Galileo Board: Using the RS232 3-pin jack?

I am using the Intel Galileo Board.

I would like to use the RS232 3-pin jack to transmit data to another device (it does not need the capability to receive data).

I have a couple questions:

-What are the acceptable baud rates for the RS232 3-pin jack?
-What are the commands to initialize the 3-pin jack, change the baud rate, and transmit data?

Wouldn't it be one of the standard Arduino serial ports like Serial1?