Air-Bus TW1m User manual

PS11730AENAD01
11/2018
TW1m
Instruction Manual

PS11730AENAD01 TW1m - Instruction Manual
2/27
This document is the property of Airbus DS SLC and should not be copied or circulated without permission.
DECLARATION OF CONFORMITY We, Airbus Defence and Space Oy, Hiomotie 32, 00380 Helsinki, Finland,
declare under our sole responsibility that the product TW1m is in conformity with the provisions of the following
Council Directives:
• 2011/65/EC (ROHS)
• 2014/53/EU (Equipment Directive).
Copies of the Declaration of Conformity can be found at https://cinfodin-airbusds.com
When installed or integrated as a part of another electrical device or interfaced with an external device, the
integrator or manufacturer of the aforesaid device or assembly ('the End Product Manufacturer/System Integrator')
is responsible for compliance with all applicable local and other regulations, including but not limited to EMC, SAR
and safety regulations, and must obtain all necessary approvals and permits concerning the final device or
assembly.
The above mentioned Declaration of Conformity by Airbus Defence and Space Oy concerns the TW1m as a
standalone product. The End Product Manufacturer/System Integrator has the responsibility of providing separate
Declaration of Conformity concerning the whole system/application to which TW1m is installed.
Airbus Defence and Space Oy disclaims any and all liabilities in respect of the aforesaid.
Copyright © 2015-2017 Airbus DS SLC. All rights reserved.
Airbus Defence and Space® is a registered trademark of Airbus Defence and Space. Other product names,
trademarks or other identifiers mentioned in the document may be trademarks of their respective companies and
are mentioned for information purposes only.
The document is confidential and contains legally privileged information. The document may only be used for the
purpose for which it is submitted. Reproduction, transfer, distribution or storage of part or all of the contents in this
document in any form without the prior written permission of Airbus Defence and Space is prohibited.
Airbus Defence and Space operates a policy of continuous development. Airbus Defence and Space reserves the
right to make changes and improvements to any of the products described in this document, and the right to revise
this document or withdraw it at any time without prior notice.
Airbus Defence and Space will reasonably ensure that the information provided in this document is free from
material errors and omissions. However, the suggestions, directions, comments and statements made in the
document (e.g. regarding the compatibility, performance and functionality of mentioned hardware and software)
are not intended to be and cannot be considered as binding. The contents of this document are provided "AS IS".
The customer assumes full responsibility for using the document or any part of it. All comments and feedback are
welcomed by Airbus Defence and Space and are used as part of the continuous development and improvement of
Airbus Defence and Space's products, services and the document. Except as required by applicable law, no
warranties of any kind, either express or implied, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose, are made in relation to the accuracy, reliability or contents of
this document.
To the maximum extent permitted by the applicable law, under no circumstances shall Airbus Defence and Space
be responsible for any loss of data or income or any special, incidental, consequential or indirect damages
howsoever caused.
The availability of particular products may vary by region. Please check with the Airbus Defence and Space re-
seller nearest to you.
The use and operation of this device is subject to permission: for details contact your local frequency authority.
Includes RSA BSAFE cryptographic or security protocol software from RSA Security.
The crossed-out wheeled bin means that within the European Union the product must be taken to separate
collection at the product end-of-life. This applies to your device but also to any enhancements marked with
this symbol. Do not dispose of these products as unsorted municipal waste. Please deliver this product after
operational life to your distributor or sales representative for recycling.

TW1m - Instruction Manual PS11730AENAD01
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This document is the property of Airbus DS SLC and should not be copied or circulated without permission.
Contents
1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Company policy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Typographic conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. IMPORTANT SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Medical devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Active implanted medical devices (AIMD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Hearing aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Aircrafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Potentially explosive environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Care and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3. DEVICE OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Feature combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Device structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Device layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Prommer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Data mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Parametering mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
RF interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5. INTERFACES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
System Connector 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
System Connector 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
RS-232 Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
U.FL connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SIM card holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6. TOOLS AND ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7. INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Safety warnings and cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Environmental conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Tools and installation materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Cable types, making of cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Installation procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Powering up considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Connecting the power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Special considerations for vehicles, vessels and so on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Lightning protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8. PROGRAMMING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
PC Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Programming cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Configuring TW1m. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9. FEATURE GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
AT commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10.GLOSSARY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

INTRODUCTION
PS11730AENAD01 TW1m - Instruction Manual
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This document is the property of Airbus DS SLC and should not be copied or circulated without permission.
1. INTRODUCTION
 General
This document describes the TW1m TETRA Voice and Data Modem, including the key technical data, hardware,
installation, and features of the device.
The TW1m modem described in this manual is approved for use in the TETRA network. Contact your service
provider for more information about networks.
When using the features in the TW1m modem, obey all laws and respect the privacy and legitimate rights of others.
Company policy
Our policy is one of continuous development; details of all technical modifications will be included with service
bulletins. While every endeavour has been made to ensure the accuracy of this document, some errors may exist. If
any errors are found by the reader, Airbus Defence and Space Oy should be notified in writing.
Please state:
Title of the Document + Issue Number/Date of publication
Latest Amendment Number (if applicable)
Page(s) and/or Figure(s) in error
Please send to:
Airbus Defence and Space Oy
PO Box 592
FIN-40101 Jyväskylä
FINLAND
or e-mail to:
[email protected]m
 Typographic conventions
Notes (including cautions, tips, warnings and general notes) call your attention to information.
The following symbols are used in the notes:
1.
Task sequence symbol. Indicates the start of a procedure.
WARNING:
Warnings alert to dangers which may cause loss of life, physical injury or ill health in any form.
CAUTION:
Cautions indicate possible damage to equipment or a possibility of loss of data.
Note:
Notes indicate additional information such as recommendations or tips.

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This document is the property of Airbus DS SLC and should not be copied or circulated without permission.
IMPORTANT SAFETY INFORMATION
2. IMPORTANT SAFETY INFORMATION
 Operating environment
Remember to follow any special regulations in force in any area, and always switch off your radio when its use is
prohibited or when it may cause interference or danger. Use the radio only in its normal operating positions.
To maintain compliance with radio frequency exposure guidelines, only use enhancements approved by Airbus
Defence and Space for use with this radio.
Using two TETRA devices in close proximity (in the same vehicle, for example) may cause them to interfere with
each other. If you experience such interference, separate the two devices until the interference stops.
 Medical devices
Operation of any radio transmitting equipment may interfere with the functionality of inadequately protected medical
devices. Consult a physician or the manufacturer of the medical device to determine if they are adequately shielded
from external RF energy or if you have any questions.
Switch off your radio in health care facilities or near medical devices when any regulations posted in these areas
instruct you to do so. Hospitals or health care facilities may be using equipment that could be sensitive to external
RF energy.
Active implanted medical devices (AIMD)
To avoid potential interference with persons carrying active implanted medical devices (AIMD), it is important to
follow and respect the AIMD manufacturers' safety recommendations.
In general, persons with AIMD should keep the radio at least 20 cm (7.9 in) away from the AIMD device. If you have
any reason to suspect that interference is taking place, switch off your radio immediately and contact the nearest
medical service supporting the interference AIMD.
Hearing aids
Some digital wireless terminals may interfere with some hearing aids. If interference occurs, consult your service
provider.
 Vehicles
RF signals may affect improperly installed or inadequately shielded electronic systems in motor vehicles. These
systems include, for example, electronic fuel injection systems, electronic antiskid (antilock) braking systems,
electronic speed control systems, and air bag systems. For more information, check with the vehicle or additional-
equipment manufacturer or its representative.
Only qualified personnel should service the radio or install the radio in a vehicle. Faulty installation or service may be
dangerous and may invalidate any warranty that may apply to the radio.
Check regularly that all radio equipment in your vehicle is mounted and operating properly.
Do not store or carry flammable liquids, gases, or explosive materials in the same compartment as the radio or its
parts and enhancements.
For vehicles equipped with an air bag, remember that air bags inflate with great force. Do not place objects, in-
cluding installed or portable wireless equipment, in the area over the air bag or in the air bag deployment area. If in-
vehicle wireless equipment is improperly installed and the air bag inflates, serious injury could result.
 Aircrafts
Using or installing this radio in an aircraft is prohibited. Switch off your radio before boarding an aircraft. The use of
wireless teledevices in an aircraft may be dangerous to the operation of the aircraft or disrupt the wireless telephone
network, and may also be illegal.

IMPORTANT SAFETY INFORMATION
PS11730AENAD01 TW1m - Instruction Manual
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This document is the property of Airbus DS SLC and should not be copied or circulated without permission.
Potentially explosive environments
Using or installing this radio in an area with a potentially explosive atmosphere is prohibited.
Switch off the radio when in any area with a potentially explosive atmosphere and obey all signs and instructions.
Potentially explosive atmospheres include areas where you would normally be advised to turn off your vehicle
engine. Sparks in such areas could cause an explosion or fire resulting in bodily injury or even death.
Switch off the radio near refueling points such as gas pumps at service stations.
Observe restrictions on the use of radio equipment in fuel depots, storage and distribution areas, chemical plants, or
where blasting operations are in progress.
Areas with a potentially explosive atmosphere are often, but not always, clearly marked. They include below-deck
on boats, chemical transfer or storage facilities, vehicles using liquefied petroleum gas (such as propane or butane),
and areas where the air contains chemicals or particles such as grain, dust, or metal powders.
 Care and maintenance
The TW1m modem is a product of superior design and craftsmanship and should be treated with care. The
suggestions below will help you fulfil any warranty obligations and enjoy this product for many years.
• Keep the TW1m modem and all its parts and accessories out of reach of small children.
• Keep the TW1m modem dry. Precipitation, humidity and all types of liquids or moisture can contain minerals that
will corrode electronic circuits.
• Do not use or store the TW1m modem in dusty, dirty areas. Its moving parts can be damaged.
• Do not store the TW1m modem in hot areas. High temperatures can shorten the life of electronic devices,
damage batteries and warp or melt certain plastics.
• Do not store the TW1m modem in cold areas. When it warms up (to its normal temperature), moisture can form
inside, which may damage electronic circuit boards.
• Do not drop, knock or shake the TW1m modem. Rough handling can break internal circuit boards.
• Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the TW1m modem. Use only
detergents meant for electronic devices and printed circuit boards.
• Do not paint the TW1m modem. Paint can clog the moving parts and prevent proper operation.
• Use only the accessory antennas or other approved antennas. Unauthorised antennas, modifications or
attachments could damage the phone and may violate regulations governing radio devices.
All of the above suggestions apply equally to the product, charger or any accessory.
Note:
The Global Positioning System
The Global Positioning System (GPS) is operated by the United States government, which is solely
responsible for the accuracy and maintenance of the system. The accuracy of location data can be affected
by adjustments to GPS satellites made by the United States government and is subject to change with the
United States Department of Defense civil GPS policy and the Federal Radionavigation Plan. Accuracy can
also be affected by poor satellite geometry.
Availability and quality of GPS signals may be affected by buildings and natural obstacles as well as weather
conditions. The GPS receiver should only be used outdoors to allow reception of GPS signals. The GPS
should not therefore be used for precise location measurement and you should never rely solely on location
data from the GPS receiver.

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This document is the property of Airbus DS SLC and should not be copied or circulated without permission.
DEVICE OVERVIEW
3. DEVICE OVERVIEW
The TW1m modem has the following specific characteristics:
• Compact size
• Voice and data capability
• Integrator friendly - simple to connect interfaces using commercial connectors
• RF performance with power class 3L
• Location service GPS
• Programming interface
The TW1m modem is designed to be a TETRA modem solution that is compact in size yet provides a full TETRA
feature set required by typical data and voice applications. It has been made integrator- and service friendly with
commercial off-the-shelf connectors and a standard programming interface.
The TW1m modem is used as a TETRA radio, which allows applications to send and receive SDS messages as well
as use IP data services via a PEI-based serial interface. Optionally it can also transmit TETRA voice
communication.
The device is available with the following optional features, which must be ordered separately:
• Diplexer for GPS support
• SIM card reader (T-SIM or E2EE / BSI)
• USB or RS-232C data interface
• Programming cable
Note that the integrator must develop their own adapter to fit for mechanics and IP class.
 Feature combinations
The current feature combinations are listed below.
Table 1 Current feature combinations

Device structure
The TW1m modem consists of an adapter board, MAB-1, and the Airbus TH1n TETRA radio's radio board. Both the
TH1n board and the software are the same as used in the TH1n radio. Note that the software license of the smart
accessory, which enables the simultaneous use of voice and data, must be activated because the TH1n board
detects the adapter as a smart device. This is preconfigured at the factory for new orders; otherwise it can be
configured in the Taqto tools as a maintenance activity.
FEATURE OPTIONS
Adapter
• A2: Only RS-232 data
• A4: RS-232 and Audio, Smart interface license required
• AB1: RS-232/USB data, Audio, GPS, SIM card reader, Smart interface license required
TH1n radio
board
• RC-47: 380-400MHz, 406-430MHz
• RC-41: 806-825MHz, 851-870MHz
Feature by
licence
options
• Tx power class 3L (1.8W)
• Audio activation with smart interface, required with A4 and AB1 adapter combinations
• Type 1A DMO repeater
Note:
Activating the Tx power class and DMO repeater license at the factory is optional. By default, the customer
can activate the feature using Taqto. The smart interface is activated at the factory in the case of the A4 and
AB1 adapters by default

DEVICE OVERVIEW
PS11730AENAD01 TW1m - Instruction Manual
8/27
This document is the property of Airbus DS SLC and should not be copied or circulated without permission.
MAB-1 is an adapter board that routes the RF-, audio- and digital I/O interfaces from the TH1n main PCB to the
external ports for modem use.
MAB-1 is specified to be connected to the following TH1n types: RC-36 (HWID 07xx only) and RC-47 main PCB's.
MAB-1 must be integrated into an enclosure for environmental protection. Interfaces are provided as commercial
connectors and external cabling must be customized by the user.

TW1m - Instruction Manual PS11730AENAD01
9/27
This document is the property of Airbus DS SLC and should not be copied or circulated without permission.
TECHNICAL DATA
4. TECHNICAL DATA
The technical specifications of the TW1m modem are listed in Table 2.
Table 2 Technical data
The mounting of the screw positions is shown in Figure 1.

Interfaces
The TW1m modem uses commercial connectors (Molex) available from electronic connector resellers. Molex cable
kits are available to simplify the setup. The integrating requires that the cables are tailored to the optimum length.
Airbus does not provide the tailored cables.
The RF antennas should be installed a minimum of 50cm from the TW1m boards to avoid TETRA interferences.
The PCB connector has a 3-wire serial port with 2.78 V voltage levels for data communication. The RS-232 voltage
levels and HW flow control are provided with accessories.
FREQUENCY: Band 3 : TX 380-390 MHz, RX 390-400 MHz
Band 4: TX 410-420 MHz, RX 420-430 MHz
RF OUTPUT POWER EN 300392-2 compliant, power class 3L (1.8W)
DIMENSIONS (W X H X D) MM 84 mm x 64 mm x 24,7 mm
WEIGHT 66 g
POWER SUPPLY REQUIREMENTS +Regulated 3.9V DC, 2.5A
POWER CONSUMPTION Note that all figures are subject to change.
TETRA Call: 8 W (maximum TX slot consumption in 50Ωantenna load.)
GPS: 180 mW (typical average, in addition to other power consumption
when on) and 280mW maximum peak consumption
OPERATING TEMPERATURE -20 to +55°C
Figure 1 Mounting of screw positions
Note:
Simultaneous use of AT commands and IP data is not supported.

TECHNICAL DATA
PS11730AENAD01 TW1m - Instruction Manual
10/27
This document is the property of Airbus DS SLC and should not be copied or circulated without permission.
The TW1m modem features a GPS receiver for positioning applications. An external active GPS antenna is
required for the receiver. Do not use a passive GPS antenna!
The TW1m modem does not have an integrated TETRA antenna. Therefore, a connector for an external antenna is
provided. A combined TETRA/GPS antenna can also be used.
Audio and the majority of the control signals are routed straight from the system connectors to the TH1n side
connector flex.
These may be connected to external devices in all cases regardless of the MAB-1 operation mode. Operations on
these signals are determined by TH1n.
Data signals are routed to the RS-232 transceiver by default. Connecting the USB_VBUS voltage of 5V routes
these signals via USB. These ports may not be used simultaneously.
For data signals, the MAB-1 operation may be split into three operating modes. These are described in chapter
Operating modes.
 Device layout
Figure 2 TW1m modem