Fiber Cable Manufacturer
1-96 Cores Figure 8 Aerial optical fiber cable with messenger
Cores available: 2,4,6,8,12,24,32,36,48,64,72,96,128,144.
Applications: Aerial networking system
Jackets: PE, HDPE
Multi modes: OM1,OM2,OM3,OM4
Single mode G652D,G655C,G657A1,G657A2
Package:1km/2km/3km/4km each reel.
More Academical knowledge for fiber optical cable:
Aerial Fiber Optic Cable Installation Guide
Planning and Preparation
Aerial fiber optic cable installation is a complicated and time-consuming work. Before starting aerial fiber optic cable installation, some preparation work must be done to ensure the whole installation procedures go on wheels.
—Doing a Pre-survey
The purpose of this survey is to plan the cable route which will determine the aerial cable installation method to be used, as well as the equipment and material requirements. Or if any work should be required along the proposed route before cable deployment begins.
Investigating the characteristics of the ground along the route to eliminate unnecessary problems. Before aerial cable deployment, clearance problems over roadways, driveways, etc. should be taken into consideration. Trees or other obstructions, which could hinder the placing operation, should be noted.
In the survey, choosing the splice locations, and make plans for splice closures and cable slack storage. The selection of splice locations in the survey allows verification of the transmission design and make preparation for cable order lengths. Besides, these locations should not lie in sites where access is inconvenient or hazardous.
Optical fibre cables consist of multiple layers. From the inside to the outside there is first a glass core that allows the light to propagate. Glass cladding surrounds the core. This is surrounded with a plastic and /or Kevlar coating. Depending on the usage the fibre is surrounded with more protective layers.
5 Multiple fibres can be combined together to form one cable. Standard cables can carry up to 912 fibres in a cable.
These cables are put in the ground in cable ducts or strung over poles in the air. When telecommunications companies lay fibre ducts on a route, they lay more empty ducts for later use. So companies might lay 12 or 30 ducts on a route and only fill 2 to 6 of those with fibre, leaving the rest for later. There are also cables available that combine copper twisted pair, coaxial cable, CAT5/6 and multiple fibres. These are used for connecting end-users.
6 Benefits of fibre compared to other physical media
There are several benefits that give an advantage to networks built on fibre:
• Bandwidth on a fibre network is almost unlimited. Compared to satellite networks, there is a higher bandwidth and lower latency/round trip time for fibre networks.7
• Low attenuation and dispersion mean that no or few repeaters and signal regenerators are necessary.
• No influence from electromagnetic fields, corrosion etc., like in coaxial or twisted copper pair cables and no influence from rain, foliage, buildings, etc., as with wireless communications.
• Low weight and size: a thousand twisted pair telephony cables weigh 8 000 kilo/km, whereas 912 fibres weigh 495 kilo/km.8 Metal cables also take more physical space than a similar amount of fibres.
• Costs: The costs of a fibre cable per kilometre are comparable to twisted pair and coaxial cables of similar lengths and similar number of strands. The capacity of fibre is, however, significantly higher.