Compaq DS10L - AlphaServer - 256 MB RAM Reference Manual page 98

In firm bypass mode, you cannot enter RMC mode. To enter RMC mode
from firm bypass mode, reset the com1_mode variable from the SRM
console.
Syntax: set com1_mode value
where value can be:
snoop
Data partially bypasses RMC, but RMC taps into the data lines
and listens passively for the RMC escape sequence.
soft_bypass
Data bypasses RMC, but RMC switches automatically into snoop
mode if an alert condition or loss of carrier occurs.
firm_bypass
Data bypasses RMC. RMC is effectively disabled.
Example:
>>> set com1_mode
COM1_MODE (SNOOP, SOFT_BYPASS, FIRM_BYPASS)
2.18.6 console
The console terminal can be either a graphics monitor or a
serial terminal. The console environment variable specifies
which is used. Whenever you change the value of console, you
must reset the system by pressing the Halt/Reset button or
issuing the initialize command.
Syntax: set console output_device
where output_device can be:
graphics The console terminal is a graphics monitor or a device connected
(default)
to the VGA or TGA module.
serial
The console terminal is the device connected to the COM1 port.
2-46 DS10 / DS10L Console Reference