Advantech ADAM-4561 Manual do Utilizador descarregar pdf (Página 19)

9 Chapter 2

2.1.4 Jumper Settings

You can use JP1 on ADAM-4561 to configure serial mode. Please refer to

the picture below for Jumper JP1 location.

You can choose “On (RS-422 Master)” or “Auto (RS-422 Slave/RS-485

Automatic Direction Control)” for serial mode. Please refer to the picture

below.

For RS-485, if the JP1 is set to “Auto”, the driver automatically senses

the direction of the data flow and switches the direction of transmission.

Handshaking is unnecessary. For RS-422, if the JP1 is set to “Auto”, it

will become RS-422 slave. If the JP1 is set to “On”, the driver is always

enabled, and always in high or low status. The user must select the mode

before beginning RS-422 application.

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Advantech ADAM-4561 Manual do Utilizador Página 19