Bandwidth Equivalencies

Pipe	Speed	Number of DSOs	Equivalent to	European equivalent
DSO	64 Kbps	1	DSO	64 kbps
DS1	1.544 Mbps	24	24 DSO	none (E1=2.048, 32 DSOs)
DS3	44.736 Mbps	672	28 DS1	E3
OC3	155.52 Mbps	2,016	3 DS3	STM1
OC12	622.08 Mbps	8,064	4 OC3	STM-4
OC48	2.488 Gbps	32,256	4 OC12	STM-16
OC192	9.953 Gbps	129,024	4 OC48	STM-64
OC768	39.813 Gbps	516,096	4 OC192

Kbps = kilobits per second (1,000 bits of information transferred per second)
Mbps = megabits per second (1,000,000 bits of information transferred per second)
Gbps = gigabits per second (1,000,000,000 bits of information transferred per second)

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