General Information

Purpose and Scope

The software of the electronic chart display and information system (NSR ECDIS NES-3000) is designed for:

  • Voyage planning

  • Calculation and display of current voyage parameters relative to planned values

  • Generation of messages, warnings and alarms when conditions specified by ECDIS standards are met

  • Analysis of completed voyages

  • Collection management of electronic navigational charts (ENC)

  • Operation as part of an integrated navigational bridge system

Note

NSR ECDIS NES-3000 provides a comprehensive solution for navigation and maritime safety in accordance with international standards.

Limitations and Recommendations

Note

The International Hydrographic Organization notes that any navigational chart adequately reflects the navigational and hydrographic conditions only at the time the hydrographic survey was conducted.

Due to the high variability of seabed topography in coastal zones, narrow channels, areas of intense river run-off, as well as the influence of wind-driven and tidal phenomena, depths may differ from those indicated on the chart.

Key limitations when operating ECDIS

1. Reduced accuracy near coasts and structures

When navigating in waters near high coastlines or artificial structures, GNSS fix accuracy may be significantly reduced due to deterioration of the geometric dilution of precision (GDOP), caused by the inability to observe some satellites.

Warning

In some cases, a differential correction may degrade the result of the vessel’s position determination.

NSR ECDIS NES-3000 software automatically monitors the quality of the geometric dilution of precision based on GNSS receiver data and generates a warning signal when the limit value of the integral geometric factor is exceeded.

2. GNSS signal degradation

Due to the low signal-to-noise ratio at the GNSS antenna input, cases of signal degradation have been observed while the GNSS receiver continues to output a valid fix flag.

This manifests as:

  • Displacement of the vessel’s position plotted on the ENC

  • Visual drift of the vessel under the influence of current

Tip

SN Circular 255, issued by the IHO, recommends overlaying the radar image on the electronic chart for timely detection of such situations.

3. Recommendations when navigating along leading lines

When navigating along leading lines, it is recommended to always compare the plotted position with the leading lines shown on the electronic chart, which allows timely detection of unstable GNSS performance.

4. Specifics of operation during turning manoeuvres

GNSS receivers have a function for filtering random outliers of navigational parameters over a series of measurements, which improves the quality of coordinate and speed-over-ground vector computation when sailing on a steady course.

Important

During a turning manoeuvre, the vessel’s heading changes significantly faster than the course over ground (COG), which is the direction of the velocity vector produced by the GNSS receiver.

For this reason, the results of automatic ECDIS monitoring of charted hazards during a turning manoeuvre should be treated with caution, since ENC scanning is performed in a strip or sector ahead of the vessel in the direction of the COG, and with a narrow sector part of the water area may remain outside the monitored zone.

Recommendations for monitoring the vessel’s position

In the cases described above, for monitoring the vessel’s position relative to navigational hazards and in fairways, use:

  • Aids to navigation (ATON)

  • Navigational Radar

  • Do not rely solely on ECDIS readings

Important

NSR ECDIS NES-3000 ensures correct operation and display of ENCs in the latitude range from 85°N to 85°S.

Regulatory Framework

NSR ECDIS NES-3000 software has been developed in accordance with the requirements of the following regulatory documents:

International Hydrographic Organization (IHO)

  • IHO S-57/3.1.3 (2014) – Transfer standard for digital hydrographic data, supplement 3

  • IHO S-57, appendix B.1 – ENC product specification

  • IHO S-57, appendix B.1, annex A (2018) – Use of the object catalogue for ENC

  • IHO S-52:2014 – Specifications for chart content and display aspects of ECDIS edition 6.1

  • IHO S-52, appendix 1:2012 – Guidance on Updating the Electronic Navigational Chart edition 4.0

  • S-52 Annex A – IHO ECDIS Presentation Library Edition 4.0(.3) – October 2014 (With Clarifications up to December 2020)

  • IHO S-63 (2020) – IHO data protection scheme, Edition 1.2.1

  • IHO S-64 (2020) – Test data sets in ECDIS, Edition 3.0(.3)

International Maritime Organization (IMO)

  • IMO MSC.232 (82):2006 – Revised Performance standards for electronic chart display and information systems (ECDIS)

  • IMO SN.1/Circ.266:2007 – Maintenance of electronic chart display and information system (ECDIS) software

  • SN.1/Circ.243/Rev/2:2019 – Guidelines for the presentation of navigation-related symbols, terms and abbreviations

  • MSC.1/Circ.1609:2019 – Guidelines for the standardization of user interface design for navigation equipment

  • IMO A.694 (17):1991 – General requirements for shipborne radio equipment forming part of the global maritime distress and safety system (GMDSS) and for electronic navigational aids

  • IMO MSC/Circ.982:2000 – Guidelines on ergonomic criteria for bridge equipment and layout

International Electrotechnical Commission (IEC)

  • IEC 61174:2015 (edition 4.0) – Maritime navigation and radiocommunication equipment and systems – Electronic chart display and information systems – Operational and performance requirements, methods of testing and required test results

  • IEC 62288:2024 (edition 3.1) – Maritime navigation and radiocommunication equipment and systems – Presentation of navigation-related information on shipborne navigational displays – General requirements – Methods of testing and required test results

  • IEC 60945 - Maritime navigation and radiocommunication equipment and systems – General requirements – Methods of testing and required test results

  • IEC 61162-1 (Edition 6.0, 2024) – Maritime navigation and radiocommunication equipment and systems – Digital interfaces – Part 1: Single talker and multiple listeners

  • IEC 61162-3 (Edition 1.2, 2014-07) – Maritime navigation and radiocommunication equipment and systems – Digital interfaces – Part 3: Serial data instrument network

  • IEC 61162-450:2024-04 (Edition 3.0) – Maritime navigation and radiocommunication equipment and systems – Digital interfaces – Part 450: Multiple talker and multiple listeners – Ethernet interconnection

  • IEC 61162-460:2024-04 (Edition 3.0) – Maritime navigation and radiocommunication equipment and systems – Digital interfaces – Part 460: Multiple talker and multiple listeners – Ethernet interconnection – Safety and security

  • IEC 61996-1:2013 – Maritime navigation and radiocommunication equipment and systems – Shipborne voyage data recorder (VDR) – Part 1: Performance requirements, methods of testing and required test results

  • IEC 62923-1 (Edition 1.0, 2018-08) – Maritime navigation and radiocommunication equipment and systems – Bridge alert management – Part 1: Operational and performance requirements, methods of testing and required test results

  • IEC 62923-2 (Edition 1.0, 2018-08) – Maritime navigation and radiocommunication equipment and systems – Bridge alert management – Part 2: Alert and cluster identifiers and other additional features

International Organization for Standardization (ISO)

  • ISO 8601 – Data elements and interchange formats – Information interchange – Representation of dates and times

Note

All listed standards and recommendations ensure NSR ECDIS NES-3000 compliance with international maritime safety requirements and technical standards.

Removable Media Preparation

Removable media is used for:

  • Installing certificates and licenses

  • Base ENC sets and their updates

  • Routes in RTZ exchange format

  • Recording any available information from ECDIS

Tip

For correct operation with removable media, the software manufacturer recommends dedicating a separate medium or multiple media to be used exclusively for these purposes.

Important

ECDIS supports operation with removable media formatted with the FAT32 file system.

Formatting Requirements

Any newly purchased removable media must be formatted to FAT32 before use.

Warning

Formatting media is recommended to be performed using specialized software. Formatting media with default system utilities is not recommended.

FAT32 File System Limitations

When selecting a medium, consider the following limitations of the FAT32 file system:

Media Size

  • Maximum size of a removable medium that can be formatted under the Windows operating system must not exceed 32 GB

File Size

  • Maximum file size that can be written to a removable medium formatted as FAT32 must not exceed 4 GB

Note

These limitations are related to the nature of the FAT32 file system and do not depend on ECDIS capabilities.

Manufacturer Declarations for NSR ECDIS NES-3000 Software

The NSR ECDIS NES-3000 software implements the requirements and principles in accordance with IEC 61162-460:2024-04, Ed. 3.0, with respect to Node-460, where applicable.

Safety Standard Compliance

Network Traffic Requirements

Important

Reference: 5.1. IEC 61162-460:2024-04, Ed. 3.0

NSR ECDIS NES-3000 software does not generate traffic that does not comply with the requirements of IEC 61162-450 Ed. 3.0.

NSR ECDIS NES-3000 software ignores data that does not conform to the supported format.

Important

Reference: 6.2.2.1. IEC 61162-460:2024-04, Ed. 3.0

NSR ECDIS NES-3000 software maximum inbound and outbound traffic bandwidth is 100 Mbit/s.

No Hidden Access

Important

Reference: 6.1.2. IEC 61162-460:2024-04, Ed. 3.0

NSR ECDIS NES-3000 software does not contain functions for:

  • Hidden remote access

  • Hidden undeclared access to the software, computer resources, or the system as a whole

Wireless Interface Restrictions

Important

Reference: 6.2.1. IEC 61162-460:2024-04, Ed. 3.0

NSR ECDIS NES-3000 software does not use wireless local area network interfaces. The NSR ECDIS NES-3000 software does not include a wireless access point function.

Safety of Removable Media Operations

Important

Reference: 6.2.3.3. IEC 61162-460:2024-04, Ed. 3.0

NSR ECDIS NES-3000 software reads data from removable media (REDS) only in permitted and agreed formats.

Data not intended for loading into NSR ECDIS NES-3000 software is ignored.

NSR ECDIS NES-3000 software excludes: automatic mounting of removable media, automatic opening of removable media, and the ability to execute files from removable media at the operating system level.

Access to Functions

Important

Reference: 6.2.4.1. IEC 61162-460:2024-04, Ed. 3.0

In NSR ECDIS NES-3000 software, configuration changes are only possible in elevated privilege user modes.

Password generation rules are described in the section System Information.

Documentation

Important

Reference: 6.2.6. IEC 61162-460:2024-04, Ed. 3.0

NSR ECDIS NES-3000 software documents all user actions

Excluded Security Functions

NSR ECDIS NES-3000 software excludes:

  • Automatic mounting of removable media

  • Automatic opening of removable media

  • Ability to execute files from removable media at the operating system level