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EA:  LIGHT_FUNCTION

Status: STD 2005/06/07
Code: 573
Concept definition: The function of a <LIGHT>.
 
Attribute value type: ENUMERATION
Reference type: IR
Reference: [FACC, Annex B: LFC]
Supplemental references:  
Enumerants (presented in a natural order)
Status Attribute label Enumerant label ▾ Concept definition Code Ref type Reference Supplemental references
STD
2005/06/07		 LIGHT_FUNCTION AEROLIGHT Established for aeronautical navigation and may be of higher power than marine <LIGHT>s and visible from well offshore; aerolight. 1 PR [S57A, Attribute, CATLIT:5]  
STD
2005/06/07		 LIGHT_FUNCTION AIR_OBSTRUCTION Marks an obstacle which constitutes a danger to air navigation; air obstruction. 2 PR [S57A, Attribute, CATLIT:6]  
STD
2005/06/07		 LIGHT_FUNCTION BEARING Enables its approximate bearing to be obtained without the use of a compass. 3 PR [S57A, Attribute, CATLIT:18]  
STD
2005/06/07		 LIGHT_FUNCTION DIRECTIONAL Illuminates a sector of very narrow angle and intended to mark a <DIRECTION> to follow; directional. 4 PR [S57A, Attribute, CATLIT:1]  
STD
2005/06/07		 LIGHT_FUNCTION EMERGENCY Available as a backup to a main <LIGHT> that will be illuminated should the main <LIGHT> fail; emergency. 5 PR [S57A, Attribute, CATLIT:17]  
STD
2005/06/07		 LIGHT_FUNCTION FLOOD A broad beam <LIGHT> used to illuminate a <STRUCTURE> or <TRACT>; flood. 6 IR [S57A, Attribute, CATLIT:8] [FACC, Annex B, LFC:8]
STD
2005/06/07		 LIGHT_FUNCTION FOG_DETECTOR Used to automatically determine conditions of visibility that warrant the turning on or off of a sound signal; fog detector. 7 PR [S57A, Attribute, CATLIT:7]  
STD
2005/06/07		 LIGHT_FUNCTION FRONT In a <NON_EMPTY_SET> of leading <LIGHT>s, describes the relative <LOCATION> of this <LIGHT> in the lead as being in front as viewed from seaward. 8 PR [S57A, Attribute, CATLIT:12]  
STD
2005/06/07		 LIGHT_FUNCTION FRONT_OR_LOWER <<<FRONT>>> and/or <<<LOWER>>>. 9 IR [FACC, Annex B, LFC:3]  
STD
2005/06/07		 LIGHT_FUNCTION LEADING Associated with other <LIGHT>s to form a <MARINE_LEADING_LIGHTS_LINE> to be followed. 10 IR [S57A, Attribute, CATLIT:4] [FACC, Annex B, LFC:4]
Group membership:

In addition to the status and date information for each entry, a colour coding scheme highlights the database holding to which an entry belongs. The following highlight colours are used:

  • white - the entry is in the standard
  • yellow - the entry has been added to the register
  • pink - the entry has been submitted for inclusion in the register, but it is not approved
  • cyan - a deprecated entry that was originally either in the standard or was added to the register, but has since been deprecated

The following icons are used to identify items that have figures, modifications and/or clarification notes:

  • F n - has Figures and, if more than one figure, n figures
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