Allen&Heath iDR-8 User Manual

iDR-8

Digital Audio Mix Processor

USER GUIDE

Hardware Configuration

For software configuration refer to the iDR System Manager Help file

Publication AP4530

Limited One Year Warranty

This product is warranted to be free from defects in materials or workmanship for period of one year from the date of purchase by the original owner.

To ensure a high level of performance and reliability for which this equipment has been designed and manufactured, read this User Guide before operating.

In the event of a failure, notify and return the defective unit to ALLEN & HEATH Limited or its authorised agent as soon as possible for repair under warranty subject to the following conditions

Conditions Of Warranty

1. The equipment has been installed and operated in accordance with the instructions in this User Guide.

2. The equipment has not been subject to misuse either intended or accidental, neglect, or alteration other than as described in the User Guide or Service Manual, or approved by ALLEN & HEATH.

3. Any necessary adjustment, alteration or repair has been carried out by ALLEN & HEATH or its authorised agent.

4. The defective unit is to be returned carriage prepaid to ALLEN & HEATH or its authorised agent with proof of purchase.

5. Units returned should be packed to avoid transit damage.

In certain territories the terms may vary. Check with your ALLEN & HEATH agent for any additional warranty which may apply.

This product complies with the European Electromagnetic Compatibility directives 89/336/EEC & 92/31/EEC and the European Low Voltage Directives 73/23/EEC & 93/68/EEC.

This product has been tested to EN55103 Parts 1 & 2 1996 for use in Environments E1, E2, E3, and E4 to demonstrate compliance with the protection requirements in the European EMC directive 89/336/EEC. During some tests the specified performance figures of the product were affected. This is considered permissible and the product has been passed as acceptable for its intended use.

Allen & Heath has a strict policy of ensuring all products are tested to the latest safety and EMC standards. Customers requiring more information about EMC and safety issues can contact Allen & Heath.

NOTE: Any changes or modifications to the equipment not approved by Allen & Heath could void the compliance of the equipment and therefore the users authority to operate it.

iDR-8 User Guide AP4530 Issue 3

Whilst we believe the information in this guide to be reliable we do not assume responsibility for inaccuracies. We also reserve the right to make changes in the interest of further product development.

Allen & Heath Limited Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK

http://www.allen-heath.com

2 IDR-8 User Guide

Important Safety Instructions – Read First

Read instructions: Retain these safety and operating instructions for future reference. Heed all

warnings printed here and on the equipment. Follow the operating instructions printed in this User Guide.

Do not open: There are no user serviceable parts inside. Refer any service work to

competent technical personnel only.

Power sources: Connect the unit to mains power only of the type described in this User Guide

and marked on the rear panel. The power source must provide a good ground connection.

Power cord: Use the power cord with sealed mains plug appropriate for your local mains

supply as provided with the equipment. If the provided plug does not fit into your outlet consult your service agent. Route the power cord so that it is not likely to be walked on, stretched or pinched by items placed upon or against it.

Grounding: Do not defeat the grounding and polarisation means of the power cord plug.

Do not remove or tamper with the ground connection in the power cord.

Ventilation: Do not obstruct the ventilation slots or position the unit where the air flow

required for ventilation is impeded. If the unit is to be operated in a rack, plinth or other furniture ensure that it is constructed to allow adequate ventilation.

Moisture: To reduce the risk of fire or electric shock do not expose the unit to rain or

moisture or use it in damp or wet conditions. Do not place containers of liquids on it which might spill into any openings.

Heat: Do not locate the unit in a place subject to excessive heat or direct sunlight as

this could be a fire hazard. Locate the unit away from any equipment which produces heat such as power supplies, power amplifiers and heaters.

Environment: Protect from excessive dirt, dust, heat and vibration when operating and

storing. Avoid tobacco ash, drinks spillage, and smoke, especially that associated with smoke machines.

Handling: To prevent damage to the controls and cosmetics avoid placing heavy objects

on the equipment surfaces, scratching the surface with sharp objects, or rough handling and vibration. Protect the controls from damage during transit. Use adequate packing if you need to ship the unit. To avoid injury to yourself or damage to the equipment take care when lifting, moving or carrying the unit.

Servicing: Switch off the equipment and unplug the power cord immediately if it is

exposed to moisture, spilled liquid, objects fallen into the openings, the power cord or plug become damaged, during lightening storms, or if smoke, odour or noise is noticed. Refer servicing to qualified technical personnel only.

Installation: Install the unit in accordance with the instructions printed in this User Guide.

Do not connect the output of power amplifiers directly to the unit. Use audio connectors and plugs only for their intended purpose.

Important Mains Plug Wiring Instructions

The unit is supplied with a moulded mains plug fitted to the AC mains power lead. Follow the instructions below if the mains plug has to be replaced.

The wire which is coloured Green/Yellow or Green must be connected to the terminal in the plug which is marked with the letter E or with the Earth symbol.

This appliance must be earthed.

The wire which is coloured Blue or White must be connected to the terminal in the plug which is marked with the letter N.

The wire which is coloured Brown or Black must be connected to the terminal in the plug which is marked with the letter L.

iDR-8 User Guide 3

Introduction

This user guide is intended for the technical engineer in charge of the installation and configuration of the audio system. It is not intended for the day-to-day operator who should be provided with operating instructions specific to the application by the installer. The function, application, installation and technical details of the iDR hardware are described. It is kept short and to the point so that you can quickly find the information you need. The Technical Specification at the rear of the guide provides a complete and quick reference to the system parameters.

Please note : For details on the configuration of the DSP resources please refer to the Windows™ Help file which is part of the iDR System Manager software provided with the unit.

iDR is a growing system of components. Keep up to date with the latest additions and development by referring to our web site http://www.allen-heath.com configuration software, communication protocols, user guide, application notes and additional support information can be downloaded.

For information on the status and availability of the features described in this user guide and any changes and new additions please refer to the Release Notes which come with the current version of operating software.

We are able to offer further product support through our world-wide network of approved dealers and service agents. Our web site provides full company and product range information. To help us provide the most efficient service please keep a record of the serial number, and date and place of purchase to be quoted in any communication regarding this product.

. The latest version of the operating and system

The guide is structured for the technical user. The information is displayed as follows:

Description Control, connector and system functions are

briefly described together with related technical specifications.

 Information Where you see this symbol you will find an

explanation or background information on a particular topic.

 Software Where you see this symbol you will find a

reference to the Allen & Heath iDR System Manager software required to configure the unit.

Warnings For your own safety and to prevent damage

to equipment make sure you read and adhere to all warnings.

Model

Serial Number

Place of Purchase

Date of Purchase

4 IDR-8 User Guide

Contents

Important Safety Instructions .......................................... 3

Welcome to the iDR-8 ..................................................... 6

Main Features.................................................................. 7

Front Panel Overview ...................................................... 8

Rear Panel Overview ....................................................... 9

System Processing Overview ....................................... 10

Getting Started - Check the Contents........................... 13

iDR System Manager Software ..................................... 13

Installing the iDR-8 ........................................................ 14

Earthing ......................................................................... 15

Connections and Cables............................................... 15

Backup Power Supplies ................................................ 15

Starting Offline with the Software.................................. 16

Turning the iDR-8 On and Off ....................................... 16

Checking the Operating Code Version......................... 17

Updating the iDR-8 Operating Code............................. 17

The iDR-8 Setup Menus ................................................ 18

Changing the Unit Name............................................... 19

Checking the Current Settings...................................... 19

Rebooting the iDR-8 ...................................................... 19

Getting Started – Checking the Hardware.................... 20

Communicating with the iDR-8 ..................................... 21

Communicating Using TCP/IP ...................................... 22

Connecting Direct to a PC ............................................ 23

Connecting to a Network .............................................. 23

Communicating Using a Dial-Up Connection............... 24

Connecting to a Modem Using RS232 ......................... 25

Connecting to a PC Using RS232................................. 25

Working with iDR System Manager .............................. 26

Setting the Time and Day Clock ................................... 26

Archiving and Loading Configurations ......................... 26

XLR Analogue Inputs and Outputs ............................... 27

Monitor Inputs and Outputs .......................................... 28

Adding iDR-in and iDR-out Audio Expanders............... 30

Linking iDR-8 Units........................................................ 32

Adding the iDR-switch Expander .................................. 34

MIDI, SysNet and PL-Anet Ports ...................................37

The iDR-8 Memory System ........................................... 38

Starting with Patches..................................................... 39

Technical Specification ................................................. 40

Factory Default Settings ................................................ 46

Template for Front Panel Label..................................... 47

iDR-8 User Guide 5

Welcome to the iDR-8

The Allen & Heath iDR system is a set of components whose hardware, control and signal processing flexibility make it well suited to many installed, live sound and special project applications. The 2U rack or desk mount iDR-8 is the main unit in the iDR system having all the DSP (digital signal processing) power needed for 16 input and 16 output channels. It has 8 XLR analogue mic/line inputs and 8 XLR analogue line outputs. You can add a further 8 inputs and/or 8 outputs bringing it up to a maximum 16x16 matrix by plugging in the iDR-in and/or iDR-out audio expanders. The signal can be routed at three key points: the input source patch bay, central matrix, and output source patch bay.

Although the iDR does not work with networked audio, the expanders can be located up to 250 metres away so providing remote analogue audio inputs and outputs connected using CAT5 cables. You can also daisy chain multiple iDR-8 units in a distributed system. The units are linked using an 8 channel wide bus which plugs into the digital expander ports. Maximum matrix at any unit is 16x16 which includes the interconnecting bus. Several iDR-8 units can be linked in this way, but you can have only one iDR-in and one iDR-out expander per system. This is described later.

A stereo audio monitor is included. This has both input and output TRS jacks so that the monitor can ‘ripple through’ chained iDR units. It also feeds a front panel headphones socket for local monitoring of any point in the audio signal path. The monitor can access the input and output channels so that they can be used with the matrix. For example, you can achieve a 10x10 matrix from an unexpanded iDR-8. A built-in signal/noise generator provides a further source which can be routed to the input channels for test and line up purposes.

There are many operator control possibilities. You can configure the 16 front panel keys and 32 3colour LEDs, and use the DR-Link port to add up to 3 iDR-switch units for up to 72 additional switch closure and 48 open-collector logic outputs. In addition you can choose two of the following: MIDI, the Sys-Net serial port to interface with third party remote controllers, RS232 for modem communication, and the PL-Anet serial port for running a network of Allen & Heath PL wall plates and controllers.

The iDR-8 features networked control. It is configured using the iDR System Manager software via an Ethernet port either connected directly to the installer’s PC, or over a TCP/IP network. The PC control can be password protected for security. Once configured it runs stand alone using its built-in iDR Unit software with stored settings. iDR units can also be operated from networked PC workstations running PL Client software configured as ‘virtual’ wall plates by the installer using PL Designer software. An RS232 modem port lets the installer remotely interrogate units. A front panel RS232 port allows easy operating code update.

The iDR system offers tremendous flexibility. The system set up is stored in patches. Up to 99 patches can be programmed. You can decide which parameters are affected by each. To make best use of this it is important that you plan your installation carefully before you start. You can try out, prepare and archive different configurations offline before plugging in. Virtual panels and controllers are displayed so you can simulate how it will work for real. You can program the unit name, clock and IP address, and check diagnostic information and audio signal presence using the front panel menus accessed by removing the face plate. You can also attach your custom label here so that it is protected when the plate is refitted. For further information on the configuration of the unit please refer to the Help files which come with the software.

iDR System Manager software

System configuration

PL Designer software

PL Client software

'Vitual' wall plates

iDR-switch

NETWORK

RS232

link power

MODEM

DR-Link

iDR-switch

24 IN 16 OUT SWITCH CONTROLLER

iDR-in

iDR-out

iDR-8

AUDIO EXPANDERS

powerlock link

lock link power

PL-Anet

MIDI

Sys-Net

iDR-in

AUDIO INPUT EXPANDER

iDR-out

AUDIO OUTPUT EXPANDER

AUDIO MONITOR

DR-8

AUDIO MIX PROCESSOR

Switch closures

Open-collector logic

REMOTE CONTROLLERS

Relays

Lamps

Infra-red

6 IDR-8 User Guide

Main Features

• iDR-8 main processing unit 2U, 8 mic/line in, 8 line out audio mix processor with 16x16 channel matrix. The heart of the iDR system, it features 2 24bit Motorola DSPs.

• Daisy chain iDR-8 units Any number may be interconnected via the 8 channel digital bus using CAT5 cable. Many possibilities for flexible sound system solutions.

• iDR-in 1U, 8 mic/line input expander unit. Expands the number of inputs to 16. Can be up to 250 metres away for remote audio. Uses CAT5 digital link. One input expander per iDR system.

• iDR-out 1U, 8 line output expander unit. Expands the number of outputs to 16. Can be up to 250 metres away for remote audio. Uses CAT5 digital link. One output expander per iDR system.

• iDR-switch 1U add-on unit providing 24 contact closure switch inputs and 16 open collector logic outputs. Up to 3 units may be daisy chained for a maximum 72 switch and 48 logic outputs. Each unit can be separated by up to 250 metres. Connects via the DR-Link serial port.

• PL wall plates and remotes The Allen & Heath range of optional wall plates and controllers for remote switch, rotary encoder, infra-red, fader, LED indicator and logic output control. Connects via the PL-Anet serial port.

• Desk top or 19” rack mounting Rubber feet and removable rack ears provided.

• Universal mains power input automatically detects worldwide voltage from 100V to 240V AC.

• Removable face plate for accessing front panel setup menu system, RS232 connector and status indicators. Also provides a protected custom label facility.

• XLR mic/line inputs Electronically balanced, pin 2 hot, for microphone or line level equipment. Soft control of gain, pad switch and 48V phantom power. No internal adjustments needed.

• XLR line outputs Electronically balanced, pin 2 hot, 0dBu with +18dB headroom.

• Stereo audio monitor with front panel headphones socket and rear panel TRS jacks. Can monitor any point in the audio chain using manual or mouse selection. Can be used with the audio matrix as two additional channels, for example providing a 10x10 matrix from an unexpanded iDR-8.

• 16 Front panel soft keys can be assigned by the installer as level, mute or patch recall with different types of press action. Similar applies to the iDR- switch functions.

• 32 Front panel 3-colour soft LEDs can be assigned by the installer as signal meters, mute or patch related indicators.

• Front panel LCD display A 16 character 2 line LCD can display combinations of clock, patch name, unit name and user defined text. This can be linked to the patches.

• iDR System Manager software for system setup. Once configured the PC can be removed and the system operated stand alone.

• PL Designer and Client software for creation of ‘virtual’ wall plates and controllers that can be run from networked PC workstations. Operator control can be restricted by the installer.

• Powerful fixed architecture with full processing on all 16 input and output channels. Familiar GUI makes setup and control an easy task.

• 48kHz operation The iDR-8 has processing for a full 16x16 matrix running at 48kHz. An upgrade to 96kHz may become available in the future.

• Patchbays and crosspoint matrix The input source patchbay selects any physical input to any input channel. The output patchbay selects any output channel to any physical output. The 16x16 matrix allows independent level control at each crosspoint.

• Channel stereo linking and grouping Input and output channels can be linked for true stereo operation, and grouped for master fader control.

• Configurations can be named, archived and opened using PC files. These store the system setup parameters such as communication options, names, stereo linking, scheduled events and set of patches.

• Patches Up to 99 patches can be created, named and stored within the configuration file. A patch can work with any number of selected parameters including signal processing, soft key and LED settings. This provides a unique flexibility in setting up complex changes with simple operator control.

• Time and day of week for display on the unit LCD, and for scheduled event patch recalls using the internal iDR-4 clock.

• Network port connects to a PC or network for control using the iDR System Manager, PL Client software, Telnet, TCP/IP, remote access etc.

• RS232 ports on front and rear for connection to a PC for code update and to a modem for remote system interrogation.

• SysNet port for control by third part touch screens and other remote controllers.

• MIDI port IN, OUT and THRU sockets provided for remote control using show controllers and other MIDI equipment.

iDR-8 User Guide 7

• Naming Input channels, output channels, fader groups and PL devices can be named.

• Channel processing Includes faders, mute, polarity reverse, delay, parametric EQ, crossover filters noise gates, compressors and limiters.

• Ducking, AMM and paging System functions include a 16 priority level ducker, automatic mic mixer and two independent pagers.

• Signal generator provides sine wave, white, pink and band pass noise signals for system line up and test.

Front Panel Overview

L19L18L17 L20 L21 L22 L23 L24 L25L26L27L28L29

S4L4S5

CODE UPDATE

active

For connection to PC com port

L3L2

S2L1S3

LEVEL TRIM

S6L6S7

FRONT/REAR

RS232

ext sync lockslave 96k

Allen & Heath Wed 13:44:08

Shown with face plate removed.

1 Rack ears Mount the unit into a standard 19” equipment rack. Can be removed for stand alone desk or shelf mounting.

2 Rubber feet Provided separately. Press these into the base holes for stand alone desk or shelf mounting.

3 Write-on label strip To mark up the soft key and LED functions using a suitable marker pen or adhesive label. A Windows™ Word template is provided with the software.

4 Face plate fixing holes Fit the face plate using the four M3 screws provided once the unit is configured and labels fitted. A suitable 2mm hex Allen key is supplied.

5 LCD display Displays system information on a backlit 2x16 character LCD display. You can configure this to display different combinations of clock, patch name, unit name and user defined text.

6 Soft LEDs 32 3-colour LED indicators referred to as ‘soft’ because they can be assigned by the installer as audio meters, mute or patch related indicators. They can display red, green or yellow.

7 Soft keys 16 momentary action switches which can be assigned by the installer as level, mute or patch recall.

8 Headphones output A front panel socket is provided for stereo headphone monitoring. The level trim can be adjusted using a flat bladed screwdriver

scroll

ESC ENTER>MENU

powerlock link

lock link power

link power

L30 L31 L32

L10

L11

L12

L13

L14

L15

L16

hold for 2 seconds

audio monitor patch select day & clock network setup diagnostics

S9L9S10

S11

S12

S13

S14

S15

S16

Audio Mix Processor

DR-8

iDR-in

AUDIO INPUT EXPAND ER

iDR-out

AUDIO OUTPUT EXPANDER

iDR-switch

24 IN 16 OUT SWITCH CONTROLLER

9 Front panel RS232 port This is used for code update from a PC via its RS232 COM port. It can also be used for system configuration or checking using iDR System Manager software but the faster network port is recommended. Pressing the FRONT/REAR switch selects either the front or rear RS232 port. The active LED lights when the port is available.

10 Code update switch Puts the unit into code update mode ready to accept new operating code from a PC. Status is shown on the LCD.

11 Status LEDs Both the slave and ext sync lock LEDs light when the unit is correctly working as a slave in a daisy chained iDR system. The 96k LED is available for a possible future upgrade.

12 Menu key Press and hold this key for 2 seconds to access the setup menus. These let you set up the clock, unit name, TCP/IP and PPP communication parameters, select points in the channel signal path to monitor, and check system diagnostics.

13 scroll keys 4 keys are used to access the setup menus and change parameter values. The U and V keys are also used when the soft keys are assigned as up/down level controls.

14 Expander status LEDs These display the connection status. The link LED lights when communication is established via the DR-Link port. The lock LED lights when digital audio is working correctly.

15 Expander soft LEDs Can be assigned as audio meters, mutes or patch related indicators in the same way as the main iDR unit.

8 IDR-8 User Guide

Rear Panel Overview

Use null-modem cable to connect to PC com port

RS232 (MODEM)

active

100 - 240V~

47-63Hz ~ 90W MAX

WARNING

100 - 240V~

47-63Hz ~ 25W MAX

WARNING

100 - 240V~

47-63Hz ~ 25W MAX

WARNING

THIS APPARATUS MUST BE EARTHED. ATTENTION: REMPLACER LE FUSIBLE AVEC UN DES MEMES CARACTERISTIQUES. FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE FUSE WITH SAME TYPE AND RATING.

100 - 240V~

47-63Hz ~ 15W MAX

WARNING

THIS APPARATUS MUST BE EARTHED. ATTENTION: REMPLACER LE FUSIBLE AVEC UN DES MEMES CARACTERISTIQUES. FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE FUSE WITH SAME TYPE AND RATING. CAUTION: RISK OF ELECTRIC SHOCK. DO NOT OPEN. AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR. Made in the UK by ALLE N&HEATH LIMITED Complies with UL6500, C SA-E65, EN60065

NETWORK

MDI/X

LINKTX

Refer to user guide for port select ion details

AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.

MIDI OUT

active

FUSE: T1.6AL

SERIAL NUMBER

FUSE: T500mAL

SERIAL NUMBER

FUSE: T500mAL

SERIAL NUMBER

FUSE: T500mAL

MIDI IN

THRU

PL-ANET

CAUTION 20V DC

TO AVOID DAMAGE ONLY CONNECT COMPATIBLE REMOTE CONTROL EQUIPMENT TO THE PL-ANET PORT.

Made in the UK by ALLEN&H EATH LIMITED

OUT

DR-LINK

Made in the UK by ALLEN&H EATH LIMITED

OUT

DR-LINK

Made in the UK by ALLEN&H EATH LIMITEDCAUTION: RISK OF ELECTRIC SHOCK. DO NOT OPEN.

next previous

OUT IN

DR-LINK

active

DR-LINK

DIGITAL EXPANDER

MONITOR IN

AUDIO OUT

DIGITAL EXPANDER

AUDIO IN

DIGITAL EXPANDER

SYSNET PORT

AUDIO OUTAUDIO IN

MONITOR OUT

Complies with UL6500, C SA-E65, EN60065

+10V DC max total 500mA

open collector

+24V DC, 200mA max

LOGIC OUTPUTS

1516 13

+-+-+-+-

+10V

V +

opto

IN 8 IN 7 IN 5

OUT 8 OUT 7 OUT 5

IN 16 IN 15

OUT 16 OUT 15

SWITCH INPUTS

+10V

2K2

opto

switch

1214

+-+-+-+-

IN 6 IN 4

OUT 6 OUT 4

IN 14 IN 13 IN 11IN 12

OUT 14 OUT 13 OUT 11OUT 12 OUT 9

910

MIC/LINE INPUTS

LINE OUTPUTS

MIC/LINE INPUTS

LINE OUTPUTS

VGVGVG

+-+-+-

IN 3 IN 2 IN 1

OUT 3OUT 2OUT 1

IN 10

OUT 10

G 4321 G5678G 1211109 G13141516G 20191817 G21222324

567+-8

+-+-+-

IN 9

123+-4

1 Mains input Use the IEC lead with moulded mains plug suitable for your local mains voltage. The protection fuse rating is marked on the rear panel. The on/off switch is positioned on the rear panel to prevent accidental operation.

2 Network port RJ45 socket for connection to an Ethernet network or PC using UTP CAT5 cable. This port is recommended for configuring the system with iDR software. The MDI/X switch selects network or direct to PC operation. The link LED lights when communication is established. The TX LED lights when data is communicated.

Note: The RS232, MIDI, SysNet and PL-Anet control ports are not all available at the same time. A combination of two is selected using iDR System Manager. The associated active LED lights when the port is available.

3 RS232 (MODEM) port This is used for connection to a modem so that the unit can be interrogated by a remote PC over a standard telephone line. It can also be used for system configuration using iDR System Manager software but the faster network port is recommended. Pressing the front panel switch selects either the front or rear RS232 port.

4 MIDI port Standard opto-isolated MIDI port with IN, THRU and OUT connectors.

5 SysNet port An RS232 serial port for communication with third party remote controllers running the Allen & Heath SysNet protocol.

6 PL-Anet port An RS485 serial port for communication with a network of Allen & Heath PL wall plates and remote controllers using CAT5 STP cable.

7 DR-Link port RJ45 socket for control of iDR audio and logic expander units using CAT5 STP cable. IN and OUT ports are provided on the expander units so that the control can be daisy chained through a system with more than one expander.

8 Audio expander ports RJ45 sockets for communicating 8 channel digital audio between the iDR-8 and its expanders using CAT5 STP cable. Two cables are required between the expander and iDR-8, one for the audio, the other for DR-Link control.

9 Mic/Line inputs Balanced XLR inputs for microphone and line level sources. Adding the iDR-in expands the iDR-8 to 16 inputs.

10 Audio outputs Balanced XLR line level outputs with maximum +18dBu level. Adding the iDR-out expands the iDR-8 to 16 outputs.

11 Monitor inputs and outputs Balanced TRS jacks for L and R monitor inputs and outputs. These provide a line level version of the front panel stereo headphones output and can daisy chain through multiple iDR units.

12 Switch closure inputs These are provided on the iDR-switch. They can be hard wired from remote wall plate and controller switches and relays.

13 Open collector logic outputs These are provided on the iDR-switch. They can be used to control LEDs, lamps, relays and other devices.

14 Earth terminals These are provided to earth (ground) the switch and logic output cable shields.

iDR-8 User Guide 9

System Processing Overview

The iDR-8 has 8 analogue inputs and 8 analogue outputs. However, it has the onboard DSP processing for a full 16 input and 16 outputs. The extra 8 inputs and/or outputs are available when the iDR-in and/or iDR-out audio expanders are added. Only one of each may be added. This means that you can create an 8x8, 16x8, 8x16 or 16x16 system to suit your requirements. The stereo monitor input and output can also be added into the matrix in a non-expanded iDR-8 to create a 10x10 system. iDR- 8 and iDR-4 units can be daisy chained together using the 8 channel wide digital expander bus to create even more flexible systems with additional local inputs and outputs and a maximum 16x16 matrix.

The system architecture illustrating the expanded iDR is shown below:

10 IDR-8 User Guide

PHYSICAL INPUTS INPUT CHANNELS

+48V

ANALOG

INPUT

EXPANDER

INPUT

MONITOR

INPUT

GAIN

LIMIT

PAD

ADC

SOURCE

FADER

MUTE

SILENCE

M M

DELAY

SIG GEN

FREQ

OSCILLATOR PINK NOISE WHITE NOISE 1/3 OCT BP

The channel architecture illustrating the processing blocks is shown above. For detailed instructions on using these please refer to the Help file which comes with the iDR System Manager software.

PEQ4

MONO

STEREO

1+2

15+16

iDR NAME

MIX

MATRIX

COMPGATE

SIDECHAIN

FILTER

FADER

MUTE

PAGER

AMM

DUCKING

MM M

ACTIVE

SEL

OUTPUT CHANNELS

NAMENAME

PEQ8DELAY

HF SHELF LF SHELF BELL HF FILTER LF FILTER XOVER FILTER

ACTIVE MONITOR BUS

FADER

MUTE

FADER

LIMIT

MUTE

PHYSICAL OUTPUTS

SOURCE

DAC

PHONES TRIM

DAC

ANALOG OUTPUT

EXPANDER

OUTPUT

MONITOR

OUTPUT

Physical inputs and outputs These are the hardware audio connections including XLRs, digital expanders, headphones and monitor.

Input and output channels These are processing channels. The input channels can be sourced from any physical input. The physical outputs can be sourced from any output channel. The input and output channels are interconnected through the crosspoint matrix. They are routed to and from the physical connections via the source patchbays. The iDR-8 has enough processing built in for 16 input and 16 output channels when in 48kHz mode. The iDR-in and iDR-out expanders simply convert between analogue audio and the digital signals working with the iDR-

8 16x16 matrix.

Analogue inputs The iDR-8 and iDR-in each

have 8 analogue XLR inputs. These feed high grade balanced mic preamp circuits. They accept a wide range of microphone and line level signals. Gain, pad and 48V phantom power switching are controlled using the iDR System Manager software so they can be part of the recallable patch system. There are no trimmers or internal adjustments needed.

Analogue outputs The iDR-8 and iDR-out each have 8 analogue XLR line outputs. These are balanced and can produce up to +18dBu maximum signal level.

ADC and DAC converters These convert the analogue signals into digital (ADC) and processed digital signals into analogue (DAC). High grade 24bit converters are used.

Expander input and output 8 Channels of audio are communicated between iDR units using these RJ45 ports. The digital signals are fed to and from the associated virtual patchbays. Routing the signals through the patchbays in this way provides the flexibility for common sources to be networked between multiple iDR units using CAT5 cable.

Monitor inputs and outputs A front panel stereo headphones output is provided. Balanced line level L and R inputs and outputs are available on the rear panel. The inputs feed the active monitor bus and can also be routed into the source patchbay. The outputs are fed from a patchbay which gets its source from the active monitor bus or any output channel. In this way these connections can be used either as a monitor system or as channels in their own right.

Signal generator Provides another selectable source feeding the input channels through the patchbay. Variable frequency sine wave, pink noise, white noise or 1/3 octave band pass noise can be selected. These can be used for system line up and testing. The level is controlled using the fader and mute function.

Source patchbays These connect the physical inputs and outputs to the channels so providing a flexible ‘virtual patchbay’ routing system. One physical input can feed more than one input channel. One output channel can feed more than one physical output. Note that, as with any physical patchbay, you cannot route two sources into one channel, or two channels into one output.

Mix matrix This is the routing ‘heart’ of the system fed by all 16 input channels, and feeding all 16 output channels. It is known as a 16x16 crosspoint matrix. The signal can be switched or have its level independently controlled at any point. It is the matrix which provides the key to independent multi-source zone routing and level control.

iDR-8 User Guide 11

Delay Each input and output channel provides

delay from 0 up to 340ms. It can be adjusted in ms, metres or feet and has compensation for temperature.

Metering Full metering is provided from all the points marked with a meter bar in the diagram. Sidechain level, gain reduction, and stereo monitor meters are included.

PEQ The input channels each provide a 4 band fully parametric equaliser, the output channels an 8 band equaliser. Compared with the graphic EQ these are by far more powerful and accurate tools for adjusting frequency response. Selectable band types include HF shelf, LF shelf, bell, notch, HPF, LPF and crossover filter type. Variable or constant Q width can be used. The resulting response is displayed on a frequency curve.

Gate The input channel noise gate is used to turn the channel off when its level falls below a preset ‘threshold’ level. This shuts off unwanted noise such as ambient background pickup, equipment hiss and hum and so on. It provides threshold, depth, hold, attack and release controls. The sidechain can be switched in for frequency selective gating.

Compressor The input channel compressor controls the dynamics of the signal. It can, for example, help the intelligibility of the human voice by reducing the gain of high levels and increasing the gain of low levels, in effect squashing the levels into a more manageable range. The compressor provides threshold, ratio, hard/soft knee, makeup gain, attack and release controls. The sidechain can be switched in for frequency selective compression such as de-essing or LF contour.

Sidechain filter This input channel filter can be switched into the gate and/or compressor so that the dynamic response is tailored according to frequency. For example, you can reduce the ‘pumping’ effect of a compressor by slightly cutting the low frequencies in the sidechain, or prevent false opening by triggering a noise gate on the resonant frequency of an instrument using a bell response sidechain filter. Full type and parameter control is provided.

Pager Two independent paging systems are provided. They are fully configurable with selectable paging mic, zones affected, and variable ducker depth. They can be triggered from any soft switch and use any soft LED for indication. The switch action can be momentary or latching.

Ducking Any input can override any combination of outputs with variable depth, threshold and release. There are 16 assignable priority levels. Ducking is useful for overriding background music during announcements, recorded messages, jukebox playback and so on.

AMM The automatic mic mixer is popular in conference situations where several microphones can contribute to the mix. Microphones are only opened when they are being spoken into. The overall gain is reduced as more microphones are opened. The amount by which they are reduced is known as the NOM (number of open mics) setting. This maintains a more constant level and helps stop feedback. The ambient level is the sum of all the mic channels. Threshold adjusts the point at which the microphone opens above the ambient level.

Level sense switching The iDR logic outputs can be switched when channel signal activity is sensed. These could be used, for example, for video broadcast of a conference to switch between cameras when different microphones are spoken into.

Naming Each input and output channel, input and output fader group, PL device and patch memory can be named for identification in the system.

Limiter Each output channel includes a protection limiter to control the maximum level allowed at the outputs. This is typically used to protect loudspeakers and control maximum SPL listening levels. Threshold, attack and release can be controlled.

Faders, mute and polarity The input and output channels each provide a fader, mute switch and polarity reverse. The fader offers +5dB boost above the unity gain ‘0’ position. The matrix provides variable level crosspoints with independent fader control.

Groups and stereo linking Faders can be grouped so that a master fader takes control of assigned input or output faders. Channels can be linked for stereo operation with single fader level control and linked processing throughout the audio path.

Active monitor bus Any point in the audio signal path can be monitored. This is selected manually or by moving the mouse over an active window. The monitor can ‘ripple through’ several iDR units. With no monitor point selected, the signal from the previous iDR unit is passed through to the output. This means that one monitor output can be used to listen to any point in a multiple iDR system.

12 IDR-8 User Guide

Getting Started - Check the Contents

Keep the product packing in case you need to ship the product in the future. You should find the following components:

DR-8i Audio Mix Processor

DR-8

AUDIO MIX PROCESSOR

1x iDR-8 UNIT. This is packed with its face plate removed and rack ears fitted. The ears can be removed for desk mounting.

1x iDR-8 FACE PLATE. Separately packed so that you can start by configuring the unit using its front panel menu system.

4x SCREWS M3x12mm hex dome head. Part number AB4814. Use these to secure the face plate to the unit.

1x ALLEN KEY 2mm hex. Part number AT4819. For fitting the face plate screws.

4x RUBBER FEET. Part number AK0102. Press these into the underside holes if you want to desk mount the unit.

1x IEC MAINS LEAD with moulded plug suitable for connection to your local mains supply.

1x CAT5 UTP CABLE 2 metre RJ45. Part number AH4818. Connects the unit to your PC or to a network.

1x RS232 CABLE. Part number AL3653. Connects the unit to your PC for operating code update.

1x DOCUMENTATION PACK including Safety Sheet AP3345, this user guide AP4530 and the Registration Card AP3594.

The iDR System Manager Software Available

The self-extracting file iDRnnn.exe is available from the Allen & Heath web site. ‘nnn’ is the version number. For example iDR300.exe is version number V3.00. Once installed the software provides:

IMPORTANT: Before installing check the Allen & Heath web site to ensure you have the latest version.

README FILE Read this before starting.

RELEASE NOTES This file contains important notes about the related version of the software. Read before starting.

iDR SYSTEM MANAGER APPLICATION to configure and control the iDR system using a PC running Windows™.

WINDOWS™ HELP FILE for the iDR System Manager application.

iDR UNIT OPERATING CODE This is pre-installed in the iDR-8 unit. However, check that it is the latest version. Update the code as described later if it is not.

HYPERTERMINAL .ht FILES for setting up communication between the PC and iDR-8 for updating the operating code. Files are provided for COM1, 2 and 3.

SYSNET, TELNET and MIDI PROTOCOLS pdf files explaining how to use the SysNet and MIDI ports.

PL-Calculator, PL-Client and PL-Designer software for configuring physical and virtual wall plates and controllers.

CONFIGURATION FILES Two .cfg files are provided, DEFAULT and RESET. These give you a useful starting point.

LABEL TEMPLATE a Windows™ Word file for creating a customised label to fit to the iDR-8 front panel. Use this to identify the key and LED functions.

iDR-8 User Guide 13

Installing the iDR-8

The iDR-8 and its expanders are supplied ready for 19” rack mounting. For desk top or shelf mounting remove the rack ears and fit the 4 pressin rubber feet provided. Use Torx (star head) screwdrivers.

Fit the face plate once you have configured the settings with the front panel menu system and fitted any labels required to identify the key and LED functions. The plate is packed separately. Fit this using the 4 hex screws and the 2mm Allen driver provided.

Allow adequate space behind the units for plugging in the connectors. The dimensions are shown below.

Plug the cables into their correct sockets. We recommend that you colour code or label the cables to avoid errors when replugging them in the future.

iDR-8 MAIN UNIT

88mm

92mm

3.5"

3.6"

Do not obstruct the side ventilation slots.

Ensure adequate air flow around the units.

Do not install the units directly above or below heat or electromagnetic generating equipment such as power supplies and amplifiers.

To avoid damage to the internal assemblies do not fit screws or drill through the case metalwork.

Do not remove the cover of the iDR unit. There are no user serviceable parts inside. All configuration is carried out using the front panel menus and iDR System Manager software running on a PC

483mm

19"

443mm

17.4"

DR-8

AUDIO MIX PROCESSOR

Remove 2x rack ears

M4 Torx T20

Remove 2x rack ears

M3 Torx T10

Remove 2x rack ears

M3 Torx T10

Fit 4x feet

48mm

1.9"

Fit 4x feet

48mm

1.9"

Fit 4x feet

44mm

1.7" 1U

44mm

1.7" 1U

435mm

17.1"

75mm

360mm

14.2"

iDR-in and iDR-out EXPANDERS

powerlock link

lock link power

307mm

232mm

12"

75mm

iDR-switch EXPANDER

link power

209mm

8.2"

9.1"

144mm

5.7"

iDR-in

AUDIO INPUT EXPANDER

iDR-out

AUDIO OUTPUT EXPANDER

iDR-switch

24 IN 16 OUT SWITCH CONTROLLER

65mm

2.6"

14 IDR-8 User Guide

Earthing

The connection to mains earth (ground) in an audio system is important for two reasons:

Safety - To protect the operator from a high voltage shock associated with the AC mains supply feeding the system.

Audio Performance - To shield the audio signals from interference pickup and to minimise the effects of ground loops which result in audible hum and buzz.

connected to mains earth so that exposed metal parts are prevented from carrying high voltage which can injure or even kill the operator. The installation engineer should check the continuity of the safety earth from all points in the system including microphone bodies, cables, racks and equipment panels.

Earth is used to shield audio cables from external interference such as the hum fields associated with power transformers, lighting dimmer buzz, and computer radiation. Problems arise when the signal sees more than one path to mains earth. An earth loop results causing current to flow between the different earth paths. This condition is usually detected as mains frequency audible hum or buzz. To ensure safe and trouble-free operation we recommend the following:

Do not remove the earth connection from any iDR unit mains plug. The chassis of the unit is connected to mains earth through the power cable to ensure your safety. Audio 0V is connected to the chassis internally. If problems are encountered with earth loops use ‘ground lift’ switches or adaptors on connected equipment accordingly, or disconnect the screens from interconnecting audio cables at one end, usually at the destination.

Use a clean mains supply for the audio system. Ensure the audio mains supply is run separately from lighting, motor, kitchen equipment and any other potentially noisy mains supplies. Use a mains filter and surge protector for the audio supply if necessary. Take care to ensure good earthing in distributed systems such as those with audio units linked over long distances.

WARNING: For safety it is important that all equipment earths are

Connections and Cables

Use professional quality cables and connectors and check for accurate wiring and reliable solder joints.

Avoid running audio cables alongside mains, computer or lighting cables or near thyristor dimmer and power supply units. If unavoidable, cross the cables at right angles or run them in separate screened trunking to reduce the interference pickup.

Use low impedance sources such as 600Ω or less microphones to reduce susceptibility to interference. The outputs of the iDR are designed to operate at very low impedance to minimise interference problems.

Use balanced connections where possible as these provide further immunity by cancelling out interference that may be picked up on long cable runs. To connect an unbalanced source to a balanced Mic/Line input link the cold input (XLR pin3) to 0V earth (XLR pin1) at the unit. To connect a balanced Line output to an unbalanced destination, link the cold output to 0V earth at the iDR unit.

Backup Power Supplies and Safety Standards

The iDR system is designed to conform to internationally accepted safety standards IEC60065 and UL6500. It uses a built-in mains voltage power unit to supply the various internal power rails. It is recommended that the iDR system be backed up using a UPS (uninterruptible power supply) in installations where public safety is at risk. This is a requirement when an alarm or voice evacuation system is integrated.

supply may be required. The standards may also apply to the grade of cable and installation methods required.

iDR-8 User Guide 15

Check which safety standards apply to your installation. A backup UPS

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