A DS level and framing specification for digital signals in the North American digital transmission hierarchy. A DS2 signal uses 96 PCM channels and has a transmission rate of 6.31 Megabits per second, twice that of DS1C.
communications The third DS level, a framing specification for digital signals in the North American digital transmission hierarchy. A DS3 signal has a transmission rate of 44.736 Megabits per second. DS3 is used, for example, on T3 synchronous Integrated Services Digital Network lines. (1995-01-12)
1. . Directory System Agent 1. digital subtraction angiography 2. Direct Selling Association
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