Bridging the network divide

 

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Solutions and Services Portfolio

Network Cabling Systems

Voice and Data Cabling - Network cabling carries the lifeblood of your organization - information. To minimize expensive data network problems and to add value to your business, River Valley Communications follows strict installation and testing guidelines adhering to EIA/TIA and BICSI.

Coax Cabling - A critical piece of the infrastructure puzzle for our legacy customers. Coax has been the medium of choice for high fidelity audio, television, satellite and broadband communications and is till used widely even though in most arena's they have been replaced by modern solutions.

Video Cabling
- Video cabling can be closely associated with coaxial cable, because most video applications require
coax, but we also install twisted pair cable for certain video applications based on the complexity at site and requirements.

Twisted Pair Cabling
– Unshielded Twisted Pair has been designed for use in voice applications and local area networks. Because of the relatively low cost, this cable is widely used and is available in several different performance categories adhering to EIA/TIA standards.

Fiber Optic Cabling
- We install, terminate and test multi-mode and single-mode fiber. We've kept abreast of
advances in the manufacture, termination and testing standards of fiber optic cabling systems and use advanced splicing techniques for our installations.

Data Center Cabling
- Because the server room is the centralized brain of your structured cabling system, we take special care to design and install it according to the highest standards. We are the leading industry solutions provider in the DATA Centre arena and have wide levels of experience and expertise to understand customers needs and to put them to work.


Network Cabling Systems - Coaxial Cabling

Coaxial cables carry a nominal impedance of between 35 and 185 ohms. The three most common coax cables are 50 ohms (most widely used in thin-net Ethernet), 75 ohms (the cable your most likely using at home for your TV or cable modem) and 93 ohms, which is rarely used.

Coax cable can support much higher bandwidths than unshielded twisted pair (UTP) cable. The most efficient transfer of energy, over coax, occurs when all parts of the system have the same impedance. For example, a transmitter, interconnecting cable, and receiver should all have matching impedance. This need for impedance matching is especially critical at higher frequencies, where the consequences of mismatches are more severe.

Knowing how to install and terminate coax cable properly is critical to achieving impedance matching. Knowledge and selection of the best available materials greatly increases efficiency. The most common type of coax, called Flexible Coax, is a flexible cable, which uses a braided shield of extremely fine wires. This braid helps to make the coax flexible, but at a cost: energy or RF (radio frequency) signals leak through the small gaps in the braid. To combat this attenuation (energy loss), manufacturers have added several layers of braid and placed thin foil between the layers. This provides better coverage for greater shielding effectiveness. We normally use a quad shield (two layers of braid, two of foil) for 75-ohm applications.

Even though coax makes up a small percentage of our total installations, it is still a critical piece of the infrastructure puzzle for our customers. Coax has been the medium of choice for high fidelity audio, television, satellite and broadband communications. This technology is still widely used in the television broadcast industry and as a result of the availabilty of high bandwidth the same is now being migrated by ISP's as a channel for transmission of data (widely used for internet).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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