Lucent Technologies 7400B manual Essential AT Commands

CHAPTER 3: FIRST TIME USERS	DEFINITY Communications System
	7400B Data Module
Page 3-2	User’s Guide

	All of these parameters may be changed on the local terminal device as
	needed. The 7400B Data Module will adjust to match the speed and
	parity of the local terminal device.
	If you connect to a remote system and your screen shows a series of
	nonsense characters (also referred to as "garbage"), chances are that you
	need to adjust speed or parity.
	For more information on configuration, see Chapter 4, “Operation and
	Configuration.”
ESSENTIAL AT	Note: This section pertains mostly to dedicated terminals, since
COMMANDS	many data communications packages for PCs may not allow
	you to send AT commands directly to the data module.
	This section provides a basic description of the most commonly used
	AT commands. These few commands are all you will need for
	completing many data communications tasks. In a later section titled
	“Sample On-Line Session,” presented at the end of this chapter, you
	will enter the commands manually from your terminal keyboard.
	Note: If you are using a PC with software that permits command or
	script files, you may create files to perform automatic log in
	for devices that you plan to communicate with frequently.
	In this case, the commands used are typically not direct AT
	commands, but function commands defined by the software
	package. For more information on PC software, refer to
	Appendix C, “Application Notes.”
	Table 3-2describes the subset of AT commands you will need for the
	on-line session at the end of this chapter. For a complete description of
	all AT commands, refer to Appendix A.
	Note: Except where otherwise noted, press [ Enter ] to complete all
	AT command lines.