User's Manual
124 
9400 Mobile Computer Reference Manual 
Level 2  All barcodes must be successfully read twice before being 
decoded. 
Level 3  All barcodes except for the following barcodes must be 
successfully read twice before being decoded. 
BARCODE TYPES 
“EXCLUDED” 
CODE LENGTH 
MSI  4 characters of 
less 
Codabar  8 characters of 
less 
Discrete 25 (=Industrial 
25) 
8 characters of 
less 
Interleaved 25  8 characters of 
less 
Level 4  All barcodes must be successfully read three times before 
being decoded. 
Security Level 
Select a decode security level appropriate for the 
barcode quality when reading delta barcodes 
such as Code 128, Code 93, UPC/EAN. 
  Security Level 0 –
This default setting allows the 
scan engine to operate in its most aggressive 
state, providing sufficient security in decoding 
most “in-spec” barcodes. 
  Security Level 1 –
Select this option if 
misdecodes occur. This level should eliminate 
most misdecodes. 
  Security Level 2 –
Select this option if Security 
Level 1 fails to eliminate misdecodes. 
  Security Level 3 –
Select this option if Security 
Level 2 also fails to eliminate misdecodes. 
However, selecting this option impairs the 
decoding ability of the scan engine. If this level 
of security is necessary, try to improve the 
barcode quality. 
Level 1 
Decode Time-out  Set the maximum time for decoding to continue 
during a scan attempt. 
  5~99, in units of 0.1 second. 
9.9 sec. 
SYMBOLOGY SETTINGS TABLE 










