Xmi Power Supply Tray Assemblies - DEC Rackmount 7000 AXP Installation And Owner's Manual

Introduction
Table 1–8 XMI Power Supply Tray Assemblies
Tray Assembly
ac-to-dc converters (2)
5 Vdc regulator
5 Vdc regulator
Sequencer and auxiliary dc
voltage regulator
3.3 Vdc/-5.2 Vdc regulator
1
See Figure 1–6
1–14 Introduction
Description
Provides 300 Vdc to feed into regulators
+5 Vdc master supply
+5 Vdc booster supply
Consists of:
• Power sequencing logic
• +12 Vdc supply
• -12 Vdc supply
• +24 Vdc supply (fans)
• -2 Vdc supply
Consists of:
• +3.3 Vdc supply (not used for the
rackmount DEC 7000 AXP and VAX
7000 systems)
• -5.2 Vdc supply
1
Location
A + B
A1
A2
B1
B2