Chapter 2: Introduction to AT Commands

June 30, 2008 AT Commands Reference Manual 2-5

AT Commands Protocol & Structure Configuration

The AT commands message flow and structure may be configured by the terminal.

The G24 can be configured not to follow a command with an echo and/or results code. It can be

configured to transmit the results code in either of two ways: Verbose or Numeric. This (and

other) configurations can be set using the following commands:

The figure below shows the flow and structure configuration commands:

Figure 2-4: Flow and Structure Configuration Commands

Command Description

S3=[<value>] Command line termination character (default setting 0x13).

S4=[<value>] Response formatting character (default 0x10).

S5=[<value>] Command line editing character (default 0x 8).

E[<value>] Command echo (default 0, meaning the G24 does not echo commands).

Q[<value>] Result code suppression (default 0, meaning the G24 transmits result

codes).

V[<value>] G24 response format (default 1, meaning verbose format).

X[<value>] Defines CONNECT result code format.

ATQx
ATEx
ATS3= x
A
A
A
A
T
T
T
TC
C
M
M
D
D
1
1
T
C
C
M
M
D
D
O
O
K
K
2
2
2
2
<CR>
<CR>
<CR>
<CR>
<CR>
<CR><CR>
<CR>
ATS5=x ATS4=xATVx
<LF>
<LF><LF>
<LF>
1
1
=
=