3.2 Powering Down the Cabinet
The VAX 6000-series processor cabinets use H405 power controllers. To remove power from
the cabinet, use the following procedure:
1. Locate the cabinet control panel in the upper-left corner of the front door. The cabinet
control panel is shown in Figure 3–3.
2. With the console key, turn the Standby/Enable/Secure control switch to 0.
3. Turn the Update/Halt/Auto Start control switch to Halt.
4. Go to the rear of the cabinet.
5. Locate the H405 power controller.
6. Remove power from the cabinet by pulling the power controller main circuit breaker T-
handle located on the H405 power controller. Refer to Figure 3–3.
7. Unplug the cabinet power cord from the ac receptacle.
3.3 Installing H405–E or –F Power Controllers
Note
Replacing the H405–E/F VAX 6000 power controller may be necessary for VAX 6000
SA7x embedded storage installations. To determine if this procedure is necessary,
carefully follow the instructions in this section.
Installing the SA7x embedded storage options may require replacing the H405–E/F VAX 6000
power controller.
Some VAX 6000 system cabinets may contain H405 power controllers with switched ac outlets.
Replace any of these H405–E/F power controllers with the H405–E/F power controllers in the
62X34–UA/UB upgrade kits.
The H405–E/F power controller in the 62X34–UA/UB upgrade kit provides unswitched ac
outlets with some electrical enhancements for proper operation of the SA7x options as
embedded storage in the VAX 6000 cabinet.
3.3.1 Determining if H405–E/F Replacement Is Necessary
To determine of the H405–E/F replacement is necessary:
1. Perform an orderly system shutdown (Section 3.2).
2. Turn the upper key switch on the front control panel to the "0" position.
3. From the rear of the VAX 6000 system cabinet, locate the H405 power controller (lower-
right corner) and remove power using the main circuit breaker. (See Figure 3–3.)
4. Unplug the system power cord from its receptacle.
5. Wait 2 minutes for all components to discharge.
3–4 Installing the SA70–CK Kit
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