Structured cabling is the basic foundation on which all other network equipment depends. Now more than ever before, critical business communications, operations, and processes depend on effective transport over a structured network and cable infrastructure. DGS adheres to strict industry specifications in the design and installation of structured cabling for all applications. You can trust Damia Global Services to implement a structured cabling system with extensive testing to ensure maximum performance when plugging in your network equipment. Infrastructure that is poorly designed, installed or maintained can hinder productivity and business operation. Our certified technicians offer design, installation, maintenance, and optimization of structured cabling systems comprised of copper cable, fiber optic cable, and coaxial cable for delivery of voice, data, and video services. Cable infrastructure has the longest lifecycle and lowest cost of any network components. Ensure your structured cabling system is done the right way with DGS.



The Six Subsystems of a Structured Cabling System


This information is based on two standards: ANSI/TIA-568-C.0 (Generic Telecommunications Cabling for Customer Premises), which is used for generic infrastructures, and ANSI/TIA-568-C.1 (Commercial Building Telecommunications Cabling Standard), which is more commonly used with typical commercial building infrastructures.

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1. Entrance Facilities (EF)

It contain the cables, network separation point(s), connecting hardware, protection devices and other equipment that connect to the access provider (AP) or private network cabling. It includes connections between outside plant and inside building cabling.

  1. Equipment Room (ER)

The environmentally controlled centralized space for telecommunications equipment is usually more complex than a telecommunications room (TR) or telecommunications enclosure (TE). It usually houses the main cross-connect (MC) [Distributor C] and may also contain the intermediate cross-connects (ICs) [Distributor B], horizontal cross-connects (HCs) [Distributor A], or both.

  1. Backbone Cabling

The backbone cabling provides interconnection between telecommunications rooms, equipment rooms, access provider (AP) spaces and entrance facilities. There are two subsystems defined for backbone cabling:

  • Cabling Subsystem 2– Backbone cabling between the horizontal cross-connect (HC) [Distributor A (DA)] and the intermediate cross-connect (IC) [Distributor B (DB)]
  • Cabling Subsystem 3 – Backbone cabling between an intermediate cross-connect
    (IC) [Distributor B (DB)] and the main cross-connect (MC) [Distributor C (DC)]
    Recognized cabling:
  • 100-ohm twisted-pair cabling: Category 3, Category 5e, Category 6or Category 6A
  • Multimode optical fiber cabling: 850 nm laser-optimized 50/125 μm is recommended; 62.5/125 μm and 50/125 μm is allowed
  • Single-mode optical fiber cabling
  1. Telecommunications Room (TR) and Telecommunications Enclosure (TE)

A TR or TE houses the terminations of horizontal and backbone cables to connecting hardware including any jumpers or patch cords. It may also contain the IC or MC for different portions of the backbone cabling system. The TR or TE also provides a controlled environment to house telecommunications equipment, connecting hardware and splice closures serving a portion of the building.

The use of a telecommunications enclosure (TE) is for a specific implementation and not a general case. It is intended to serve a smaller floor area than a TR and may be used in addition to the minimum "one TR per floor" rule.

  1. Horizontal Cabling – (Cabling Subsystem 1)

The horizontal cabling system extends from the work area’s telecommunications information outlet to the telecommunications room (TR) or telecommunications enclosure (TE). It includes horizontal cable, mechanical terminations, jumpers and patch cords located in the TR or TE and may incorporate multiuser telecommunications outlet assemblies (MUTOAs) and consolidation points (CPs). The maximum horizontal cable length shall be 90 m (295 ft.), independent of media type. If a MUTOA is deployed, the maximum horizontal balanced twisted-pair copper cablelength shall be reduced.

Recognized cabling:

  • 4-pair 100-ohm unshielded or shielded twisted-pair cabling:
    Category 5e, Category 6or Category 6A
  • Multimode optical fiber cabling, 2-fiber (or higher fiber count)
  • Single-mode optical fiber cabling, 2-fiber (or higher fiber count)
  1. Work Area

Work area (WA) components extend from the telecommunications outlet/connector end of the horizontal cabling system to the WA equipment. A minimum of two telecommunications outlets (permanent links) should be provided for each work area. Multiuser telecommunications outlet assemblies (MUTOAs), if used, are part of the WA.



For your cabling system to operate hassle free and at full efficiency, it is important the cabling for the network be installed by structured cabling professionals, such as those at Damia Global services. Prior to allowing anyone to work on your cabling system, you should ask yourself the following questions.

  • Have you received a fair and detailed quote and price?
  • Can the structured cabling system provider design a cable infrastructure which will meet all current and future system needs?
  • Will the cable be installed to meet all standards and certifications, such as BICI, EIA/TIA, ANSI, NECE and all state and local building codes?
  • Will the installer ensure you are provided with accurate test results which demonstrate that the system meets category standards?
  • Can your installer test and diagnose any possible future problems with either your cabling or hardware?
  • Can the cable installation company correctly terminate the cable fibers, which can become increasingly complex and important as greater bandwidth is added to your computer system?
  • Can your installer provide you with low voltage cabling solutions?

Damia Global Services can assure you that all of these questions and needs will be taken care of by our structured cabling system experts. State Systems knows that being able to manage your structured cabling infrastructure is another important aspect of your structured cabling needs. It is natural to have adds, moves and changes to the cabling system to support employees as they are restructured or added to the ever-growing office environment. This day-to-day management requires in-depth knowledge of how devices are connected and where they are located, and State Systems technicians are certified and well acquainted with the telecommunication standards that define how a cabling system should be labeled and documented.


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