Worth Data 5000 TriCoder s Manuel du propriétaire télécharger pdf (Page 127)

Supplemental codes

The UPC standards include the addition of a 2 or 5-character supplemental

code as well as the Extended Coupon Code. To read the supplements, you

must first enable them using the RF Terminal Setup Menu.

NOTE: Enabling the supplements disallows the reading of UPC codes from

right to left to assure that the 2 and 5 digit supplements are not get missed. Coupon codes can be read from

right to left or left to right.

ISBN Specifications

ISBN (International Standard Book Numbering) bar codes are essentially EAN-13 with a 5 digit supplement,

where the first 3 digits are the Bookland country codes of 978 for books and 977 for periodicals. Although the

bar code contains 18 characters, the ISBN format uses only 9 of them, along with a newly calculated Mod-11

check digit. For example, a bar code containing the numbers 978055337062153495 would transmit as

0553370626 in the ISBN format.

The RF Terminal has the option of transmitting in the ISBN format.

ISBN 0-553-37062

ISBN specifications are available from:

American National Standards Institute

Customer Service

11 West 42

St.

New York, NY 10036

http://web.ansi.org

document ISO 2108:1992

The UPC/EAN checksum character

The last character in a UPC-A, UPC-E, UPC-E1, EAN-13 or EAN-8 bar code is the checksum. For

reference, these are the methods of calculation:

Checksum calculation for UPC-A, EAN-13 and EAN-8

• Use Worth Data's phone number (it's not a real UPC-A code) as sample data:

18314589938

• Assign even and odd positions, starting at the right and moving left:

8 3 9 9 8 5 4 1 3 8 1

odd even odd even odd even odd even odd even odd

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Worth Data 5000 TriCoder s Manuel du propriétaire Page 127