1D Twin Code; Enhance Poor Quality 1D Barcode Decoding - Newland NLS-HR42 User Manual

1D Twin Code

1D twin code is two 1D barcodes of a symbology or of different symbologies paralleled vertically. Both barcodes must have
similar specifications and be placed closely together.
There are 3 options for reading 1D twin code:
Single 1D Code Only: Read either 1D code.
Twin 1D Code Only: Read both 1D codes. Transmission sequence: upper 1D code followed by lower 1D code.
Both Single & Twin: Read both 1D codes. If successful, transmit as twin 1D code only. Otherwise, try single 1D code only.
@A1DDOU0
** Single 1D Code Only
@A1DDOU1
Both Single & Twin

Enhance Poor Quality 1D Barcode Decoding

@ALL1DE0
** Off
@A1DDOU2
Twin 1D Code Only
@ALL1DE1
On
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