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-16
Register: S9
Description: This S-register establishes the length of time a receive
carrier signal must be present to be recognized and
cause the Data Carrier Detect (DCD) circuit to turn on.
This prevents a ring or busy signal from being mistaken
as a carrier.
Range of Values: Value may be 000 through 255 tenths of a second;
factory-default value is six tenths of a second.
Storable: no
Comments: This feature is unnecessary in the DCP operating
environment of the 8400B Plus Data Module. The value
in S9 may be set or read but is always ignored.
See Also: none
Table C-1. Labels Used in S-Registers
Label Description
020709_2.book Page 16 Friday, April 23, 1999 5:39 AM