Moxa W406-T-CE [25/74] Summary of the testing procedure

W315A/325A Linux User's Manual Getting Started

2-17

Summary of the Testing Procedure

1. Compile tcps2.c (#make).

2. Upload and run tcps2-release in the background (

#./

tcps2-release

3. Check that the process is running (

jobs or #ps -ef).

4. Use a serial cable to connect PC1 to the W315A/325A’s serial port 1.

5. Use an Ethernet cable to connect PC2 to the W315A/325A.

6. On PC1: If running Windows, use HyperTerminal (38400, n, 8, 1) to open COMn.

7. On PC2: Type

#telnet 192.168.3.127 4001.

8. On PC1: Type some text on the keyboard and then press Enter.

9. On PC2: The text you typed on PC1 will appear on PC2’s screen.

The testing environment is illustrated in the following figure. However, note that there are limitations to the

example program tcps2.c.

NOTE The tcps2.c application is a simple example designed to give users a basic understanding of the concepts

involved in combining Ethernet communication and serial port communication. However, the example

program has some limitations that make it unsuitable for real-life applications.

The serial port is in canonical mode and block mode, making it impossible to send data from the Ethernet side

to the serial side (i.e., from PC 2 to PC 1 in the above example).

The Ethernet side will not accept multiple connections.