Getting Started; Table 5-1: Minimum Signals To Operate The Modemmodule - Multitech MTMMC-G-F1 Developer's Manual

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:

Table 5-1: Minimum Signals to Operate the ModemModule

Pin Number
1
2
3
4
6
13
15
21
24
25
28
30
* Connected to +5V for example
The serial link signals must be used through the implementation of the serial link level shifter. See "Figure 3-3:
Level Shifter Application Diagram for Serial Link."
Terminal Emulator Setup
Here below is an example based on the Windows
(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:
Connect using: direct to COM1
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 MultiTech's
GSM/GPRS wireless modem products (GSM/GPRS AT Commands Reference Guide).
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer's Guide
Name Description
GND Ground
GND Ground
+5V Power Supply
+5V Power Supply
GND Ground
CT106/CTS Clear to Send
ON/OFF Power On/Off *
GND Ground
GND Ground
CT103/TX Transmit
CT104/RX Receive
CT105/RTS Request to Send
TM
Chapter 6 – Application Considerations
Hyperterminal application
38