E

TECHNICAL INFORMATION

Technical

Your modem uses multiple standard data communications protocols and

Specifications

is also compatible with many nonstandard schemes. The following

 

schemes are supported:

Modulation

This modulation Supports

V.90

ITU 56K standard, server capabilities. V.90 analog

 

clients can call into your Business Modem to get

 

56K connections

x2

Up to 56 Kbps downstream and V.34 speeds upstream

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 bps asynchronous Quadrature

 

Amplitude Modulation (QAM)

HST

16.8/14.4/12 kbps; 9600/7200 bps asynchronous,

 

asymmetrical, 450 bps back channel with automatic

 

handshake adjustment to 300 bps TCM and QAM; 4800

 

bps asynchronous, asymmetrical, 450 bps back channel

 

with automatic handshake adjustment to 300 bps 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)

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3Com 56K manual Technical Information, Specifications, Schemes are supported, Modulation