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About Us

Established in 1982, Multicom, Inc. is a manufacturer and full-line stocking distributor for end-to-end integration of communication solutions.

Multicom stocks over 13,000 products from more than 270 of the world's major manufacturers. These products are used to acquire, process and distribute television, data, voice, security, and traffic control signals over fiber optic, copper, and coax cable.

Single Mode vs. Multi-Mode Fiber Optic Cable

Fiber Optics is sending signals down hair-thin strands of glass or plastic fiber. The light is "guided" down the center of the fiber called the "core". The core is surrounded by a optical material called the "cladding" that traps the light in the core using an optical technique called "total internal reflection."

The core and cladding are usually made of ultra-pure glass. The fiber is coated with a protective plastic covering called the "primary buffer coating" that protects it from moisture and other damage. More protection is provided by the "cable" which has the fibers and strength members inside an outer covering called a "jacket".


     Single Mode Fiber Optic Cable

Single Mode fiber optic cable has a small diametral core that allows only one mode of light to propagate.  Because of this, the number of light reflections created as the light passes through the core decreases, lowering attenuation and creating the ability for the signal to travel faster, further. This application is typically used in long distance, higher bandwidth runs by Telcos, CATV companies, and Colleges and Universities.

 
Above: Single Mode fiber is usually 9/125 in construction.  This means that the core to cladding diameter ratio is 9 microns to 125 microns.
 
What's happening inside the Single Mode fiber:




Multicom’s Fiber Optic Product Line and services also includes stocking and same day shipment of a large quantity and variety of custom-cut fiber optic cable (including loose tube, ADSS, Armored, etc), Corning fiber optics-based products and a wide selection of fiber optic accessories, splitters, jumpers, pigtails, and media converters designed to meet the demanding requirements of data, video, and voice networks
.


     Multimode Fiber Optic Cable

Multimode fiber optic cable has a large diametral core that allows multiple modes of light to propagate.  Because of this, the number of light reflections created as the light passes through the core increases, creating the ability for more data to pass through at a given time. Because of the high dispersion and attenuation rate with this type of fiber, the quality of the signal is reduced over long distances. This application is typically used for short distance, data and audio/video applications in LANs.  RF broadband signals, such as what cable companies commonly use, cannot be transmitted over multimode fiber.

Above: Multimode fiber is usually 50/125 and 62.5/125 in construction.  This means that the core to cladding diameter ratio is 50 microns to 125 microns and 62.5 microns to 125 microns.

What's happening inside the Multimode fiber:


Step-Index Multimode Fiber



Graded-Index Multimode Fiber

Step-Index Multimode Fiber - Due to its large core, some of the light rays that make up the digital pulse may travel a direct route, whereas others zigzag as they bounce off the cladding. These alternate paths cause the different groups of light rays, referred to as modes, to arrive separately at the receiving point. The pulse, an aggregate of different modes, begins to spread out, losing its well-defined shape. The need to leave spacing between pulses to prevent overlapping limits the amount of information that can be sent. This type of fiber is best suited for transmission over short distances.

Graded-Index Multimode Fiber - Contains a core in which the refractive index diminishes gradually from the center axis out toward the cladding. The higher refractive index at the center makes the light rays moving down the axis advance more slowly than those near the cladding. Due to the graded index, light in the core curves helically rather than zigzag off the cladding, reducing its travel distance. The shortened path and the higher speed allow light at the periphery to arrive at a receiver at about the same time as the slow but straight rays in the core axis. The result: digital pulse suffers less dispersion. This type of fiber is best suited for local-area networks.


Multicom Stocks a Wide Variety of Fiber Optic Cable Options, as well as Coax and Composite Camera Cable


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Fiber Optic Cable is the cable of today and the future. We have the fiber cable you need - and will cut and ship custom cable to where you need it, when you need it!
ADSS Cable

ADSS cables feature a dry core design and the high-tension strength capability required for installation in the toughest environmental and electrical conditions.
Armored Cable

Armored fiber optic cable is highly durable and reliable for underground duct and lashed aerial installations (including duct-to-lashed aerial) as well as general Outside Plant installations, including direct buried in harsh environments.
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Multicom Fiber Optic Products
Fiber Optic Technical Resource Guide

RFoG GPON and HFC Networks and Block Diagrams
Fiber Optic Jumpers and Pigtails
Fiber Optic Accessories - Attenuators and Mating Sleeves
Coax Drop Cable
CAT5/6E Data/Telecommunications Cable
A/V Cables
IMSA Traffic Signal Cable
ITS Products Cable
Composite Camera Cable

For over 30 years, Multicom has developed a winning combination of market-leading expertise, quality solutions with the latest technologies, multi-skilled engineers who provide a tailored service, and over 13,000 products in stock to provide you with the easiest and most cost-effective way to converge video, data, WiFi and voice technologies. Learn more about Multicom's expertise:
 
IT and DataComm Solutions WiFi Solutions

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