Power Supply Board - Data General NOVA 4/S Manual

Data General Corporation (DGC) has prepared this anual for use by DGC personnel and customers as a guide te the proper itutaliation. operation, and
maintenance of DGC equipment and soft ware. Tne drawings and specifications contained herein are the property of DGC and shall neither be rerrrxtneed in whole or
VNR UNIT
POWER SUPPLY BOARD
(BEHIND BACKPANEL)
5-Slot Power Supply
chassis consist of a power supply board, a fan module, a
These modules are interconnected by an internal cable
(wiring harness) and by etch on the backpanel, as shown in
The power supply board converts the power from the
ac line to regulated dc voltages and in turn powers the
chassis. It also provides clock and status signals for the
CPU and memory. Fault detection circuits automatically
shut down the supply if an emergency condition occurs.
In a system with battery backup, the power sup iy
board contains a battery charger along with a small
battery that supplies power for the battery backup
The backpanel routes power, control, and status Signals
between the power supply circuit board and the printed
Figure 6.4 5-SLOT POWER SUPPLY