Other
Considerations
TEMPEST
Support
TEMPEST
is
a
US
Government
specification
and
NATO
certification
intended
to
protect
valuable
and
mission
critical
information
from
being
intercepted
through
leaking
emanations,
including
unintentional
radio
or
electrical
signals,
sounds,
and
vibrations.
The
protection
efforts
are
also
known
as
emission
security
(EMSEC),
which
is
a
subset
of
communications
security
(COMSEC).
Several
FiberPlex
Technologies
FOI
units
have
a
variant
designated
with
a
‘T
‐
ST’
suffix,
which
has
been
rigorously
designed
and
tested
to
comply
with
TEMPEST
requirements.
These
units
can
easily
be
visually
identified
by
their
silver
finish.
An
RFI
suppressed
version
of
the
PSQ
‐
4909
AC
power
supplies
have
been
tested
with
the
TEMPEST
FOI
units
and
should
be
used
with
those
units
as
part
of
a
complete,
certified
TEMPEST
solution.
This
version
can
be
ordered
using
an
‘R’
suffix
after
the
model
number
(PSQ
‐
4909
‐
R).
When
using
TEMPEST
rated
FOI,
much
care
must
be
taken
in
both
the
mating
equipment
and
especially
the
copper
cabling
used
in
such
connection.
In
addition,
the
power
supplies
and/or
chassis
being
uses
must
have
an
‘R’
suffix.
For
standalone
applications,
use
a
PSQ
‐
4909
‐
R
(or
the
older
PSQ
‐
4910
‐
R)
power
supply
or
for
a
chassis
mounted
solution
use
either
an
RMC
‐
3101
‐
R
or
RMC
‐
2101
‐
R
chassis.
All
the
items
in
the
system
must
be
TEMPEST
compliant
for
the
system
to
properly
protect
the
information.
Specifications
ELECTRICAL SPECIFICATIONS
Min
Typ
Max
Unit
Power
Requirement
PSQ
‐
x909
AC
Supplies
Input
Voltage
100
‐
240
VAC
Input
Frequency
50
‐
60
Hz
Output
Voltage
‐
9
‐
VDC
Supply
Current
‐
1000
‐
mA
Output
Power
‐
9
‐
W
Power
Requirement
PSQ
‐
x920
Low
Voltage
Supplies
Input
DC
Voltage
12
‐
48
VDC
Input
AC
Voltage
(50
‐
60
Hz)
10
‐
32
VAC
Output
Voltage
‐
9
‐
VDC
Supply
Current
‐
1000
‐
mA
Output
Power
‐
9
3
W
Environmental
Storage
Temperature
‐
40
‐
85
°C
Operating
Temperature
0
‐
50
°C
Power
Connector
PSQ
‐
x909
NEMA
5
‐
15P,
Permanently
Affixed
PSQ
‐
x920
Phoenix
Contact
1827716
PHYSICAL SPECIFICATIONS
Case
Dimensions
FOI
Size
Length
Width
Height
Weight
PSQ
‐
2909
2
2.25
in
(57mm)
2.56
in
(65
mm)
1.31
in
(33
mm)
0.8
lb
(0.4
kg)
PSQ
‐
3909
3
2.38
in
(60
mm)
3.19
in
(81mm)
1.45
in
(37
mm)
0.8
lb
(0.4
kg)
PSQ
‐
4909
4
2.25
in
(57mm)
2.56
in
(65
mm)
1.45
in
(37
mm)
0.8
lb
(0.4
kg)
PSQ
‐
2920
2
2.25
in
(57mm)
2.56
in
(65
mm)
1.31
in
(33
mm)
0.8
lb
(0.4
kg)
PSQ
‐
3920
3
2.38
in
(60
mm)
3.19
in
(81mm)
1.45
in
(37
mm)
0.8
lb
(0.4
kg)
PSQ
‐
4920
4
2.25
in
(57mm)
2.56
in
(65
mm)
1.45
in
(37
mm)
0.8
lb
(0.4
kg)
