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LEC-2050 Fanless Embedded System User’s Manual

C. Appendix C: Simple Testing

Procedures of RS-232/RS-485

Connections

This section illustrates a simple method to test your Serial port’s connection and data

communication.

Let’s use COM2 port with a configuration of RS-485 as an example. To configure the serial

type of COM2, refer to SC2T3/SC2T4: Select COM2 Type Jumper, Section 2.2.1

Connector Pin Assignments.

1. Enter to BIOS setup utility of the LEC-2050 and make sure that the serial port 2’s base

address is: 2F8.

2. You can connect to the LEC-2050 serial device server’s COM2 serial port with a RS-232

(DB-9 female) communication cable, with the other end connecting to the host’s serial

port.

3. Install PComm Lift software on the host PC and LEC-2050 to be your testing terminal.

4. Start the PComm Terminal Emulator from your desktop.

5. Select Port Manager on the main menu.

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