8 Appendix B Cabling Recommendations in Installation
When RG-WALL1600-M6600 is installed in standard 19-inch cabinets, the cables are tied in the binding rack on the
cabinet by the cabling rack, and top cabling 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 instead of outside the
cabinet easy to touch. Power cables are routed beside the cabinet, and top cabling 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
lightning protection box.
Requirement for the minimum cable bend radius
The bend radius of a power cord, communication cable, and flat cable should be greater than five times their respective
diameters. The bend radius of these cables that often bend or suffer removal/insertion should be greater than seven times
their respective diameters.
The bend radius of a common coaxial cable should be greater than seven times its diameter. The bend radius of this type
of cables that often bend or suffer removal/insertion should be greater than 10 times its diameter.
The bend radius of a high-speed cable (SFP+ cable, for example) should be greater than five times its diameter. The bend
radius of this type of cables that often bend or suffer removal/insertion should be greater than 10 times its diameter.
Requirement for the minimum fiber bend radius
The diameter of a fiber tray to hold fibers cannot be less than 25 times the diameter of the fiber.
When moving an optical fiber, the bend radius of the fiber should be equal to or greater than 20 times the diameter of the
fiber.
During cabling of an optical fiber, the bend radius of the fiber should be equal to or greater than 10 times the diameter of
the fiber.
Precautions for Bundling up Cables
Before bundling cables, correctly mark labels and stick the labels to cables where appropriate.
Cables should be neatly and properly bundled, as shown in Figure B-1.
Figure B-1 Bundling up cables (1)
Cables of different types (such as power cords, signal cables, and grounding cables) should be separated in cabling and
bundling. When they are close, crossover cabling can be adopted. In the case of parallel cabling, power cords and signal
cables should maintain a space equal to or greater than 30 mm.
The binding rack and cabling slot inside and outside the cabinet should be smooth, without sharp corners.
The metal hole traversed by cables should have a smooth and fully rounding surface or an insulated lining.
Proper buckles should be selected to bundle up cables. It is forbidden to connect two or more buckles to bundle up
cables.
After bundling up cables with buckles, you should cut off the remaining part. The cut should be smooth and trim, without
sharp corners, as shown in Figure B-2.
Figure B-2 Bundling up cables (2)