The keyboard wedge scanner should be coded as follows for proper operation in iMerchant.

Allow the following bar code symbologies:

UPC-A / EAN-13

UPC-A / EAN-13  with optional 2 digit supplement.

UPC- A /EAN-13 with optional 5 digit supplement.

UPC-E

UPC-E with optional 2 digit supplement.

Code 39

Interleaved 2 of 5

Code 128

Expand UPC-A to 13 digit number EAN number if possible.

Add a prefix and suffix characters to the data stream from the scanner. This will allow iMerchant to recognize the keyboard input as a scan. iMerchant can then allow or disallow the scanned input as required in the application.

The prefix or pre-amble character must be the equivalent of the Control-G key being pressed on the keyboard. This is the ASCII code 07.

The suffix or post-amble character must be the equivalent of the enter key. Sometimes this is called the Carriage Return or CR key.

The data coming to iMerchant should be:

1  The prefix character (Control-G).

2  The bar code data from the scanner.

3  The suffix information, (Enter key)