Motorola LS1203 - Manual (Page 152)

8 - 40 Symbol LS1203 Product Reference Guide
Set Lengths for MSI (continued)
MSI Check Digits
With MSI symbols, one check digit is mandatory and always verified by the reader. The second check digit is
optional. If the MSI codes include two check digits, scan the Two MSI Check Digits bar code to enable verification
of the second check digit.
See MSI Check Digit Algorithm on page 8-41 for the selection of second digit algorithms.
MSI - One Discrete Length
MSI - Two Discrete Lengths
MSI - Length Within Range
MSI - Any Length
*
One MSI Check Digit
Two MSI Check Digits