User Guide

427-0089-00-12 Version 180 August 2020 74
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Advanced Configuration
disable DV8, you might need to perform an sFFC. Enabling or diasbling DV8 takes effect
immediately. You do not need to click Save.
Performing sFFC can correct some types of
thermal image issues. It requires placing a
blackbody in front of the camera. To perform
a one-time sFFC, click sFFC.
By factory default, the camera dynamically
adjusts sFFC according to the thermal
sensor’s focal plane array (FPA) temperature. To disable the factory sFFC offset mode and freeze
the thermal sensor’s current sFFC settings, click Offset Mode Field. To re-enable the factory sFFC
offset mode, click Offset Mode Factory.
After performing sFFC or changing the sFFC offset mode, restart the Nexus server. You do not need
to click Save.
3.3 Restoring the Factory Settings
The camera comes configured from the factory with a default IP address (192.168.0.250), the login
passwords (user, expert, admin), and all of the other configuration parameters (stored in a file called
server.ini). In some cases, it may be necessary to restore the network settings of the camera to the
original factory settings. If necessary, the camera IP address can be restored to this factory default
address during initial power-up by temporarily connecting a loopback device to either:
• The Ethernet port of the camera: Use conventional power.
• The LAN port of a PoE+ injector whose corresponding PoE port is connected to the camera. (It
is not possible to use a loopback device with a PoE+ switch.)
Approximately 30 seconds after power is turned on, the loopback device should be removed to allow
the camera to finish booting up.
Note
At each power-up, the system transmits a packet and then checks to determine if that same packet
has been received. Detection of the received packet indicates a loopback device is installed. The
detection of the loopback packet cues the camera to restore Factory Defaults (including the IP
settings, user passwords, and configuration file), and to revert to the same configuration and
behavior as when the camera left the factory.
After the camera boots up, confirm the startup information is displayed on the analog monitor after
approximately 90 seconds. For example:
S/N: 1234567
IP Addr: 192.168.0.250
The RJ45 loopback termination ties pin 1 to pin 3, and pin 2 to pin 6. The other pins are not
connected. (See the diagram and table on the following page.) This type of device is available
commercially (the Smartronix Superlooper Ethernet Loopback Jack and Plug is one example), or it
can be easily made with an RJ45 plug, a couple wires, and a crimp tool.
The camera will not finish booting up while the loopback device is connected. The camera will
display analog video, but the Nexus Server will not start until the loopback device is removed.