8: Setup Mode: Channel Configuration
UDS1100 User Guide
49
When an active connection is in effect, the unit terminates the connection if it receives the
following sequence from the attached serial device:
No serial data is received for one second.
The character se++ is received, with no more than one second between
each two characters.
No serial data is received for one second after the last + character. At this time, the
unit responds affirmatively per the selected echo/response mode.
The character string
ATH
is received, terminated with a carriage return. The unit
responds affirmatively according to the selected echo/response mode and drops the
network connection. The serial interface reverts to accepting command strings.
If this sequence is not followed, the unit remains in data transfer mode.
Table 8-8. Modem Mode Commands
Modem Mode
Command
Function
ATDTx.x.x.x,pppp
or
ATDTx.x.x.x/pppp
or
ATDTx.x.x.x:pppp
Makes a connection to an IP address (x.x.x.x) and a remote port
number (pppp).
ATDTx.x.x.x
Makes a connection to an IP address (x.x.x.x) and the remote port
number defined within the unit.
ATD0.0.0.0
Forces the unit into Monitor Mode if a remote IP address and port
number are defined within the unit.
ATD or ATDT
Forces the unit into Monitor Mode if a remote IP address and port
number are not defined within the unit.
ATDx.x.x.x
Makes a connection to an IP address (x.x.x.x) and the remote port
number defined within the unit.
ATH
Hangs up the connection (Entered as +++ATH ).
ATS0=n
Enables or disables connections from the network going to the serial
port.
n=0 disables the ability to make a connection from the network to the
serial port.
n=1-9 enables the ability to make a connection from the network to
the serial port.
n>1-9 is invalid.
ATEn
Enables or disables character echo and responses.
n=0 disables character echo and responses.
n=1 enables character echo and responses.
ATVn
Enables numeric response or full verbose.
n=0 enables numeric response.
n=1 enables full verbose.
Note:
The unit recognizes these AT commands as single commands such as
ATE0 or ATV1; it does not recognize compound commands such as ATE0V.
