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.
