Post by JorP on Oct 28, 2002 5:29:24 GMT -5
Maximum Dedicated Bandwidths
How fast is fast? This chart puts into perspective line speeds used in Internet backbones, LANs, and WANs.
13.21 Gbps......................... OC-255
10 Gbps.............................. OC-192
4.976 Gbps......................... OC-96
2.488 Gbps......................... OC-48, STS-48
1.866 Gbps......................... OC-36
1.244 Gbps......................... OC-24
933.12 Mbps....................... OC-18
622.08 Mbps....................... OC-12, STS-12
466.56 Mbps....................... OC-9
155.52 Mbps....................... OC-3, STS-3
100 Mbps............................ CDDI, FDDI, Fast Ethernet, Category 5 cable
51.84 Mbps......................... OC-1, STS-1
44.736 Mbps....................... T-3, DS-3 North America
34.368 Mbps....................... E-3 Europe
20 Mbps.............................. Category 4 cable
16 Mbps.............................. Fast Token Ring LANs
10 Mbps.............................. Thin Ethernet, category 3 cable, cable modem
8.448.................................. Mbps E-2 Europe
6.312 Mbps......................... T-2, DS-2 North America
6.144 Mbps......................... Standard ADSL downstream
4 Mbps................................ Token Ring LANs
3.152 Mbps......................... DS-1c
2.048 Mbps......................... E-1, DS-1 Europe
1.544 Mbps......................... ADSL, T-1, DS-1 North America
128 Kbps............................ ISDN
64 Kbps.............................. DS-0, pulse code modulation
56 Kbps.............................. 56flex, U.S. Robotics x2 modems,
33.6 Kbps........................... 56flex, x2 modem communications rate
28.8 Kbps........................... V.34, Rockwell V.Fast Class modems
20 Kbps.............................. Level 1 cable, minimum cable data speed
14.4 Kbps........................... V.32bis modem, V.17 fax
9600 bps............................ modem speed circa early 1990s
2400 bps............................ modem speed circa 1980s
Units of Measurement
bit= smallest unit of digital information, i.e. ones & zeros
byte= a set of bits
bps= bits per second
Kbps= kilobits per second =1000 bits per second
Mbps = Million bits per second =1,000,000 bits per second
Gbps = Gigabits per second = 1,000,000,000 (one billion) bits per second
Tbps = Terabits per second = 1,000,000,000,000 (one trillion) bits per second
from Webopedia.com
How fast is fast? This chart puts into perspective line speeds used in Internet backbones, LANs, and WANs.
13.21 Gbps......................... OC-255
10 Gbps.............................. OC-192
4.976 Gbps......................... OC-96
2.488 Gbps......................... OC-48, STS-48
1.866 Gbps......................... OC-36
1.244 Gbps......................... OC-24
933.12 Mbps....................... OC-18
622.08 Mbps....................... OC-12, STS-12
466.56 Mbps....................... OC-9
155.52 Mbps....................... OC-3, STS-3
100 Mbps............................ CDDI, FDDI, Fast Ethernet, Category 5 cable
51.84 Mbps......................... OC-1, STS-1
44.736 Mbps....................... T-3, DS-3 North America
34.368 Mbps....................... E-3 Europe
20 Mbps.............................. Category 4 cable
16 Mbps.............................. Fast Token Ring LANs
10 Mbps.............................. Thin Ethernet, category 3 cable, cable modem
8.448.................................. Mbps E-2 Europe
6.312 Mbps......................... T-2, DS-2 North America
6.144 Mbps......................... Standard ADSL downstream
4 Mbps................................ Token Ring LANs
3.152 Mbps......................... DS-1c
2.048 Mbps......................... E-1, DS-1 Europe
1.544 Mbps......................... ADSL, T-1, DS-1 North America
128 Kbps............................ ISDN
64 Kbps.............................. DS-0, pulse code modulation
56 Kbps.............................. 56flex, U.S. Robotics x2 modems,
33.6 Kbps........................... 56flex, x2 modem communications rate
28.8 Kbps........................... V.34, Rockwell V.Fast Class modems
20 Kbps.............................. Level 1 cable, minimum cable data speed
14.4 Kbps........................... V.32bis modem, V.17 fax
9600 bps............................ modem speed circa early 1990s
2400 bps............................ modem speed circa 1980s
Units of Measurement
bit= smallest unit of digital information, i.e. ones & zeros
byte= a set of bits
bps= bits per second
Kbps= kilobits per second =1000 bits per second
Mbps = Million bits per second =1,000,000 bits per second
Gbps = Gigabits per second = 1,000,000,000 (one billion) bits per second
Tbps = Terabits per second = 1,000,000,000,000 (one trillion) bits per second
from Webopedia.com
