Panasonic JS-170FR Series Service Manual

Contents

2-44[Specification for Magnetic Card Control]Contents of magnetic card control specified for the PENTIUM POS(1) Connected to the keyboard connector.(2) ISO 7810 compatible. (Second track)(3) ID to be used is of the 5-bytes data with 0 included.(4) For reference: ID = B00012F7a. “B” is the front byte. (Start code)b. “00012” is an ID of the 5-byte data with 0 included.c. “F” is the end byte. (End code)d. “7” is a check byte.(5) Check byte calculationa) The header B is set in the binary data. (Result = 0bh)b) An exclusive OR is established with “0” of the front ID data. (Result = 0bh)c) An exclusive OR is established with “0” of the second ID data. (Result = 0bh)d) An exclusive OR is established with “0” of the third ID data. (Result = 0bh)e) An exclusive OR is established with “1” of the fourth ID data. (Result = 0ah)f) An exclusive OR is established with “2” of the fifth ID data. (Result = 08h)g) An exclusive OR is established with “F” of the end data. (Result = 07h)h) The above-mentioned result is compared with “7” for the check byte.

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Panasonic JS-170FR Series Service Manual

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