User's Manual

OTC Wireless Document Number: DOC-001-0901

AirEZY2411-RS232 Utility User’s Guide Version 0.2 – Oct 14, 2002

3. Detail Functionality of the Program’s areas

Each of the sections below contains underlined, bolded text that I define as “Required User

Actions”. This describes the minimum actions from the user to make each part work.

3.1 Connection and Overall Status: (Fig 2)

This part controls and maintains the serial connection of the whole program, and tells what is

its current the status. It contains a combo box, a button, and a line of “Status” text. The

states of the combo box and the button are related with each other.

a. The combo box: it allows users to select a COM port (COM1 to 4) for

the program to use to communicate with the unit. The other

characteristics for the connection are: baud rate 9600bps, no parity, and

one stop bit. These are fixed numbers and users can’t change them.

b. The button: this button has two states, “Connect” or “Disconnect”.

When the program starts, its default state is “Connect”. When the user

selects a COM port and clicks on it, and:

If a connection is made successfully on the selected COM port, the

button’s state will be changed to “Disconnect” and the combo box’s

state will be changed to inactive not allowing the user to select another

COM port. The “Status” text will be displaying: “Connected on COMx!”

If the program failed to make the connection on the selected COM port,

then the user will get popup windows indicating the failure of the

connections and the error code. The button’s state is also not changed

(stay “Connect” state)

c. The “Status” text: This text displays the program current status such as

the connection, whether the program is entering a wait state for the

response from the Unit, whether a response to a command is good, etc.

NOTE: The meaning of the button’s text may be confusing. It is really opposite from the

program connection status and it tells the basic action the user must do to make the

program connected (select a COM port, click the button)

NOTE: If the button’s text is “Connect”, then the program is not connected and the user has

to select a COM port and click on the button. If the program failed to make the