MagTek MAXI MICR RS232 - Manual (Page 17)

Section 4. Commands
9
If no data is sent, the MICR Reader responds with the current settings for SWA.
Note
The new settings for the serial port will not become effective
until the RS (Reset) command is executed. The Reset
command is described at the end of this section.
SWA PARAMETERS
The SWA functions are listed in Table 4-1 and described below.
Baud Rate
The baud rate is one of seven speeds at which the MICR Reader communicates with the Host.
The lowest speed is 300 baud, and the highest is 19200.
Data and Parity
The number of data bits and the parity bit are interrelated. If even, odd, or mark parity is selected,
the MICR Reader will use seven data bits per byte with one parity bit. If a parity of none is
selected, the MICR Reader will use eight data bits per byte.
CTS/DSR
When CTS/DSR (Clear to Send/Data Set Ready) is set to IGNORE, the MICR Reader sends data
to the Host without waiting for the CTS and DSR signals to be active. When CTS/DSR is set to
USE, the MICR Reader waits for the CTS and DSR signals to be active before sending data.
Number of Stop Bits
The number of stop bits is either 1 or 2. Normally, one stop bit is used for most applications.
Two stop bits are used to allow extra time for slower Host equipment.
Intercharacter Delay
The intercharacter delay is used to increase the time between characters transmitted from the
MICR Reader. The time is increased to 13 milliseconds. This parameter affects character rate but
not baud rate (i.e., each character takes the same time to transmit but the time between characters
is increased).