Datalogic Scanning 9500 - Manual (Page 219)

RS-232 Features
Product Reference Guide
6-103
RS-232 Retry on ACK NAK Timeout
This option specifies the action scanner performs on expiration of the RS-
232 ACK NAK Timeout Value .
To set this feature:
1. Scan the SWITCH bar code.
2. Scan either the enable or disable bar code below. 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 RETRY ON ACK NAK TIMEOUT = DISABLE
RS-232 RETRY ON ACK NAK TIMEOUT = ENABLE