WF-2000 Series AIO User’s Manual (Ver. 1.2, May./2014) ------------- 21Table 2-6 WF-2026 Analog Input/Output Type Jumper configurationModules Input Type Jumper Position Output Type Jumper PositionVoltage VoltageWF-2026Current Current2.6 FW / OP Dip-switchOn the top of the WF-2000 series module, there is a dip-switch usedfor firmware operation or firmware update of the module. The followingsteps show how to use this dip-switch.2.6.1 Firmware Update ModePlease set the dip-switch to the “FW” position as Figure 2-7, and thenthe WF-2000 series will work in the “Firmware Update Mode” after resetthe power of the module. In this mode, users can update the firmware ofthe WF-2000 module from computer’s RS-232 port via CA-0910 cableshown as Figure 2-19.Figure 2-17 FW Position of Dip-Switch