Publication No. SBC330-0HH/3
Connectors and Cables 77
9 • Connectors and Cables
9.1 VPX Connectors
SBC330
is
a
3U
board
and
uses
differential
‐
type
VPX
connector
modules
for
P2.
Figure 9-1 SBC330 Connector Layout
VPX
connectors
are
idealized
such
that
they
provide
a
means
of
dealing
with
high
‐
speed
differential
pairs,
for
high
speed
fabric
communications.
The
connectors
use
wafers
of
PCB
material
that
maintain
the
characteristic
impedance
of
the
trace
through
the
connector
interface.
Also,
by
geographical
arrangement
each
pair
is
completely
shielded
left,
right,
top
and
bottom
from
the
next
signal
pair.
VPX
connectors
may
appear
less
robust
than
previous
industrial
connectors,
but
their
construction
means
that
actually
they
are
more
robust;
they
cannot
suffer
from
pins
bending
to
create
shorts
and
the
multiple
contact
solution
results
in
high
reliability
in
high
vibration
environments.
The
P0
pin
out
is
completely
defined
by
the
VPX
46.0
Specification.
LINK
The Rear Transition Module for the SBC330 is the SBC330RTM. It provides accessibility to the
backplane signals and a means for connecting to other equipment – see
SBC330RTM Product
Manual
for more details.