Attribute: Signal group

Acronym: SIGGRP

Code: 141

Attribute type: A

Definition:

The number of signals, the combination of signals or the morse character(s) within one period of full sequence.

ENC Condition:

# Must be encoded for all LIGHTS objects, that are not fixed lights.

References:

INT 1: IP 10.2-9; IR 20, 22;

S-4: 453; 453.1-4; 471.2;

Indication:

The signal group of a light is encoded using brackets to separate the individual groups. A group of signals may be a single number, a chain of numbers separated by "+", a sequence of up to 4 letters or a letter and a number.

A fixed light has no signal group.

Where no specific signal group is given for one of the light characteristics, this should be shown by an empty pair of brackets.

Format:

(c)(c)...

Examples:





  

    Light characteristic
    SIGGRP Indication
  

  

    VQ(6)+LFl  
Fl+LFl(2+3) 

    
 Fl(2)+Lfl(3)

    
Ffl

    
Mo(AA)

    
AlFl(2W+1R)

    
AlLFlWR

    
FOcW

    
AlOc(4)WR

    (6)(1)
(1)(2+3)

    
(2)(3)

    
()(1)

    
(AA)

    
(2+1)

    
(2)

    
()(1)

    
(4)