Westermo IDW-90 AT - Manual (Page 36)

36 6620-3200
4.7 Transparent I/O
4.7.1 Digital Input
The digital input gives the following functionality:
1. Establishing a data connection to a predefined target number.
When the input is switched (pulsed), the modem will establish a data connection
to the stored predefined number. After a time, specified in the modem, without
data exchange, the connection shall be released (inactivity timer).
2. Sending a SMS Message to a predefined targetnumber.
When the input is switched (pulsed), the modem will establish a connection to an
SMS service centre defined by a predefined number. The SMS Messages can handle
at least 160 characters. TAP and UCP protocols is supported.
3. Sending a Text Message to a predefined targetnumber.
When the input is triggered, the modem establishes a connection to the stored tel-
ephone number and send out a short text message.
4. Switch the remote digital output.
When the input is triggered, the modem establishes a connection to the stored
number of a remote unit and sends out a command, that switches (pulses) the
remote output according to a predefined sequence.
5. Execute AT-Command string
Execute a pre-programmable AT command string stored in the table of entries.
This can for example be used for switching DTE communication parameters
for online an offline mode by using two entries
6. Transparent I/O
When the input is triggered, the modem establishes a connection to the stored
number of a remote unit and sends out a command. After a connection is estab-
lished, the I/O is bi-directional