1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationShips and marine technology Guidelines for installation of ship communication network for shipboard equipment and systemsBS ISO 16425:2013National forewordThis British Standard i
2、s the UK implementation of ISO 16425:2013.The UK participation in its preparation was entrusted to Technical CommitteeEPL/80, Maritime navigation and radiocommunication equipment and systems.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publica
3、tion does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. The British Standards Institution 2013Published by BSI Standards Limited 2013ISBN 978 0 580 71875 5ICS 47.020.70Compliance with a British Standard cannot confer immunity fro
4、mlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 28 February 2013.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS ISO 16425:2013 ISO 2013Ships and marine technology Guidelines for the installa
5、tion of ship communication networks for shipboard equipment and systemsNavires et technologie maritime Lignes directrices pour linstallation de rseaux de communication des navires pour les quipements et systmes embarqusINTERNATIONAL STANDARDISO16425First edition2013-02-01Reference numberISO 16425:20
6、13(E)BS ISO 16425:2013ISO 16425:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and micr
7、ofilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 16425:201
8、3ISO 16425:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Abbreviations. 35 Network system architecture 35.1 Network system design . 35.2 Network interface for shipboard equipment and systems . 55.3 Equipm
9、ent constituting communication network system 66 Data requirements . 86.1 General . 86.2 Meaning of data and description of structure 86.3 Data attribute definitions . 106.4 Data delivery format . 117 Network administration requirements .127.1 Network administration requirements and definitions .127
10、.2 Network administration scope 127.3 Network administration items . 137.4 Requirements for network monitoring devices 137.5 Requirements for network nodes 148 Operational guidelines 158.1 Notes for network operations . 158.2 Notes for exchanging data 168.3 System maintenance . 179 Installation proc
11、edure .179.1 General 179.2 Network installation procedure 179.3 Cabling procedure for network cables 219.4 Network testing procedure . 2210 Testing 2410.1 General 2410.2 Testing procedure 2410.3 Network device connection testing 2510.4 Inter-node connection testing 2610.5 Testing of network monitori
12、ng devices and functionality .26Annex A (informative) Implementation of the content provided in this International Standard .28Bibliography .61BS ISO 16425:2013ISO 16425:2013(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS
13、O member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, gove
14、rnmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC D
15、irectives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member b
16、odies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 16425 was prepared by Technical Committee ISO/TC 8, Ships and marine technolo
17、gy, Subcommittee SC 6, Navigation and ship operations.iv ISO 2013 All rights reservedBS ISO 16425:2013ISO 16425:2013(E)IntroductionThis International Standard gives guidelines relating to such matters as the communication network-system architecture, data requirements, administration, operation, com
18、missioning, inspection and testing.This International Standard also takes into account differences between shipboard communication networks and networks that are used outside of ships, and stipulates requirements and the like in clauses relating to matters unique to shipboard use.Until now, there ha
19、ve not been comprehensive guidelines for connecting devices provided by many different manufacturers to a network via generic means, and this has impeded the wider use of shipboard networks.This International Standard will make it possible to provide guidelines for all aspects of communication netwo
20、rk-system design, commissioning, inspection, testing and operation, and improve convenience to all involved parties, including manufacturers, engineering firms, shipbuilders, and shipping companies.This communication network for shipboard equipment connects equipment, and shares information gathered
21、 from shipboard equipment and systems via a network. This communication network is connected to the navigational equipment network and engine-control network via an appropriate gateway.The independence of such a network is ensured by using a gateway.This network is intended for information sharing a
22、nd is not directly related to safety of navigation. Also, it is not a system targeted for classification rules.Additionally, Annex A is attached to provide detailed examples of technical information that serve as guidelines for some difficulties caused when the information network system is designed
23、.NOTE Requirements for wireless communication systems, which serve as an effective method of onboard wireless communication, is specified in IEEE 802.11, and national laws are established based on the aforementioned IEEE in each country. Different frequency and output range are allotted by each coun
24、try, and regulations exist for such frequencies and ranges in some countries. Given the circumstances, it is possible that wireless communication systems cannot be used when calling at a port. Therefore, wireless communication systems are outside the scope of this International Standard. ISO 2013 Al
25、l rights reserved vBS ISO 16425:2013Ships and marine technology Guidelines for the installation of ship communication networks for shipboard equipment and systems1 ScopeThis International Standard specifies installation guidelines for ship communication networks for improving communication for shipb
26、oard equipment and systems that are independent from navigational equipment networks and engine-control networks.This International Standard utilizes existing standards relating to protocols, and provides new guidelines for such aspects as communication network-system architecture, administration, o
27、peration, and installation.The new guidelines specifically include: redundancy if necessary for a shipboard communication network system; network administration that does not require experts; physical as well as logical security; and network installation.2 Normative referencesThe following documents
28、, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.IEC 61162-450, Maritime navigat
29、ion and radio communication equipment and systems Digital interfaces Part 450: Multiple talkers and multiple listeners Ethernet interconnectionIEEE 802.3, Ethernet (Formerly: Carrier Sense Multiple Access with Collision Detection)3 Terms and definitionsFor the purposes of this document, the followin
30、g terms and definitions apply.3.1networkcommunication network restricted in scope to a ship3.2XMLeXtensible Markup Languagemeta language for sending and receiving data via a network that is recommended by the WWW Consortium3.3gatewaycommunication device that connects computer networks to networks wi
31、th differing protocols3.4collision domaindomain in a computer network where simultaneous transmission will cause collisions or congestion3.5broadcast domaindomain on a computer network where broadcasted frames (broadcasts) are receivedINTERNATIONAL STANDARD ISO 16425:2013(E) ISO 2013 All rights rese
32、rved 1BS ISO 16425:2013ISO 16425:2013(E)3.6STPspanning tree protocolmethod of control in a loop topology network for preventing data from entering endless loops3.7IPinternet protocolprotocol for sending and receiving information via the Internet3.8OSI reference modelOpen Systems Interconnection refe
33、rence modelmodel that divides the communication functions stipulated for computers by the International Organization for Standardization into layers3.9SNMPSimple Network Management Protocolcommunication rules that define methods for communicating information in order to monitor and control network d
34、evices on network3.10ICMPInternet Control Message Protocolcommunication rules that are used for such purposes as notifications of errors in the processing of datagrams, and notifications of information relating to communication3.11MIBManagement Information Basetype of database for managing devices i
35、n a network3.12port trunkmethod of raising transmission speed by governing two or more physical cables3.13VLANVirtual LANmethod for configuring a network virtually, regardless of the physical network configuration2 ISO 2013 All rights reservedBS ISO 16425:2013ISO 16425:2013(E)4 AbbreviationsUTC Univ
36、ersal Time, CoordinatedRSTP Rapid Spanning Tree ProtocolCSMA/CD Carrier Sense Multiple Access/Collision DetectionQoS Quality of serviceRIP Routing information protocolOSPF Open shortest path firstCD Compact DiscDVD Digital Versatile DiscECR Engine Control RoomBR BridgeRM RoomGEN GeneralE/R Engine Ro
37、omC/R Control RoomIGMP Internet Group Management ProtocolASCII American Standard Code for Information InterchangeMAC Media Access ControlVPN Virtual Private NetworkFTP File Transfer ProtocolHTTP HyperText Transfer ProtocolHTTPS HyperText Transfer Protocol over Secure Socket LayerUTP Unshield Twisted
38、 Pair5 Network system architecture5.1 Network system designThe design of this network system shall give due consideration to such matters as the compatibility of the various devices in the network as a whole, and data transmission (amount of information, latency, and routes). Consequently, a network
39、-system designer should have a grasp of the overall system, comprehensive knowledge, and consideration for shipboard use.When designing the network system, the effective data volume and network load factor should be pre-calculated when the network media are under maximum load. In addition, provision
40、 should be made for further network expansion and increase of the data traffic. ISO 2013 All rights reserved 3BS ISO 16425:2013ISO 16425:2013(E)The design shall also foresee the various potential system states, including initial state, failure state, and normal state, in order to define which commun
41、ication is to be granted in various failure scenarios.The network diagrams shall be equipped on the vessel. When the network design is changed, the network-system designer shall retest the network and update the network diagrams.As a data requirement, it is extremely vital to consider such factors a
42、nd to prevent ship equipment connected to the network that does not send or receive data from being excessively impacted.Data requirements are specified in 6.2 and 6.3.5.1.1 Scope of network system architectureThis network system shall be designed specifically for ships, with the purpose of sharing
43、information between shipboard devices. It shall be independent from navigational equipment networks and engine-control networks.The scope of the network systems architecture is not limited to the bridge. It extends to all key locations on the ship.The network shall not operate (control) the ships na
44、vigational equipment, however it should allow monitoring of navigational equipment.Figure 1 shows a sample network-architecture scope. The typical implementation of the contents provided in this International Standard is specified in Annex A.NOTE The following are some examples of areas within the s
45、cope of the network-system architecture:-Navigation Bridge / Control Centre;-Captains Office;-Officers Office;-Officers Mess;-Captains Cabin;-Officers Day Room;-Engine Control Room;-Engine Room;-Cargo Control Room;-Field / Cargo.5.1.2 Network system separationThe network system shall be separated fr
46、om other networks by an L3 switch so that it will not be adversely affected by failures on other networks. The routing and filtering rules should be configured appropriately on the L3 switch for traffic and security. For more advanced security, a firewall for the upper layer may be used.5.1.3 Networ
47、k divisionThe network shall be divided into sub-networks (the broadcast domains) depending on the types of information handled, in order to control traffic and ensure security. In order to ensure the security and the control of traffic, the network shall be logically segregated to form sub-networks,
48、 depending on the 4 ISO 2013 All rights reservedBS ISO 16425:2013ISO 16425:2013(E)type of information to be handled. Each network should be designed so that network soundness can be maintained at all times, including when failures occur on other sub-networks.NOTE The following are some examples of s
49、ub-networks formed from the main network:-Navigational data collection sub-network;-Engine data collection sub-network;-Shipboard telephone sub-network;-Imaging sub-network;-General shipboard document-review sub-network.5.1.4 Traffic divisionThe network shall be built to minimize the collision domain (the scope of packet collisions), and appropriately divide the broadcast domain (the domain reached by broadcasts).The bandwidth used by the core network shall be designed appropriately, and a logical network system sh
