^{EXTREME NETWORK SPEEDS!!}

Oh, how I want my own OC-192 :)

Kbps Kilobits per second

Mbps Megabits per second

Gbps Gigabits per second

OC-n Optical Carrier (Fundamental unit of SONET)

SONET Synchronous Optical NETwork/Synchronous Digital Hierarchy)

STM-1 Synchronous Transport Module, level 1 (starts at 155.52Mbps)

STS-1 Synchronous Transport Signal, level 1 (starts at 51.84Mbps)

T1 = 1.544Mbps

E1 = 2.048Mbps (European)

T3 = 45Mbps

OC-1 = STS-1 = 51.84Mbps

STM-1 = OC-3 = 155.52Mbps (approx)

STM-1 = STS-3 = 3 x STS-1 = 3 x 51.84 = 155.52Mbps

STM-16 = OC-48 = 48 x STS-1 = 48 x 51.84 = 2488.32Mbps

**Network Interface Reference Table**

**(borrowed from Motorola)**
Interface	Medium	Data Rate	Capacity	VT/VC Designation
DS0	Twisted Pair	64 kbps	1 DS0
ISDN BR	Twisted Pair	144 kbps	2B+D (2DS0)
DS1/ISDN PR	Twisted Pair	1.544 Mbps	24 DS0	VT 1.5/VC-11
E1	Twisted Pair	2.048 Mbps	32 DS0	VT 2.0/VC-12
ADSL	Twisted Pair	6.384 Mbps	96 DS0
Ethernet	Coax	10 Mbps	N/A
E3	Coax	34.368 Mbps	16 E1=512 DS0	VC-31
FDDI	Coax/Fiber	100 Mbps	N/A
STS-1	Coax	51.84 Mbps	672 DS0	28 VT 1.5 or 1 DS 3
STS-3	Coax	155.520 Mbps	2,016 DS0	3 STS-1
E4	Fiber	139.264 Mbps	4 E3=2,048 DS0	VC-4
OC-1	Fiber	51.84 Mbps	672 DS0	Optical STS-1
OC-3/STM-1	Fiber	155.520 Mbps	2,016 DS0	3 STS-1 / 1 STM-1
OC-12/STM-4	Fiber	622.080 Mbps	8,064 DS0	12 STS-1 / 4 STM-1
OC-48/STM-16	Fiber	2488.32 Mbps	32,256 DS0	48 STS-1 / 16 STM-1
OC-192/STM-64	Fiber	9953.28 Mbps	129,024 DS0	192 STS-1 / 64 STM-1