Moxa Technologies CP-134U user manual Jumper Settings, DIP Switch Settings

Jumper Settings

The two on-board 30-pin jumpers are used to select between the RS-232 and RS-422/485 serial interfaces. If you select RS-422/485, then you will also need to set the DIP Switches to select between RS-422, RS-485 (4-wire), and RS-485 (2-wire). Note that the two ports can be configured independently.

Jumper pins:

Top for Port 1,

Bottom for Port 2

RS-422/485:

Cover the left two columns of pins with the jumper to select the RS-422/485 option.

RS-232:

Cover the right two columns of pins with the jumper to select the RS-232 option.

DIP Switch Settings

Refer to the figures on the following two pages to see how to select between RS-422, RS-485 (2-wire), and RS-485 (4-wire).

2-4 Industio CP-134U Series User’s Manual