super user or reboot the system. To assure stable operation of the detector system the configuration file /etc/sysctl.conf is
changed such that the Ethernet rx and tx buffers are larger than the standard setting.
The firewall and SE Linux are disabled by default (otherwise the following ports must be open for UDP: 52010, 52011,
52012). The following firewall port must be open if you want to connect to Camserver with a TCP/IP socket connection from
the outside: 41234
4.2.3. PILATUS Processing Unit (PPU)
The installation of distributed control systems and/or other software packages on the PPU is encouraged but it is explicitly
advised that the PILATUS3 detector server itself should not be altered. General software installations on the PPU can be
done without risking the data collection stability of the PILATUS3 X 6M detector system.
Figure 4.7:
Configuration of the PILATUS3 X 6M detector system.
The DCU and the PPU are set up with the RHEL-based Linux distribution. Regular system updates can be made. However,
to avoid operational deterioration do not update the system while the detector is taking data. For more information please
refer to the documentation of the PPU or consult http://www.dectris.com/.
4.2.4. Samba Share
There is a Samba share configured on the DCU. The Samba service is enabled by default and running after the system
boots.
The storage directory for the images, /home/det/p2_ det/images, which is a symbolic link to /home/det/images, can be
accessed from a Samba client. You need the same user name and password as for the normal console or ssh login.
From a Linux or Mac OSX terminal window issue the following command:
smbclient
server-ip-or-hostname/images -U det
To browse the Samba share from Windows, type
in the Windows Explorer address bar.
4.3. Thermal Stabilization Unit
A thermal stabilization unit is required for the operation of the PILATUS3 X 6M detector system. The hoses and the detector
PILATUS3 X 6M Technical Specifications v1.2.0
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