Rework for ELF-CMOD-A7 rev 0 board
2017-11-24


Cut traces:
  SW_D3 between J4-11 and XA1-15
  SW_INPUT_NO between J4-10 and XA1-13
  RXD (5V logic level) between U1-12 and XA1-28
  CTS (5V logic level) between U1-9 and XA1-22
  RTS (TIA-232 line level) between U1-7 and J2-7
  CTS (TIA-232 line level) between U1-8 and J2-8

Add jumpers:
  SW_D3 between J4-11 and XA1-13
  RTS (TIA-232 line level) between U1-7 and J2-8
  CTS (TIA-232 line level) between U1-8 and J2-7

Add components:
  2.7K 1/8W resistor between U1-12 (RXD 5V logic level) and XA1-28
  2.7K 1/8W resistor between U1-9  (CTS 5V logic level) and XA1-22