User`s guide

The VAX 6000 Platform Overview
1.3 System Rear View
Figure 1–2 System Rear View
COOLING
SYSTEM
XTC POWER
SEQUENCER MODULE
XMI
CARD CAGE
XMI POWER
REGULATORS
ETHERNET AND
CONSOLE TERMINAL
CONNECTORS
POWER AND
LOGIC BOX
AC POWER
CONTROLLER
VAXBI
CARD CAGES
BATTERY
BACKUP UNIT
msb-0312-90
DISKS
OPTIONAL
*
*
*
*
VAXBI POWER
REGULATORS
*
Components visible from the rear of the cabinet are shown in Figure 1–2.
• Power sequencer module (XTC) located on the back of the system
control assembly
• XMI power regulators
• I/O bulkhead space
The panel covering the XMI and VAXBI areas is the I/O bulkhead
panel and provides space for additional I/O connections.
• XMI backplane and cables
• Ethernet and console terminal connectors
• Cooling system, with open grid over a blower
• Power and logic unit
• AC power controller
• Optional components:
VAXBI power regulators
VAXBI backplane and cables
Battery backup unit
Disks
1–5