Multi-Tech Systems 92U04A22750 ユーザーズマニュアル
Chapter 6 – Application Considerations
Wireless ModemModule MTMMC-C Developer's Guide
19
Getting Started
Minimum Hardware Interface Required To Get Started
At a minimum, it is necessary to connect the following signals too properly operate the ModemModule:
Pin Number
Name
Description
1
GND
Ground
2
GND
Ground
3
+5V
Power Supply
4
+5V
Power Supply
6
GND
Ground
13
CT106/CTS
Clear to Send
15
ON/OFF
Power On/Off *
21
GND
Ground
24
GND
Ground
25
CT103/TX
Transmit
28
CT104/RX
Receive
30
CT105/RTS
Request to Send
* Connected to +5V for example
The serial link signals must be used through the implementation of the serial link level shifter. See “Level Shifter
Application Diagram for Serial Link.”
Application Diagram for Serial Link.”
Terminal Emulator Setup
Here below is an example based on the Windows
TM
Hyperterminal application
(terminal emulator program).
Setup:
1. Go to START – PROGRAMS – ACCESSORIES – HYPERTERMINAL.
2. Start the Hyperterminal software.
3. Give the name of your choice, click on the icon of your choice, and click “OK.”
4. Choose these operating parameter values:
1. Go to START – PROGRAMS – ACCESSORIES – HYPERTERMINAL.
2. Start the Hyperterminal software.
3. Give the name of your choice, click on the icon of your choice, and click “OK.”
4. Choose these operating parameter values:
Connect using: direct to COM1
Properties: 115200 bps; 8 bits data; no parity; 1 stop bit; hardware flow control.
Properties: 115200 bps; 8 bits data; no parity; 1 stop bit; hardware flow control.
5. Click “OK.”
Once Hyperterminal is open and configured, it can be used to send AT commands to the ModemModule.
For assistance in testing your ModemModule, see the examples in the AT Command manual for Multi-Tech’s
CDMA wireless modem products (CDMA AT Commands Reference Guide).
CDMA wireless modem products (CDMA AT Commands Reference Guide).