Lars Thrane iridium LT-3100S Guide

User & Installation Manual
LT-3100S GMDSS Satellite Communications System
Document Number: 95-101817 Rev. 1.02
Release date: January 8, 2020
Copyright © Lars Thrane A/S
Denmark
ALL RIGHTS RESERVED

LT-3100S GMDSS User & Installation Manual Rev. 1.02
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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 errors 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
© 2019 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 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.
WARNING –DC circuit breaker
DC circuit breaker must be used as ON/OFF switch
on the Control Unit and Interface Unit.
WARNING –Overcurrent protective
Overcurrent protective devices used as safeguard
(specific to IEC 62368-1) - Lars Thrane A/S has the
responsibility of use of non-IEC approved fuses in
the equipment.
Safety Instructions for the Installer
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
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 –Input Power
The input voltage range is: 12-24 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:
LT-3110S Control Unit (max. 15.0 A)
LT-3140S Interface Unit (max. 5.0 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 0.85 m (2.8 ft) and 0.65 m
(2.1 ft) respectively. Observe these distances to
prevent interference to a magnetic compass.
If the safety precautions and warnings on this site are not followed, warranty will be void.

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Safety Instructions for the 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 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 - 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 –DC mains connector
The DC mains connector is to be used as the
disconnection device to isolate the equipment
from the mains supply.
IMPORTANT - Safety distance
The safety distance from the LT-3130 Antenna
Unit, when the LT-3130 Antenna Unit is powered
and transmitting, is 0.1 m (0.3 ft), in order to
comply with the regional regulations.
Always keep this safety distance to the LT-3130
Antenna Unit to avoid any serious injury.
If the safety precautions and warnings on this site are not followed, warranty will be void.

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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 in order 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.
IMPORTANT –FCC Compliance Note:
This device complies with the GMDSS provisions of part 80 of the FCC rules.

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About this manual
Intended readers
This is a User & Installation Manual for LT-3100S GMDSS Satellite Communications System, or LT-3100S
GMDSS 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:
Software Versions
Description
Version
LT-3100S GMDSS System
1.01
Table 1: Software Versions

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Record of Revisions
Rev.
Description
Release Date
Initials
1.00
Original document.
November 4, 2019
PT
1.01
GMDSS user functions
November 19, 2019
KK, PT
1.02
Added FCC compliance notes, Part 80 (page iv)
January 8, 2020
PT

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Table of Contents
Introduction ...................................................................................................................................................... 1
Unpacking (in-the-box)..................................................................................................................................... 2
Inspection...................................................................................................................................................... 2
Accessories........................................................................................................................................................ 3
GMDSS parts ................................................................................................................................................. 3
SSAS parts...................................................................................................................................................... 3
Mounts .......................................................................................................................................................... 3
Cable and connectors ................................................................................................................................... 3
System Overview .............................................................................................................................................. 4
Installation and Mounting................................................................................................................................ 6
LT-3110S Control Unit................................................................................................................................... 6
LT-3120 Handset ........................................................................................................................................... 9
LT-3121 Cradle............................................................................................................................................. 10
LT-3130 Antenna Unit................................................................................................................................. 11
LT-3140S Interface Unit .............................................................................................................................. 15
LT-3150S Alarm Panel................................................................................................................................. 16
LT-3160S Printer Adapter ........................................................................................................................... 18
Bracket Mount, Antenna Unit.................................................................................................................... 19
Pole Mount, Antenna Unit ......................................................................................................................... 21
Interfaces......................................................................................................................................................... 23
LT-3110S Control Unit................................................................................................................................. 23
LT-3130 Antenna Unit................................................................................................................................. 26
LT-3140S Interface Unit .............................................................................................................................. 28
User Interface (UI)........................................................................................................................................... 30
Display......................................................................................................................................................... 31
Menu system............................................................................................................................................... 34
System status.............................................................................................................................................. 36
Using the system............................................................................................................................................. 38
Distress Alert............................................................................................................................................... 38
Maritime Safety Information (MSI)............................................................................................................ 39
Priority voice call......................................................................................................................................... 39
Priority messaging ...................................................................................................................................... 39
Non-priority voice call ................................................................................................................................ 40

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Non-priority messaging .............................................................................................................................. 43
Position of vessel ........................................................................................................................................ 44
Bridge Alert Management.......................................................................................................................... 44
Printing........................................................................................................................................................ 48
Web server...................................................................................................................................................... 49
Dashboard................................................................................................................................................... 51
Software update ......................................................................................................................................... 51
Diagnostic report ........................................................................................................................................ 51
Accessing the built-in web server............................................................................................................... 52
Service & Repair.............................................................................................................................................. 53
Appendixes...................................................................................................................................................... 54
App. A - Bridge Alert Management (BAM)................................................................................................. 54
App. B - Specifications ................................................................................................................................ 58
App. C - Outline Drawing: LT-3110S Control Unit...................................................................................... 60
App. D - Outline Drawing: Bracket Mount, Control Unit........................................................................... 61
App. E - Outline Drawing: Flush Mount, Control Unit ............................................................................... 62
App. F - Outline Drawing: LT-3130 Antenna Unit ...................................................................................... 63
App. G - Outline Drawing: LT-3140S Interface Unit................................................................................... 64
App. H - Outline Drawing: LT-3150S Alarm Panel...................................................................................... 65
App. I - Outline Drawing: LT-3160S Printer Adapter.................................................................................. 66
App. J - Outline Drawing: Pole Mount, Antenna Unit ............................................................................... 67
App. K - Outline Drawing: Bracket Mount, Antenna Unit ......................................................................... 68
App. L - Outline Drawing: LT-3120 Handset............................................................................................... 69
App. M - Outline Drawing: LT-3121 Cradle ................................................................................................ 70
App. N - EU Declaration of Conformity ...................................................................................................... 71

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Introduction
Congratulations on your purchase of the LT-3100S GMDSS Satellite Communications system!
The LT-3100S GMDSS Satellite Communications System is a maritime satellite communication product from
Lars Thrane A/S. The LT-3100S GMDSS system is designed for the professional market (deep sea, fishing,
and workboats), but can be used for the leisure market as well. The LT-3100S GMDSS system meets all
standards and certification requirements needed for worldwide maritime satellite communication
equipment.
The LT-3100S GMDSS system has voice and data capabilities with 100% global coverage provided by the
Iridium® Communications Network. The LT-3100S GMDSS system offers the following Iridium® GMDSS
services:
•Distress Alert
•Safety Voice
•Maritime Safety Information (MSI)
The LT-3100S GMDSS system - basic consists of a control unit, antenna unit, handset and cradle. The
additional GMDSS system units available are: LT-3140S Interface Unit, LT-3150S Alarm Panel, and LT-3160S
Printer Adapter.
A single coaxial cable connects the control unit with the antenna unit. Using a standard coaxial cable, up to
500 meters of separation between the units can be obtained, giving freedom to mount the antenna unit in
the best possible location, with free line of sight to the satellites.
The LT-3100S GMDSS system can be used as the primary satellite communication product on vessels,
covering the basic communication needs in terms of connectivity between the ship and shore.

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Unpacking (in-the-box)
Unpack the LT-3100S GMDSS Satellite Communications System –Basic (P/N: 90-102071) and check that the
following items are present in the box:
•51-101812 LT-3110S Control Unit
•51-100988 LT-3120 Handset
•51-101181 LT-3121 Cradle
•51-100989 LT-3130 Antenna Unit
•91-100771 Bracket Mount, Control Unit
•91-102118 Power Cable, 3m
•4 x Stainless steel A4 screws (for Bracket Mount, Control Unit)
•2 x Stainless steel A4 screws (for Cradle)
•4 x Unit Test Sheets
•95-101817 LT-3100S GMDSS User & Installation Manual
NOTE: Antenna unit mounts (bracket and pole mount) are not included in the LT-3100S GMDSS
Satellite Communications System –Basic (P/N: 90-102071) and must be ordered
separately. The antenna unit must only be mounted, using the bracket or pole mounted,
delivered by Lars Thrane A/S. The antenna unit mounts are listed with part numbers (P/N)
in Accessories on page 3.
Inspection
Inspect the shipping cartons and/or wooden box immediately upon receipt for evidence of damage during
transport. If the shipping material is severely damaged or water stained, request that the carrier's agent be
present when opening the cartons and/or wooden box. Save all box packing material for future use.
After unpacking the system and opening the cartons, inspect it thoroughly for hidden damage and loose
components or fittings. If the contents are incomplete, if there is mechanical damage or defect, or if the
system does not work properly, notify your dealer.
WARNING: To avoid electric shock, do not apply power to the LT-3100S GMDSS system components if
there is any sign of shipping damage to any part of a unit or the outer cover. Read the Safety
Instructions at the front of this manual before installing or operating the unit.

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Accessories
GMDSS parts
The following GMDSS parts are not part of the basic system and must be ordered separately:
•51-101814 LT-3140S Interface Unit
•51-101815 LT-3150S Alarm Panel (incl. 25m cable)
•51-101816 LT-3160S Printer Adapter (incl. 25m cable)
SSAS parts
The following SSAS parts are not part of the basic system and must be ordered separately:
•91-102073 SSAS Alert Button (incl. 50m cable)
•91-102074 SSAS Test Button (incl. 50m cable)
Mounts
The following Mount parts are not part of the basic system and must be ordered separately:
•91-100772 Flush Mount, Control Unit
•91-100773 Bracket Mount (1.5” to 2.5” tube), Antenna Unit
•91-100774 Pole Mount (1.5” tube), Antenna Unit
Cable and connectors
The following cable and connector parts are not part of the basic system and must be ordered separately:
•91-100768 Aux Cable, 3m
•91-101183 Coaxial cable Ø4.9mm, 10m
•91-101184 Coaxial cable Ø4.9mm, 25m
•91-101137 Coaxial Cable Ø10.3mm 10m
•91-101138 Coaxial Cable Ø10.3mm 25m
•91-101139 Coaxial Cable Ø10.3mm 50m
•91-101140 N Conn. (male) for Coaxial Cable Ø4.9mm
•91-101186 N Conn. (male) for Coaxial Cable Ø10.3mm
•91-101187 Crimping Tool for Coaxial cable Ø4.9mm
•91-101188 Crimping Tool for Coaxial cable Ø10.3mm
Coaxial cables are delivered with one fixed N connector (outdoor mounting), another loose N connector
and crimp parts come with the cable. It is required to use an appropriate crimping tool for attaching the
loose N connector.
NOTE: For further details on the cable and connectors, please contact Lars Thrane A/S. A coaxial
cable up to a length of 500 meters can be used for connecting the LT-3110S Control Unit
and the LT-3130 Antenna Unit. Details about the coaxial cable, specification and cable
lengths, are described in LT-3130 Antenna Unit on page 26.

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System Overview
The LT-3100S GMDSS Satellite Communications System is a standalone communication product, which is
using the Iridium® satellite constellation. The LT-3100S GMDSS system is working on the new Iridium® NEXT
satellites. An overview of the LT-3100S GMDSS system is illustrated in Figure 1.
The LT-3100S GMDSS system consists of the following units, provided by Lars Thrane A/S:
•LT-3110S Control Unit
•LT-3120 Handset
•LT-3121 Cradle
•LT-3130 Antenna Unit
•LT-3140S Interface Unit
•LT-3150S Alarm Panel
•LT-3160S Printer Adapter
Figure 1: LT-3100S GMDSS system - components and interfaces.

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NOTE: The LT-3100S GMDSS system will be released to customers with the initial software version
1.01. Software version 1.01 includes support for all GMDSS services. Additional none
GMDSS services might be added in later software releases. Please contact Lars Thrane A/S
for details about future software releases and features: [email protected]

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Installation and Mounting
LT-3110S Control Unit
The LT-3110S Control Unit is the master unit in the system, supporting all external interfaces and the
operational user interface. The LT-3110S Control Unit is designed for indoor mounting. See the
specifications in App. B - Specifications on page 58.
The LT-3110S Control Unit has the following interfaces:
•4-pin power connector (male), marked ‘PWR’
•Chassis ground connector, marked ‘GNDC’
•N connector (female) for coaxial cable to the LT-3130 Antenna Unit, marked ‘ANT’
•Ethernet (RJ-45) connector, marked ‘LAN’
•10-pin auxiliary connector (male), marked ‘AUX’
•SIM card, marked ‘SIM’
•5-pin connector (female) for LT-3120 Handset (front of the control unit)
Figure 2: LT-3110S Control Unit (front view).

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The LT-3110S Control Unit interfaces are described in Interfaces on page 23. The LT-3110S Control Unit,
front and backside view, are illustrated in Figure 2 and Figure 3.
The LT-3110S Control Unit user interface, display and buttons, are described in User Interface (UI) on page
30.
NOTE: The LT-3110S Control Unit must be mounted with either the Bracket Mount, Control Unit
(P/N: 91-100771) or Flush Mount, Control Unit (P/N: 91-100772) - illustrated in Figure 4
and Figure 5. The Flush Mount, Control Unit is not included in the LT-3100S GMDSS Satellite
Communications System –Basic (P/N: 90-102071) and must be ordered separately.
Mounting and installation considerations:
For optimum system performance, some guidelines on where to install or mount the LT-3110S Control Unit
must be followed. It is recommended to mount the unit in a location, which fulfills these requirements:
•Mount the unit indoor (not exposed to direct water)
•Mount the unit using either the bracket mount or flush mount
•Mount the unit on a rigid structure with a minimum of exposure to vibration and shock
•Mount the unit in an area with an ambient temperature between -15°C to +55°C (+5°F to +131°F)
Figure 3: LT-3110S Control Unit (backside view).

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The Bracket Mount and Flush Mount for the LT-3110S Control Unit are illustrated in Figure 4 and Figure 5.
Figure 4: Bracket Mount, Control Unit.
Figure 5: Flush Mount, Control Unit.

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LT-3120 Handset
The LT-3120 Handset is the primary voice interface for the LT-3100S GMDSS system. The LT-3120 Handset
must be connected on the front of the LT-3110S Control Unit. The connector is illustrated in Figure 2 on
page 6.
The LT-3120 Handset is connected to the LT-3110S Control Unit via a 5-pin proprietary angle connector. The
spiral cord, fixed to the LT-3120 Handset is ~ 0.4 m from handset to connector, when coiled. The spiral cord
can be stretched to a maximum of 2 m. The LT-3120 Handset is designed for indoor mounting. Check the
specifications in App. B - Specifications on page 58.
The LT-3120 Handset has the following characteristics:
•High-performance audio speaker and microphone
•Separate ringer (buzzer)
•Speaker volume control (double-button, marked with ‘+’ and ‘-‘, for volume up and down)
•Built-in off-hook detection circuit
NOTE: The LT-3110S Control Unit will inform the user if the LT-3120 handset is not properly
connected to the LT-3110S Control Unit. The following user information will be showed in
the display “Handset not connected”.
NOTE: The LT-3120 Handset must be operated together with the LT-3121 Cradle, for the off-hook
detection circuit to work. The LT-3121 Cradle is described in LT-3121 Cradle on page 10.
Figure 6: LT-3120 Handset (front view).
Figure 7: LT-3121 Handset (backside view).