M2M Control CX320 Technical Manual V1.01
Page 34 of 42
The SD-card features a push/push eject system for reliable insertion and operation. Please refer to
Appendix C for the Micro SD card installation guide.
Both the card detect and the write protect
1
information is available to the user through the
application. Please consult the M2M Control IDE on-line help for more information. Avoid removing
the Micro SD card during access to the card.
Approved SD-CARDs
To ensure the highest performance and compatibility, it is important to use SD-CARDs approved and
tested by Infranet Technologies.
Commercial grade SD-CARDs can be used in applications where the limited write endurance is
acceptable - for example if the SD-CARD is often replaced. Commercial grade SD-CARDs should
not
be used in applications where the media's potential failure is considered mission-critical.
For applications that extensively use the SD-CARD media and where a failure is critical, it is
recommended to use approved
Industrial Grade
SD-CARDs.
Infranet Technologies has approved and recommends industrial-grade SD-CARDs from
ATP
available in capacities from 512 MB to 32 GB.
ATP Industrial Grade SD/SDHC Cards are optimized for demanding industrial applications with
consistent performance in all conditions. ATP uses reliable SLC flash technology with a flash
endurance more than 20 times higher than commercial grade products with MLC flash.
The differences in write endurance between commercial-grade MLC flash and ATP Industrial grade
SLC flash is quite remarkable for write-intensive applications:
Product Line
Details
Total Writeable Data
Prediction @ 1GB
Time Prediction
@ 500 writes a day (1GB)
ATP Industrial
Grade
SLC Flash
+ Advanced Wear Leveling
80,000GB
or
2,800,000 writes
5,740 days
or
15.7 years
Commercial
Grade
Grade A MLC
(2 bits per cell)
+ Advanced Wear Leveling
4,000GB
or
140,000 writes
280 days
1 This signal is not available, but for compatibility reason the software function will always return “not write protected”
