Siemens SCALANCE X-400 Compact Operating Instructions page 27

Removing the media module extender from the S7-300 standard rail
You require the following tools:
● slotted screwdriver with a 2,8 mm wide blade
● slotted screwdriver with a 5.5 mm wide blade
Note
To remove the extender, remove the media modules from slots 13 and 14.
When removing a media module extender from an S7-300 standard rail, the basic device
remains in position. Follow the steps below:
1. To remove an extender module, use a slotted screwdriver with a 5.5 mm wide blade, to
2. Remove the cover from slot 11 of the basic device.
3. Use a slotted screwdriver with a 2.8 mm wide blade to loosen the two captive slug screws
4. Push the extender module slowly to the right while keeping it straight until the two guide
5. Pull out the lower part of the extender module slightly towards the front and lift it from the
6. Replace the right side panel of the basic device so that the guide bolts fit into the two
7. Using a slotted screwdriver with a 2.8 mm wide blade, tighten the two captive slug screws
8. Fit a suitable cover on slot 11 of the basic device.
SCALANCE X-400 extender modules
Compact Operating Instructions, 04/2013, A5E00367421-10
4.3 Installing / uninstalling the EM496-4 media module extender for SCALANCE X414-3E
open the captive screw between slots 13 and 14 in the lower part of the extender module.
on slot 11 of the basic device in the upper and lower recesses as far as they will go.
bolts of the extender module are completely outside the holes in the basic device.
S7-300 standard rail.
holes in the basic device.
on slot 11. The screws lock the two guide bolts, so do not use excessive force when
tightening them.
Note
The basic device must not be used permanently without the right side panel.
Assembly
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