User's Manual

I
Contents
1 Product Overview ............................................................................................................................ 1
1.1 System Application ................................................................................................................................ 1
1.2 Function Description .............................................................................................................................. 1
1.2.1 Hardware ..................................................................................................................................... 1
1.2.2 Software Functions ...................................................................................................................... 2
2 Install and Power on........................................................................................................................ 5
2.1 InDTU3321 Installation......................................................................................................................... 5
2.2 LED Indicator ........................................................................................................................................ 7
3 Quick Start ....................................................................................................................................... 8
3.1 View Real-Time Logs ............................................................................................................................ 8
3.2 View History Logs ................................................................................................................................. 9
3.3 Import/Export Configuration ................................................................................................................ 10
3.4 Upgrade Device .................................................................................................................................... 11
4 Parameter Settings ........................................................................................................................ 14
4.1 Local Serial Port/Serial Port 2 .............................................................................................................. 14
4.2 Work Mode .......................................................................................................................................... 14
4.3 GPRS Dialing ....................................................................................................................................... 15
4.4 Application Center ............................................................................................................................... 15
4.5 Multi-application Center ...................................................................................................................... 16
4.6 Multi-center mechanism ....................................................................................................................... 16
4.7 Other Settings ....................................................................................................................................... 17
4.8 InHand Device Manager (DM) platform .............................................................................................. 17
4.9 Administrator Account ......................................................................................................................... 18
4.10 ICMP .................................................................................................................................................... 18
4.11 User-Defined Packets ........................................................................................................................... 19
5 Common usage and Examples ...................................................................................................... 20
5.1 Base Configuration............................................................................................................................... 20
5.2 Transparent TCP .................................................................................................................................. 23
5.2.1 Parameter Settings ..................................................................................................................... 23
5.2.2 Demonstration ........................................................................................................................... 24
5.3 Transparent UDP .................................................................................................................................. 27
5.3.1 Parameter Settings ..................................................................................................................... 27
5.3.2 Demonstration ........................................................................................................................... 27
5.4 TCP Server ........................................................................................................................................... 31
5.4.1 Parameter Settings ..................................................................................................................... 31
5.5 Modbus-Net-Bridge ............................................................................................................................. 33
5.5.1 Parameter Settings ..................................................................................................................... 33
5.5.2 Demonstration ........................................................................................................................... 34
5.6 IHDMP Usage Example ....................................................................................................................... 38
6 Appendix ........................................................................................................................................ 39
Capturing DTU Logs .......................................................................................................................... 39
FAQ .................................................................................................................................................... 41