User manual

The breakdown of the row checksum:

The breakdown of the block checksum:

The top line checksum is the 6 at the end of the line. While this example shows

the checksum at the end of the line, it may appear anywhere on the line and

then protects all the characters to its left. The following sum is generated to ver-

ify a proper checksum on line 1:

6DCBA

(1x6) + (3x13) + (1x12) + (3x11) + (1x10) = 100

Note that the 13 weight scheme starts with a 1 on the checksum digit, and then

alternates between a 1 and 3 for all digits to the left of the checksum, up to the

first character on the line. The numerical values of the alphabetic characters

range from 10 for an 'A' to a 35 for a 'Z.’ The sum of 100 is a multiple of 10, so

the mod 10 checksum here has passed. On line 2, the row checksum is the 5

following the G. Verify its line by generating its sum:

D85 Description

1 Weight Scheme: 13 (see Checksum Table‚ page 15)

0 Checksum Type: Row (see Checksum Table‚ page

15)

0 Translation of the sum to binary code

DFF Description

1 Weight Scheme: 137 (see Checksum Table‚ page

15)

1 Checksum Type: Block (see Checksum Table‚ page

15)

1 Translation of the sum to binary code