Posiflex LS-1000 - Manual (Page 103)

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OMNIDIRECTIONAL SCANNER PROGRAMMING GUIDE
2. Emulation Data Output Selection
The decoded data output logic level can be set to befit the external
decoder.
Wand emulation data output black = high
To prevent confusion in code scanning, cover the
unwanted label and present the desired barcodes one by
one to the scanner.
Wand emulation data output black = low