PAS 61162-102:2003 pdf download Maritime navigation and radiocommunication equipment and systems – Digital interfaces – Part 102: Single talker and multiple listeners – Extra requirements to IEC 61162-1 for the Voyage Data Recorder
Scope
The lEC 61162-1 standard includes 4 sentence formatters for handling alarm and transducerstatus data. These were originally developed to handle the data required by navigation andradiocommunications equipment and multiple alarm systems were not envisaged.
The introduction of the Voyage Data Recorder (VDR) has necessitated the interfacing toengine, cargo and deck monitoring systems. In particular the interface to multi-point fire alarmsystems presents problems du to the large number of sensors and the need to identifyspecific sources ofincoming messages.
The lEC 61162-102 is the specified interface to the VDR and to permit identification of data aseries of specific sentences has been developed.
Whilst the facilities included in the lEC 61162-4 series may be utilised to handle the mostcomplex systems, these are not in general use and probably unlikely on smaller vessels. TheVDR has to be applied with immediate effect to a range of vessels and there does not appearto be any alternative standard available to meet the requirement.
NOTE This document defines sentences and parameters useful for the VDR and associated systems. Thesentences and parameters extend in some cases beyond the minimum requirement for the VDR.
2 Normative references
The following referenced documents are indispensable for the application of this documentFor dated references, only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies
The references contained in IEC 61162-1 apply to this PAS. In addition the following apply :
IEC 61996:2000(E) Maritime navigation and radiocommunication equipment and systems -Shipborne voyage data recorders (VDR) – Performance requirements – Methods of testingand required test results
IMO A.830(19) Code on Alarms and Indicators.1995
IMO SOLAS Convention,Chapter V,(2002)
IMO HSC Code,Chapter 13.
IMO A.861 (20):1997, Performance standards for shipborne voyage data recorders (VDRs)
3 Definitions
3.1
alarm
denotes a condition that has to be recognised, or acted upon immediately, e.g. depth minimum limit exceeded, anchor deep
3.2
diagnostic
usually denotes a failure, or warning of deterioration in a system, e.g. engine sensor malfunction
3.3
event
is used to log a condition that has occurred and /or [track the operation of some condition].
Events are [normally] defined, e.g. transfer of control to the bridge
3.4
fault
is a technical problem in one of the system components that will reduce the availability, or future availability, of some or all functions
3.5
warning
is similar to ALARM but need not be acted upon immediately
4 Data requirements of the VDR (from IMO A.861)
Date and time
Ship’s position
Speed
Heading
Bridge Audio
Communications audio
Radar data, post-display selection
Echo-sounder
Main alarms
Rudder order and response
Engine order and response
Hull openings status
Watertight and fire door status
Accelerations and hull stresses
Wind speed and direction