Siemens X-400 - Manual (Page 86)

Installation and Commissioning
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
86 C79000-G8976-C186-03
5. The spring clip must be located behind the edge of the 35 mm standard rail so
that it is visible from the rear of the frame.
6. Press the extender module down and push in the lower part until you hear it
click into place in the standard rail.
7. Push the extender module slowly to the left while keeping it straight and with-
out skewing and check that the two guide bolts on the extender fit into the
holes in the basic device. Then push the extender module to the left as far as it
will go so that it is flush with the right side of 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 ex-
cessive force when tightening them.
9. Fit the CV490 4x100 cover on slot 11 of the basic device. Make sure that the
media module terminal strips of slots not occupied by media modules have
protective caps fitted and that the CV490 2x100 covers are in place.
Figure 6-7 Installing the media module extender on the 35 mm standard rail