NCR 74 OFX (7874), User Manual

Page: 131 / 268

Chapter 5: Programming 5-23
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 RealScan 74 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.