Boca FDSP34AI, Руководство по установке

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On-Line EXPRESS
Data Communication Protocols
This can be more than a little confusing. These protocols represent
various domestic and international standards which enhance modem
performance and reliability. The protocols are activated and controlled by
a variety of extended AT commands and S-Registers.
MNP stands for Microcom Networking Protocol and is a protocol
developed by Microcom for full-duplex, error-free communications. This
protocol detects and corrects errors which can result from telephone line
noise and other signal distortions. There are several classes of MNP
operation also referred to as service classes. Class 5 maximizes data
transfer rate and provides compression which can significantly increase
data throughput.
The “V-Dot” standards are more numerous, but have a single origin: the
International Telecommunications Union Telecommunications Standards
Sector (formerly the Consulting Committee for International and
Telephone and Telegraph or CCITT). Some of the lower-level standards
such as V.21 and V.22 have “domestic” equivalents as developed by the
former Bell System, also referred to as Bell standards. The “V.Dot”
standards may be summarized as shown on the following page.