How To Do Structured Cabling?
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1. Specifications for Data Center Cable Trays
Based on cable types, cable trays are divided into fiber optic cable trays and network cable trays.
When routing cables on the cable trays and encountering corners, what should be done? Cable routing around corners should have a certain radius and stay close to the inner side of the cable trays.
For cable routing across multiple network cabinets, it's necessary to pass through the upper or lower cable holes of the cabinets for proper placement.
When laying fiber optic cables, they should first be routed around the network cable trays before being placed in the fiber optic cable trays, with priority given to the side of the trays closer to the cold aisle.
When routing fiber optic cables downwards, they also need to pass through the lower cable holes of the cabinets, and the cable length to be laid should be reserved appropriately within the cabinet.
For network cable routing, it's also necessary to pass through the upper cable holes of the cabinets, with preference for the side of the cable trays closer to the cold aisle.
When the cable length to be routed is too long, the excess cable can be coiled into loops and fixed with cable ties on the top of the cabinet.
Additionally, when routing cables on the cable trays, it's necessary to use zip ties to bundle and secure them at regular intervals, ensuring neat and organized cable routing.
2. Applications of Cabinet Cable Managers and Cable Trunkings
When installing switches or network devices on the rack, cable management should be installed above the switches to facilitate cable organization.
Cable routing should pass uniformly through the corresponding openings on the cable managers above the cabinet's back, ensuring an even distribution of cable management.
Cables passing through the openings of the cable managers need to be bent with a certain radius, fastened with cable ties to the upper side of the cable managers, and then connected to the corresponding switch ports.
Cable labels should be affixed at the bending points of the cables to maintain consistent height and orientation.
When bundling cables at the back of the cabinet, patch cables should be bundled neatly from inside to outside in the order of fiber optics, network cables, and power cables, while keeping the cables Horizontal and vertical..
3. What Constitutes Unregulated Cable Routing
After understanding regulated cable routing, let's look at some examples of unregulated cable routing practices.
When bundling fiber optic cables, their characteristic of not tolerating tight bends should be considered, as small bends can lead to cable damage or significant signal loss.
While routing cables, network cables should not be excessively bent or folded, as this can affect the data transmission quality of the cables.
When routing cable trays, priority should be given to routing from the side of the cable trays closer to the cold aisle, as routing from the outer side is not conducive to proper cable management.
When using cable trays, coiling cable loops should not be placed on the trays, as this can obstruct the usage space of the cable trays.
Additionally, cable loops should not be present inside cabinets.
Cable stacking should be avoided on cable trays. When cable tray space is insufficient, timely expansion of the cable trays is necessary.
Cable management should be installed above network equipment such as switches.
When routing cables inside cabinets, cables should not obstruct the patch panel, as this can impact future maintenance and usage of the panel.
