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Saturday, 17 August 2013

Bandwidth Technologies

Bandwidth Technologies

Listed below is the technology name followed by Maximum Throughput Speeds and it'sCommon Uses.

[edit section]Bandwidth Information

TechnologyMaximum Throughput SpeedsCommon Uses
GSM mobile telephone services9.6 to 14.4 KbpsWireless technology used for personal and business mobile telephones
Regular telephone (POTS, for Plain Old Telephone Service)Up to 56 KbpsHome and small business access to an ISP using a modem
X.2556 KbpsProvides communication between mainframes and terminals
ISDN64 Kbps to 128 KbpsSmall to medium-size business access to an ISP
IDSL (ISDN Digital Subscriber Line128 KbpsHome and small business access to an ISP
DSL Lite or G.LiteUp to 384 Kbps upstream and up to 6Mbps downstreamLess expensive version of DSL
ADSL (Asymmetric Digital Subscriber Line)640 Kbps upstream and up to 6.1 Mbps downstreamMost bandwidth is from ISP to user
SDSL (Symmetric DSL)1.544 MbpsEqual bandwidth in both directions
HDSL (High-bit-rate DSL)Up to 3 MbpsEqual bandwidth in both directions
Cable modem512 Kbps to 5 MbpsHome or small business to ISP
VDSL (very-high-rate DSL)Up to 55 Mbps over short distancesFuture technology of DSL under development
802.11b wirelessUp to 11 MbpsCurrently, most popular wireless
802.11a wirelessUp to 54 MbpsShorter range then 802.11b, but faster
802.11g wirelessUp to 54 MbpsCompatible with 802.11b, but faster
Frame relay56 Kbps to 45 MbpsBusinesses that need to communicated internationally or across the country
Fractional T1N times 64 Kbps (where n is the number of channels or portions of a T1 leasedCompanies expecting to grow into a T1 line, but not yet ready for a T1
T11.544 MbpsTo connect large companies to branch offices or an ISP
Token Ring4 or 16 MbpsUsed for local network
Ethernet10 or 100 MbpsMost popular technology for a local network
T345 MbpsLarge companies that require a lot of bandwidth and transmit extensive amounts of data
OC-152 MbpsBase rate of transmission used by SONET and ATM. Multiples are called Optical Carrier levels (OCx).
FDDI100 MbpsSupports network backbones from the 1980s and early 1990s; also used to connect LANs across multiple buildings
ATM25, 45, 155, or 622 MbpsLarge business networks and LAN backbones; uses different OC levels
OC-3155 MbpsInternet or large corporation backbone
Gigabit Ethernet1 GbpsLatest Ethernet standard
OC-241.23 GbpsInternet backbone, uses optical fiber
OC-25613 GbpsMajor internet backbone, uses optical fiber
SONET (Synchronous Optical Network)52 Mbps to 20 GbpsMajor backbones make use of different OC levels

[edit section]Ethernet cabling systems

Cable systemsSpeedCables and ConnectorsMaximum Cable length
10Base2 (ThinNet)10 MbpsCoaxial uses a BNC connector185 meters or 607 feet
10Base5 (ThickNet)10 MbpsCoaxial uses an AUI 15-pin D-shaped connector500 meters or 1640 feet
10BaseT and 100BaseT (twisted-pair)10 or 100 MbpsUTP or STP uses an RJ-45 connector100 meters or 328 feet
10BaseF, 10BaseFL, 100BaseFL, 100BaseFX, 1000BaseFX, or 1000BaseX (fiber-optic)10 Mbps, 100 Mbps, or 1 GbpsFiber-optic cable use an ST or SC fiber-optic connector500 meters up to 2 kilometers (6,562 feet)
1000BaseT (Gigabit Ethernet)1 GbpsTwisted pair cable with RJ-45 connectors or Fiber-optic100 meters or 328 feet

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