MikroTik Console Terminal is accessible via USB to Serial PL2303HXA x 2 pcs mod as Null Modem Cable for accessing Console Terminal via another computer using Hyper Terminal or Putty for troubleshooting and maintenance purposes by most System Engineer when system halts at TCP/IP Ethernet Port layer 2 networking.
Four wires color coded as Green RX to White TX. Followed by another set of crossed cable config of White TX to Green RX. The Black GND to Black GND wire for return signal.
Warning!!! Do not connect the two Red Positive 5 Volts together as not used in Serial Console Terminal purposes and it will short out both systems USB ports if connected!