System information

Manual:System/Serial Console

With the serial-terminal feature of the MikroTik, up to 132 (and, maybe, even more) devices can be monitored and

controlled.

Serial Console Configuration

A special null-modem cable should be used for connecting to the serial console from another computer. The Serial

Console cabling diagram for DB9 connectors is as follows:

Router Side (DB9f) Signal Direction Side (DB9f)

1, 6 CD, DSR IN 4

2 RxD IN 3

3 TxD OUT 2

4 DTR OUT 1, 6

5 GND - 5

7 RTS OUT 8

8 CTS IN 7

Note that the above diagram will not work if the software is configured to do hardware flow control, but the

hardware does not support it (e.g., some RouterBOARD models have reduced seral port functionality). If this is the

case, either turn off the hardware flow control or use a null-modem cable with loopback, which will simulate the

other device's handshake signals with it's own. The diagram for such cable is as follows:

Router Side (DB9f) Signal Direction Side (DB9f)

1, 4, 6 CD, DTR, DSR LOOP 1, 4, 6

2 RxD IN 3

3 TxD OUT 2

5 GND - 5

7, 8 RTS, CTS LOOP 7, 8

Note that although it is recommended to have 5-wire cable for this connection, in many cases it is enough to have 3

wires (for unlooped signals only), leaving both loops to exist only inside the connectors. Other connection schemes

exist as well.

Configuring Console

Sub-menu: /system console

Properties