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Sleipner

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Sleipner S-LINK GW-1 Interface

Designed for integration, the Sleipner S-LINK GW-1 interface is an NMEA2000®-certified gateway that connects CAN bus NMEA2000® devices to the S-Link network. It enables communication between various devices such as GPS, engines, and autopilots, and your Sleipner system, powering directly from the S-Link bus. Supplied as a single unit, no accessories included.

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401,81€

401,81€ ~~431,12€~~

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Available to order

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

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Installers near you

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Support service

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Technical specifications

Product use	Bridge to connect NMEA2000® equipment and NMEA0183 GPS antennas to the S-Link bus.
NMEA 2000 compatible	Oui
NMEA 2000 Load Equivalency Number (LEN)	1 LEN
Operating voltage range	8-31 V DC
Ingress protection	IP65
Operating temperature range	-15°C to +55°C
Weight	0.2
Communication protocol	NMEA 2000,S-Link,NMEA0183
Document Id Reference	3057
Document Revision Number	13
Manual Language	EN
Manual Publication Year	2025
Nmea0183 Version Support	3.01 and above

Detailed description

The Sleipner S-LINK GW-1 interface is an NMEA2000®-certified device designed to integrate CAN bus NMEA2000® equipment into a vessel’s S-Link network. It enables seamless communication between various marine electronic systems, such as joystick controls, GPS antennas, engine systems, and autopilots, with Sleipner-compatible thrusters and other equipment.

NMEA2000® CAN Connectivity

Equipped with an M12 male connector, the GW-1 interface provides NMEA2000® connectivity. This module does not supply power to the CAN bus; connected devices must be powered separately. Termination resistors are required on the CAN bus as they are not integrated into the GW-1 output. The CAN-L and CAN-H lines are galvanically isolated to prevent interference. Standard micro NMEA2000® cables must be used for this connection.

NMEA0183 Interface for GPS

The S-LINK GW-1 also includes a dedicated NMEA0183 interface for GPS antennas. It supports baud rates of 4800 and 38400, which are configured automatically. This interface is compatible with $GxRMC sentences from all positioning systems. The V OUT pin can power a single GPS antenna with a maximum current of 100mA, protected by an internal fuse. The V OUT voltage matches the S-Link bus voltage.

Advanced GNSS Data Management

The GW-1 gateway system includes a GNSS antenna signal prioritization function. The priority sequence is as follows: NMEA0183 with a 100ms refresh rate, followed by NMEA2000®, then NMEA0183 with a 1000ms refresh rate. If multiple antennas are present on the NMEA2000® bus, the GW-1 will transmit only one GPS signal to the S-Link. With multiple GW-1 units featuring GNSS signals, the GW-1 units will prioritize the antenna type according to the list, and only one GW-1 will broadcast GNSS signals on the S-Link bus. This feature requires firmware V1.021 or later.

Power and Technical Specifications

The Sleipner S-LINK GW-1 interface is powered directly from the S-Link bus, eliminating the need for an external power source. It operates within a voltage range of 8 to 31 V DC and weighs 0.2 kg. The system supports various NMEA2000® PGNs, including GPS position data (129025, 129026, 126992, 129029), engine parameters (127488), transmission (127493), vessel heading (127250), rudder (127245), and detailed DC status (127506).

Documentation

Type	Nom
	EN - Sleipner S-Link Gateway installation manual
	Documentation Sleipner — INTERFACE S-LINK

Expert opinion

« S-LINK GW-1 Bridge: NMEA 2000® integration for Sleipner systems »

The Sleipner S-LINK GW-1 interface is a strategic bridge for any navigation system looking to integrate NMEA2000® equipment into the Sleipner S-Link ecosystem. Its primary function is to consolidate essential data from NMEA2000® sources—such as GPS information, engine parameters, or autopilot data—and make it accessible to thrusters and other accessories controlled by S-Link. This enables improved synergy between onboard components, optimizing command responsiveness and manoeuvring precision.

In terms of installation, the GW-1 stands out for its simplicity. Powered directly from the S-Link bus, it requires no dedicated power connection, reducing wiring and potential failure points. The galvanic isolation of the CAN and NMEA0183 interfaces is a major reliability asset in marine environments, protecting systems from ground loops and voltage spikes. However, it is critical to include external termination resistors for the NMEA2000® CAN bus, as they are not built into the module. This component is therefore a relevant choice for integrators seeking to expand the capabilities of their S-Link network with existing or future NMEA2000®-compliant equipment.

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Sleipner S-LINK GW-1 Interface

401,81€

401,81€ ~~431,12€~~

Frequently Asked Questions

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What is the Sleipner S-LINK GW-1 interface used for?

The Sleipner S-LINK GW-1 interface is a certified NMEA2000® gateway designed to connect devices using the NMEA2000® CAN bus to Sleipner’s S-Link bus. It enables integration and communication between these two systems.

Which types of communication networks can the GW-1 interface connect to?

The GW-1 interface is primarily designed to connect:

The NMEA 2000® CAN bus, enabling integration of equipment such as engine systems, GNSS antennas, joystick controls, DP systems, and autopilots.The Sleipner S-Link bus, which is the proprietary communication network for Sleipner thrusters and other accessories.

Does the GW-1 interface require an external power supply?

No, the GW-1 interface is powered directly by the S-Link bus. No additional external power supply is required for its operation.

Do I need to add termination resistors on the NMEA 2000 CAN bus connected to the GW-1?

Yes, terminating resistors are required on the NMEA 2000 CAN bus. The GW-1 interface does not include a terminating resistor on its M12 male connector output, so it is essential to ensure the CAN bus is properly terminated according to NMEA 2000® specifications.

Can the GW-1 interface connect to an NMEA 0183 GPS antenna?

Yes, the GW-1 interface has a dedicated NMEA 0183 connection. It can power a single NMEA 0183 GPS antenna with a maximum of 100mA (protected by an internal fuse). Baud rates of 4800 and 38400 are supported and are detected automatically. It handles $GxRMC sentences from all positioning systems.

How does the GW-1 interface manage priority between multiple GNSS signal sources?

The GW-1 interface follows a prioritization sequence for GNSS signals to determine the source to use:

NMEA 0183 antennas with a 100 ms refresh rate. NMEA 2000® sources. NMEA 0183 antennas with a 1000 ms refresh rate. If multiple NMEA 2000® antennas are present, the GW-1 will transmit only one GPS signal to the S-link. If multiple GW-1 interfaces receive GNSS signals, they will prioritize the antenna type according to this list, and only one GW-1 will broadcast the GNSS signals on the S-link bus (requires GW-1 firmware V1.021 or later).

What type of cable is required to connect the GW-1 interface to the NMEA 2000 network?

To connect the GW-1 interface to your NMEA 2000® network, you must use a standard NMEA 2000® micro cable. Sleipner Motor AS does not supply these cables.