6: Setup Mode: Channel Configuration
DeviceLinx™ XPort Direct/XChip Direct SoC User Guide
32
Data Echo & Modem
Response
Full Verbose:
The unit echoes modem commands and responds to
a command with a message string shown in the table below.
Numeric Response:
The unit echoes modem commands and
responds to a command with a numeric response.
Modem Responses
Only
Full Verbose:
The unit does not echo modem commands and
responds to a command with a message string shown in the table
below.
Numeric Response:
The unit does not echo modem commands
and responds to a command with a numeric response.
Table 4-11. Modem Mode Messages
Message
Meaning
Full Verbose
OK
Command was executed without error.
CONNECT
A network connection has been established.
NO CARRIER
A network connection has been closed.
RING n.n.n.n.
A remote device, having IP address n.n.n.n, is connecting to this
device.
Numeric Response
0 OK
1 Connected
2 Ring
3 No
Carrier
4 Error
Received commands must begin with the two-character sequence
AT
and be
terminated with a carriage return character.
The unit ignores any character sequence received
not
starting with
AT
, and only
recognizes and processes single
AT
-style commands. The unit treats compound
AT
commands as unrecognized commands.
If the
Full Verbose
option is in effect, the unit responds to an unrecognized
command string that is otherwise formatted correctly (begins with
AT
and ends with
carriage return) with the "OK" message and takes no further action.
If the
Numeric Response
option is in effect, the unit responds to an unrecognized
command string that is otherwise formatted correctly with the "OK" message and
takes no further action.
When an active connection is in effect, the unit transfers data and does not process
commands received from the serial interface.
When a connection is terminated or lost, the unit reverts to command mode.
When an active connection is in effect, the unit terminates the connection if it
receives the following sequence from the attached serial device:
