The speed of...


This table shows the stated data rates for the most important end-user and backbone transmission technologies.
TechnologySpeedPhysical MediumApplication
GSMmobile telephone service9.6 to 14.4 KbpsRF in space (wireless)Mobile telephone for business and personal use
High-Speed Circuit-Switched Data service (HSCSD)Up to 56 KbpsRF in space (wireless)Mobile telephone for business and personal use
Regular telephone service (POTS)Up to 56 Kbpstwisted pairHome and small business access
Dedicated 56Kbps on frame relay56 KbpsVariousBusiness e-mail with fairly large file attachments
DS064 KbpsAllThe base signal on a channel in the set of Digital Signal levels
General Packet Radio System (GPRS)56 to 114 KbpsRF in space (wireless)Mobile telephone for business and personal use
ISDNBRI: 64 Kbps to 128 Kbps
PRI: 23 (T-1) or 30 (E1) assignable 64-Kbps channels plus control channel; up to 1.544 Mbps (T-1) or 2.048 (E1)
BRI: Twisted-pair
PRI: T-1 or E1 line
BRI: Faster home and small business access
PRI: Medium and large enterprise access
IDSL128 KbpsTwisted-pairFaster home and small business access
AppleTalk230.4 KbpsTwisted pairLocal area network for Apple devices; several networks can be bridged; non-Apple devices can also be connected
Enhanced Data GSM Environment (EDGE)384 KbpsRF in space (wireless)Mobile telephone for business and personal use
satellite400 Kbps (DirecPC and others)RF in space (wireless)Faster home and small enterprise access
frame relay56 Kbps to 1.544 MbpsTwisted-pair or coaxial cableLarge company backbone for LANs toISP
ISP to Internet infrastructure
DS1/T-11.544 MbpsTwisted-pair, coaxial cable, oroptical fiberLarge company to ISP
ISP to Internet infrastructure
Universal Mobile Telecommunications Service (UMTS)Up to 2 MbpsRF in space (wireless)Mobile telephone for business and personal use (available in 2002 or later)
E-carrier2.048 MbpsTwisted-pair, coaxial cable, oroptical fiber32-channel European equivalent of T-1
T-1C (DS1C)3.152 MbpsTwisted-pair, coaxial cable, or optical fiberLarge company to ISP
ISP to Internet infrastructure
IBM Token Ring/802.54 Mbps (also 16 Mbps)Twisted-pair, coaxial cable, or optical fiberSecond most commonly-used local area network after Ethernet
DS2/T-26.312 MbpsTwisted-pair, coaxial cable, or optical fiberLarge company to ISP
ISP to Internet infrastructure
Digital Subscriber Line (DSL)512 Kbps to 8 MbpsTwisted-pair (used as a digital,broadband medium)Home, small business, and enterprise access using existing copper lines
E-28.448 MbpsTwisted-pair, coaxial cable, or optical fiberCarries four multiplexed E-1 signals
cable modem512 Kbps to 52 Mbps
(see "Key and explanation" below)
Coaxial cable (usually uses Ethernet); in some systems, telephone used for upstream requestsHome, business, school access
Ethernet10 Mbps10BASE-T (twisted-pair); 10BASE-2 or -5 (coaxial cable); 10BASE-F (optical fiber)Most popular business local area network (LAN)
IBM Token Ring/802.516 Mbps (also 4 Mbps)Twisted-pair, coaxial cable, or optical fiberSecond most commonly-used local area network after Ethernet
E-334.368 MbpsTwisted-pair or optical fiberCarries 16 E-l signals
DS3/T-344.736 MbpsCoaxial cableISP to Internet infrastructure
Smaller links within Internet infrastructure
OC-151.84 MbpsOptical fiberISP to Internet infrastructure
Smaller links within Internet infrastructure
High-Speed Serial Interface (HSSI)Up to 53 MbpsHSSI cableBetween router hardware and WAN lines
Short-range (50 feet) interconnection between slower LAN devices and faster WAN lines
Fast Ethernet100 Mbps100BASE-T (twisted pair);100BASE-T (twisted pair);100BASE-T (optical fiber)Workstations with 10 Mbps Ethernet cards can plug into a Fast Ethernet LAN
Fiber Distributed-Data Interface (FDDI)100 MbpsOptical fiberLarge, wide-range LAN usually in a large company or a larger ISP
T-3D (DS3D)135 MbpsOptical fiberISP to Internet infrastructure
Smaller links within Internet infrastructure
E-4139.264 MbpsOptical fiberCarries 4 E3 channels
Up to 1,920 simultaneous voice conversations
OC-3/SDH155.52 MbpsOptical fiberLarge company backbone
Internet backbone
E-5565.148 MbpsOptical fiberCarries 4 E4 channels
Up to 7,680 simultaneous voice conversations
OC-12/STM-4622.08 MbpsOptical fiberInternet backbone
Gigabit Ethernet1 GbpsOptical fiber (and "copper" up to 100 meters)Workstations/networks with 10/100 Mbps Ethernet plug into Gigabit Ethernet switches
OC-241.244 GbpsOptical fiberInternet backbone
SciNet2.325 Gbps (15 OC-3 lines)Optical fiberPart of the vBNS backbone
OC-48/STM-162.488 GbpsOptical fiberInternet backbone
OC-192/STM-6410 GbpsOptical fiberBackbone
OC-25613.271 GbpsOptical fiberBackbone

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