Siemens SIMEAS R Maintenance Manual page 84

Mass Storage
3.2 Opening the Device
Note
Leaving the lower screws in the housing will make it easier to insert the front plate afterwards.
Flip the front plate forward (see Figure 3-4).
Figure 3-4 Open device
Caution
Do not strain the two ribbon cables that connect the front cover to the CPU board!
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Digital Fault Recorder, SIMEAS R/SIMEAS R-PMU, Maintenance Manual
E50417-H1074-C364-A2, Release 11.2009