Siemens SCALANCE X-400

Assembly
4.2 Installing/uninstalling the EM495-8 twisted pair extender for SCALANCE X414-3E
SCALANCE X-400 extender modules
24 Compact Operating Instructions, 04/2013, A5E00367421-10
Removing the twisted pair extender from the 35 mm DIN rail
To remove the device, you require a slotted screwdriver with a 2.8 mm wide blade. The
captive screw in the lower part of the extender module between slot 12 and 13 is not used
for mounting on an 35 mm DIN rail. When removing a twisted pair extender from 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. Use a slotted screwdriver with a 2.8 mm wide blade to loosen the two captive slug screws
on slot 11 of the basic device in the upper and lower recesses as far as they will go.
3. Push the extender module slowly to the right while keeping it straight until the two guide
bolts of the extender module are completely outside the holes in the basic device.
4. Push the twisted pair extender down until the lower part can be pulled away from the rail
to the front.
5. Lift the extender module up and off the DIN rail.
6. Replace the right side panel of the basic device so that the guide bolts fit into the two
holes in the basic device.
7. 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.
8. 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.