System Components
Front
Components
Table 1–1 describes the ports, switches, and indicators on the
front of the system unit.
Table 1–1 Components: Front of System Unit
Number
Feature
Function
!
On/Off switch
Power switch for system unit
(shown in Figure 1–3 in off
(O) position).
"
Front door
Protects switches.
#
Headset jack
For audio output to
a headset. (software
controlled)
$
Audio speaker switch
Turns speaker on (down) and
off (up).
%
Halt button
Used to put the system into
console mode.
&
Alternate console
switch
Set to the up position to
select a terminal as an
alternate console for testing
purposes, or to the down
position to return to normal
use of the workstation
monitor.
'
Diagnostic lights
Show status of the system
during diagnostic tests. (See
Chapter 5.)
1–6 Your VAXstation 4000 Model 90 System