User's Guide
Table Of Contents
- Table of Contents
- About This Document
- 1. Introduction
- 2. Installation
- 3. Configuration and Operation
- 4. Troubleshooting
- A. AT Command Set
- B. Dial Modifiers
- C. S-Registers
- D. Isolating Problems Using Loopback Data Tests
- E. Quick-Reference Summaries
- Glossary
- Index

8400B Plus Data Module User’s Guide
555-020-709
Issue 2
November 1996
S-Registers
C-29
Comments: 1. Hayes compatible modems use only bits, 0, 1, and
2 for speeds up to 2400 bps. The 8400B Plus Data
Module uses bit 3 to support speeds above 2400
bps.
2. Bits 6 and 7 are set by the appropriate command,
but there will be no other effect.
3. Refer to the explanation of hexadecimal values
under the “Range of Values” heading on page C-4
.
See Also: "AT Command Line Prefix" on page 3-2, the &T
command on page A-26, and Appendix D for
information about performing remote loopback tests.
Table C-1. Labels Used in S-Registers
Label Description
020709_2.book Page 29 Friday, April 23, 1999 5:39 AM