When the scanner is configured as an SPP Central mode, you must create a pairing barcode for the remote Bluetooth device to which the scanner is connecting. You must know the Bluetooth address of the remote device.
To create a pairing barcode, format a Code 128 barcode as follows:
<Fnc 3>Bxxxxxxxxxxxx
where:
B (or LNKB) is the prefix
xxxxxxxxxxxx represents the 12-character Bluetooth address.