Wide Area Network Speeds

Here is the report below, showing some of the WAN speeds. It is a good reference to have it. The following chart relates various circuit types with their respective speeds.

DS0	64 Kb	(1) channel (1/24) of a DS1	Electrical
DS1	1.536 Mb	Also known as a T1	Electrical
DS3	44.736 Mb	(28) DS1s (or T1s) Also a T3	Electrical
STS1	51.840 Mb	(1) DS3 @ 44.736mbits/sec with SONET (Synchronous Optical NET) overhead = 51.840mbits/sec	Electrical
OC-1	51.840 Mb	(1) STS1 on Optical Carrier facilities	Optical
OC-3	155.52 Mb	(3) OC-1s	Optical
OC-9	466.56 Mb	(9) OC-1s (NOT COMMONLY USED)	Optical
OC-12	622.08 Mb	(12) OC-1s or (4) OC-3s	Optical
OC-18	933.12 Mb	(18) OC-1s (NOT COMMONLY USED)	Optical
OC-24	1.244 Gb	(24) OC-1s (NOT COMMONLY USED)	Optical
OC-36	1.866 Gb	(36) OC-1s (NOT COMMONLY USED)	Optical
OC-48	2.488 Gb	(48) OC-1s or (4) OC-12s or (16) OC-3s	Optical
OC-192	9.953 Gb	(192) OC-1s or (4) OC-48s or (64) OC-3s	Optical

 

This multiplexing scheme is set by the equipment manufacturers and has pretty much been adopted as standard in the Telecommunication industry. Therefore, rarely will you see implementations of the less common bandwidth aggregations like OC-9, OC-18, and etc. The OC-3 is technically an exception to this as it was needed to allow the upper-level hierarchy to work.

All speed values are expressed in Kb (Kilo bits per second), Mb (Mega bits per second), or Gb (Giga bits per second).

 

Best,

Oz ozugurlu