AMC Commands and Responses 
The following sections describe the commands that the host can send to the reader, this 
is followed by a section describing the reader responses to the host.  There are three 
groups of commands, which can be sent to the reader.  The first is used to manipulate the 
reader (LED’s, status, etc.).  The second is used to read and process magnetic stripe 
data.  The third group is used to write magnetic stripe data.  Table 1, Table 3 and Table 4 
summarize the commands of each group. 
 
The unit executes commands received from the host one at a time and cannot execute a 
new command until the previous command has been completed.  Once the unit receives 
a command, it performs the requested action and reports the results back to the host. 
 
Unless otherwise specified, the examples shown assume that the unit uses the default 
settings. 
 
Reader Commands