Structured Cabling

Structured Cabling is defined as building or campus telecommunications cabling infrastructure that consists of a number of standardized smaller elements (structured).

A properly designed and installed structured cabling system provides a cabling infrastructure that delivers predictable performance as well as has the flexibility to accommodate moves, adds and changes; maximizes system availability, provides redundancy; and future proofs the usability of the cabling system.

Structured cabling is an organized approach to a cabling infrastructure. To fully understand this concept, it is easiest to look at what structured cabling isn’t. In many data centers the cabling methodology used is defined as “point to point”. This is running patch cables (or “jumpers”) directly to and from the hardware that needs connectivity.

With that defined, I will go back to structured cabling again. In a structured cabling system, a series of patch panels and trunks are used to create a structure that allows for hardware ports to be connected to a patch panel at the top of the rack. That patch panel is then connected to another patch panel via a trunk (multi-fiber assembly designed for use in conveyance) in the MDA (Main Distribution Area).

The MDA is the key aspect of structured cabling. This is where all the MAC’s (Moves, Adds, and Changes) can be made with short length patch cords.