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
AT Command Set
A-13
Command: I
Function: Request product code or ROM checksum.
Type: immediate
Arguments: The I command accepts one of three arguments as
follows:
0 — The 8400B Plus Data Module displays the decimal
number 249, followed by a carriage return and line feed.
1 — The 8400B Plus Data Module displays the ROM
checksum as two four-digit hexadecimal values,
followed by a carriage return and line feed.
2 — The 8400B Plus Data Module displays
OK
followed
by a carriage return and line feed.
S-Register: none
Example: ATI0
Comments: In the example, the 8400B Plus Data Module will return
its product ID code as the value
249
.
See Also: none
Table A-1. Accepted AT Command Labels
Label Description
ENTER
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