Within the LOFAR RF-cabin, there are four, full-height 482.6mm (19") rack frames. The sub-rack assemblies go into the first three of these and the fourth is for the control computers, clocks and networking. Once the sub-rack assemblies are in place, they can be cabled up with the white signal cables that come from the back of the patch panels.
Caption 1 : Tonjes Jipping and Peter Gruppen lift the last sub-rack assembly into the RF-container and secure it into its rack frame.
Caption 2 : Ready for cabling! The signal processing electronics are now in place and are ready to be connected up.