Magtek MICRSafe, Technical Reference Manual

Page: 23 / 79

Section 4. Legacy Commands
15
SWC PARAMETERS
The SWC functions are listed in Table 4-5 above and are described below:
CMC-7 Character Set
If NO is selected, the MICRSafe will only read E13-B characters. When YES is selected,
the MICRSafe will read both CMC-7 and E13-B characters (see Appendix B). However,
the MICRSafe will only output raw data ("as is" on the check) for checks with CMC-7
characters.
Invalid Command Response
Invalid command response is the action the MICRSafe will take upon receipt of a
command it does not recognize. It can also be used to stop the MICRSafe from receiving
any more commands.
The first option “
?<CR>
” is the default. If the MICRSafe receives an unrecognized
command, it will return a question mark and carriage return to the Host. The MICRSafe
will then return to an idle state and wait for further commands or check/credit card reads.
For the second option, “no reply - header required,” the MICRSafe will only execute
commands preceded by a GS ASCII character (hex 1D). All other commands will be
ignored. Also, the MICRSafe will not reply to invalid commands.
For the third option, “no reply – no header required,” the MICRSafe will execute all valid
commands, but it will not reply to invalid commands.
The fourth option, “ignore all commands,” causes the MICRSafe to ignore any further
commands. Even the SA (Save) command is ignored and therefore this fourth option is
only temporary. To make this option permanent or to reset it, you must use an Insta-
Change check.