Siemens X-400 User Manual

 

Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches 

74 

C79000-G8976-C186-03 

There are three variants of the covers 

●  CV490 2x1000 

1 Gbps, electrical transmission, 2 port displays 
possible slot: 5 

●  CV490 2x100 

4 blind displays (no port displays connected to front) 
possible slots: 6, 7 and extender module EM496-4 slots 12 through 15 

●  CV490 4x100 

10/100 Mbps, electrical transmission, 4 port displays 
possible slots: 9 through 11 and extender module EM495-8 slots 12, 13 

To fit a cover, you do not require any tools. 

1.  Place the two lower guides of the cover into the recesses at the lower edge of 

the basic device. It should no longer be possible to move the cover to the side. 

2.  Tilt the cover at an angle towards the back until the two plastic pins at the back 

top edge of the cover jut into the recesses in the basic device. 

3.  Press the upper part of the cover onto the basic device until the fluted middle 

section of the cover is heard to click into place. 

4.  Secure the labeling strip on the front of the cover. 

To remove a cover, you do not require any tools. 

1.  Press on the fluted middle section of the top of the cover next to the backplane. 

2.  At the same time, tilt the cover down at an angle, the two guides initially remain 

in the recesses at the lower edge of the basic device. 

3.  Remove the cover by pulling it upwards.