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EPS1U Power Supply Design Guide, V1.1
4 Mechanical Overview
There are two physical sizes of the power supply enclosure intended to accommodate power levels of 125W,
250W and 350W. There are two output connector designs. A card edge solution to provide ease of installation
and removal and a wire harness to provide a traditional cabled solution. The chassis for the entry 1U power
supply is designed for use in 1U rack mounted systems.
4.1 High Power Card Edge Form Factor
STATUS
Large Power Form
Factor
The high power edge card form factor is intended for use at 250W and 350W power levels. Refer to Figure 1 for
details. The supply will provide its output power via a card edge on the interior face of the power supply to
provide users and manufacturers easy installation and removal of the power supply into the system.
Figure 1: Enclosure Drawing
300.0
+/
-
0.2
8.5
+/
-
0.3
Interior Face View
40.0
+0.2/
-
0.5
Exterior Face View
106.0
+/
-
0.2
80.92
+0/
-
0.05
12.54
+/
-
0.3
5.0
+/
-
0.3
Fan
IEC Connector
Fan
AC I/P
Bi-Color LED
(PWR/Fail)
IEC Connector
Center Line
53.0
+/
-
0.2
16.4
+/
-
0.2
IEC Connector
Center Line
All dimensions are i
n millimeters.
Top View
Side View
1
62 32
31