Cable design considerations

The skills required to design a cabling system are very different from those required to install optical fiber cable physically. A cabling system design must meet the requirements and limitations of its environment while satisfying the needs of the attaching products. The cabling system design must be completed before the physical installation can begin.

The expertise of the cabling system designer becomes more important with the increasing complexity of the cabling system. The designer needs to understand the needs of the customer and the products to be installed before deciding how the optical fiber cable will be distributed throughout the property. This will require an on-site evaluation of the premises. If the system will be installed in a new facility, the system designer should be involved before the system blueprints are completed.

Typical cabling system designs include the following:
  • Building entrance specifications for the cables
  • Number, location, size, and environmental requirements for telecommunications closets and equipment rooms
  • Location, protection, size, and type specifications for the horizontal and vertical backbone system
  • Distribution system type, specifications, and routing information
  • Fire prevention, electrical, and mechanical requirements
  • Conduit system installation requirements
  • Component specifications and installation requirements
  • Cable construction and fiber count
  • Labeling and cable management criteria
  • Installation verification criteria