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5686G-PRO User Guide
Page
75
of
94
Copyright © 2018 USR, a Division of UNICOM Global
Technical Information
Your modem uses multiple standard data communications protocols and is also compatible with
many nonstandard schemes. The following schemes are supported:
Error Control, Data Compression, and Testing
Modulation
This modulation
Supports
V.90 and V.92
ITU 56K standard, server capabilities. 56 through 28 kbps; Pulse Coded
Modulation (PCM).
ITU-T V.34
33.6/31.2/28.8/26.4/24/21.6/19.2/16.8/14.4/12 kbps; 9600/7200/4800 bps
asynchronous Trellis Coded Modulation (TCM)
V.FC
28.8/26.4/24/21.6/19.2/16.8/14.4 kbps asynchronous TCM
V.32 terbo
21.6/19.2/16.8/14.4/12 kbps; 9600/7200 bps asynchronous TCM; 4800 bp s
asynchronous Quadrature Amplitude Modulation (QAM)
ITU-T V.32 bis
14.4/12 kbps; 9600/7200 bps asynchronous TCM; 4800 bps asynchronous QAM
ITU-T V.32
9600 bps asynchronous, TCM; 4800 bps asynchronous, QAM
ITU-T V.22 bis
2400 bps asynchronous, QAM
Bell 212A
1200 bps (also V.22) asynchronous, Differential Phase Shift Keying (DPSK)
ITU-T V.23
1200 bps asymmetrical with 75 bps back channel with Frequency Shift Keying
(FSK), used by some U.K. and European phone systems.
Bell 103
300 bps (ITU-T V.21 optional) asynchronous, Frequency Shift Keying (FSK)