A number of terms and abbreviations are also used for data rates. This can also be a confusing area, but the following table offers a little insight:
Term
Line Rate
Also known as/Comparable to
E1
2.048 Mbps
T1
1.544 Mbps (24 x 64 kbps)
DS1
T2
6.312 Mbps
DS2
T3
44.736 Mbps
DS3
Ethernet
10 Mbps
Fast Ethernet
100 Mbps
Token Ring
4 or 16 Mbps
DS0
64 kbps
1.544 Mbps
OC-1
51.84 Mbps
STS-1
OC-3
155.52 Mbps
STS-3 & STM-1
OC-12
622.08 Mbps
STS-12 & STM-4
OC-24
1244.16 Mbps
STS-24 & STM-8
OC-48
2488.32 Mbps
STS-48 & STM-16
OC-96
4976.64 Mbps
STS-96 & STM-32
OC-192
9953.28 Mbps
STS-192 & STM-64
ISDN Basic (2B+D)
2 x 64 kbps & 1 x 16 kbps
ISDN B Channel
ISDN D Channel
16 kbps
ISDN Signalling Channel
ISDN Primary (24B+D)
24 x 64 kbps & 1 x 16 kbps
Sonet
51.84 Mbps - 10 Gbps
SDH
155 Mbps - 10 Gbps
PDH
T1/E1 - 565 Mbps
