Record format (F2F)

This record format is mainly used by organizations who started to use an automatic ticket checker from 1990s. Recordable data is large than the NRZ-1 format. Because a record density is going up, it's difficult to analysis in a naked eye(I expand and analyze with scanned image on a screen).

Edmondson ticket

Read the data in the direction of the long side. If an interval of a vertical line is 0.25mm, it means "1". If an interval of a vertical line is 0.5mm, it means "0".

Edmondson ticket (F2F)
Edmondson ticket (F2F)

The above figure is different from actual data, because data is "0" except preamble/postamble (Checksum is not calculated). Moreover, the blue and red line is added in order to be easy to see a bit position.

Recorded data on each tracks is as follows.

Track A
BitContentsNotes
1-4PreambleIt means a start of data. The content is "1111"
5-20End of effective date (month and day)Month, day (tenths place), day (ones place)
21-36Origin stationLine, station
37-46Sections of origin station
47-62Transfer stationLine, station
63-72Sections of transfer station
73-76Ticket type
77-80Checksum
81-84PostambleIt means an end of data. The content is "0111"
Track B
BitContentsNotes
15-18PreambleIt means a start of data. The content is "1111"
19-30Start of effective date/Boarding dateMonth, day (tenths place), day (ones place)
31-46Boarding station code
47-58Boarding date
59-62Reserved
63-66Entering/Exiting code
67-70Checksum
71-74PostambleIt means an end of data. The content is "0111"
Track C
BitContentsNotes
1-4PreambleIt means a start of data. The content is "1111"
5-20via 1Line, Station
21-36via 2Line, Station
37-52via 3Line, Station
53-68via 4Line, Station
69-76Ticket type
77-80Checksum
81-84PostambleIt means an end of data. The content is "0111"

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