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Digital signal 0 Redirected from DS0
Digital signal 0 (DS0): In T-carrier, a basic digital signaling rate of 64 kb/s, corresponding to the capacity of one voice-frequency[?]-equivalent channel.
Note 1: The DS0 rate forms the basis for the North American digital multiplex transmission hierarchy.
Note 2: The DS0 rate may support twenty 2.4-kb/s channels, or ten 4.8-kb/s channels, or five 9.67-kb/s channels, or one 56-kb/s channel, or one 64-kb/s clear channel.
Source: from Federal Standard 1037C
To carry
a typical phone call, the audio sound is digitized at an 8 kHz sample rate using
8-bit pulse code modulation. Multiple DS0's are multiplexed together on higher
capacity circuits. 24 DS0's make a DS1 signal, which when carried on copper
is the well-known, T-carrier system, T1 (the European equivalent is an E1, containing 32 64 kbit/s channels).
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