Tag Archives: category 5 cable

As mentioned previously, modern data centers must be flexible, scalable, reliable, and manageable, making best practices required. Part 3 will cover Color Identification and Naming Scheme.

Color Identification

A method of fast visual identification, color coding makes management simpler, conserving time spent on the tracing of cables. Patch panel ports can also be coded, and various colored jacks and inserts are also coded. As determined by a particular manufacturer’s own color scheme, cables are available in numerous colors, each of which can be made applicable to the specific function of a cable or connection type.

Color schemes are expandable through the use of color bands at the end of every cable, using various colored sleeves and colored ports on the patch panel. However, it will also be necessary to use a secondary non-color scheme to make it possible for those who are color blind to identify the cables.

Naming Schemes

After determining the physical layout for the cabling that will be used, use a naming scheme that can be logically applied for facilitating fast and effortless identification of every cable component. Labeling can be an especially effective way to improve team communication among staff members because it makes confusion and uncertainty unlikely when a colleague must search for a particular component. Clear labeling is integral to the success of the naming scheme, and it should not be neglected.

A good naming scheme documents and labels every cable component. The following is the typical hierarchy for a naming scheme: Building, Room, Rack, Patch Panel, Workstation Outlet, Port, and Cable. Each should receive a designation indicating its location preceded by the area(s) above it. For example, Rack A03 would receive the designation SJ01-5D11-A03, if Room is designated SJ01-5D11, and Building is designated SJ01.

Upon the approval of the naming scheme, your team can begin labeling components. The team should prioritize drafting a manual that details the naming scheme and include it as part of the training program for newly hired data center administrators.

The Best Practices for Cable Component Selection will be discussed in the next series.

Union Network Cabling

When your work requires a unionized cabling group, call on Progressive Office Inc. for your commercial Cat5e/6/6a and fiber cabling projects. Specializing in cabling for data, voice, security and even the latest WiFi and LiFi solutions. Phone: (202) 462-4290

The TIA (Telecommunications Industry Association) and the ISO (International Organization for Standardization) are the primary organizations that oversee the development of structured cabling standards for the industry. Committees formed by the IEEE (Institute of Electrical and Electronics Engineers) provide assistance through testing and setting performance specifications for various standards.

Compliance with standards ensures the functioning of systems at specified levels, backward compatibility, and a greater selection of equipment will exist. General global recognition of standards permit utilizing equipment sourced from various countries inside computer systems. Requirements for the components of optical and copper cabling including cables, assemblies, connectors, cabling spacing and pathways, administration, field testing, and installation are standardized to make worldwide acceptance possible.

Technicians in North America typically use TIA standards, while the rest of the world uses ISO standards. Examples of organizations that set regional and national standards organizations are CENELEC (European Committee for Electrotechnical Standardization), CSA (Canadian Standards Association) and JSA (Japanese Standards Association). Their standards are generally compatible with TIA and ISO.

Different terminology used by TIA and ISO Associations sometimes cause confusion because they refer to the same item. For example, what the TIA terms as Cat5e is what ISO terms to be Class D. However, adherence to standards set by TIA and ISO ensure system cabling requirements are properly implemented in the categories below.

• Insertion Loss – Decrease of signal strength down the transmission line.


• Return Loss – Measurement of signal reflections on the cable.


• NEXT – Near End Crosstalk Loss due to signal coupling.


• Propagation Delay / Delay Skew – Elapsed time for signal to reach other end of cable or the delay between signal arrival at far end on slowest and fastest cable pairs.


• ACR – Difference between insertion loss and NEXT.


• ELFEXT – Identical to NEXT, but for cabling system’s far end.


• PSANEXT / PSAACRF – Power sum alien crosstalk at near end / Power sum alien crosstalk at far end.

Due to ever-increasing data rates, the efforts of the standards organizations are assuming greater importance in terms of ensuring proper system design.

Union Network Cabling

When your work requires a unionized cabling group, call on  Progressive Office Inc. for your commercial Cat5e/6/6a and fiber cabling projects. Specializing in cabling for data, voice, security and even the latest WiFi and LiFi solutions. Phone: (202) 462-4290

As mentioned in Part 1, modern data centers must be flexible, scalable, reliable, and manageable, making best practices required. Part 2 will cover cabling for Modular Data, High Density/High Port Count Fiber Equipment, and Standards.

Modular Data

Increasing in popularity, modular cabling systems for fiber and copper connectivity introduces the plug-and-play concept, which simplifies cable installation and significantly decreases costs and labor. Typically, cables are factory-terminated and tested.

While modular cabling is less costly when the infrastructure is modified in-house, it will not be as flexible because of the possible required commitment to a vendor for ongoing compatibility.

High Density/High Port Count Fiber Equipment

When networking equipment gradually grows in density and port counts rise to several hundred, the proper management of the connected cabling will also require increased effort.

In the past, the direct connection of cables to individual ports of equipment with low port-counts was thought to be manageable. Unfortunately, the same task will be very time consuming for high-density/high-port-count equipment. Eventually, the addition or removal of cables directly connected to these ports will be almost impossible.

The utilization of Multifiber Push-On (MPO) cable assemblies featuring a single connector at one end of cable and multiple duplex breakout cables at the other end will ease cable management.

The concept revolves around pre-connecting high-density/high- port-count Lucent Connector (LC) equipment with LC-MPO fan-out cable to dedicated MPO modules inside a dedicated patch panel. Once completely cabled, this patch panel will work as "remote" ports. Ideally the patch panels should be located on top of the cabling equipment to facilitate access to overhead cabling. This method significantly decreases cluttering of equipment and cables, resulting in improved cable management.

Standards

The ISO (International Organization for Standardization) and TIA (Telecommunications Industry Association) are the main organizations that develop structured cabling standards for the industry. IEEE (Institute of Electrical and Electronics Engineers) committees do the testing and then set performance specifications.

Standards compliance makes sure that systems function at specified levels, allows backward compatibility, and a greater variety of equipment will be available internationally. Widespread global acceptance of standards allows the sourcing and use of equipment manufactured by different countries.

Color Identification and Naming Scheme will be discussed in Part 3.

Union Network Cabling

When union work requires a unionized cabling group, call on Union Network Cabling for your commercial Cat5e/6/6a and fiber cabling projects. Specializing in cabling for data, voice, security and even the latest WiFi and LiFi solutions. Phone: (202) 462-4290

Nowadays offices and homes utilize either a wireless (Wi-Fi) connection or wired network connection. Usually faster than Wi-Fi, wired connections also have lower latency. These two types of network connection continue to progress technologically, providing users ever increasing speeds.

In the case of home networks, the speed of the internet connection is typically the issue, and the cabling may not be a factor. However, a company must consider the specifications of particular cables and how these would meet its requirements in order to properly decide which to select. There can be a vast difference between the network speeds of the various Ethernet cables.

Types

Cables are differentiated by standard categories. Category has been abbreviated to “Cat” by the industry. Currently, the most common cables in use are Cat 5, Cat 5e, Cat 6, and Cat 6a. The newest type is Cat 7. Every type is backward compatible, allowing users to insert a newer cable into a device that was manufactured for an older cable without any compatibility issues arising.

Progress

With every new cable category, users were provided increased speed and decreased crosstalk. Newer category cables provided faster speeds at increased lengths of cable. The following offers comparisons at 100 meters of cable, illustrating the differences between the ethernet cable categories:

Cat 5 - Considered slow and inadequate for business networks, providing up to 100 Mb/second at 100 Mhz.

Cat 5e - provides up to 1 Gb/second internet speed at 100 Mhz.

Cat 6 -provides up to 1 Gb/second, and cable lengths up to 55 meters can give internet speeds of 10 Gb/second at 250

Cat 6a -can provides speeds up to 10 Gb/second, to 100 meters of cable length, at 500 Mhz.

Cat 7 - provides speeds up to 10 Gb/second to 100 meters of cable, at 600 Mhz.

History

Cat 5 was the standard in 1995, Cat 5e became standard in 2001, and Cat 6 was introduced in 2002. Arriving in 2008, Cat 6a is typically the newest cable the majority of companies have used because it is not considered necessary to update to Cat 7 yet. Cat 7a and Cat 8, which were respectively released in 2010 and 2013, are still waiting in the wings.

Union Network Cabling

When union work requires a unionized cabling group, call on Union Network Cabling for your commercial Cat5e/6/6a and fiber cabling projects. We specialize in cabling for data, voice, security and even the latest WiFi and LiFi solutions. Phone: (202) 462-4290