Coaxial Cable
Jul/090
Coaxial Cable
Electric Equipment, Tools, Meters
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 Astatic A8x100 RG8X CB Coaxial Cable 100 NEW  US $12.27
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 T25 Coaxial Cable Staples 1000 9 16 14mm Staples US $.99
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 Compression Connectors for Coaxial Cable US $.49
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 CABLE GENERATOR PHONE TONE PROBE TRACER COAXIAL TRACKER US $28.88
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 COAXIAL CABLE BANANA TO CROCODILE CLIP TEST LEAD WIRE US $.19
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 Coaxial Cable BNC M to Crocodile Clip Test LeadBLC US $9.99
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 Huber Suhner Sucoflex 102E RF Coaxial Cable 40GHz 2 US $150.00
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 45° Corner Block Guide for Coaxial Cable Pole Mounted US $29.99
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 BNC Male to BNC Male Coaxial Jumper RG58 Test CableBBA US $.99
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 BNC Male to RCA Male Coaxial Jumper RG58 Test CableBCA US $.99
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 RG 174 U Coaxial Cable Roll of 100 US $4.95
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 200 ft LMR400 75 Times Microwave Coaxial Cable PL 259 US $154.95 |
 POCKET TONER CABLE TRACKER TOOL TESTER TV RG6 COAXIAL US $11.90
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 Coaxial Cable Banana to Crocodile Clip Test LeadBC US $9.99
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 W L GORE OUR01R010240 COAXIAL CABLE US $125.00
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 45 ERICSSON PRM 513 1782 00230 TNC COAXIAL CABLES NEW US $3.99
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 Gardner Bender PSW 100 1 4 Coaxial Cable Staples NIB US $4.99
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 LMR400 Low Loss Coaxial Cable 100 ft N Male Connectors US $114.95 |
 45 ERICSSON RPM 513 1782 00120 TNC COAXIAL CABLESNEW US $3.99
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 G70260 Anritsu MJ0576B Coaxial Test Cable NIB US $19.99
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 14 NEW Amphenol Coaxial Cable Connector US $9.99
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 BNC Male to BNC Male Coaxial Jumper RG58 CableBBA US $6.99
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 Heavy Duty F Coaxial Cable Connector US $.99
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 Andrew Heliax 5 8 Coaxial Cable Connectors LDF45 50 US $130.00
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 Coaxial Cable Banana to Crocodile Clip Test Lead Wire US $1.99
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 Kliens VDV110 045 Katapult Coaxial Cable Stripper US $1.99
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 New Pocket Toner PT1 Coaxial Cable Toner US $23.99
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 New Andrew LDF4 50A Coaxial Heliax 1 2 Cable 500 Feet US $850.00
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 06 02617 14 N Male to MC Card Plug Coaxial Cable Wi Fi US $12.95
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 Raychem Thermax RG302 U Bulk Coaxial Cable RG 302 U NEW US $2.95
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 1BNC RG58 COAXIAL CABLE CRIMP CROCODILE CLIP TEST LEAD US $11.35
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 SUHNER SUCOFLEX 100 RPM513 Coaxial cable DC 265GHz US $50.00
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 3 RG 8X Double Shielded Coaxial Cable w PL 259 Conns US $6.95
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 RG6 58 59 62 COAXIAL CABLE Tool CUTTER STRIPPER CRIMPER US $6.79
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 Coaxial Cable BNC Male to Dual Alligator Test Clip lead US $5.45
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 6 Jumper RG 8X Coaxial Cable w GOLD PIN PL 259 Conn US $4.95
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 Coaxial Cable clips for RG6nail clipswire BLACKinpt US $4.50
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 Thermax M17 60 RG142 MIL C 17 Coaxial Cable 48 US $24.99
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 300FT COMMSCOPE 5940R RG 11 QUAD SHIELD COAXIAL CABLE US $39.95
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 05 01985 Times Microwave SMA Coaxial Cable Pigtail Coax US $14.95
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 10x BNC Male to BNC Male Coaxial Jumper RG58 CableBBA US $39.00
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 Agilent 54855 61620 Coaxial Cable Assy Brand New US $199.99
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 05 01757 6 SMA Male to BNC Female RG 316 Coaxial Cable US $13.95
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 25ft Times LMR400 50Ohm Coaxial Cable N male Connectors US $37.95 |
 N type F to MCX M SMA M Coaxial Adapter Teflon Cable US $9.99
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 100Coaxial Cable BNC M to Crocodile Clip Test LeadBLC US $245.00
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 07 03061 6 Thermax SMA Male Male Coaxial Cable RG 178 US $9.95
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 Tool Kit Crimper Stripper Cutter Coaxial Cable Connecto US $33.00
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 10 04212 10 SMA Male BNC Female Coaxial Cable RG 174 US $12.95
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 CATV Satellite TV RG6 RG59 Coax Coaxial Cable Tester Nw US $23.99
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 Cable Coaxial Stripper PRT 659 SUV TOR 1C 6 6 659 59 59 US $8.00
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 1000FT BELDEN 1505A PRECISION HDTV VIDEO COAXIAL CABLE US $269.95
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 10 04214 10 BNC Male to SO 239 Coaxial Cable RG 174 US $12.95
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 08 03551 25 RG 316 Mil Spec Grade SMA Coaxial Cable US $12.95
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A transmission medium is required to carry information from a source to a destination. The information is usually a signal that has to travel a long distance. For this, the transmission media can be wired or wireless. In wired transmission, the signal travels along the cable from one device to another. But in wireless transmission the electromagnetic waves are transmitted without using a physical conductor. There are three types of cables such as.
1- Twisted pair cable
2- Coaxial cable
3- Fiber optic cable
Twisted-Pair Cable
A twisted pair cable consists of two copper conductors, each one with its own plastic insulation and twisted together. One wire carries the signal and other is used as ground reference. The advantage of twisting is that both wires are equally affected by external influences. So the unwanted signals are canceled out as the receiver calculates the difference between signals in two wires.
This cable is of two types such as.
1- UTP (unshielded twisted pair)
2- STP (shielded twisted pair)
STP cable has one extra metal shield covering the insulated twisted pair conductors. But this is absent in UTP cables. The most common UTP connector is RJ45.
The unshielded twisted pair cable is classified into seven categories based on cable quality. Category 1 of cables is used in telephone lines with data rate around 0.1 Mbps. Whereas Category 5 used in LANs having 100 Mbps data rate.
Performance of twisted-pair cable is measured by comparing attenuation versus frequency. Attenuation increases with frequency above 100 kHz.
These cables are used in telephone lines to provide voice and data channels. DSL lines and Local area networks also use twisted pair cables.
Coaxial Cable
Coaxial cable (coax) carries high frequency signals than twisted-pair cables. Coax has a central core conductor of solid wire enclosed in an insulator, which is covered by an outer conductor of metal foil. This outer conductor completes the circuit. Outer conductor is also enclosed in an insulator, and the whole cable is protected by a plastic cover.
These cables are categorized by RG (radio government) ratings. RG-59 used for Cable TV, RG-58 for thin Ethernet and RG-11 for thick Ethernet. The connector used in these cables is called BNC connector; it is used to connect the end of the cable to a device.
Though the coaxial cable has higher bandwidth, but its attenuation is much higher compare to twisted-pair cables. It is widely used in digital telephone networks where a single cable can carry data up to 600 Mbps. Cable TV networks use RG-59 coaxial cable. Traditional Ethernet LANs also use this cable.
Fiber-Optic Cable
A fiber optic cable transmits signals in the form of light. Optical fiber use reflection to guide light through a channel. It consists of two main parts: core and cladding. Core is denser compare to cladding and is made up of plastic or glass. Cladding acts as a protective cover to core. The difference in density of core and cladding is such that a beam of light moving through the core is reflected off the cladding, instead of being refracted into it.
Two modes of propagation of light are possible in optical fiber such as: multimode and single mode. Multimode fiber allows multiple beams from a light source move through the core. In multimode step-index fiber, the core density remains constant from the center to the edges. But in multimode graded-index fiber, core density gradually decreases from the center of the core to its edge. Graded-index fiber creates less distortion in the signal compare to step-index.
There are two types of connectors for fiber optic cables. The SC connector is used for cable TV, and ST connector used for connecting cable to networking devices. Attenuation in fiber optic cable is very low compare to other two types of cable. It provides very high bandwidth and immunity to electromagnetic interference. Light weight and greater immunity to tapping makes it more preferable cable.
Fiber optic cable is often used in backbone networks because of its wide bandwidth and cost effectiveness. Local area networks such as 100Base-FX network and 100Base-X use this cable. Also it is used by cable TV companies.
http://engineering360.blogspot.com/2009/10/types-of-data-transmission-cables.html
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Article Source: ArticlesBase.com - Types of Data Transmission Cables
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