Specifications

Glossary
8
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
DS1 (Digital Signal
1)
A digital transmission standard that carries 24 individual channels in a bipolar, high-speed line signal
at 1.544 Mbps. DS1 signal level is ±3V.
DSI (Digital Speech
Interpolation)
An algorithm that analyzes DS0 voice bits for non-speech codes. Suppresses these bits to conserve
packet line bandwidth and inserts a code to indicate to the far end that these bits have been removed.
Similar to DFM for data channels. Also, referred to as VAD (Voice Activity Detection).
DTE (Data Terminal
Equipment)
As defined by the RS-232 standard, any device that generates or utilizes information. (See also, DCE.)
D