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EA:  LIGHT_PATTERN

Status: STD 2005/06/07
Code: 576
Concept definition: The type of sequence, grouping, and/or distinctive character of a <LIGHT>; light pattern.
 
Attribute value type: ENUMERATION
Reference type: IR
Reference: [FACC, Annex B: CHA]
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_PATTERN QUICK_FLASH Rhythmic, exhibiting without interruption, very rapid regular alternations of light and darkness with a repetition rate of not less than 50 flashes per minute but less than 80 flashes per minute; quick flash. 31 PR [S57A, Attribute, LITCHR:4]  
STD
2005/06/07		 LIGHT_PATTERN QUICK_PLUS_LONG_FLASH Rhythmic, exhibiting without interruption, very rapid regular alternations of light and darkness with a repetition rate of not less than 50 flashes per minute but less than 80 flashes per minute, and all of the appearances of light are of equal duration excepting the final one, which is longer; quick-flash plus long-flash. 32 PR [S57A, Attribute, LITCHR:25]  
STD
2005/06/07		 LIGHT_PATTERN THREE_FIXED_HORIZONTAL Three fixed in a horizontal arrangement. 33 PR [S57A, Attribute, LITCHR:24]  
STD
2005/06/07		 LIGHT_PATTERN THREE_FIXED_VERTICAL Three fixed in a vertical arrangement. 34 PR [S57A, Attribute, LITCHR:23]  
STD
2005/06/07		 LIGHT_PATTERN TWO_FIXED_HORIZONTAL Two fixed in a horizontal arrangement. 35 PR [S57A, Attribute, LITCHR:22]  
STD
2005/06/07		 LIGHT_PATTERN TWO_FIXED_VERTICAL Two fixed in a vertical arrangement. 36 PR [S57A, Attribute, LITCHR:21]  
STD
2005/06/07		 LIGHT_PATTERN ULTRA_PLUS_LONG_FLASH <<<ULTRA_QUICK_FLASH>>>, and all of the appearances of light are of equal duration excepting the final one, which is longer; ultra quick-flash plus long-flash. 37 PR [S57A, Attribute, LITCHR:27]  
STD
2005/06/07		 LIGHT_PATTERN ULTRA_QUICK_FLASH Rhythmic, in which flashes are repeated at a rate of not less than 160 flashes per minute; ultra quick flash. 38 PR [S57A, Attribute, LITCHR:6]  
STD
2005/06/07		 LIGHT_PATTERN UNLIGHTED Unlighted. 39 IR [FACC, Annex B, CHA:23]  
STD
2005/06/07		 LIGHT_PATTERN VERY_QUICK_FLASH Rhythmic, in which flashes are repeated at a rate of not less than 80 flashes per minute but less than 160 flashes per minute; very quick flash. 40 PR [S57A, Attribute, LITCHR:5]  
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
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  • 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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