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OC3 Bandwidth Facts and Optical Carrier 3 (OC-3) Info

OC3 Bandwidth, OC3 Facts and OC-3 Providers 

  • An OC3 transmits data at a rate of 155.52 megabits per second
  • An OC3 is also known as STM-1x (Synchronous Transport Module)
  • An OC3 Line is also known as STS-3 (Synchronous Transport Signal)
  • The 155.52 Mbps has a payload of 148.608 Mbps an overhead of 6.912 Mbps which includes path overhead using fiber optics
  • OC-3 are called OC-3c when not being multiplexed from a single data source, the letter "c" (standing for concatenated)
  • OC-3c as mentioned above concatenates (3) STS-1(OC-1) frames into a single OC-3 mirrored stream of data

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