Db9 Serial Port; Idc10 Serial Connector; Fan Connectors; Leds - MikroTik RouterBOARD 800 Series User Manual

DB9 Serial Port

The RS232C standard male DB9 asynchronous serial port may be used for initial configuration, or for
attaching a modem or any other RS232 serial device. TxD (pin 3) of this port has -5V DC power when idle.
Some signals are not connected, so this implementation may not be considered to support full hardware
flow-control, so software flow-control (XON/XOFF) or none at all should be used.

IDC10 Serial connector

This connector can be used to add another serial port to the RB800. It's pinout is as follows:

Fan Connectors

You can connect up to four fans to the RouterBOARD, but only one pair of them will work at a time. They will
receive either 3.3V or 5.5V DC power. The board supports fan speed feedback signaling. RouterOS can be
configured to change the active fan, if the current active one is not rotating (note that if a fan does not have
rotation sensor, it will be considered failed).
JP1 and JP3 are 3.3V connectors, only one of them will power a cooling fan at the same time, other one will
be started when the first stops.
JP2 and JP4 are 5.5V connectors, only one of them will power a cooling fan at the same time, other one will
be started when the first stops.
To enable rotation of two fans simultaneously, simply connect one 3.3V fan to JP1 and a 5.5V fan to JP4
(outside of the pair).

LEDs

Power LED

Power LED is on when the board is powered.

User LED

User LED may be programmed at user's option. It is lit by default when the board starts up, then it is turned
off when the bootloader runs kernel.

User's Guide

Assembling the Hardware

First to use the board:
● In most cases you do not need to use any additional boot devices, as you can boot the RouterBOARD
from the onboard NAND memory. You can also install one CompactFlash module or Microdrive hard
drive, which you can use as an alternative boot device for non-RouterOS operating systems, or for
additional storage media;
● Insert MiniPCI cards on the board itself, and on the daughterboard if you have one;
● Install the board in a case, connect and secure the daughterboard and connect antenna wires, if
needed;
● Connect other peripherals and cables.
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RouterBOARD 800 Series User's Manual