3-14
Themis Computer
PMC/XMC Carrier Board Manual
3.3
2P3 PMC Carrier Board Solder Beads
Solder beads are found only on
the bottom side
of the 2P3 PMC Carrier Board and
are described in
Table 3-7
on page 3-15.
In
Table 3-7
, if no pin number is given, only
2
solder pins exist. If there are
3
or
more
solder pins, the two pins listed are shorted together.
Short
means a solder bead
is
installed, creating an electrical path between contacts.
Open
means a solder bead
is not
installed, hence the path between the contacts is open.
Figure 3-6
on page 3-19, provides the location of the 2P3 PMC Carrier Board solder
beads. Remember that
pin 1
is indicated on the board by a
dot
and/or a
thick bar line
.
Caution:
When dealing with a
3- or 4-pin
solder-bead switch, a solder bead will
short only one set of pins.
If a solder bead shorts more than 2 pins, call Themis Customer Support.
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