KONTRON
Specifications
12
speedMOPSlcdCE User’s Guide
4.4
MTBF
The following MTBF (Mean Time Between Failure) values were calculated using a combination of
manufacturer’s test data (if the data was available) and a Bellcore calculation for the remaining
parts. The Bellcore calculation involved the “Method 1 Case 1” method. In that particular method,
the components were assumed to be operating at a 50% stress level in a 40° C ambient
environment, and the system was assumed to have not been burned in. Manufacturer’s data was
used wherever possible. The manufacturer’s data, when used, was specified at 50° C, which means
that the following results were slightly conservative. The MTBF values shown below were for a 40° C
office or telecommunications environment. Higher temperatures and other environmental stresses
(extreme altitude, vibration, and salt water exposure) will lower the MTBF values.
System MTBF (hours) :
184220
Notes:
Fans shipped with Kontron Embedded Modules GmbH products have an
operating life of up to 50,000 hours.
The estimates above assumed that a passive heat-sinking arrangement was
used instead of a fan.
Estimated RTC battery life (as opposed to battery failures) was not accounted for
in the above figures and needs separate consideration. Battery life depends on
temperature and operating conditions. When the Kontron unit uses external
power, the battery drain comes from leakage paths.
Summary of Contents for speedMOPSlcdCE
Page 1: ...speedMOPSlcdCE User s Guide Document Revision 1 2...
Page 2: ......
Page 8: ...KONTRON Contents vi speedMOPSlcdCEUser s Guide...
Page 86: ...KONTRON Appendix C Block Diagram 78 speedMOPSlcdCEUser s Guide 25 APPENDIX C BLOCK DIAGRAM...
Page 88: ...KONTRON Appendix D Mechanical Dimensions 80 speedMOPSlcdCEUser s Guide 26 1 2 Side View...
Page 90: ...KONTRON Appendix E Connector Layout 82 speedMOPSlcdCEUser s Guide 27 2 Bottom Side...
