Allied Data Technologies TRON SECURE 33.6, Руководство пользователя

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3.2 Structure of a command line
A command line starts with the characters AT, derived from the word ATtention. The characters
AT both have to be either capitals or lower case characters. The command line is closed by
<ENTER>. One or more commands can be given on one command line. A command line may
include 54 characters at the most. It is not possible to type in more than 54 characters.
N.B. The modem remembers the last command line.
This can be repeated by typing: A/ (without <ENTER>).
To leave no doubt, commands can be separated from each other by spaces.
The spaces are included in the length of a command line.
Sometimes a command is followed by a parameter (number).
If this number is 0, it may be left out. For example: ATE corresponds with ATE0.
A command line is not executed if CNTRL-X (18H) is received by the modem.
The modem recognizes the baudrate and the terminalís parity by the initial characters AT of the
command line. The modem is adjusted to this. The speeds that are automatically recognized are
300, 1200, 2400, 4800, 9600, 19,200, 38,400, 57,600 and 115,200 bps respectively.
The recognized data format is: 7 bits or 8 bits characters with even, odd, or no parity bit and 1 stop
bit.
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