
Net-A
Module Date Version Notes
Net-A August 2002 3.0 First v3 release.
Net-A September 2002 3.0 Modified for LG-334C PCB.
Net-A November 2002 3.0 Added dual loop support.
Improvements to block handling.
Net-A March 2004 3.0 Minor bug fixes.
Simplified link failure switching system.
Net-A July 2004 3.0 Fixed bug where route data background update only processed
the first channel.
Net-A December 2004 3.3 Fixed bug where fiber didn’t always restart after removing and
replacing the fiber cable.
Fixed bug where card didn’t start (blinking blue LED) after
engine reset.
Net-A December 2005 3.4 Used MAC receive start-of-frame signal to find the first audio
time slot.
Net-A December 2005 3.41 Fixed a bug in the new packet sync system.
LoneSHARC (LG-324)
Module Date Version Notes
LoneSHARC August 2002 3.01 First v3 release.
LoneSHARC November 2002 3.01 Added Aux4-Aux8 support.
LoneSHARC February 2003 3.01 Fixed cue serial port startup problem.
Made split phones only active when a fader is in cue.
LoneSHARC June 2003 3.01 Added Route20 with mixer and mono functions.
LoneSHARC July 2003 3.01 Fixed problem with that prevented independent bus switching
and pre-fader aux from working.
LoneSHARC November 2003 3.01 Fixed 6dB gain problem in MixerA mono section.
LoneSHARC September 2004 3.01 Added support for AE-C6 cue generation.
LoneSHARC March 2005 3.20 Added support for mix minus on Aux 5-8.
LoneSHARC July 2008 3.22 Added guard area after mix busses to prevent interference.
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Logitek Audio Engine Reference Manual
Release Notes
SHARC Attack/SHARC Lite
The SHARC Attack and SHARC Lite firmware versions are released simultaneously.
Module Date Version Notes
SHARC Attack June 2005 3.6 Modified Input Trim to cover -60 to +20 dB in 1 dB steps.
Moved Monitor Dim amount to Monitor Trim.
Moved Headphone Dim to Headphone Trim.
Implemented Mosaic Monitor Module gain controls for TB In
and Ext Cue.
Implemented Mosaic Monitor Mute and TB Mute buttons.
Added bus 4-7 switches to Talkback Mic In. This enabled
mixing Talkback into PGM, Aux1, Aux2 & Aux3 busses.
Added bus 4-7 switches to Cue Direct. This enabled mixing
Cue Dir into PGM, Aux1, Aux2 & Aux3 busses.
SHARC Attack August 2005 3.62 Added bus 8-9 switches to Talkback Mic In. This enables
mixing Talkback into Mix- outputs.
Made PLF in Monitor & Phones work like UK LS-DSP.
Deleted MonMeter bus 2 & 3 switches.
SHARC Attack November 2005 3.63 Added C1 meters to Cue and Aux1 - Aux5. This is used by
Mosaic and vScreen.
SHARC Attack January 2006 3.64 Fixed C1 meter bug that caused noise on the Aux6 output.
Added chan34 bus8 switch that forces the PGM meter to use
external Meter In as the source.
SHARC Attack July 2006 3.65 Fixed a problem preventing Port3 router meters (PGM &
Monitor) working.
Fixed a problem with Port1 router Meter6.
Fixed a problem that caused some fader input meters to be 1
segment low on the left channel.
Made bus2 on, switch to mono in left and right on all stereo
channels.
Changed DSP1-6 to boot one at a time rather than all together,
preventing lockup on reboot.
Made Flag4 sync signal handling more reliable. This assists
preventing lockups on start & run.
C93 capacitor changed to prevent lockups on some cards
during power on startup.
SHARC Attack November 2006 3.66 Made Cue Speaker mute when Mosaic Monitor Mute button is
pressed.
SHARC Attack/SHARC Lite March 2007 3.67 Supported new Mosaic surface type codes when switching
mixer sizes.
SHARC Attack/SHARC Lite June 2007 3.68 Added support for C6 card to cue drive from Right Hand DSP
slot (DSP6).
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31
AE-C2
July 2002
3.01 First v3 release.
Release Notes
SHARC Attack (Artisan version)
Module Date Version Notes
SHARC Attack (Artisan) February 2005 1.33 Fixed problem that caused audio shift on chan 29 & 30.
Improvements to buffer handling.
Added support for Lipsync Delay beyond Fader 8.
SHARC Attack (Artisan) March 2007 1.34 Fixed Input Trim interfering with Pan/Balance.
SHARC Attack (Artisan) March 2007 1.35 Fixed Trim problem for too small Fader/Aux level table.
SHARC Attack (Artisan) May 2007 1.36 Added support for Faders 31 & 32.
SHARC Attack (Artisan) May 2007 1.37 Fixed bug that caused Master2 to corrupt Master1 Mix-.
SHARC Attack (Artisan) December 2008 1.38.7 Fixed mono channels 6dB low in M1 stereo and mono mixes.
Sharc Attack (Artisan) February 2009 1.38.8 Fixed missing center channel in Mix- from M1 and M2.
Fixed problem minusing mono sources from Mix- busses.
AE-C2
Module Date Version Notes
Store effect and mix minus values in nvSRAM.
Restored support for 24 busses.
Hardware change required.
AE-C2 July 2002 3.01 Don’t send meter commands to ports 1, 2, 3 if transmit buffers
are almost full.
Timer based TDM backplane format.
AE-C2 August 2002 3.01 Updated mic unmuting to use new nvRAM format.
AE-C2 September 2002 3.03 Improvements to Read/Write driver (U44).
Hardware change required.
AE-C2 September 2002 3.04 Handles 110 outputs from NetA.
AE-C2 October 2002 3.05 Changed backplane timing so that IO8D don’t overlap
timeslots.
AE-C2 October 2002 3.06 Added support for 44.1k and 32k sampling rates.
Switched to UK meter lookup if required.
AE-C2 November 2002 3.07 Fixed error sending mix minus and feature word to DSP.
Fixed nvRAM storage problem for pan.
Network channel table added to database.
Updated tables to leave more space between IO8D cards.
Prevented channel mapper from executing if slot H does not
contain a NetA card.
AE-C2 December 2002 3.08 Fixed problem with failure to start if only one DSP specified.
ROC5 Note: Mix minus 1-5 commands will not be sent to a
ROC5 on startup because it starts at fader 6.
AE-C2 March 2003 3.09 Stopped host boot to SHARCAttack DSP.
Fixed problem that could cause dropped commands to surface.
Disabled soft reset temporarily.
Added slave fader cmd.
AE-C2 April 2003 3.10 Auto switches Port 3 between ROC5 and Remora addressing.
Enabled Soft Reset on unmapped Ports 1, 2 and 3.
Send Table1 and Table7 procedure calls from command
library.
Added new surface updating system to Ports 2 and 3.
Improvements to prevent lockup with blank screen at startup.
AE-C2 April 2003 3.11 Fixed possible jammed startup when nvSRAM is corrupted.
Added 0.5 sec delay between power up and DSP card reset to
allow for slower DSP card start.
Added soft reset when both Red and Green power supply
buttons are pressed.
AE-C2 May 2003 3.12 Removed procedure calls to prevent command processor
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Logitek Audio Engine Reference Manual
Release Notes
getting caught in a loop.
AE-C2 May 2003 3.13 Reactivated Soft Reset.
Fixed corruption of nvRAM on Soft Reset.
Fixed problem that could cause the command processor to
lockup occasionally.
Fixed incorrect lock state sent to Port2 Surface on startup and
reactivated procedure calls.
Fixed duplicate entries in slave fader table after a Soft Reset to
prevent slave fader table overrun.
Improvements to network resync procedure.
Fixed route table checker.
Send monitor meter input device to Port1.
AE-C2 June 2003 3.14 Fixed problem with B4 triggers in command library.
Fixed user stack leak in slave fader system.
Flush user stack and print error message if stack not empty at
start of main loop.
Reset engine up to 3 times if a DSP card does not respond.
Moved backplane access to external memory space.
Disable interrupts while reading or writing flash to prevent
corrupting nvSRAM.
AE-C2 June 2003 3.15 Reset engine once if DSP cards do not produce meter
commands after power up.
AE-C2 August 2003 3.16 Fixed problem with trigger on route in command library.
Fixed problem with incorrect Table2 sent to ports 1, 2 & 3
when no surface is assigned to Port 1.
Send engine init command to Supervisor after notifying
Supervisor that resync is complete.
AE-C2 September 2003 3.17 Put init command to Supervisor back in original place, as the
new way confused Supervisor.
Fixed DSP card reset command that had been incorrectly
restored after making a development copy.
Added support for Route-XY by sending entire Table1 to
unmapped serial ports.
AE-C2 September 2003 3.18 Added support for variable length commands from DSP to
support C2 and AE commands from SHARCAttack DSP.
Changed init so sample rate clock is always turned on quickly.
This prevents IO24A cards from jamming on boot up.
AE-C2 November 2003 3.19 Changed meter command delete on ports 1, 2 & 3 to occur
when less than 200 free bytes in buffer (was 240). This prevents
fader meter commands from being dropped.
International setting sent to DSP cards for UK mode.
Sent Port3 independent bus & PF fader control bits to right
hand DSP card during resync.
AE-C2 March 2004 3.21 Added support for Numix6 on Port3. Port3 Route2 crosspoint
deleted. Uses Std35.dsp.
Remapped Port3 when SHARCAttack is in Slot K. SHARCAttack
only supports Numix6 and Route3 on Port3.
Changed C1 meter average to use highest average per interval.
AE-C2 March 2004 3.22 Automatically switch slot timing when NetA card is in Slot G.
Fixed problem with forgetting NetA card is in Slot G.
Added high and low level alarms to meter reading processor.
Added Primary Supervisor status receive and response for
Backup Supervisor.
AE-C2 March 2004 3.23 Fixed problem with DevIdx table.
Added link to level alarm setup from command library.
AE-C2 September 2004 3.24 Mapped Route1 In to Surface 1 and 2 to support Talk Delay
change in SHARCAttack.
Logitek Audio Engine Reference Manual
33
Release Notes
AE-C2 January 2006 3.25 Added support for aux C1 commands.
Send UK settings to surfaces.
Changed so that external sync must be stable for 5 secs before
switching to external sync.
AE-C2 June 2006 3.26 Send system table info to Slot K DSP before sending mix minus
setting to Port3. This fixes the problem of Port3 mix minus not
working after a full or quick reset.
AE-C2 June 2006 3.27 Fixed problem that enables additions to Table1 copy sent to
surfaces after a soft reset. The prior Table1 was being sent to
surfaces.
AE-C2 November 2007 3.28 Stopped Device1 from echoing commands from Supervisor
back to Supervisor.
AE-C6
Module Date Version Notes
AE-C6 May 2004 3.53 First v3 release.
AE-C6 September 2004 3.54 Added delay parameters to nvSRAM state.
Fixed problems with transmit buffer on Port3.
Added Cue audio to Port3.
Fixed problems with using RTE-3 and RTE-XY on Ports 4-6.
AE-C6 September 2004 3.55 Added text message to Supervisor for External Sync On/Off.
Fixed problem with missing input meters on Port3.
Fixed non-functional Mix- on Port3.
AE-C6 November 2004 3.56 Changed intercharacter receive timeout on Slots G & H from 4
to 75 mSec to solve problem of AEConfig hanging on uploads
to Engine.
AE-C6 January 2005 3.57 Stop commands on unmapped ports being echoed back to
same port.
AE-C6 March 2005 3.58 Added support for 16-character names (Table9)
AE-C6 May 2005 3.59 Send delay times from Port2 Route1 & 2 to surface.
AE-C6 May 2005 3.60 Improvements to B4 command filter.
AE-C6 September 2005 3.61 Added delay status flags to busses 24-26.
AE-C6 October 2005 3.62 Send Independent Bus Switch, Aux Fader & International
Setting to Port1 & 2 at the end of the Port Settings command.
AE-C6 November 2005 3.63 Added support for C1 meter commands from SHARCAttack.
Modified address maps to send aux bus meters to surfaces.
AE-C6 January 2006 3.64 Modified External Sync to require 5 sec of stable sync before
switching to external.
Added unroute command (B4 with source device = 0000).
Made Soft Reset compare old & new device tables, unroute
deleted devices and install default route for new destination
devices.
If SHARCAttack meters stop, assume card lockup and reboot
DSP & perform Soft Reset.
AE-C6 February 2006 3.65 Fixed problem with SHARCAttack that prevented init
commands from executing.
Prevented Mosaic timer reset cmd (AE type 40) from causing
click in Audio.
AE-C6 April 2006 3.66 Special test version for Artisan.
AE-C6 June 2006 3.67 Fixed problem that scrambled additions to Table1 copy sent to
surfaces after a Soft Reset. Prior table was being sent to surface.
AE-C6 July 2006 3.68 Timing improvements..
Synchronize card reset to prevent DSP cards jamming.
Sent missing type 1 85 command (missing lock, au and bus
control) to Port2 surface.
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Logitek Audio Engine Reference Manual
AE-C6 Artisan
April 2006
3.66 Special test version for Artisan surface.
Release Notes
AE-C6 August 2006 3.69 Fixed bug in v3.68 that prevented Port4 transmitting.
AE-C6 August 2006 3.70 Automatically perform a second Quick Reset after power-up or
Quick Reset.
AE-C6 September 2006 3.71 Fixed problem in v3.68 that can cause LCD to erase bottom
row.
AE-C6 September 2006 3.72 Fixed bug that prevents Supervisor status setting.
Fixed bug that prevented C2 meter data being stored at the
correct device numbers.
Added flag to turn off C1 Aux Meters that flood Supervisor.
AE-C6 September 2006 3.73 Added the ability to autofade up to 10 channels at once.
AE-C6 January 2007 3.74 Increased the number of simultaneous autofades to 30.
AE-C6 June 2007 3.75 Removed test code that forced surface type = Artisan.
Updated variables to support 5.1 routing from v3.93.
Disable 5-second auto reset when executing “Config Not
Loaded” reset.
AE-C6 (Artisan)
Module Date Version Notes
AE-C6 Artisan June 2006 3.90 Address tables modified to supply 15 meter addresses to Port 1.
AE-C6 Artisan October 2006 3.91 Adjust address tables for Std3_Art.dsp.
Added 4 nvRAM words for AuxA & AuxB operation.
Added AE type 51 & 52 (dec) for aux state control.
Added AC type 1 & 2 for aux gain control.
AE-C6 Artisan December 2006 3.92 Adjusted address tables for Std3_art.dsp.
Reflected PFL commands between Left DSP to Right DSP.
Reflected CNG commands between Left DSP and Right DSP.
AE-C6 Artisan February 2007 3.93 Added 6 channel routing.
Autofade from v3.74 included.
AE-C6 Artisan March 2007 3.94 Fixed a bug that shifted the Network received channels by 1.
AE-C6 Artisan April 2007 3.95 Fixed a bug at PCSOL: system can hang if RouteLink table has
errors.
Added support for AuxA & AuxB faders to autofade command.
AE-C6 Artisan April 2007 3.96 Added support for Faders 31 & 32.
AE-C6 Artisan July 2008 3.96.1 Raised Port1 & Port2 transmit buffer meter command cutoff to
prevent meter command from being dropped during normal
operation.
Installed switch on device33 bus3 to turn off A1 commands for
large surfaces to provide additional protection from COM Port
overload.
Logitek Audio Engine Reference Manual
35
Release Notes
Appendix B Specifications
Audio Engine Frame
Dimensions 19” W x 15” D x 12.25” H (7RU) (482.5 mm x 382.5 mm x 310 mm)
Weight 44 lbs (Fully loaded) (20 kg)
Audio Engine Cards
IO-4D
Number of channels 4 stereo inputs & 4 stereo outputs
Digital input format AES/EBU and S/PDIF (selectable by channel)
Digital sampling rates 24 bit sample rate converters provided on all inputs.
Autodetect from 24 kHz to 96 kHz
Precision 24 bits input & output
Output 32k, 44.1k or 48k - AES/EBU or S/PDIF
Line input impedance 110 ohms, 2200 ohms or 75 ohms; jumper selectable, transformer isolated
Output impedance 110 ohms transformer isolated (75 ohms only on BNC card)
THD+N @ 20 dBFS; 24 bits 0.0002%
Frequency response +/- 0.1 dB (20 Hz to 20 kHz)
Dynamic range 140 dB
External connectors 2x DB25F
Other Subcode detection (audio/no audio, emphasis, copy protection, mono/stereo)
Subcode generation (control of all channel status bits)
IO-8D
Number of channels 8 stereo inputs & 8 stereo outputs
Digital input format AES/EBU and S/PDIF (selectable by channel)
Digital sampling rates 24 bit sample rate converters provided on all inputs.
Autodetect from 24 kHz to 96 kHz
Precision 24 bits input & output
Output 32k, 44.1k or 48k - AES/EBU or S/PDIF
Line input impedance 110 ohms, 2200 ohms or 75 ohms; jumper selectable, transformer isolated
Output impedance 110 ohms transformer isolated (75 ohms only on BNC card)
THD+N @ 20 dBFS; 24 bits 0.0002%
Frequency response +/- 0.1 dB (20 Hz to 20 kHz)
Dynamic range 140 dB
External connectors 2x DB25F
Other Subcode detection (audio/no audio, emphasis, copy protection, mono/stereo)
Subcode generation (control of all channel status bits)
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Logitek Audio Engine Reference Manual
Release Notes
IO-20A
Number of channels 6 stereo inputs & 6 stereo outputs (stereo pairs may be separated to 2 mono)
Balanced/unbalanced User selectable
Input line level @ -20 dBFS User definable via AEConfig. -20 to +8 dBu (no physical trim pots)
Line input impedance 50k ohms balanced or 25k ohms unbalanced; bridging
Conversions 24 bit with 128 x oversampling
Common mode rejection -90 dB @ 1 kHz
THD+N @ 20 dBFS; 0.012%
0 dB input Reference Level User definable, -10 to +8 (relative to -20 dBFS)
Frequency response +/- 0.2 dB (20 Hz to 20 kHZ)
Maximum output level +24 dB
Output impedance 40 ohms
Dynamic range 105 dB
External connectors 2 x DB25F
IO-24A
Number of channels 6 stereo inputs & 6 stereo outputs (stereo pairs may be separated to 2 mono)
Balanced/unbalanced User selectable
Input line level @ -20 dBFS User definable via AEConfig. -20 to +8 dBu (no physical trim pots)
Line input impedance 50k ohms balanced or 25k ohms unbalanced; bridging
Conversions 24 bit with 128 x oversampling
Common mode rejection -90 dB @ 1 kHz
THD+N @ 20 dBFS; 0.012%
0 dB input Reference Level User definable, -10 to +8 (relative to -20 dBFS)
Frequency response +/- 0.2 dB (20 Hz to 20 kHZ)
Maximum output level +24 dB
Output impedance 40 ohms
Dynamic range 105 dB
External connectors 3 x DB25F
Logitek Audio Engine Reference Manual
37
Release Notes
Net-A
Communication format Dual gigabit Ethernet rings, 2 paths between any 2 Engines
Number of Engines 32 Engines per ring
Connectors MT-RJ connectors with multi-mode fiber
Cable length Maximum of 600 feet (200 meters) of fiber between Engines
AE-C2
Inputs 15x +5 volt to ground
Outputs 15x Dry contact relays (50 volt, 500 milliamp)
Serial Ports 3x RS-485 (Port 1-3); 1x RS-232 (Port 4)
AE-C6
Inputs 15x +5 volt to ground
Outputs 15x Solid state switches (50 volt, 500 milliamp)
Serial Ports 6x RS-485 (Port 1-6); 2x RS-232/RS-485 (Port 7-8)
LoneSHARC
Processor type 1x Analog Devices SHARC™ DSP
RAM None
DSP Functions Audio Mixing; Mix Minus; Stereo to Mono Mix Down
SHARC Lite
Processor type 5x Analog Devices SHARC™ DSP and 32MB DRAM
RAM 32MB DRAM for internal profanity delay
DSP Functions Audio Mixing; Mix Minus; Stereo to Mono Mix Down;
Input Meters; Profanity Delay
SHARC Attack
Processor type 5x Analog Devices SHARC™ DSP and 32MB DRAM
RAM 32MB DRAM for internal profanity delay
DSP Functions Audio Mixing; Mix Minus; Stereo to Mono Mix Down;
Input Meters; Profanity Delay; EQ; Dynamics
AE-PS
Supply type 1x Switch mode power supply (110 volts/230 volts)
Input Voltage 90-264 VAC
Frequency 47 ~ 63 Hz
Power Factor PF>0.93 @ 230VAC , PF>0.98 @ 115VAC
Power Rating 100w max
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Logitek Audio Engine Reference Manual
Pinout Data
Appendix C Pinout Data
IO-4D
The IO-4D contains 2 x DB25 connectors, the top one being for inputs and the bottom for outputs.
The pinout designations for the input and output connectors are identical.
Audio Inputs/Outputs
Pin Connection Pin Connection
1 I/O 1 AES + 14 Ground
2 I/O 1 AES - 15 Ground
3 Ground 16 Ground
4 I/O 2 AES + 17 Ground
5 I/O 2 AES - 18 Ground
6 Ground 19 Ground
7 I/O 3 AES + 20 Ground
8 I/O 3 AES - 21 Ground
9 Ground 22 Ground
10 I/O 4 AES + 23 Ground
11 I/O 4 AES - 24 Ground
12 Ground 25 Ground
13 No connect
TIP: If using unbalanced connections, jumper the negative pins to ground.
IO-8D
The IO-8D contains 2x DB25F connectors – top connector is for inputs and bottom for outputs. The
pinout designations for the input and output connectors are identical. DB25M plugs are required.
Audio Inputs/Outputs
Pin Connection Pin Connection
1 I/O 1 AES + 14 I/O 2 AES +
2 I/O 1 AES - 15 I/O 2 AES 3 Ground 16 Ground
4 I/O 3 AES + 17 I/O 4 AES +
5 I/O 3 AES - 18 I/O 4 AES 6 Ground 19 Ground
7 I/O 5 AES + 20 I/O 6 AES +
8 I/O 5 AES - 21 I/O 6 AES 9 Ground 22 Ground
10 I/O 7 AES + 23 I/O 8 AES +
11 I/O 7 AES - 24 I/O 8 AES 12 Ground 25 Ground
13 No connect
TIP: If using unbalanced connections, jumper the negative pins to ground.
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10
I/O 7 Left +
23
I/O 8 Right +
Pinout Data
IO-20A
The IO-20A contains 2 x DB25 connectors, the top one being for inputs and the bottom for
outputs. The pinout designations for the input and output connectors are identical.
Audio Inputs/Outputs
Pin Connection Pin Connection
1 I/O 1 Left + 14 I/O 2 Right +
2 I/O 1 Left - 15 I/O 2 Right 3 Ground 16 Ground
4 I/O 3 Left + 17 I/O 4 Right +
5 I/O 3 Left - 18 I/O 4 Right 6 Ground 19 Ground
7 I/O 5 Left + 20 I/O 6 Right +
8 I/O 5 Left - 21 I/O 6 Right 9 Ground 22 Ground
11 I/O 7 Left - 24 I/O 8 Right 12 Ground 25 Ground
13 No connect
TIP: If using unbalanced connections, jumper the negative pins to ground.
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Logitek Audio Engine Reference Manual
Output 5 -
Output 6 -
Pinout Data
IO-24A
The IO-24A contains 3x DB25F connectors, the top one being for inputs 1-8, the middle for inputs
9-12 and outputs 1-4, and the bottom for outputs 5-12. DB25M plugs are required.
Audio Inputs (Top)
Pin Connection Pin Connection
1 Input 1 + 14 Input 2 +
2 Input 1 - 15 Input 2 3 Ground 16 Ground
4 Input 3 + 17 Input 4 +
5 Input 3 - 18 Input 4 6 Ground 19 Ground
7 Input 5 + 20 Input 6 +
8 Input 5 - 21 Input 6 9 Ground 22 Ground
10 Input 7 + 23 Input 8 +
11 Input 7 - 24 Input 8 12 Ground 25 Ground
13 No connect
Audio Inputs/Outputs (Middle)
Pin Connection Pin Connection
1 Input 9 + 14 Input 10 +
2 Input 9 - 15 Input 10 3 Ground 16 Ground
4 Input 11 + 17 Input 12 +
5 Input 11 - 18 Input 12 6 Ground 19 Ground
7 Output 1 + 20 Output 2 +
8 Output 1 - 21 Output 2 9 Ground 22 Ground
10 Output 3 + 23 Output 4 +
11 Output 3 - 24 Output 4 12 Ground 25 Ground
13 No connect
Audio Outputs (Bottom)
Pin Connection Pin Connection
1 Output 5 + 14 Output 6 +
2
3 Ground 16 Ground
4 Output 7 + 17 Output 8 +
5 Output 7 - 18 Output 8 6 Ground 19 Ground
7 Output 9 + 20 Output 10 +
8 Output 9 - 21 Output 10 9 Ground 22 Ground
10 Output 11 + 23 Output 12 +
11 Output 11 - 24 Output 12 12 Ground 25 Ground
13 No connect
TIP: If using unbalanced connections, jumper the negative pins to ground.
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Enclosure gnd
Ground
No connect
13
GPI In 13
32
Ground
Pinout Data
AE-C2
The AE-C2 contains 5x DB9F, 1x DB25F and 1x DB37F connectors. The four left hand DB9s are
from bottom to top, Port 1 to 4. Ports 1 to 3 are for surfaces and Port 4 is for PC control. The DB9
on the right is for External Sync, the DB25 is for GPI outputs and the DB37 is for GPI outputs and
inputs. All DB connectors are female and require male plugs.
Ports 1 and 2 use straight through DB9 connections from the Audio Engine to
the Surface. Port 3 swaps pins 3 and 8 on the engine side.
Port 1 & 2 – DB9
Pin Connection
1 Pair 1 Cue +
2 Pair 2 Tx +
3 Pair 3 Rx +
4 No connect
5 Enclosure gnd
6 Pair 1 Cue 7 Pair 2 Tx 8 Pair 3 Rx 9 No connect
Port 3 – DB9
Pin Connection
1 No connect
2 Pair 1 Tx +
3 Pair 2 Rx 4 No connect
5
6 No connect
7 Pair 1 Tx 8 Pair 2 Rx +
9 No connect
Port 4 – DB9
Pin Connection
1 No connect
2 Tx
3 Rx
4 No connect
5
6 No connect
7 No connect
8 No connect
9 No connect
Ext Sync – DB9
Pin Connection
1 Out +
2 Out 3 Ground
4 No connect
5
6 In +
7 In 8 Ground
9 No connect
GPI Output – DB25
Pin Connection Pin Connection
1 Relay 1+ 14 Relay 12 Relay 2+ 15 Relay 23 Relay 3+ 16 Relay 34 Relay 4+ 17 Relay 45 Relay 5+ 18 Relay 56 Relay 6+ 19 Relay 67 Relay 7+ 20 Relay 78 Relay 8+ 21 Relay 89 Relay 9+ 22 Relay 910 Relay 10+ 23 Relay 1011 Relay 11+ 24 Relay 1112 Relay 12+ 25 Relay 1213 No connect
GPI Output & Input – DB37
Pin Connection Pin Connection
1 GPI In 1 20 Ground
2 GPI In 2 21 Ground
3 GPI In 3 22 Ground
4 GPI In 4 23 Ground
5 GPI In 5 24 Ground
6 GPI In 6 25 Ground
7 GPI In 7 26 Ground
8 GPI In 8 27 Ground
9 GPI In 9 28 Ground
10 GPI In 10 29 Ground
11 GPI In 11 30 Ground
12 GPI In 12 31 Ground
14 GPI In 14 33 Ground
15 GPI In 15 34 Ground
16 Relay 13+ 35 Relay 1317 Relay 14+ 36 Relay 1418 Relay 15+ 37 Relay 1519 No connect
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1
Out +
Pinout Data
AE-C6
The AE-C6 contains 8x RJ45, 1x DB9, 1x DB25 and 1x DB37 connectors. The eight RJ45s are from
bottom to top, Port 1 to 8. The DB9 is for External Sync, the DB25 is for GPI outputs and the DB37
is for GPI outputs and Inputs. All DB connectors are female and require male plugs.
Port 1 to 6 – RJ45 (Surface)
Pin Cable Color Connection
1 White/Orange Cue 2 Orange Cue +
3 White/Green RS-485 Tx 4 Blue RS-485 Rx 5 White/Blue RS-485 Rx +
6 Green RS-485 Tx +
7 White/Brown No connect
8 Brown Ground
Port 7 to 8 – RJ45 (PC)
Pin Cable Color Connection
1 White/Orange No connect
2 Orange RS-232 Tx
3 White/Green RS-485 Tx 4 Blue RS-485 Rx 5 White/Blue RS-485 Rx +
6 Green RS-485 Tx +
7 White/Brown RS-232 Rx
8 Brown Ground
TIP: Pre-wired CAT-5 cables may swap the orange and green pairs.
TIP: For the PC connection on Ports 7 & 8 Use either RS-232 or RS-485, not both.
GPI Output – DB25
Pin Connection Pin Connection
1 Relay 1+ 14 Relay 12 Relay 2+ 15 Relay 23 Relay 3+ 16 Relay 34 Relay 4+ 17 Relay 45 Relay 5+ 18 Relay 56 Relay 6+ 19 Relay 67 Relay 7+ 20 Relay 78 Relay 8+ 21 Relay 89 Relay 9+ 22 Relay 910 Relay 10+ 23 Relay 1011 Relay 11+ 24 Relay 1112 Relay 12+ 25 Relay 1213 No connect
Ext Sync – DB9
Pin Connection
2 Out 3 Ground
4 No connect
5 No connect
6 In +
7 In 8 Ground
9 No connect
GPI Output & Input – DB37
Pin Connection Pin Connection
1 GPI In 1 20 Ground
2 GPI In 2 21 Ground
3 GPI In 3 22 Ground
4 GPI In 4 23 Ground
5 GPI In 5 24 Ground
6 GPI In 6 25 Ground
7 GPI In 7 26 Ground
8 GPI In 8 27 Ground
9 GPI In 9 28 Ground
10 GPI In 10 29 Ground
11 GPI In 11 30 Ground
12 GPI In 12 31 Ground
13 GPI In 13 32 Ground
14 GPI In 14 33 Ground
15 GPI In 15 34 Ground
16 Relay 13+ 35 Relay 1317 Relay 14+ 36 Relay 1418 Relay 15+ 37 Relay 1519 No connect
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Pinout Data
Surfaces
Pinouts for Logitek Control Surfaces are also included below. For further information see the
relevant manual for the Surface you are connecting.
Artisan/Mosaic
Surface RS-485 – DB9
Pin Connection
1 Cue +
2 RS-485 Rx +
3 RS-485 Tx +
4 No connect
5 Ground
6 Cue 7 RS-485 Rx 8 RS-485 Tx 9 No connect
Artisan/Mosaic
Surface RS-485 – RJ45
Pin Connection
1 Cue 2 Cue +
3 RS-485 Rx 4 RS-485 Tx 5 RS-485 Tx +
6 RS-485 Rx +
7 No connect
8 Ground
Numix/Remora/ROC
Surface RS-485 – DB9
Pin Connection
1 Cue +
2 RS-485 Tx +
3 RS-485 Rx +
4 No connect
5 Ground
6 Cue 7 RS-485 Tx 8 RS-485 Rx 9 No connect
PCs
Pinouts for common PC serial port pinouts are included below. If using a multiport serial card not
listed here, consult the manual for that card.
Comtrol PCI4J – RJ45
Pin Connection
1 RS-485 Tx +
2 No connect
3 No connect
4 RS-485 Tx 5 RS-485 Rx 6 No connect
7 No connect
8 RS-485 Rx +
The Supervisor Reference Manual contains additional information on wiring the PC
connection to an Audio Engine in various configurations.
PC RS-232 – DB9
Pin Connection
1 No connect
2 RS-232 Rx
3 RS-232 Tx
4 No connect
5 Ground
6 No connect
7 No connect
8 No connect
9 No connect
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Logitek Audio Engine Reference Manual
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