Setup Button

The setup button is located next to the Ethernet port on the DS203. It can be pressed using a pointed object, such as a pencil or pen.

Purpose and Functionality

The setup button is used to select the operating mode of the DS203:

During Power-Up:

When the DS203 is powered up with the button pressed it enters a serial upgrade mode in which new Application Firmware file can be uploaded into the  DS203 through its serial port. If the DS203 is powered up with the setup button not pressed the device proceeds to running its current application firmware. This functionality is delivered by the Monitor firmware component of the DS203.

While Application Firmware is Running:

Pressing the setup button switches the DS203 to serial programming mode (this behavior is defined by the application firmware, not the DS203 hardware).