User's Manual

Iridium Communications, Inc. Information Contained in this Guide
Iridium Core 9523/9523N Product Developer’s Guide is Subject to Change Without Notice
Revision 7.2 DRAFT4
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2.1 Dimensions and Layout
The overall dimensions of the Iridium Core 9523 and its weight are summarized in Table 3 and
represented graphically in Figure 3.
Table 3: Iridium Core 9523 Mechanical Dimensions
Parameter
Value
Length
70.44 mm
Width
36.04 mm
Height (from FA board)
14.6 mm max (reservoir capacitors)
8.9 mm (screening can)
Weight (approximate)
32g
The Iridium Core 9523/9523N consists of a single PCB with components mounted on top and bottom
sides.
On the top side, there are three reservoir capacitors, the RF connector, and a screening can covering all
the remaining circuits.
The bottom side has a Molex 40-pin multi-way user interface connector. The bottom side does not have a
screening can, but instead the PCB artwork has an exposed ground ring all around the edge of the board.
This ground ring makes contact with an aluminum screening frame, attached to the Iridium Core
9523/9523N by four corner thread-forming screws. The tips of these screws protrude through the
aluminum frame and act as alignment pins when mounting onto the FA board. The aluminum frame also
has at its center a 1.0mm diameter alignment pin.
There are a further four corner screw holes through the aluminum frame and PCB for securing the Iridium
Core 9523/9523N to the FA board.
The two height values provided in Table 3 do not include the height of the compressible gasket on the
bottom of the Iridium Core 9523/9523N that will mate to the FA board. It is assumed that this gasket will
compress to near zero thickness if screws are torqued sufficiently.