User`s guide

The VAX 6000 Platform Overview
1.11 Options
System options include the VAXBI card cages and power
regulators, battery backup unit, and in-cabinet disks.
Figure 1–11 System Options
VAXBI CARD
CAGES
BATTERY BACKUP UNIT
msb-0398-90
DISKS
VAXBI POWER
REGULATORS
VAXBI Card Cages and Power Regulators
The optional VAXBI I/O interface is a one-channel bus housed in two 6-
slot VAXBI card cages. Two power regulators supply power to the VAXBI
backplane. Additional VAXBI card cages can be added to a system by
installing a VAXBI expander cabinet.
Battery Backup Unit
The battery backup unit supplies power to sustain the system for up to 10
minutes following a power interruption. Ride-through capability for up to
1 second is provided. The system control panel indicates the status of the
battery backup unit.
Disks
Up to two RA90 or RA92 disk drives can be mounted in the system cabinet.
Each disk drive has its own enclosure and control panel.
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