Motorola DS3478 - Manual (Page 165)

Scanner Emulation Interface 11 - 7
Module Width
The standard module width is 20 µs. For an extremely slow decoder system, use this parameter to extend this
module width to 50 µs.
Convert All Bar Codes to Code 39
Scan the appropriate bar code to enable or disable converting all bar code data to Code 39.
*20 µs Module Width
50 µs Module Width
*Do Not Convert All To Code 39
(Disable)
Convert All To Code 39
(Enable)