NetComm NTC-220 User Manual page 95

I T E M
Initialization method Default - when data stream is established, the module will be
Additional AT
initialization
commands
Inactivity timeout
TCP connect-on-demand endpoint: The TCP connect-on-demand endpoint allows data to be buffered and
then sent to a TCP server when the buffer has been filled. It is primarily useful in situations where you do not
want 'keep alive' packets to keep the socket open and create an overhead when the TCP data connection is
not in use.
NTC-220 – User Guide
UG01028 v1.2 March 2019
initialized to a well-known, safe configuration appropriate for CSD
connection. These include the following AT commands:
ATE1 – enable echo
ATQ0 – disable quiet mode
ATV1 – enable verbose mode
AT&D2 – DTR line inactive disconnects the calls
AT&S1 – DSR becomes active in data mode, and off in command
mode
AT&C1 – CD becomes active when call is connected
Hardware flow control is enabled on the module
User – no pre-defined commands are sent to the module. Custom
initialization can be done using "Additional AT init commands"
These commands are sent after default commands (if default
method is used). For example, to change DTR operation to enter
online command mode instead of default disconnect, use the
following command: AT&D1 with "Default" initialisation method.
If a non-zero value is entered and the router detects an inactivity
period in an established CSD call in excess of the number of minutes
entered, the CSD call will be automatically terminated. Note: data
sent in any direction will prevent the call from being disconnected.
The specified value should be in minutes.
Table 24 – CSD endpoint options
Figure 103 – TCP connect-on-demand endpoint configuration
D E S C R I P T I O N
95 of 193
© NetComm Wireless 2019