Tinklo terminų ir trumpinių žodynėlis
AC – Alternating current. A signal which alternates its polarity between positive and negative with respect to an earth ground. Dynamic signals such as audio, radio waves and utility power are typically AC.
ACK – Abbreviation for the Acknowledge response in data communications.
ADC – Analog to Digital Converter.
ACR – Attenuation to Crosstalk Ratio. ACR is a comparison of signal strength to noise interference and is used as a “bandwidth” indicator. The ratio is not a test but a comparison between two previous test results. I compares signal loss (attenuation) to noise interference (NEXT). The larger the ACR, the better the transmission will be.