What should I do when the device borne by bottom support-type guide rails is higher than the allowed installation range?

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You can deal with such a problem using either of the following methods:
Use non-standard guide rails. Such guide rails occupy extra 1-U space below the U marking.
Use side support-type guide rails. Such guide rails do not occupy extra space.

Other related questions:
Solution when the device height exceeds the installation height in the case of installing the device to the guide rail with bottom support
If a device (the height is n x U and the height occupies all installation space) is installed using the bottom support, the device height plus the thickness of the guide rail is larger than the installation space. In this case, the space for installing other devices is insufficient. Under such circumstances, the following two solutions are provided: 1. Replace guide rails with non-standard guide rails, which occupy 1 U bottom space of the cabinet and do not interfere with upper devices. The non-standard guide rails have bottom support and the supporting plane will sink by 2.0 mm. 2. Replace guide rails with those that have side support, which requires less installation space.

What should I do when adjustable guide rails cannot be installed in the cabinet?
You can adjust the distance between the front and rear channels until you can install guide rails in the cabinet. If the cabinet you choose has had guide rails installed, you can directly use them to bear the device. Please ensure that holes for mounting ears on the device panel are aligned with holes on the channels so that retention screws can be securely in place.

What types of guide rails should I use for Ethernet switches and what are the installation requirements?
Bottom support-type guide rails and adjustable guide rails are delivered with a 1 U Ethernet switch. Such guide rails can be installed in the SC611-20 cabinet. If you need to install adjustable guide rails in another model of cabinet, the following must be met: ? The cabinet size is consistent with that of the 19-inch (482.6 mm) IEC 60297 series. ? The distance between front and rear channels ranges from 600 mm to 900 mm. ? Holes on the channels can be either of the following: ? Square holes (side length �?9 mm) ? Round holes (diameter �?Ф 7 mm) ? The minimum horizontal distance in the cabinet cannot be less than 475 mm.

What types of guide rails should I use for file engine nodes and what are the installation requirements?
Side support-type guide rails and adjustable guide rails are delivered with a 4 U file engine node. Such guide rails can be installed in the SC611-20 cabinet. If you need to install adjustable guide rails in another model of cabinet, the following must be met: ? The cabinet size is consistent with that of the 19-inch (482.6 mm) IEC 60297 series. ? The distance between front and rear channels ranges from 690 mm to 770 mm. ? Holes on the channels can be either of the following: ? Square holes (side length �?9 mm) ? Round holes (diameter �?Ф 7 mm) ? The minimum horizontal distance in the cabinet cannot be less than 475 mm.

What types of guide rails should I use for controller enclosures or disk enclosures and what are the installation requirements?
Bottom support-type guide rails and adjustable guide rails are delivered with 2 U and 4 U controller enclosures or disk enclosures. Such guide rails can be installed in the SC611-20 cabinet. If you need to install adjustable guide rails in another model of cabinet, the following must be met: ? The cabinet size is consistent with that of the 19-inch (482.6 mm) IEC 60297 series. The open size is 450 mm. ? The distance between front and rear channels ranges from 600 mm to 900 mm. ? Holes on the channels can be either of the following: ? Square holes (side length �?9 mm) ? Round holes (diameter �?Ф 7 mm) ? The minimum horizontal distance in the cabinet cannot be less than 475 mm.

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