- 16 -Symbology identifierUser defined- User defined symbology identifier.- See "Data transmission settings - symbology identifier - UDSI" to activate ordeactivate UDSI transmission.- Use the default value or compose your custom symbology identifier for thissymbology (1 - 4 characters)B7 (*)Compose: Please refer to SCM (Software Configuration Manager) in CDCode mark- See "Data transmission settings - symbology identifier - code mark" toactivate or deactivate code mark transmission.- Use the default value or compose your code mark for this symbology (1character).D (*)Compose: Please refer to SCM (Software Configuration Manager) in CDStart / StopNot transmitted (*)a, b, c, d