Intel H310 Technical Manual page 41

Redirect After POST
The optional settings are: [Always Enable]; [Bootloader].
When [Bootloader] is selected, then Legacy Console Redirection is disabled
before booting to legacy OS. When [Always Enabled] is selected, then Legacy
Console Redirection is enabled for legacy OS. Default setting for this option is
set to [Always Enabled].
Serial Port for Out-of-Band Management/
Windows Emergency Management Services (EMS)
Console Redirection
The optional settings: [Disabled]; [Enabled]. When set as [Enabled], the following
sub-items shall appear:
4 Console Redirection Settings
The settings specify how the host computer and the remote computer (which the
user is using) will exchange data. Both computers should have the same or
compatible settings.
Press [Enter] to make settings for the following items:
Out-of-Band Mgmt Port
The optional settings: [COM1]; [COM1(Pci Bus0, Dec0,Func0) (Disabled)].
Terminal Type
The optional settings: [VT100]; [VT100+]; [VT-UTF8]; [ANSI].
[VT-UTF8] is the preferred terminal type for out-of-band management. The next
best choice is [VT100+] and them [VT100]. See above, in Console Redirection
Settings page, for more help with Terminal Type/Emulation.
Bits per second
Use this item to select serial port transmission speed. The speed must be
matched on the other side. Long or noisy lines may require lower speeds.
The optional settings: [9600]; [19200]; [57600]; [115200].
Flow Control
Flow control can prevent data loss from buffer overflow. When sending data, if
the receiving buffers are full, a "stop" signal can be sent to stop the data flow.
Once the buffers are empty, a "start" signal can be sent to re-start the flow.
Hardware flow control uses two wires to send start/stop signals.
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