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Network Infrastructure Magazine | Wednesday, May 04, 2022
As wiring and connecting points expanded, increased standardization of cabling, connectors, and the many types of wiring, including copper, fiber, and coaxial, was required.
FREMONT, CA: Cabling for voice and data communications systems was significantly less complicated decades ago than it is now. To protect the cable, most systems employed two- or four-pair copper wire sheathed in a binder. Connections frequently required peeling the wire's end to expose the copper conductor. This was then connected to a collection of connectors, sometimes referred to as a connecting block, connecting physical devices to switching equipment, such as a PBX system.
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In the late 1970s and early 1980s, as digital transmission became more prevalent in practically all forms of voice and data communications equipment, new types of wiring and connectors arose. The goal was to streamline the process of connecting devices to their parent system, hence expediting establishing a wired infrastructure for voice and data devices.
Structured cabling significantly simplifies installing a cable infrastructure capable of supporting a broad range of voice and data communications equipment. Whether installing a coaxial outlet in your home or wiring a skyscraper, all components must adhere to strict specifications for electrical transmission, resistance, cable lengths, connections, and cable fabrication.
Structured cabling also aids in debugging wiring problems when used in conjunction with the appropriate diagnostic equipment compatible with the ANSI/TIA-568.0/1 standards. Structured cabling also simplifies installation because the interfaces are standardized, generally using snap-in connectors.
Several subsystems of structured cabling
Entrance Facilities (EF): Telecom facilities entering a business or dwelling from the outside—whether a local service carrier or a private network—are routed through a conduit through an opening in the outer wall. This cabling enters a room where additional devices such as network connection points, patch panels, equipment racks, hardware connectors, power supply, grounding, shielding, and lightning protection devices are installed.
Equipment Room (ER): The equipment room is where entrance cabling links to the building's interior electrical infrastructure. It contains patch panels that connect backbone, horizontal, and intermediate cabling. Since this room may also include network switches, PBXs, servers, and other devices, it should be appropriately managed to guarantee that the temperature and relative humidity levels meet the specifications of the equipment vendor.
Telecommunications Room (TR) and Telecommunications Enclosure (TE): This environmentally controlled space can be a standalone room (TE) or a component of a larger room (TR), such as a general utility room. These areas include hardware that terminates horizontal and backbone cables. Additionally, local wires, referred to as jumpers or patch cords are utilized to cross-connect separate cables on patch panels. Additionally, ICs or MCs may be inserted to give additional connection resources.
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