GTM-204M-4G Quick Start v1.0 2016/06
5/6
5
Quick Test
Step 1: Start
→
All Programs
→
Accessories
→
Communications
→
Hyper Terminal
→
Input new connection name
→
Click “OK”
→
Select “GTM-204-4G AT command Port” for
USB or your PC serial port for RS-232 communication
→
Click “OK”
Step 2: File
→
Properties
→
Settings
→
Click “ASCII Setup
…
”
→
Select “Echo typed
characters locally”
→
Click “OK”
Step 3: Input “AT” and press “Enter”, then you will receive “AT OK”.