User`s guide

The VAX 6000 Platform Overview
1.9 Power System
The power system consists of an H405-E/F AC power controller, the
H7206-B power and logic unit, power regulators for the XMI and
optional VAXBI, and an H7236-A battery backup unit, also optional.
Figure 1–9 Power System (Rear View)
H7214, H7215, AND
H7242 POWER
REGULATORS
H7206-B
POWER AND
LOGIC UNIT
H405-E/F
AC POWER
CONTROLLER
H7236-A
BATTERY BACKUP
UNIT (OPTIONAL)
msb-0308-90
Table 1–3 Input Voltage
Model No. Hz Nominal Phase
H405-E 60 208V 3
H405-F* 50 380V 3
H405-F 50 416V 3
*Change tap for 380V (nominal) operation.
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