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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.

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