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Requirements for eSIM: Difference between revisions

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An embedded-SIM (eSIM) or embedded universal integrated circuit card (eUICC) is a form of programmable SIM card that is embedded directly into a device. The surface mount format provides the same electrical interface as the full size, 2FF, and 3FF SIM cards, but is soldered to a circuit board as part of the manufacturing process. In machine to machine (M2M) applications where there is no requirement to change the SIM card, this avoids the requirement for a connector, improving reliability and security. An eSIM can be provisioned remotely; end-users can add or remove operators without the need to physically swap a SIM from the device.
An embedded-SIM (eSIM) or embedded universal integrated circuit card (eUICC) is a form of programmable SIM card that is embedded directly into a device. The surface mount format provides the same electrical interface as the full size, 2FF, and 3FF SIM cards, but is soldered to a circuit board as part of the manufacturing process. In machine to machine (M2M) applications where there is no requirement to change the SIM card, this avoids the requirement for a connector, improving reliability and security. An eSIM can be provisioned remotely; end-users can add or remove operators without the need to physically swap a SIM from the device.


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'''1. eSIM dimensions'''
= eSIM dimensions =


Must match standard MFF2 eSIM size:
Must match standard MFF2 eSIM size:
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'''2. eSIM pin-out'''
= eSIM pin-out =


There are two default eSIM pin-outs:
There are two default eSIM pin-outs:
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The only difference in pin-outs is the IO pin – 2 or 3. Both versions of pin-outs are suitable for devices with eSIM.
The only difference in pin-outs is the IO pin – 2 or 3. Both versions of pin-outs are suitable for devices with eSIM.


'''3. Requirements for eSIM packing reel:'''
= Requirements for eSIM packing reel: =


13“ in diameter.
13“ in diameter.


'''4. Compatibility with Teltonika FM devices'''
= Compatibility with Teltonika FM devices =


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Revision as of 10:51, 8 December 2023

Main Page > Frequently Asked Questions - FAQ > Requirements for eSIM

An embedded-SIM (eSIM) or embedded universal integrated circuit card (eUICC) is a form of programmable SIM card that is embedded directly into a device. The surface mount format provides the same electrical interface as the full size, 2FF, and 3FF SIM cards, but is soldered to a circuit board as part of the manufacturing process. In machine to machine (M2M) applications where there is no requirement to change the SIM card, this avoids the requirement for a connector, improving reliability and security. An eSIM can be provisioned remotely; end-users can add or remove operators without the need to physically swap a SIM from the device.


In order to use eSIM with Teltonika FM devices, some basic requirements must be met.


eSIM dimensions

Must match standard MFF2 eSIM size:
















eSIM pin-out

There are two default eSIM pin-outs:










The only difference in pin-outs is the IO pin – 2 or 3. Both versions of pin-outs are suitable for devices with eSIM.

Requirements for eSIM packing reel:

13“ in diameter.

Compatibility with Teltonika FM devices

Project Current SIM configuration Possibility to solder eSIM? Possibility to have eSIM + another SIM?
FMB110/FMB120/FMB130/

FMB140/FMB230/FMB240

Micro SIM Yes Yes. Micro SIM + eSIM *

FMB122/FMB125/FMB225

Dual Standard SIM Yes Yes. Standard SIM + eSIM *

FMU125/FMC125/FMM125/FMC225

Dual Standard SIM Yes No
FMU126 Dual Micro SIM Yes No
FMU130/FMC130/FMM130/

FMC230/FMM230

Micro SIM Yes No
FMB202/FMB204/FMB206 Micro SIM Yes Yes. Micro SIM + eSIM
FMB208/FMB209 Micro SIM Yes Yes. Micro SIM + eSIM
FMB900/FMB910/FMB920/

FMC920/FMM920

Micro SIM Yes Yes. Micro SIM + eSIM
FMB965 Nano SIM Yes No
FMC640/FMM640 Dual Standard SIM Yes Yes. 2 x eSIM Possible
FMB640/FMB641 Dual Standard SIM Yes Yes. Standard SIM + eSIM
FMB001/FMB010 Micro SIM Yes Yes. Micro SIM + eSIM
FMB002/FMB020/FMB003 Nano SIM No -
FMM001/FMC001 Micro SIM Yes No
FMT100 Micro SIM Yes. Special Hardware No. Only 1 SIM type can be used (either eSIM or Micro SIM)
FMP100 Nano SIM Yes Yes. Nano SIM + eSIM
MSP500 Micro SIM Yes Yes. Micro SIM + eSIM

* - On special Request