- 100 - © 2020 unitech Electronics Co., Ltd. All rights reserved.unitech is a registered trademark of unitech Electronics Co., Ltd.MS852B Plus User’s Manual3.2.13.3 EAN/JAN-13 AddendaThis selection adds 2 or 5 digits to the end of all scanned EAN/JAN-13 data.Default = Off for both 2 Digit and 5 Digit Addenda.3.2.13.4 EAN/JAN-13 Addenda RequiredWhen Required is scanned, the scanner will only read EAN/JAN-13 bar codesthat have addenda. Default = Not Required.Not Required*Required2 Digit Addenda Off*2 Digit Addenda On5 Digit Addenda Off*5 Digit Addenda On