Appendix D Cabling Recommendations - Ruijie Reyee RG-NIS3100 Series Hardware Installation And Reference Manual

RG-NIS3100 Series Switches Hardware Installation and Reference Guide

Appendix D Cabling Recommendations

When RG-NIS3100 series switches are installed in standard 19-inch cabinets, cables are tied in the binding
rack on the cabinet by the cabling rack, and top or bottom cabling is adopted according to the actual situation in
the equipment room. All cable connectors should be placed at the bottom of the cabinet in an orderly manner
but not outside the cabinet. Power cables are routed beside the cabinet, and top or bottom cabling is adopted
according to the actual situation in the equipment room, such as the position of the DC power distribution box,
AC socket, or surge protection box.
Requirement for the Minimum Cable Bending Radius

The bending radius of a power cord, communication cable, and flat cable should be five times greater than
their respective diameters. The bending radius of these cables that often bend or is removed or installed
should be seven times greater than their respective diameters.

The bending radius of a common coaxial cable should be seven times greater than its diameter. The
bending radius of this type of cables that often bend or is removed or installed should be 10 times greater
than its diameter.

The bending radius of a high-speed cable (for example, SFP cable) should be five times greater than its
diameter. The bending radius of this type of cables that often bend or is removed or installed should be 10
times greater than its diameter.
Requirement for the Minimum Fiber Bending Radius

The diameter of a fiber tray to hold fibers cannot be 25 times less than the diameter of the fiber.

When moving an optical fiber, the bending radius of the fiber should be equal to or 20 times greater than the
diameter of the fiber.

During cabling of an optical fiber, the bending radius of the fiber should be equal to or 10 times greater than
the diameter of the fiber.
Precautions for Bundling Up Cables

Before bundling up cables, correctly mark labels and stick the labels to cables.

Cables should be neatly and properly bundled, as shown in Figure D-1.
Figure D-1 Bundling Up Cables
Appendix D Cabling Recommendations
45