What Are the 6 Components You Need to Know?

Summary: Structured cabling forms the basis of any modern business network, with reliable connectivity for data, voice, and multimedia. Most firms ask: What are the 6 components of a structured cabling system? Knowledge of these components of entrance facilities, equipment rooms, backbone cabling, horizontal cabling, telecommunications rooms, and work areas is considered imperative in building scalable, efficient, and future-proof networks.

Table of Contents

Horizontal Cabling

Modern businesses depend on a strong network for phone systems, video conferencing, cloud access, and safe file sharing. Structured cabling is the base for all connectivity, a recognized method of designing and installing cabling systems to serve voice, data, and multimedia communication needs.


One highly asked question by businesses is: What are the 6 components of structured cabling? Knowing these components will allow companies to plan, install, and construct networks that they can easily expand and maintain.

What is Structured Cabling?

Structured cabling is the system of cabling and hardware, standardized to provide building-level or campus-wide telecommunications infrastructure for businesses or data centers. In other words, a structured cabling system offers a unified avenue of design for installation, maintenance, and upgrades, rather than depending on a patchwork of wiring methods.
It also follows an international standard, such as TIA/EIA-568, to maintain compatibility and consistency across systems and devices.

What Are the 6 Components of Structured Cabling?

The six primary components of structured cabling are:

  1. Entrance Facilities
  2. Equipment Room
  3. Backbone Cabling
  4. Horizontal Cabling
  5. Telecommunications Room (TR) or Enclosure
  6. Work Area


Let’s explore each one in detail.

1. Entrance Facilities

Think of the entrance facility as where external cabling (from service providers or other buildings) enters your premises. It has connections to the internet providers, phone lines, and private networks.

Key aspects on the list include:

  • A connection point between external and internal cabling.
  • May house network interface devices, grounding, and surge protection.
  • Smooth integration of outside services into your building infrastructure.


Without a properly planned entrance facility, your internal systems may be compromised, connectivity may suffer, and security may be at risk.

2. Equipment Room

The equipment room holds critical network equipment, including servers, routers, switches, and storage. While smaller telecom rooms are more isolated, an equipment room is larger and often located centrally to support a single building or campus.

Some key characteristics include:

  • Hosts core networking and telecommunication hardware.
  • Environmental controls, like cooling, ventilation, and security, are provided.
  • It is the distribution point for services throughout the organization.

Equipment rooms are the “nerve centers” for your structured cabling system. How they are organized directly affects the efficiency and reliability of your network.

3. Backbone Cabling (Vertical Cabling)

Backbone or vertical cabling joins various telecommunications rooms, equipment rooms, and entrance facilities anywhere within one building or among several buildings.

Key considerations are:

  • Runs vertically between floors or horizontally across buildings.
  • Supports high-bandwidth applications.
  • Uses fiber optic cables or high-capacity copper cabling.


The backbone is the primary pathway along which large volumes of data flow between significant network domains. An inadequately dimensioned backbone (or vertical pathway) will become a bottleneck and adversely affect scalability.

4. Horizontal Cabling

Horizontal cabling runs from telecom rooms to work areas on the same building floor. “Horizontal” cabling moves usually through ceiling areas, conduits, or under raised flooring to desks, offices, or workstations.

Major aspects include:

  • Maximum distance, usually limited to 90 meters.
  • It is composed of twisted-pair copper cable or optical fiber.
  • Terminated into patch panels in the telecommunication room and outlets at the workstations.


Horizontal cabling supposedly affects the good user experience since it connects end devices- computers, phones, or printers- to the network.

5. Telecommunications Room (TR) or Enclosure

The telecom room (TR) is the nomenclature for the location where the backbone and horizontal cabling systems are interconnected. A building usually has one telecom room per floor.

Some key points to consider include:

  • Houses the patch panels and cross-connects, as well as the distribution equipment.
  • Will interface the user equipment to the larger network.
  • It will help isolate and manage connectivity on a per-floor or section-of-building basis.


Thus, the telecom room will keep cables orderly, accelerate troubleshooting, and allow for necessary modifications.

6. Work Area

The work area allows end users to plug in and access the network through outlet boxes, patch cords, and devices. It serves as the last link of the cabling system.

Some points of concern:

  • An outlet includes wall plates and connectors that link devices to wall outlets.
  • It must have flexibility to accommodate changes in office layout or user needs.
  • It should have high-quality connectors to maintain performance.


Though often overlooked by designers, the work area is part of the system with which employees interact daily. Proper design assures consistent performance and minimum downtime.

Why Structured Cabling Matters

Entrance Facilities

Every properly designed cabling system offers several benefits:

  • Scalability- To support future technology upgrades easily.
  • Reliability- Less dependent on downtime with standardized and neatly laid out cabling.
  • Cost-efficient- Less maintenance costs and avoids frequent rewiring.
  • Flexible- Easy to adapt to changes in office layouts or business expansion.
  • Performance- Even on speed, it provides connectivity across devices.


Structured cabling is a strategic investment and not a technical necessity for any enterprise, big or small.

Best Practices for Structured Cabling Design

When adopting a structured cabling system, to enable optimal performance, observe certain best practices:

  • Plan for growth– Use higher-capacity cables than you need today.
  • Label everything– Proper labeling saves time during maintenance.
  • Maintain separation– Keep power and data cables apart to reduce interference.
  • In compliance– Adhere to TIA/EIA standards concerning safety and performance.


In testing–
Regularly test the system’s performance, which enables problem identification right at the beginning.

Common Mistakes to Avoid

Sometimes, standards are there, and still some gulps from businesses are well dispensed with structured cabling diagramming:

  • Use poor-quality cables or connectors.
  • Stuff conduits and pathways.
  • Ignore environmental controls in equipment rooms.
  • Have not been considerate about future bandwidth needs.
  • Better documentation may be needed for cable layouts.


Avoiding these pitfalls will go a long way to ensuring your cabling infrastructure stays good and efficient.

Importance of Structured Cabling

Building Reliable Networks with Network Drops

Structured cabling is the underlying medium for present-day connections, through which businesses conduct operations efficiently and can thus be adapted to future requirements. Organizations can ensure that their networks are orderly, scalable, and suitable for future utilization by understanding six core components, ranging from entrance facilities to work areas.

At Network Drops, we design and install structured cabling systems according to your corporate requirements. Whether dusting an older existing setup for expansion or planning new solutions, have experts working so that existing infrastructures will always contribute to the performance and reliability of their site.

Ready to optimize your network? Contact Network Drops today to get started.

Frequently Asked Question

The six building blocks are the entrance facilities, equipment room, backbone cabling, horizontal cabling, telecommunications room, and work areas.

Backbone cabling interconnects several major areas of the network over floors or buildings. Horizontal cabling connects telecommunications rooms to the individual workstations on that floor.

The structured cabling system needs to be reviewed every 5 to 10 years, in case any major network upgrade is planned.

Not always. Fiber can offer higher bandwidth and longer distances, but copper remains cost-effective and is sufficient for many office environments.

Yes. Wireless access points, in fact, still rely on a wired connection to the backbone and horizontal cabling to deliver good performance.

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