Console Mode
Overview
The VAXstation 4000 Model 90 console mode allows operation of a
console device, which can be one of the following:
A workstation video device and LK401 keyboard and mouse
A terminal connected to line three of the serial port
A remote system connected using the Ethernet
Console Mode
The console mode can be entered if:
The HALT parameter is set to halt when power is turned on.
A HALT instruction is executed with the HALT action set
to HALT or a severe processor condition occurs (such as an
invalid interrupt stack).
An external HALT is detected (pressing the halt button on
the front panel).
Input and
Output
In console mode input and output (I/O) routines are used by:
Self-Test
Extended self-test
Utilities
System test
Virtual memory boot (VMB)
2–5
