Open The System Door; Lock And Key Positions - Digital Equipment VAX 4000 Model 300 Installation Manual

4 Open the System Door
The system door is locked. To unlock and open it:
1. Find the key in the shipping carton (Figure 1). Two keys are provided,
one to keep as a spare.
2. Insert the key in the three-position rotary lock shown in Figure 3. Turn
the key to the bottom position to open the upper and lower parts of the
door as a single unit.
3. Open the door by pulling on the handle on the upper door. Figure 3
shows the door handle.
Figure 3: Lock and Key Positions
Door Handle
Rotary Key Lock
Top Key Position:
Access to SCP, ISEs, and
Tape Drive Controls and
Indicators (Upper Part Open)
Middle Key Position:
No Access to Controls
(Both Parts Locked)
ns
~.
Bottom Key Position:
__
~
_ _ ---J/T
Access to Power Switch;
All Controls and Indicators
(Both Parts Open)
MLO-O06033
(SCP stands for system control panel and ISE stands for Integrated
Storage Element.)
VAX 4000 Model 300 Installation 5