I was testing the remote console feature on my Mikrotik (RB951G-2HnD). Detailed information posted on Mikrotik wiki on Manual:Port.
If you want to access serial device that can only talk to COM ports and is located somewhere else behind router, then you can use remote-access.
As defined in RFC 2217 RouterOS can transfer data from/to a serial device over TCP connection.
Enabling remote access on Mikrotik is easy , see the steps below.