Ds1 bandwidths

DS1 circuit is made up of twenty-four 8-bit channels (also known as time slots or DS0's), each channel being a 64 kilo bites per second DS0 multiplex pseudo-circuit. A DS1 is also a full-duplex circuit, meaning, in theory, the circuit can send 1.544 mega bites per second and receive 1.544 Mbit per second concurrently. A total of 1.536 mega bites  per second of bandwidth is achieved by sampling each of the twenty-four 8-bit DS0's 8000 times per second. This sampling is referred to as 8-kilo hertz sampling. An additional 8 kilo bites per second is obtained from the placement of a framing bit, for a total of 1.544 Mbit/s, calculated as follows:

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