EMV American Express DRL Configuration File Type (Not Supported on Expresspay 4.x)
The host can load this file type to control the behavior of the device’s American Express contactless kernel when the card sends tag 9F70 and one or more DRL is defined.
The host can load it using Start Send File to Device (Unsecured) - Command 0xD812. See the Expresspay 4.0.2 specification for functional details.
MagTek provides tools that allow these settings to be loaded using a Microsoft Excel spreadsheet in xlsx format for more convenient authoring, review, and change tracking. For a reference sample spreadsheet, contact MagTek Support Services. The MagTek tools expect the spreadsheet to be formatted as shown in Table 43. Each DRL to be supported is defined in a tab of the Excel file.
EMV Configuration American Express DRL Set File Type
Tag
Len
Value / Description
Typ
Req
Example
The MagTek tool converts the spreadsheet data into the raw format shown in
Tag
Len
Value / Description
Typ
Req
Example
DF26
06
Reader CVM Required Limit
B
R
00 00 00 00 10 00
SHA-1 Hash 20 byte hash of all values that follow
FF37
var
DRL Configuration Container
T
R
/FF36
var
DRL Set Container
T
R
//DF23
06
Reader Contactless Floor Limit
B
R
00 00 00 00 15 00
//DF24
06
Reader Contactless Transaction Limit
B
R
00 00 00 00 05 00
//DF26
06
Reader CVM Required Limit
B
R
00 00 00 00 10 00
Additional instances of DRL Set Container as needed
DF23
06
Reader Contactless Floor Limit
B
R
00 00 00 00 15 00
DF24
06
Reader Contactless Transaction Limit
B
R
File Type Version One byte indicating the version of the file type format being used.
0xAA
Raw EMV Configuration American Express DRL Set File Type