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IIT Camera System Manual
34 System Set-Up
5 Appendix A: Troubleshooting
Fault description Possible cause
“Remedy”
1.1
Camera does not
trigger or has bad
trigger performance
Iris is not fully open
Open Iris
1.2
Illuminator is not properly
aligned with the camera
See EN Camera/Illuminator
alignment procedure in Appendix C
1.3
The supply voltage to the IIT
Camera is too low causing weak
IR illuminator
Adjust the supply voltage to
24V±10%
1.4
The geometry of the installation
is not in correct
See section 2 for site layout
1.5
Plates are not going through
reflection sensitive area
See section 1.5
2.1
Noisy pictures
TTL and Serial trigger are both
enabled
Disable TTL trigger in Properties in
EN Setup Application if IIT Light
Sensor is used
2.2
The time between two triggers
are set too low
Set the minimum time between
triggers (command M) via Serial
Terminal in EN Setup application in
accordance with camera specific
values
3.1
Embedded ALPR
does not work
The license file is expired
Contact JAI Inc.
3.2
Wrong country module has been
selected in the “ALPR country
module” in Properties field
See section 4.3
3.3
The time is not set correctly in
the camera
Set the clock in the camera
correctly. The clock can be
synchronized to PC time or an NTP
server. Please refer to EN Setup
manual for details.