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Optical Carrier Level 12 or the acronym OC12 is most often made up of what is called a (Synchronous Optical Network) or SONET ring to maintain it's integrity during high speed bandwidth transmissions. A T1/DS1 for Business is more dependable than Cable OC-1 or also known as the term SONET. An OC1 uses ATM switches, as OC-X does and runs at 51 million bits per second or 51 Mbps. OC-X uses optical fiber The 3 famous data rates are as follows that operate over optical fiber and twisted pair cables which are 10 Mbps-10Base-T Ethernet, 100 Mbps-Fast Ethernet and 1000 Mbps-Gigabit Ethernet. Packets are forwarded along a Label Switch Path or (LSP), where each label switch router (LSR) prioritizes each label whether it be Data, Video, Voice, etc. solely based on the contents of the label. (3) OC-1 Lines/(3) STS-1 frames concatenates into a single OC-3 data stream SPE (Synchronous Payload Envelope) is the electronic envelope that transmits the data over the OC12 Line also known as the Payload. Codec G.722 transmits at 48 Kbps, 56 Kbps and 64 Kbps An OC3 Line is also known as STS-3 (Synchronous Transport Signal) |
