Lars Thrane 51-101814 LT-3140S Interface Unit

The Lars Thrane 51-101814 LT-3140S Interface Unit is a critical hardware component that expands the capabilities of the LT-3100S GMDSS satellite communications system. As a central hub for external security and signalling hardware, this Lars Thrane unit is essential for vessels requiring advanced security monitoring and distress alerting beyond standard voice and data.

Built to the same rigorous maritime standards as the LT-3100S terminal, the LT-3140S provides the secure electrical and data connections necessary to integrate Ship Security Alert System (SSAS) hardware into the vessel's Iridium GMDSS network.

Key Product Features

• SSAS System Integration: Acts as the primary interface for connecting Lars Thrane SSAS alert and test buttons to the LT-3100S system.
• Multi-Channel Connectivity: Supports multiple wired inputs, enabling strategic placement of several covert alert buttons throughout the vessel.
• Marine-Grade Durability: Engineered by Lars Thrane to withstand the vibration, temperature fluctuations, and humidity of a professional maritime bridge environment.
• Seamless Communication: Ensures that high-priority security signals are accurately translated and transmitted via the Iridium satellite constellation with minimal latency.

System Role & Compatibility

The LT-3140S Interface Unit is a mandatory component for the following Lars Thrane configurations:

• Lars Thrane SSAS Kit (90-102072): Serves as the core processor for the included alert and test buttons.
• Distress Alert Expansion: Facilitates the connection of additional hardware used for Ship Security and GMDSS compliance.

What’s Included

The Lars Thrane 51-101814 is typically provided as a standalone interface unit for replacement or custom integration:

• 1x LT-3140S Interface Unit
• Installation documentation and connection pin-out guides

Installation & Usage

As a specialised maritime component, the Lars Thrane LT-3140S requires professional installation:

• Mounting: The unit should be mounted in a protected area near the LT-3100S control unit, ensuring it is accessible for wiring but protected from physical damage.
• Wiring: Connect the 50m cables from the Lars Thrane SSAS alert buttons directly to the input ports on the LT-3140S.
• Activation: Once installed, the SSAS functionality must be configured and tested through the main LT-3100S display to ensure the Lars Thrane system is communicating correctly with the Iridium network.

Product Information

• Product Category: Maritime Interface & Signalling Hardware
• Manufacturer: Lars Thrane A/S
• Model: LT-3140S Interface Unit
• SKU / Part Number: 51-101814 (Alternative Ref: 91-102099)
• Compatible System: Lars Thrane LT-3100S GMDSS
• Warranty: 12 Months