BSN NAL Skylink Citadel Kit With Built-In Antenna, 300' (White) (SL6100-MAR-CIT-W-300)

BSN NAL Skylink Citadel Kit With Built-In Antenna, 300' (White) (SL6100-MAR-CIT-W-300)

In the SL6100-MAR-CIT-W-300 configuration, the kit is supplied with a 300-foot cable set and a white outer shell, and is typically described as a complete package including the dual-mode data gateway, Certus outdoor terminal/antenna, POTS telephony components, SOS switch/cabinet, junction box, and a battery backup system designed for maritime environments.

Design and Features

Low-profile “citadel” concept and discreet outdoor terminal

SkyLink Citadel is marketed as a compact outdoor unit intended to be mounted in a concealed or protected location to help reduce the risk of damage during a security incident. This “citadel” design focus is paired with an SOS switch that can quickly transmit distress messaging off-ship.

Dual-mode connectivity

The system supports dual-mode satellite and LTE communications, enabling operational flexibility in coastal coverage areas while retaining satellite continuity at sea.

Voice and messaging for shipboard use

SkyLink Citadel is specified to support two HD analog voice lines and also provides messaging and email communication from onboard devices (often described as via Wi-Fi access).

POTS telephone cabinet, SOS switch, and junction box

The Citadel kit includes a corded POTS telephone in a lockable cabinet (with dialing instructions inside), along with a junction box and an SOS line integrated into the overall wiring/cabling package.

Battery backup for continuity

A defining safety feature is the included battery backup system, described as providing 48–96 hours of battery life (depending on operating conditions and use), supporting continued communications even if external power is interrupted.

300-foot integrated cable system (SL6100-MAR-CIT-W-300)

The SL6100-MAR-CIT-W-300 kit specifically includes a 300' cable designed for shipboard routing between the outdoor terminal and internal cabinet/junction points. The brochure notes the cable is certified to IEC 60332-3, uses heavy-duty industrial metal turret connectors, and can carry Ethernet, DC voltage, SOS line, and RJ11 phone cable within the kit architecture.

Technology and Specifications

Satellite service and embedded terminal technology

SkyLink Citadel is built for Iridium Certus® 100 service and is listed as using an Iridium Certus 9770 module as the embedded technology in the terminal.

Electrical and environmental specifications

Published technical specifications for SkyLink Citadel include:

• Input / operating voltage: 10–34 VDC

• Power consumption: 7 W nominal / 18 W peak

• AC mains adapter: 115/230 VAC 50/60 Hz to 24 VDC (adapter provided)

• Operating temperature: −40°C to +70°C

• Exposure: Outdoor (per IEC 60945) (maritime-certified context)

Physical specifications (outdoor unit)

• Size: 14.2 × 7.3 × 6.2 in (36.1 × 18.5 × 15.7 cm)

• Weight: 3.8 lb (1.7 kg)

Iridium STL capability (optional positioning resilience)

SkyLink Citadel is described as Iridium STL® capable, positioned as a complement to GPS/GNSS in environments where GNSS can be challenged, with marketing language noting the STL signal is substantially stronger than typical GNSS signals.

Applications and Use Cases

Anti-piracy communications and emergency “citadel” operations

The core use case is maritime security: providing a hardened, rapidly activatable comms path to send SOS alerts and maintain voice/data connectivity if the vessel experiences an onboard security event.

Business continuity for remote voyages

For vessels operating far offshore, the system serves as a continuity communications terminal for ship-to-shore coordination, including voice calls and message/email exchange when terrestrial networks are unavailable.

Crew safety and high-value asset visibility

The kit’s emphasis on location reporting, SOS activation, and back-up communications supports crew welfare and operational oversight of high-value assets (vessels, cargo, and mission operations).

Maritime retrofits requiring long internal cable runs

The 300-foot cable variant is commonly selected when the outdoor terminal must be mounted at a distance (e.g., funnel/concealed exterior) while the telephone cabinet and internal access points are located deeper inside the vessel.

Advantages / Benefits

Purpose-built maritime resiliency

With outdoor exposure ratings aligned to IEC 60945 and a design optimized for shipboard installation, the system is tailored for salt-air exposure, vibration environments, and continuous maritime operations.

Integrated “complete kit” deployment

Unlike assembling a Certus terminal, phone equipment, power system, and cabling separately, SL6100-MAR-CIT-W-300 is packaged as a kit including the terminal/antenna, POTS cabinet, SOS wiring path, junction box, battery backup, and 300' cable—reducing integration risk and simplifying procurement.

Battery-backed SOS and communications continuity

A key operational advantage is the 48–96 hour battery backup window described for the system, enabling communications continuity even in adverse power scenarios.

Dual-mode satellite + LTE flexibility

Dual-mode connectivity provides a practical blend of nearshore LTE and offshore satellite service, while keeping Iridium Certus as the continuity backbone.

FAQ Section 

What is the BSN NAL SkyLink Citadel Kit (SL6100-MAR-CIT-W-300)?

It is a maritime communications and safety kit featuring an Iridium Certus outdoor terminal with built-in antenna, SOS switch, POTS phone cabinet, battery backup, and a 300' cable system in a white enclosure configuration.

How does the SkyLink Citadel Kit work?

The outdoor terminal connects to Iridium Certus service for voice and data, while the kit’s integrated cabling and cabinet/junction components provide internal access (POTS phone/SOS) and power distribution. A battery backup can keep the system operating if external power is interrupted.

Why is the SkyLink Citadel Kit important?

It is designed for maritime resiliency and anti-piracy workflows, enabling quick SOS messaging, continued communications, and battery-backed operations in remote environments where safety and continuity are critical.

What are the benefits of the SkyLink Citadel Kit with built-in antenna?

Key benefits include two HD analog voice lines, SOS switch, messaging/email, dual-mode satellite + LTE, 48–96 hour battery backup, and a 300' certified cable system designed for shipboard installation.

Summary

The BSN NAL SkyLink Citadel Kit With Built-In Antenna, 300' (White) (SL6100-MAR-CIT-W-300) is a specialized maritime anti-piracy and resiliency communications kit built around Iridium Certus® 100 connectivity, two analog voice lines, SOS alerting, messaging/email capability, and battery-backed continuity. By bundling an outdoor IEC 60945-context terminal/antenna assembly with a 300-foot shipboard cable system, lockable POTS cabinet, junction hardware, and backup power, it targets vessels that require discreet installation and dependable emergency communications in remote waters.