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This section of the manual concerns itself with the
packaging of the 2050 Processing Unit and the loc.a-
tion of components and subassemblies within the
processing unit. For basic packaging concepts that
are common to all models of the System/360, see
SLT Packaging, SY23-2800.
Power Distribution Frame Locations
Figure 119 shows the locations of the circuit breakers
and switches in the bottom part of frame 03.
Figure 121 (Part l) shows the location of all
major components in the standard power distribution
frame (03).
Figure 121 (Part 2) shows the location
of major components in power distribution frame 05
which is used for the 512K storage feature only.
Frame and Gate Locations
The frame and gate locations of the 2050 are shown
in Figure 120 as are the swing angles of each gate in
the processing unit for access to the various areas
of the system.
logic Power Supplies
Regulators 1-12
Power
DC
On
Off
1-iliT
3
I
4
J
5
16
J
7
J
e
I
D
/r/
0
Thermal//
Reset Sw System
Power Off
Indicator
Bottom Section of Power Frome 03
FIGURE 119. POU CB AND SWITCH LAYOUT
Relay and Contactor Locations
Inverter/
Converter
Driver Power
Supplies
Regulators
13-17
Figure 122 shows the location of all relays and con-
tactors in the processing unit. Note that all of the
relays and contactors are accessible from the rear
of the power frame. For access to Kl-K4, hinged
LOCATIONS
covers must be opened. The remaining relays are
mounted in a relay gate in the lower right corner of
the power frame.
Circuit Breaker Locations
Figure 123 shows the location of the primary ac cir-
cuit breakers
in
the processing unit. Primary ac
circuit breakers 1-8 are mounted on a hinged cover
located in the lower center of the drawing on Figure
110. The circuit breakers for each individual ser-
vice voltage are located with the voltage regulator
for that service voltage.
Fuse Locations
Figure 124 shows the location of the fuses in the
processing unit. Fuses 1-6 are mounted on a hinged
cover located in the right lower center of the draw-
ing
in
Figure 124.
Voltage Regulator Locations
The voltage regulators that provide the various
service voltages for the processing unit are all lo-
cated in the power frame.
Figure 125 shows the lo-
cation of each voltage regulator, its systems page
location, part number, and description.
Figure 126 shows layout and jumpering of the
voltage divider assembly.
Overvoltage Assembly Locations
Figure 127 shows locations and adjustments of the
overvoltage assembly.
1/0 Tailgate Locations
Figure 128 shows locations of the 1/0 gate termin-
ators; Figure 129 shows locations of the interface
connections.
1/0
Address Cards
Figures 130-133 show the plugging for address cards
for the 1442, 1443, 2841, and 2400 TAU, respectively.
Locations
(3/71)
127
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