D-Link xStack DXS-3350SR Installation & User Manual - page 25
DXS-3350SR Gigabit Layer 3 Switch
At the back of the Switch to the left is the slot for the optional module, as shown in Figure 2-4. This slot should be covered
with a faceplate that can be easily removed by loosening the screws and pulling off the plate.
Figure 2- 4. Optional Module slot at the rear of the DXS-3350SR
Optional Module Slot
After removing the faceplate, remove the DEM-420X optional module from its box. The front panel should resemble the
drawing represented in the following figure.
Figure 2- 5. Front Panel of the DEM-420X
Take the module and gently slide it in to the available slot at the rear of the Switch until it reaches the back, as shown in the
following figure. At the back of the slot are two sets of plugs that must be connected to the module. Gently, but firmly push
in on the module to secure it to the Switch. The module should fit snugly into the corresponding receptors.
Figure 2- 6. Inserting the optional module into the DXS-3350SR
Now tighten the two screws at adjacent ends of the module into the available screwholes on the Switch. The upgraded DXS-
3350SR is now ready for use.
Figure 2- 7. DXS-3350SR with optional module installed
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