MagTek MICRImage - Manual (Page 19)

Section 2. Configuration Commands
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commands. When this option is selected, all messages received without a GS header will be
transmitted “as received” through the RS-232 auxiliary port.
For the third option, “no reply,” the MICRImage will execute all valid commands, but it will not
reply to invalid commands.
The fourth option, “ignore all commands,” causes the MICRImage to stop receiving any Host
data and 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.
Active RTS
When this function is set to YES, the MICRImage will raise RTS and wait 5 seconds for CTS to
become active before sending any data. If the 5 seconds expire and CTS is not active, the data
message will be discarded and nothing will be sent.
Data Header
If YES is selected, a single character header precedes the data. For MICR data, the message is
transmitted as follows:
‘C’[data]
For card data, the header position on the message is controlled by the Card Data Message
parameter (see below). Therefore, the message may be transmitted as follows:
If Multiple Message: ‘M’[TK1]‘M’[TK2]’M’[TK3]
If Single Message: ‘M’[TK1] [TK2] [TK3]
It is important to note that the Data Header precedes the data and not the message. For example,
if <STX>, <ETX> and Data Header are set to YES, a MICR data message will be transmitted as
follows:
<STX>‘C’[data]<ETX>
Card Data Message
This parameter determines the structure of the output message for the individual tracks when a
credit card is read. If Multiple is selected, the Control Characters (see SWB, below) and Data
Header (see Data Header, above) are added to each track individually. On the other hand, if
Single is selected, all available tracks are lumped together into a single message. For example, if
<STX>, <ETX> and Data Header are set to YES, the output message may be transmitted as
follows: