Information AboutDs0 |
| CATEGORIES ABOUT DIGITAL SIGNAL 0 | |
| computer and telecommunication standards | |
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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 . To carry a typical phone call, the audio sound is digitized at an 8 KHz sample rate using 8-bit Pulse-code Modulation . Multiple DS0s are Multiplexed together on higher capacity circuits. 24 DS0s make a DS1 signal. When carried over copper wire, this is the well-known T-carrier system, T1 (the European equivalent is an E1 , containing thirty-two 64 kbit/s channels). Note that when a T-carrier system is used, Robbed Bit Signaling can mean that a DS0 channel carried over that system is not an error-free bit-stream. The Out-of-band Signaling used in the European system avoids this. Source: from Federal Standard 1037C E0 ( G.703 ) is related to DS0. Audio data is sent over E0 according to G.711 . |
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