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Unsuccessful card read, Successful card read, Figure 3-1. successful card read – MagTek MT-215232 RS-232 User Manual

Page 21

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Section 3. Commands, Formats, and Timing


15

Unsuccessful Card Read

ERROR

USER DRIVER
STATUS

CARD SENSOR
STATUS

End of Text

Character,

(03 Hex)

Optional.

Set SWA # 8

to ON


Carriage

Return

Character (OD Hex)

Optional.

Set

SWB

#1

to ON.


ASCII “0” = No Card is in the Reader

ASCII

“1”

=

Card

present

in

the

Reader


ASCII”0” = Drivers 1 and 2 OFF

ASCII”1”

=

Driver

1

ON

ASCII”2”

=

Driver

2

ON

ASCII”3” = Drivers 1 and 2 ON

Set

SWB

#3

ON


ASCII “E” represents error. If both tracks fail

on a dual track reader, an “EE” will be transmitted.

If one of two tracks fails on a dual track reader, it

will be replaced with an “E”. On a dual track reader,

the higher density track will be transmitted first.

If a card is inserted so the oxide is not in contact with the head,

the unit outputs a single “E” no matter whether it is a single or

dual

track

unit.


Escape character, optional

(1B hex), set SWA #7 to ON


Start of Text Character, optional (02 hex),
Set SWA #6 to ON



Notes: 1. Optional characters are used to frame the data.

2. The optional Hex characters are shown with the parity bit as zero (“0”).

Figure 3-2. Unsuccessful Card Read