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BOCA PRO16 Reference Guide
The AT Commands
The AT commands are a group of special commands recognized by your
modem. These commands derive their name from the letters AT, which
are used to prefix commands. Before continuing:
• Run your communications software and enter local mode (or terminal
mode) at 2400 bps Refer to your communication software manual for
details.
The Attention Code
An AT (sometimes known as the ATtention code) usually precedes all
commands being sent to the modem. It is used to gain the modem’s
attention, informing it that you are about to send a command. For
example:
• Type the command:
ATI9 <E>
Your modem’s firmware identity message will appear on your com-
puter screen. If you type I9 only, your modem will not respond. If you
type AT19, your modem will report an ERROR.
You may enter the attention code in all upper case, or all lower case
letters, such as: AT or at
Multiple Commands
You may place multiple modem commands after an AT provided the
total number of characters does not exceed 80. For example, a valid
command to display the modem’s firmware identity twice is:
• Type in the command:
ATI9I9 <E>
An AT is not required in front of the second I9 command. You only need
one attention code for each command line. To make this command more
readable, you can add spaces between the two commands:
• Type in the command:
AT I9 I9 <E>
The modem will execute the command as if the spaces are not there.
Getting Started
Getting Started
pro16ref.pm6 6/14/96, 2:36 PM18
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