COURIER HIGH SPEED MODEMS

Last-Dialed Number Inquiry (DL?)

6-8

Stored Command String Query (&ZC?)

6-8

Help Screens

6-8

Stop/Restart Display

6-8

Cancel Display

6-8

Basic Command Set ($)

6-8

Extended Command Set (&$)

6-9

Dialing (D$)

6-10

S-Register Functions (S$)

6-10

Percent Commands (%$)

6-11

PART II. REFERENCE

Appendix ALink Negotiation (Handshaking) and Error Control

V.34 Handshaking

A-1

V.Fast Class (V.FC) Handshaking

A-2

U.S. Robotics V.32 terbo to U.S. Robotics V.32 terbo

A-2

Other V. Protocol Operations

A-3

Dual Standard Handshaking

A-4

Error Control and Throughput

A-4

V.42 Handshaking

A-5

MNP Handshaking

A-5

Data Compression

A-5

Flow Control

A-6

Throughput Guidelines

A-7

Typical Throughput

A-8

Appendix BSummaries and Tables

The RS-232 Interface

B-2

Front Panel Indicators

B-5

DIP Switch Summary

B-7

Default Settings

B-9

Factory Templates

 

&F1 Hardware Flow Control (Default)

B-10

&F2 Software Flow Control

B-11

&F3 HST Cellular

B-12

&F0 No Flow Control

B-13

NVRAM Options

B-14

S-Register Summary

B-15

ASCII Chart

B-28

Table of Contents vii

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USRobotics V.34 user manual Part II. Reference, Appendix A⎯Link Negotiation Handshaking and Error Control