Tag Archives: networking cables

Corporations that have subsidiaries located in many countries worldwide, as well as a smaller company with a handful of departments and employees, need a well-designed network that connects all their computers, printers, servers, and more.

An improperly installed network can result in chaos for an entire organization as it expands. In contrast, a well-designed structured cabling system allows a network to function smoothly even when it is growing rapidly.

During this period of increasingly sophisticated technology, structured cabling is the right answer for building an efficient and cost-effective network. There are numerous companies around the world that specialize in installing structured cabling, but finding the right team for your company will require due diligence.

Many companies undergoing growth focus on revamping existing structured cabling to ensure an uninterrupted flow of an increasing volume of communications and data. They hire a team of specialists who provide guidance on the cabling that will be ideal for their new infrastructure.

Designing and planning a new network revolves around implementing structured cabling solutions that will help a company meet its business needs. There are a handful of basic guidelines for the installation as summarized below:

• Ethernet cable for office buildings, data centers, call centers, small offices, and warehouses


• Fiber cable, multi-mode and single mode, for long distance calls and interactions that are free of interference


• Telco-level network wiring, patch panels, and jacks

In the case of a small office, a brand new space yet to be wired, an existing site undergoing remodeling, or a skyscraper filled with office suites, installing well-designed structured cabling that ensures an efficient and expandable network, is the key to success for the great majority of businesses. Properly installed structured cabling helps ensure the rapid and continuous flow of data, the most valuable asset of a modern company.

Progressive Office Cabling

Founded in 1986, Progressive Office’s success has been a direct result of years of commitment to seeking solutions on behalf of our clients in the Washington, D.C. and New York City areas. Efficiently working together, Progressive teams get cabling installed and operating as fast as possible while minimizing disruption and downtime. Call our toll free number (800) 614-4560 today.

The crossover cable connects two Ethernet network devices to each other. They were invented for temporarily supporting host-to-host networking when a network router or another intermediary device is not available. Although crossover cables appear the same as a standard straight-through (patch) Ethernet cable, their internal wiring structures are different.

Straight Through vs. Crossover

A straight-through cable is used for connecting two different kinds of devices, such as a network switch to a computer. In contrast, a crossover cable is for connecting two devices that are identical.

The straight-through cable’s ends can be wired in any manner, but both ends must be identical. This is different from the crossover cable’s internal wiring, which reverses the signals for receiving and transmitting. The first and third wires and the second and sixth wires are crossed.

High-quality Ethernet crossover cables have special markings which allow users to distinguish them from straight-through cables. They are often red in color and the word "crossover" will appear on its casing and packaging.

Crossover Cable Needs

Crossover cables came into use during the 1990s and 2000s because the most common types of Ethernet were unable to support direct cable connections between hosts. Intended for using specific wires for both receiving and transmitting signals, the original and Fast Ethernet standards required the communication of two endpoints through an intermediary device to avoid conflicts.

The Ethernet feature MDI-X has auto-detection for the prevention of signal conflicts, enabling the Ethernet interface to automatically determine and negotiate the expected signaling convention of the device at the other end of the cable. The majority of home broadband routers and Gigabit Ethernet adopted MDI-X.

As a result, crossover cables are only necessary for the connection of two Ethernet client devices if they are not configured for Gigabit Ethernet. Nowadays, Ethernet devices are compatible with crossover cables because they can automatically detect them.

Ethernet Crossover Cables Usage

Crossover cable usage should be limited to direct network connections. When a user tries connecting a computer to an antiquated router or network switch via a crossover cable rather than a standard cable, the link can be prevented from working.

Progressive Office Cabling

Founded in 1986, Progressive Office’s success has been a direct result of years of commitment to seeking solutions on behalf of our clients in the Washington, D.C. and New York City areas. Efficiently working together, Progressive Office teams get cabling installed and operating as fast as possible while minimizing disruption and downtime. Call our toll free number (800) 614-4560 today.

If it has been a while since your company has upgraded your network cabling, you and your team may not be achieving your potential. As you know, an organization’s IT network is the very heart of its operations. Lacking a network that is up-to-date, staff members will not be as efficient and productive as possible.

Updating from Point-to-Point Cabling

The update that yields the most benefits is having your network make the transition from an outdated point-to-point cabling system to a far more effective structured cabling system. As you may know, there are only two ways for transmitting data over network cables. Numerous companies persist on using point-to-point cabling. Unfortunately, it tends to become problematic, especially when a company needs to significantly expand the network’s size and capabilities. Let’s dig deeper to understand the reasons.

Point-to-point cabling directly connects a switch, device, network, a server, or network, to another network component via fiber optic cable. For the last few decades, this wiring method provided an innovative way to swiftly build a network. However, during that period, the majority of networks at IT departments were not large.

Nowadays, as networks expand and speedy transmissions of massive data amounts become routinely expected, the maintenance of outdated point-to-point cabling systems, along with the thousands of cables required for operations, becomes a large burden on a company’s IT resources.

As a result, organizations have transitioned to structured cabling systems. Rather than directly connecting every single network component to another, a structured cabling system directly links storage units and servers to a communication backbone.

Installed in every part of a facility, local cabling panels are linked to the communication backbone with only one cable. This enables users to easily connect their devices to the whole network by connecting a cable to the nearest cabling panel.

Part 2 will discuss the advantages of upgrading to Structured Cabling.

Progressive Office Cabling

Founded in 1986, Progressive Office’s success has been a direct result of years of commitment to seeking solutions on behalf of our clients in the Washington, D.C. and New York City areas. Efficiently working together, Progressive Office teams get cabling installed and operating as fast as possible while minimizing disruption and downtime. Call our toll free number (800) 614-4560 today.

As mentioned in Part 1, cabling utilized for network infrastructure is a crucial aspect of networking, growing in importance as new technologies are introduced. Although wireless technology has made great advancements, existing computer networks are still using cables for transferring data. Part 2 will cover Fiber Optics, USB Cables, and Crossover Cables.

Fiber Optics

In contrast to older wiring, fiber optic network cables utilize strands of glass and pulses of light to carry data. Although composed of glass, these cables can be bent and have proven their utility in wide area network (WAN) installations in office buildings, especially when long distance runs are necessary and a high volume of communication traffic is typical.

The two main fiber optic cable standards are single mode, the 100BaseBX standard, and multimode, the 100BaseSX standard. Due to single mode's higher bandwidth capacity, it is typically used by long distance telecommunications networks. On the other hand, local networks commonly utilize multimode because of its lower cost.

USB Cables

USB (Universal Serial Bus) cables, which feature twisted pair wiring, are typically used to connect a peripheral device, such as a mouse, to a computer. Dongles or special network adapters also permit the indirect connection of an Ethernet cable to a USB port.

Serial & Parallel Cables

As numerous PCs during the 1980s and early 1990s did not have Ethernet capability, along with the fact USB did not yet exist, now obsolete serial and parallel interfaces were occasionally utilized for networking PCs together. As an example, null modem cables connected the serial ports of two PCs, allowing 0.115 to 0.45 Mbps data transfer.

Crossover Cables

A null modem cable belongs in the category of crossover cables because it joins two network devices of the identical type, like two network switches or two PCs. Ethernet crossover cable usage was most commonly found in home networks years ago when two PCs were directly connected. Currently the majority of home networks are equipped with routers featuring crossover capability, making crossover cables unnecessary.

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

Cabling utilized for network infrastructure is a crucial aspect of networking, and it has grown in importance as new technologies are introduced, including virtualization, wireless access points, blade servers, network storage devices, etc.

Although wireless technology has greatly advanced, most of the existing computer networks are still using cables as the media for transferring data. Each standardized type of network cable is utilized for a specific purpose as discussed below.

Coaxial Cables

Patented in 1880 (yes, that long ago!), coaxial cable is most familiar as the cable that connects TV sets to their antennas and also as the standard for 10 Mbps Ethernet, which was common in the 1980s and early 1990s. During this time, networks utilized two coaxial cable types, thicknet, the 10BASE5 standard, or thinnet, the 10BASE2 standard. Composed of an inner copper wire surrounded by insulation and shielding, the stiff quality of these cables made them difficult to install and maintain.

Twisted Pair Cables

During the 1970s, Ethernet was developed at Xerox, which began collaborating with Intel and DEC for its standardization. The initial specifications, titled the Ethernet Blue Book or DIX from their three company initials, was published in 1980.

In the 1990s, twisted pair cables became the primary cabling standard of Ethernet, beginning at 10 Mbps with Category 3 or Cat3, which was followed by 100 Mbps Cat5 and Cat5e and up to 10 Gbps (10GBASE-T). Ranging up to eight wires wound together in pairs, this type of cabling is intended to minimize electromagnetic interference.

Unshielded Twisted Pair (UTP) and Shielded Twisted Pair (STP) are the two chief twisted pair cable types standardized by the industry. Due to lower manufacturing costs, modern Ethernet cables utilize UTP wiring. STP cabling is used by other types of networks like Fiber Distributed Data Interface (FDDI). Clearly the most common network cable type globally, UTP cable is utilized for both networking and for the traditional telephone (UTP-CAT1) cabling.

UTP-CAT5e or Cat5e has become the most common UTP cable as it replaced coaxial cable, which was unable to cope with the increasing demand for networks that were faster and more reliable.

Part 2 will cover Fiber Optics, USB Cables, and Crossover Cables.

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