Dell PowerEdge C6145 Hardware Owner's Manual page 86

Option
Redirection After BIOS
POST
(Always default)
Terminal Type
(ANSI default)
VT-UTF8 Combo Key
Support
(Enabled default)
86 | Using the System Setup Program
Description
Hyper Terminal on remote side will be discontinued
when <Ctrl>+<S> key is pressed. But onboard NIC
PXE Option ROM Configuration is also set when
<Ctrl>+<S> key is pressed. Suggest user change the
"Setup Key Stroke" to <Ctrl>+<B> in PXE
OPROM Configuration. The Hyper Terminal on
remote side will be discontinued when <Ctrl>+<S>
key is pressed.
Disabled: Turns off the redirection after POST.
Always: Redirection is always active. (Some operating
systems may not work if set to Always.)
Select the target terminal type.
Enables or disables VT-UTF8 combination key support
for ANSI/VT100 terminals.