Lars Thrane Iridium Certus 200 Guide

User & Installation Manual
LT-4200 Satellite Communications System
Iridium Certus® 200
Document Number: 95-102665 Rev. 1.00
Release date: February, 2023
Copyright © Lars Thrane A/S
Denmark
ALL RIGHTS RESERVED

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This Document is of © copyright to Lars Thrane A/S. It contains proprietary information, which is
disclosed for information purposes only. The contents of this document shall not in whole or in part be
used for any other purpose without prior permission from Lars Thrane A/S.
Disclaimer
Any responsibility or liability for loss or damage in connection with the use of this product and the
accompanying documentation is disclaimed by Lars Thrane A/S. The information in this manual is provided
for information purposes only, is subject to change without notice, and may contain ws or inaccuracies.
Manuals issued by Lars Thrane A/S are periodically revised and updated. Anyone relying on this information
should acquire the most current version e.g. from Lars Thrane A/S. Lars Thrane A/S is not responsible for
the content or accuracy of any translations or reproductions, in whole or in part, of this manual from any
other source.
Copyright
© 2023 Lars Thrane A/S. All rights reserved.
Disposal
Old electrical and electronic equipment marked with this symbol can contain substances hazardous to
human beings and the environment. Never dispose these items together with unsorted municipal waste
(household waste). In order to protect the environment and ensure the correct recycling of old equipment
as well as the re-utilization of individual components, use either public collection or private collection by
the local distributor of old electrical and electronic equipment marked with this symbol. Contact the local
distributor or dealer for information about what type of return system to use.
IMO and SOLAS
The equipment described in this manual is intended for use on commercial marine and leisure vessels. The
equipment is not covered by the International Maritime Organization (IMO) and Safety of Life at Sea
(SOLAS) regulations.

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WARNING - Product installation
To ensure correct performance of this equipment,
it is strongly recommended that professionals with
expertise, properly trained, and likewise authorized
within the industry is completing the installation.
Safety Instructions for Installer & Operator
The following safety instructions must be observed during all phases of operation, installation, service and
repair of this equipment. Failure to comply with these precautions or with specific warnings elsewhere in
this manual violates safety standards of design, manufacture and intended use of the equipment.
Lars Thrane A/S assumes no liability for the customer's failure to comply with these requirements.
Instructions for the Installer
Instructions for the Operator
WARNING –Do not disassemble
Do not disassemble or modify this equipment. Fire,
electrical shock, or serious injury can result.
WARNING –Keep away from live circuits
Operational personnel must not remove product
enclosure. Do not service the equipment with the
communication cable connected. Always
disconnect and discharge unit, cable and circuits
before touching them.
WARNING –Turn off power switch
Turn off the main power switch before installing
the equipment described in this manual. Do not
connect or disconnect equipment when the main
power switch is on.
WARNING –Use only the supplied cable
Use only the supplied power and communication
cable for connecting the equipment.
WARNING - Permanent watch
In case of smoke or water leaks into the
equipment, immediately turn off the power.
Continued use of the equipment can cause fire or
electrical shock. Keep access and permanent watch
of the equipment in order to prevent any
unwanted escalation.
WARNING –Input Power
The input voltage is: 24 VDC.
WARNING –Power supply protection
Make sure that the power supply is adequately
protected by a fuse or an automatic circuit breaker
when installing the equipment (15.0 A).
WARNING - Explosive atmosphere
Do not operate the equipment in the presence of
flammable gases or fumes. Operation of any
electrical equipment in such an environment
constitutes a definite hazard.
WARNING - Compass safe distance
The compass safe distance for standard and
steering compasses is 1.40 m (4.6 ft) and 0.90 m
(3.0 ft) respectively. Observe these distances to
prevent interference to a magnetic compass.
IMPORTANT - Safety distance
The safety distance from the LT-4230 Antenna
Unit, when the LT-4230 Antenna Unit is powered
and transmitting, is 0.4 m (1.3 ft), in order to
comply with the regional regulations.
Always keep this safety distance to the LT-4230
Antenna Unit to avoid any serious injury.
If the safety precautions and warnings on this site are not followed, warranty will be void.
WARNING –DC mains connector
The DC mains connector is to be used as the
disconnection device to isolate the equipment
from the mains supply.

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Required information for the reader
Throughout this document, essential information will be presented to the reader. The following text
(emphasized) has the following meaning and/or implication:
WARNING: A ‘Warning’ is an Operation or Service procedure that, if not avoided, may cause a hazard
situation, which could result in personnel death or serious injury.
IMPORTANT: Text marked ‘Important’ provides essential information to the reader and is key information
to the user for the equipment to work properly. Damage to the equipment can occur if
instructions are not followed.
NOTE: A ‘Note’ provides essential information to the reader.
IMPORTANT –FCC Compliance Note:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference
by one of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and the receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
This product does not contain any user-serviceable parts.
Repairs should only be made by an authorized Lars Thrane A/S service center. Unauthorized repairs or
modifications could result in permanent damage to the equipment and void your warranty and your
authority to operate this device under Part 15 regulations.
IMPORTANT –Innovation, Science and Economic Development Canada Compliance Note:
This device complies with Innovation, Science and Economic Development Canada license-exempt RSS
standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference,
and (2) this device must accept any interference, including interference that may cause undesired operation
of the device.

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About this manual
Intended readers
This is a User & Installation Manual for LT-4200 Satellite Communications System, or LT-4200 system. The
manual is primarily intended for installers and service personnel.
Personnel installing or servicing the system should be professionals with technical expertise, properly
trained, and likewise authorized.
All safety instructions and guidelines in this manual must be observed. The safety instructions are listed in
the beginning of the manual. The guidelines are to be found in the separate chapters, where it is needed.

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Software versions
This manual is applicable to the following software:
IMPORTANT: The latest software released by Lars Thrane A/S must always be used for new installations
of the LT-4200 System. The LT-4200 system should always be up to date to ensure the best
possible performance of the system and services.
NOTE: The latest LT-4200 Software and Release Notes can always be downloaded from the Lars
Thrane A/S website. Please contact Lars Thrane A/S for details about future software
releases and features.
Software Versions
Description
P/N
Version
LT-4200 System
71-102662
1.00R
Table 1: Software Versions

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Record of Revisions
Rev.
Description
Release Date
Initials
1.00
Initial Release
February, 2023
KTL

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Table of Contents
Introduction ...................................................................................................................................................... 1
Application and Limitations.............................................................................................................................. 2
Unpacking (in-the-box)..................................................................................................................................... 3
Inspection...................................................................................................................................................... 3
Accessories........................................................................................................................................................ 4
Mounts .......................................................................................................................................................... 4
Cable and connectors ................................................................................................................................... 4
System Overview .............................................................................................................................................. 5
Installation and Mounting................................................................................................................................ 6
LT-4210 Control Unit..................................................................................................................................... 6
LT-3120 Handset ........................................................................................................................................... 9
LT-3121 Cradle............................................................................................................................................. 10
LT-4230 Antenna Unit................................................................................................................................. 11
Pole Mount (2.0” pipe, Ø53.0mm, A4 Stainless), Antenna Unit............................................................... 19
Interfaces......................................................................................................................................................... 22
LT-4210 Control Unit................................................................................................................................... 22
LT-4230 Antenna Unit................................................................................................................................. 30
Power Consumption ....................................................................................................................................... 32
Maximum.................................................................................................................................................... 32
DC Isolation Resistance and Chassis Ground ................................................................................................. 33
Galvanic Isolated Power Supply..................................................................................................................... 35
AC/DC Galvanic Isolated Power Supply ..................................................................................................... 35
DC/DC Galvanic Isolated Power Supply ..................................................................................................... 35
User Interface (UI)........................................................................................................................................... 36
Display......................................................................................................................................................... 37
Menu System .............................................................................................................................................. 41
Activating the System..................................................................................................................................... 43
Acquire a Certus SIM Card.......................................................................................................................... 43
Postpaid Voice Features ............................................................................................................................. 43
Who’s My Service Provider ........................................................................................................................ 44
Change of Hardware and Software................................................................................................................ 45
Change of Hardware................................................................................................................................... 45
Software Update......................................................................................................................................... 46

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System Services............................................................................................................................................... 47
Voice Call..................................................................................................................................................... 47
Data ............................................................................................................................................................. 52
System Submenus........................................................................................................................................... 57
Phone .......................................................................................................................................................... 57
Settings........................................................................................................................................................ 60
System......................................................................................................................................................... 66
Bridge Alert Management (BAM)................................................................................................................... 71
Serial Interface (RS-422) ................................................................................................................................. 75
GNSS sentences........................................................................................................................................... 75
BAM sentences ........................................................................................................................................... 76
NMEA 0183 over UDP..................................................................................................................................... 77
Web server...................................................................................................................................................... 78
Accessing the built-in web server............................................................................................................... 79
Dashboard................................................................................................................................................... 80
Configuration .............................................................................................................................................. 81
Maintenance ............................................................................................................................................. 104
Legal notice ............................................................................................................................................... 107
Log out....................................................................................................................................................... 107
Disable login timeout................................................................................................................................ 107
Service & Repair............................................................................................................................................ 108
Appendixes.................................................................................................................................................... 109
App. A Applicable Standards .................................................................................................................... 109
App. B Bridge Alert Management (BAM)................................................................................................. 110
App. C Multiple talkers and multiple listeners ........................................................................................ 112
App. D GNSS sentences............................................................................................................................. 113
App. E BAM Sentences.............................................................................................................................. 114
App. F GNSS Receiver Integrity States ..................................................................................................... 115
App. G - Specifications.............................................................................................................................. 120
App. H - Outline Drawing: LT-4210 Control Unit...................................................................................... 121
App. I - Outline Drawing: Bracket Mount, Control Unit .......................................................................... 122
App. J - Outline Drawing: Flush Mount, Control Unit.............................................................................. 123
App. K - Outline Drawing: LT-4230 Antenna Unit.................................................................................... 124
App. L - Outline Drawing: Pole Mount (2.0” pipe, 53.0mm, A4 Stainless), Antenna Unit ..................... 126