User Manual
GSM LT-1
14
10.2 P
ROGRAMMING BY MEANS OF A TELEPHONE SET
(DTMF)
The stationary telephone set makes it possible to program all the module operating
parameters by means of DTMF signals, as well as enables the module status and antenna
signal level to be checked.
In order to change the settings or check the status you should first enter the GSM LT-1
module programming mode. This operation requires entering a six-digit access code.
By default, this code is
[1][2][3][4][5][6]
and can be changed. In case you have forgotten the
code after the change, you can only view it or restore it by means of the computer and the
DLOAD10 program.
10.2.1 Calling the GSM LT-1 module programming mode:
•
Lift the handset of the telephone connected to the module terminals R-1 and T-1
(the telephone must support the DTMF tone system).
•
Select the following key sequence on the keypad:
[*][*][*][*][*][*][?][?][?][?][?][?][*][*][*][*][*][*][#] (6 x asterisk; access code; 6 x asterisk; #)
•
The module will confirm entering the programming mode with four short and one long
beeps (SSSSL) hearable in the telephone handset and will wait for individual functions to
be called to program the settings. It will remain in the programming mode until the handset
is hanged up.
Note:
The module accepts the call of programming mode irrespective of the signals it
generates in the handset (e.g. the line busy signal can be heard, if there is no SIM
card inserted).
During the process of programming, the module is communicating with the user by means of
beeps hearable in the telephone receiver. These beeps (tones) are symbolically represented
in the function description by uppercase letters:
S
– short beep
L
– long beep
10.2.2 Programming the module settings
In order to call the programming function, select the
function number
(two digits), press the
[*][*]
asterisk key twice, enter the
parameter
suitable for the given function and press the
[#]
key.
The parameter keys are described by means of the
[?]
question marks. The number of
question marks is equal to that of the digits of the parameter to be entered in the given
function. Where the number of digits is not precisely defined, then such a parameter is
described with the
[?...]
symbol (e.g. telephone number).
The numbers of telephones/PAGER stations may contain special characters:
#
,
*
,
+
. In order
to program such a character from the telephone keypad, call the programming function and
press successively the two keys:
[*][1] = #
[*][*] = *
[*][0] = +
Entering a correct command is signaled in the handset by three short beeps (SSS), while
commands which are incomprehensible or have an incorrect number of characters are
signaled by two long beeps (LL).
The function completed, the module returns to the programming mode. If you hang up, the
module will quit the programming mode and return to the normal operating mode.
