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KONTRON
4.4 MTBF
The
following
MTBF
(Mean
Time
calculated using a combination of manufacturer's test data, if
the
data
was
available,
and
a
remaining parts. The Bellcore calculation used is "Method 1 Case
1". In that particular method the components are assumed to be
operating at a 50 % stress level in a 40° C ambient environment
and
the
system
is
assumed
to
Manufacturer's
data
has
been
manufacturer's data, when used, is specified at 50° C, so in
that sense the following results are slightly conservative. The
MTBF
values
shown
below
are
for
telecommunications
environment.
environmental stresses (extreme altitude, vibration, salt water
exposure, etc.) lower MTBF values.
†
System MTBF (hours) :
Notes: Fans usually shipped with Kontron Embedded Modules GmbH products have
50,000-hour typical operating life. The above estimates assume no fan, but a
passive heat sinking arrangement.
Estimated RTC battery life (as opposed to battery failures) is not accounted for in
the above figures and need to be considered for separately. Battery life depends
on both temperature and operating conditions. When the Kontron unit has
external power; the only battery drain is from leakage paths.
coolMONSTER/PM User's Guide
13
Between
Failure)
values
were
Bellcore
calculation
for
the
have
not
been
burned
in.
used
wherever
possible.
The
a
40°
C
in
an
office
or
Higher
temperatures
and
other
(171.636)
TBD
Specifications
4.5 Environmental Specifications
Temperature
4.5.1
The Intel® Mobile Pentium®-M is specified for proper operation
when junction temperature is within the specified range of 0 °C to
100°C.
The Intel® 855GM/GME Chipset temperature and the Intel® ICH4 I/O
Controller Hub 4 (82801DB) case temperature are maximum 110°C.
†
Operating: 0 to +65 C
(*) (with appropriate airflow)
Non-operating: -10 to +85 °C (non-condensing)
†
Note: (*) The maximum operating temperature is the maximum measurable
temperature on any spot on the module's surface. You must maintain the
temperature according to the above specification.
Humidity
4.5.2
†
Operating: 10% to 90% (non-condensing)
†
Non-operating: 5% to 95% (non-condensing)
Specifications
14
KONTRON
coolMONSTER/PM User's Guide
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