ISP Information:
This means in unison, or many things at the same time. It most commonly refers to a computer with multiple processors that can all function independently at the same time. It also refers to cabling or connection standards that use several wires to transmit data. See also serial. ISP Glossary:
Parallel - ~ Does anyone know how the normal 56K modem differentiate between the~ sender and the receiver?In V.90, one modem is digitally connected to the PSTN (i.e.talks 64kbps G.711 PCM) and the other is analog connected(i.e. talks 4kHz audio to a 2-wire POTS line.) So each modemKNOWS whether it's analog or digital.When the modems train, they start off (in V.8 [and optionallyfirst in V.8bis]) by telling each other what they can do. Soin a V.90 connection, the analog modem will know that it'speer is a digital modem, and vice versa, before they startthe phase 2 training.~ Is it using a diferent freq region for~ upstream and downstream like ADSL and Cable modem?No. Since the advent of V.32, each voiceband modem transmitteruses the full bandwidth of the channel. They can transmitfull duplex because they do echo cancellation and soeach modem can cancel out the image of its own transmission.Aaron
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