The signal level for a digital carrier system operating at level one of the North American digital signal hierarchy. A DS-1 corresponds with a T1 in the North American hierarchy. See also digital signal hierarchy and T1.
"DS-1." YourDictionary, n.d. Web. 20 September 2018. <http://www.yourdictionary.com/ds-1>.
DS-1. (n.d.). Retrieved September 20th, 2018, from http://www.yourdictionary.com/ds-1
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