INSYS GSM 4.2
INSYS GSM 4.2 compact
Functions and their Configuration
Sep-06
75
6.5.2
Passwords and DTMF PIN
Besides the PIN for the SIM card (see Chap. 6.1.1), which controls the access to the GSM
network, the INSYS GSM manages three other passwords/PINs to control the access to
the following:
¾
Data connection, security callback
¾
Remote configuration, control by SMS
¾
Switching via DTMF
The password consists of a maximum of 16 characters.
Data connection, security callback
This password controls
¾
Incoming data connections
¾
Triggering the security callback (see Chap. 6.5.3)
When an incoming connection is accepted and established, the caller is asked to enter
the password after 2 seconds:
If no valid password is entered within 60 seconds, the INSYS GSM will terminate the con-
nection. A valid password is acknowledged with
OK
.
If no security callback number is entered (see Chap. 6.5.3), the connection is free for data
transmission after 2 seconds.
Remote configuration, switching via SMS
This password controls
¾
Switching to remote configuration via data connection
¾
Accepting SMS messages to switch and query the inputs/outputs
(see Chap. 6.2.2)
¾
Accepting SMS messages with extended
AT**
commands (see Chap. 6.2.4)
During a data connection, you can switch to remote configuration mode by entering the
escape sequence (default setting
***
). (see Chap. 4.1)
Switching via DTMF
The DTMF PIN controls the access to switch and query the inputs/outputs via DTMF
tones during a voice connection. The DTMF PIN consists of 4 digits.
