Figure 2.5:Attaching Din Rail Bracket; Figure 2.6:Piggyback Stacking - Advantech ADAM-6521 Series User Manual

DIN-rail Mounting
You can mount ADAM-6521 modules on a standard 35 mm DIN-rail.
First, use two screws to attach the DIN-rail bracket to the ADAM mod-
ule. Because ADAM-6521 modules use special hex head slotted shoulder
screws, the tops of the screws will be even with the front of the module.
Snap the module onto the DIN-rail.
Figure 2.5: Attaching DIN Rail Bracket
Piggyback Stack
Several ADAM-6521modules can be stacked as seen in the figure below.
Figure 2.6: Piggyback Stacking
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