ITU R M 493:2009
ITU R M 493:2009 Digital Selective-calling System For Use In The Maritime Mobile Service
Table of Contents
ScopeAnnex1-Generalpurposeequipmentcharacteristics
1General
2Technicalformatofacallsequence
3Dotpatternandphasing
4Formatspecifier
5Address
Example:
6Category
7Self-identification
8Messages
9Endofsequence
10Error-checkcharacter
11Distressalertattempt
12Shipbornehumanmachineinterface(HMI)
Annex2-Equipmentclasses
1Equipmentclassesonlyapplytoshipborneequipment
2ClassrequirementsforB,DandEaregivenin
section3,4and5
3ClassB(MFand/orVHFonly)
4ClassD(VHFonly)
5ClassE(MFand/orHFonly)
Annex3-DesignexampleUserinterfaceforsimplified
operationofshipborneequipment
1General
2Definitions
3Controls
4Displayofmessagesinplainlanguage
5TransmissionofDSCmessages
Annex4-DesignexampleAutomatedproceduresforsimplified
operationinshipborneequipment
1General
2Definitions
3Tasksofautomatedprocedures