The older ArduinoBoardEthernet has the 6 pin connector for serial input to the unit. But no 6 pin connector is found on the Arduino Ethernet Shield board. How can I connect to the board via serial. I need to load program data on the board. I will not be using it with a UNo but standalone with only a relay board attached.
Are some of the other pins on edge the same as the TX RX and RTS Ground, power etc.