F1 to F4 are relay outputs F5 to F12 are on the multi plug. These are max 40mA at 5v outputs. The last photo shows these outputs driving LEDs.
DCW-6WC DCC Concepts Accessory Bus Wire per metre 7x 0.2mm 6 Core
DCC EX CSB1 - Command Station
DCC EX Base Station with WiFi
DCC EX Booster 0-10A Variable Track Power
DCC EX Booster Two 1.5A Outputs for Track Districts