Installation guide

1. Insert one cable connector into the power bus outlet located on the
expander cabinet’s H405 AC power input box (see Figure C–6).
2. Insert the other cable connector into the DEC power bus outlet located
on the system cabinet’s H405 AC power controller.
CAUTION: For reliable operation, AC power should come from the same
bulk distribution panel that supplies power to the system cabinet. This
ensures that ground references for the VAXBI expander cabinet are at
the same potential as the system cabinet.
3. Plug in the AC power cable.
4. Replace the cabinet doors.
5. See the VAXBI Expander Cabinet Installation Guide for power-up
instructions.
Figure C–6: DEC Power Bus Cabling
EXPANDER
CABINET
SYSTEM
CABINET
msb-0044-89
REAR VIEW
DEC POWER
BUS CABLE
H405 AC
POWER
CONTROLLER
H405 AC
INPUT BOX
Installing an Expander Cabinet C–9