T-1 Carrier System - 1.544 Mb/s

• one frame per 125 microseconds

• data rate = 8000 * 193 = 1.544 Mb/s

8 bits

8 bits

8 bits

ï ï ï

channel 1

channel 2

channel 3

frame bit

TDM of 24 voice channels (frame is 193 bits)

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