- 81 - © 2018 unitech Electronics Co., Ltd. All rights reserved.unitech is a registered trademark of unitech Electronics Co., Ltd.MS282 User’s Manual3.7.5 I 2 of 5 Security LevelInterleaved 2 of 5 bar codes are vulnerable to misdecodes, particularlywhen I 2 of 5 Lengths is set to Any Length. The engine offers four levels ofdecode security for Interleaved 2 of 5 bar codes. There is an inverserelationship between security and engine aggressiveness. Increasing thelevel of security can reduce scanning aggressiveness, so select only thelevel of security necessary.•I 2 of 5 Security Level 0: The engine operates in its most aggressive state,while providing sufficient security in decodingmost in-spec bar codes.•I 2 of 5 Security Level 1: A bar code must be successfully read twice, andsatisfy certain safety requirements before beingdecoded. This default setting eliminates mostmisdecodes.•I 2 of 5 Security Level 2: This option applies greater bar code securityrequirements if Security Level 1 fails toeliminate misdecodes.•I 2 of 5 Security Level 3: If you selected Security Level 2, andmisdecodes still occur, select this security level.The highest safety requirements are applied. Abar code must be successfully read three timesbefore being decoded.Note: Selecting this option is an extreme measure against mis-decoding severelyout-of-spec bar codes, and significantly impairs the decoding ability of the engine. Ifthis level of security is required, try to improve the quality of the bar codes.
