Balanced Analogue Interface Module
USER GUIDE
Publication AP9109
Limited One Year Manufacturers 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 the place of purchase.
If this is not possible then please contact the authorised ALLEN & HEATH distributor or agent in your country as
soon as possible for repair under warranty subject to the following conditions.
Conditions of Warranty
The equipment has been installed and operated in accordance with the instructions in this User Guide.
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.
Any necessary adjustment, alteration or repair has been carried out by an authorised ALLEN & HEATH distributor or
agent.
This warranty does not cover fader wear and tear.
The defective unit is to be returned carriage prepaid to the place of purchase, an authorised ALLEN & HEATH distributor or agent with proof of purchase.
Please discuss this with the distributor or the agent before shipping.
If the unit is to be repaired in a different country to that of its purchase the repair may take longer than normal,
whilst the warranty is confirmed and parts are sourced.
Units returned should be packed to avoid transit damage.
In certain territories the terms may vary. Check with your ALLEN & HEATH distributor or agent for any additional
warranty which may apply.
If further assistance is required please contact Allen & Heath Ltd.
IMPORTANT- PLEASE READ CAREFULLY:
By using this Allen & Heath product and the software within it, you agree to be bound by the terms
of the relevant End User Licence Agreement (EULA), a copy of which can be found on the Allen & Heath
website in the product's pages. You agree to be bound by the terms of the EULA by installing, copying,
or otherwise using the software.
This product complies with the European Electromagnetic Compatibility directive 2004/108/EC
and the European Low Voltage Directive 2006/95/EC.
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 2004/108/EC.
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 console not approved by Allen & Heath could
void the compliance of the console and therefore the users authority to operate it.
GS-R24 Balanced Analogue Interface Module User Guide AP9109 Issue 1
Copyright © 2013 Allen & Heath Limited. All rights reserved
Allen & Heath Limited
Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK
http://www.allen-heath.com
Allen & Heath 3 GS_R24 Balanced Analogue Module User Guide
PACKED ITEMS
Check that you have received the following:
ALLEN&HEATH
MIDI OUT MIDI IN
1-8
17-24
INPUTS
9-16
25-32
1-8
17-24
OUTPUTS
GS-R24 BALANCED ANALOGUE INTERFACE MODULE
Also Packed in the box
• Safety Instructions—English
• Safety Instructions—French
• Addendum note ROHS
• Sticker
• This User Guide
9-16
25-32
BALANCED
ANALOGUE
I/O MODULE
Allen & Heath 4 GS_R24 Balanced Analogue Module User Guide
CONTENTS
Thank you for purchasing your Allen & Heath GS-R24 Analogue interface module. To
ensure that you get the maximum benefit from the unit please spare a few minutes
familiarizing yourself with the features and setup procedures outlined in this user guide.
For further information please refer to the additional information available on our web
site, or contact our technical support team.
http://www.allen-heath.com
This User Guide is to be read in conjunction with the GS-R24 console user
guide AP7784 in order to understand the routing of the interface signals to and
from the analogue system in the console. Also, some setup guides are
included on the Website for Digital Audio Workstations (DAWs). Please check
our website or with Tech Support for further information and setup guides.
Warranty.......................................................... 3
Packed Items ................................................... 4
Contents .......................................................... 5
Specifications ................................................... 6
Fitting Instructions ............................................ 7
Analogue In/Out Connector Pin Numbers ........... 8
Connector Cable Notes ...................................... 8
Module Panel Features ...................................... 9
Product Support................................................ 10
Registration ...................................................... 10
Allen & Heath 5 GS_R24 Balanced Analogue Module User Guide
GS-R24 ANALOGUE MODULE SPECIFICATIONS
General Specifications
Number of audio channels Output 32
Number of audio channels Input 32
Nominal Signal Level +4dBu Balanced
Analogue signal connector type 25 pin D-Sub Female (TASCAM standard pinout)
MIDI Input 5pin DIN
MIDI Output 5pin DIN
Headroom
Analogue Headroom 21dB
Channel Mapping to Interface
Console Channels Interface Channels
Mono Channels 1-24 1-24 *
Stereo Channel 1 25-26 (L-R)
Stereo Channel 2 27-28 (L-R)
Valve Channel 1 29
Valve Channel 2 30
Main Stereo (2 Track 1) out and DIG Master L-R in. 31-32 (L-R)
* The interface sends 17-24 can be switched from Mono channels 17-24 to Aux 1-4 and Groups 1-4 in order to
record or process summed or grouped signals. This is done by pressing the under-panel switch on the GS-R24
labelled 17-24=Aux+Grp.
Allen & Heath 6 GS_R24 Balanced Analogue Module User Guide
MODULE FITTING INSTRUCTIONS
Beware of ESD! Observe anti-static handling precautions—avoid touching the electronic devices on
the circuit board, ensure any static build up is discharged to earth before handling the module.
This can be achieved by ensuring the console is connected to the psu and the psu is plugged in to a
mains outlet but switched OFF, then touching a metal part of the console panel such as a screw head.
Remove the blanking panel at the
rear of the console by removing
the 4 screws.
Locate the module circuit board
in the plastic guide slots within
the housing.
Slide the module into the housing
and push firmly to insert the
module connectors into the console connector sockets.
Re-fit the 4 fixing screws to the
module panel.
Remove 4 x screws
Push
To remove the module for any reason, the easiest way is to unscrew and remove the fixing screws at each end of the panel
then use the D Sub cable connectors to gently pull out the module. A small side to side rocking action will help to displace
the circuit board connectors from the internal mother-board.
Allen & Heath 7 GS_R24 Balanced Analogue Module User Guide
25 PIN D TYPE CONNECTOR PINNING
Analogue Input & Output 25 way D connector pin ident.
Pin assignment (Input or Output connectors)
IN No. Designation
1 CH 8 HOT
2 CH 8 GROUND
3 CH 7 COLD
4 CH 6 HOT
5 CH6 GROUND
6 CH 5 COLD
7 CH 4 HOT
8 CH 4 GROUND
9 CH 3 COLD
10 CH 2 HOT
11 CH 2 GROUND
12 CH 1 COLD
13 NOT CONNECTED
14 CH 8 COLD
15 CH 7 HOT
16 CH 7 GROUND
17 CH 6 COLD
18 CH 5 HOT
19 CH 5 GROUND
20 CH 4 COLD
21 CH 3 HOT
22 CH 3 GROUND
23 CH 2 COLD
24 CH 1 HOT
25 CH 1 GROUND
113
1425
Connection guidelines & notes
The pin assignment of the 25 pin D Sub Miniature type
connectors conforms to the TASCAM DB-25 pin-out
standard developed over 15 years ago.
Multicore cable assemblies are readily available from
audio equipment suppliers or general electronic component suppliers such as Farnell and CPC in the UK.
When choosing ready made cable assemblies, ensure
that the cable mounted D Sub connector is a 25-Pin
Male type.
Allen & Heath 8 GS_R24 Balanced Analogue Module User Guide
MODULE PANEL FEATURES
ALLEN&HEATH
MIDI OUT MIDI IN
1-8
17-24
INPUTS
9-16
25-32
MIDI Input & Output
Standard 5 pin DIN MIDI connectors. The MIDI OUT carries the MIDI data
generated by the MIDI controllers and switches on the GS-R24.
The MIDI IN is the MIDI data required to illuminate LEDs and provide moving fader information to the console.
The MIDI IN connector can also be used for programming the operating
firmware in the console.
ANALOGUE INPUTS 1-32
Standard 25 pin D Subminiature type connector carrying 8 channels on each
connector. These are the analogue signals (balanced) which provide the GSR24 with playback from the multi-track recording medium. This could be in
the form of external Digital to Analogue converters (DACs) or an analogue
source such as a tape machine output.
1-8
17-24
OUTPUTS
9-16
25-32
BALANCED
ANALOGUE
I/O MODULE
ANALOGUE OUTPUTS 1-32
Standard 25 pin D Subminiature type connector carrying 8 channels on each.
These are the analogue signals (balanced) which are sent from the GS-R24
to the multi-track recording medium. This could be in the form of external
Analogue to Digital converters (ADCs) or an analogue system such as a tape
machine.
Allen & Heath 9 GS_R24 Balanced Analogue Module User Guide
PRODUCT SUPPORT
Investigate ALLEN & HEATH’s other ranges at
Large Live Sound mixers — iLive digital, and GL Series
Small Format Live Sound mixers — ZED, MixWizards and PA Series
DJ products — Xone Series
Sound Management Series — iDR Series
www.allen-heath.com
Registering your product
Thank you for buying the Allen & Heath GS-R24 module. We hope that you are happy with it and that you enjoy many years
of faithful service with it, and record and mix some great music.
Please go to www.allen-heath.com/register.asp and register your product’s serial number and your details. By registering with
us and becoming an official Registered User, you will ensure that any warranty claim you might make is actioned quickly and
with the minimum delay.
Alternatively, you may either copy or cut off this section of the page, fill in the details, and return it by mail to:
Allen & Heath Ltd, Kernick Industrial Estate, Penryn, Cornwall TR10 9LU, UK
Product Support: You can access Allen & Heath Tech Support by logging on to www.allen-heath.com/support
Allen & Heath 10 GS_R24 Balanced Analogue Module User Guide
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