Siemens SCALANCE X-400 Operating Instructions Manual page 91

7. Replace the right side panel of the basic device so that the guide bolts fit into the two
holes in the basic device.
8. Using a slotted screwdriver with a 2.8 mm wide blade, tighten the two captive slug screws
on slot 11. The screws lock the two guide bolts, so do not use excessive force when
tightening them.
9. Fit a suitable cover on slot 11 of the basic device.
Note
The basic device must not be used permanently without the right side panel.
Installing the twisted pair extender on the 35 mm DIN rail
If the IE Switch X-400 with extender is liable to severe vibration (> 10 g), use the S7-300
standard rail for installation. The DIN rail does not provide adequate support for the twisted
pair extender with vibration greater than 10 g.
For installation, you require a slotted screwdriver with a 2.8 mm wide blade.
Although the captive screw in the lower part between slots 12 and 13 of the extender module
is not used when installing on a 35 mm DIN rail, it is nevertheless advisable to remove the
media modules.
Note
Make sure that in addition to the extender width of 87 mm, there is a clearance of 20 mm to
the right of the basic device on the DIN rail to be able to align the guide bolts of the extender
with the holes in the basic device during installation.
When installing a twisted pair extender on a 35 mm DIN rail, the basic device remains in
position. Follow the steps below:
1. Remove the cover from slot 11 of the basic device.
2. Remove the right-hand side panel of the basic device. To do this, use a slotted
screwdriver with a 2.8 mm wide blade to loosen the two captive slug screws on slot 11 in
the upper and lower recesses as far as they will go.
3. Remove the side panel of the basic device from the basic device to the right.
Note
Keep the panel in a safe place in case the extender needs to be removed again later.
4. Place the central groove containing a spring clip on the back of the extender module on
the upper edge of the DIN rail with the module tilted slightly towards the back. Make sure
that there is adequate clearance between the guide bolts of the extender module and the
basic device.
SCALANCE X-400
Operating Instructions, 06/2015, C79000-G8976-C186-12
4.4 Installing / uninstalling the extender modules for SCALANCE X414-3E
CAUTION
Installation
91