Sim Card Reader; Microsd Card Reader; Sim Cards; Technical Specifications Of Microsd Card - Advantech SmartFlex SR307 User Manual

5.8.4 SIM card reader

Two SIM card readers for 3 V and 1.8 V SIM cards are located on the rear panel of the
router. In order for the router to function, it is necessary to insert an activated SIM card with
an unblocked PIN code. The SIM cards may have different adjusted APNs (Access Point
Names).
Changing the SIM card:
Always disconnect the router from power supply before handling the SIM card!
Using a plastic opening tool, or your fingernail, press the SIM card slightly into its
slot until you hear a click.
After hearing this click, release the card and it will pop out of its slot.
Remove the SIM card and push any other SIM card into the slot until it clicks into
place.

5.8.5 MicroSD card reader

The microSD card reader is located on the rear panel of the router (the third slot). This card
reader allows the router to operate with microSD memory cards. The technical specifications
are stated in the table below.
Technical specifications of microSD card
Supported technologies
Supported capacity
Supported microSD card filesystems
Table 11: Technical specifications of microSD card
Figure 32: SIM cards
SDHC, SDXC
SDHC up to 32 GB
SDXC from 32 GB to 64 GB
vfat, ext2, ext3, ext4
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SmartFlex SR307