DS0

Digital Signal 0 (DS0) is a basic digital signaling rate of 64 kbit/s, corresponding to the capacity of one voice-frequency-equivalent channel. The DS0 rate forms the basis for the digital multiplex transmission hierarchy in both the European and North American systems, for both the early plesiochronous systems such as T-carrier, and for modern synchronous systems such as SDH/SONET. The DS0 rate may support twenty 2.4 kbit/s channels, ten 4.8 kbit/s channels, five 9.67 kbit/s channels, one 56 kbit/s channel, or one 64 kbit/s clear channel.
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Abbreviation for digital signal 0.

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.

<communications> The zeroth DS level, having a transmission rate of 64,000 bits per second (64 kb/s), intended to carry one voice channel (a phone call).
(2001-03-18)