WIZ-IP55 User Manual The reference design schematic diagram of the peripheral circuit for WIZ-IP55 is shown in Figure2-4. Figure 2-4:Reference design schematic diagram of the peripheral circuit of WIZ-IP55 2.3 Quick Evaluation Wiring Instructions Users can download the corresponding reference code for W5500 from www.w5500.com and burn it onto the IO module carrier board for performance testing and evaluation, as shown in Figure 2-5. Computer IO module carrier board IO module carrier board IO module carrier board Serial port Serial port Serial port User device User device User device Figure 2-5:Schematic Diagram for Test and Evaluation of IO Module Carrier Board WIZ-IP55 User Manual9 / 10