National Instruments FP-PS-4 - Manual (Page 3)

© National Instruments Corp. 3 FP-PS-4 Operating Instructions
3. Slide the FP-PS-4 to the desired position along the DIN rail.
For maximum cooling, leave a 25 mm (1.0 in.) space between
the FP-PS-4 and other devices on your DIN rail. After it is in
position, lock it to the DIN rail by pushing the rail clip to the
locked position, as shown in Figure 3.
Figure 3. Positioning and Locking Your Module