MagTek MT-211232 RS-232 1 OR 2 TRACK - Manual (Page 26)

MT-211 RS-232 Swipe Reader, 1 or 2 Tracks
18
READER TO HOST MESSAGE FORMAT
Figure 3-1 shows the format in which data is transmitted after a card is read successfully. Track
data is sent in the following order: SS, Track Data, ES.
<STX> <ESC> SS CARD DATA ES <CR> <ETX>
End of Text
Character (03
Hex) Optional.
Set Switch A8
to ON
Carriage Return
Character (OD Hex)
Optional. Set Switch B1
to ON.
End Sentinel Character
(ASCII “?”)
Card
Data in ASCII Track Order
(If an inquiry is sent but no card was
read, an ASCII "R" will be sent to
indicate ready.)
Start Sentinel Character.
(ASCII “%” for ISO Track 1)
(ASCII “;” for ISO Track 2)
Escape Character
(1B Hex) Optional.
Set Switch A7 to ON
Start of Text Character (02 Hex),
Optional. Set Switch A6 to ON.
Figure 3-1. Reader to Host Message - Successful Read
Figure 3-2 shows the data format transmitted after a card is read unsuccessfully. If an error is
detected, an E will be transmitted (if dual track, the error indicator for the higher density track
will be transmitted first).