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Pc character echo e, Command statement buffer, Backspace key – Verilink Productivity 500 (34-00236) Product Manual User Manual

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AT Command Operation

500 TA

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• The ENTER key must be pressed to execute (or enter) a command.

• The command buffer can hold 128 characters including spaces.

• Use the backspace or delete key to erase the last character (depending on

your terminal).

PC CHARACTER ECHO

E

As commands are typed they normally appear on the PC monitor so the opera-
tor can verify the input. This is called local character echo. To determine if
echo is set properly, type AT. If the terminal displays AT, echo is set correctly.
If it displays AATT, then echo should be disabled by typing ATE. If the termi-
nal does not display the AT at all, echo should be enabled by typing ATE1. The
echo option only affects command mode operation.

COMMAND STATEMENT BUFFER

The 500 TA temporarily stores up to 128 characters in a buffer. If more than
128 characters are entered before the end-of-line characters, the 500 TA ceases
to echo and waits for the end of line character. To correct this condition, retype
the command using 128 characters or less.

The characters used by the AT command interpreter to represent end-of-line,
line feed, and backspace are set respectively by the S3, S4, and S5 commands
and can be changed if necessary.

The punctuation used in telephone numbers takes up space in the buffer, as do
blank characters used as spaces to help increase readability.

BACKSPACE KEY

Use the backspace key to change the command statement or correct errors. The
backspace key allows the cursor to be moved back to the character(s) in error.
The command can then be retyped from that point.

Example: ATD5551211 has been typed. To change the last 1 to 2, press the
backspace key once, type 2, and press return to execute the command.