3-10 W650 Wind Generator Protection System GEK-113032A3.4 WIRING 3 HARDWARE3The default port selected by switch is 10/100 TX in factory configuration. The switch selects between cable (10/100 TX)and the first fiber port (100 FX). In Ethernet board type D (double fiber port) the backup channel is always fiber.Figure 3–10: FIBER/CABLE SELECTION