5-24 Chapter 5: Programming
Restart Lockout Timer
The Restart Lockout Timer parameter controls restarting the lockout timer each time the
scanner reads the same bar code. Turning on the Restart Lockout Timer option has the
following effect. If a bar code moves out of the scan pattern after being read and then back into
the scan pattern before the lockout timer times out, the lockout timer restarts. The Hex 0 tag
turns off this option and the Hex 1 tag turns it on.
Active Time
The specific lengths of time that the 7893 stays ON after the last good read can be
programmed. There are four options in the Active Time parameter: no shut down, shut down
after 15 minutes, shut down after 30 minutes, and shut after 60 minutes. Select these times
using the Hex 0 through Hex 3 tags, respectively.
Note: NCR suggests that the Active Time parameter not be set to 0. When set to 0, the laser
lights will be ON all the time which reduces the life expectancy of the laser diodes.
900ms Lockout Timer Restart Limit
The 900ms Lockout Timer Restart Limit parameter is OFF by default. Scan Hex 1 to enable
900ms Lockout Timer Restart Limit. If the 900ms Lockout Timer Restart Limit is ON then the
Restart Lockout Timer is also ON (refer to the “Restart Lockout Timer” section in this chapter
for more information). If an item moves in (and the tag is read), out, and then back in the scan
zone, the firmware recognizes the bar code as the same bar code that it has already read. In this
case, the Lockout Timer is restarted only if it has been on for less than 900ms.
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