Datalogic Scanning 9500 - Manual (Page 211)

RS-232 Features
Product Reference Guide
6-95
RS-232 TTL Invert
Enables/disables inversion of TTL.
To set this feature:
1. Scan the SWITCH bar code.
2. Scan the bar code below which represents the desired setting for this
feature. You’ll need to cover any unused bar codes on this and the
facing page to ensure that the scanner reads only the bar code you
intend to scan.
3. Complete the programming sequence by scanning the SWITCH
bar code.
RS-232 TTL INVERT = DISABLE
RS-232 TTL INVERT = ENABLE