3onedata NP301 User Manual page 19

5.4.3 AT Command Mode
By setting "way to enter into AT order Mode", users can use these entering ways to enter into AT
Command Mode.
There are 3 kinds of ways to enter into AT Command Mode, firstly, I/O port trigger，secondly, Ctrl+Break
trigger，thirdly, Character strings trigger(Hex).
way to AT Order Mode
I/O port trigger
CtrlBreak trigger
Character strings
trigger(Hex)
[I/O port trigger]
By triggering the corresponding pin, you can enter the AT command setting mode. By default, 24 pin is
high level. Inputing a low level, you can enter AT Command Mode through I/O port trigger.
[CtrlBreak trigger]
Open Virtual Serial Port, click "Ctrl+PauseBreak", then open Web page of NP301, click [Operation
Settings/AT Command Settings] to enter into AT Commande Mode page. It is enabled by the second way. As
Figure 5.9.
[Character strings trigger (Hex))]
By setting "Character" in "Character Strings Trigger (Hex)". "Serial Settings", The way is to send
predefined characters to serial port through software to enter into AT Command Settings Mode.As Figure 5.9，
By setting 2 Ways, "Ctrl+PauseBreak" and "Character Strings Trigger(Hex)", any one of these kinds can enter
into AT Command Mode.
After setting the "way to enter into AT Command Mode", then open the Hyper Terminal to execute AT
command, as shown below,
Turn the computer, on the Windows interface, click "Start/All Programs/Accessories/communication", run a
terminal emulation program to create a new connection. To take Hyper Terminal in Windows XP for example,
as shown in Figure 5.10, type in a new name of the connection in a text box named "name", then click
Entering into AT Command Mode by hardware
When opening this mode, click Ctrl+PauseBrack to enter
to AT Command Mode.
Entering corresponding character strings by serial port
assitant to enter into AT Command Mode.
(Figure 5.9)
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