Requirements for eSIM

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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.


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


1. eSIM dimensions

Must match standard MFF2 eSIM size:

ESIMreq.jpg
















2. eSIM pin-out

There are two default eSIM pin-outs:

Pin-outs.jpg










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:

13“ in diameter.

4. Compatibility with Teltonika FM devices

Project Current SIM configuration Possibility to solder eSIM? Possibility to have eSIM + another SIM?
FMB110/FMB120/FMB130/FMB140 Micro SIM Yes Yes. Micro SIM + eSIM
FMB122/FMB125 Dual Standard SIM Yes Yes. Standard SIM + eSIM
FMU120/FMC120/FMM120 Micro SIM Yes No
FMU122/FMC122/FMM122 Dual Standard SIM Yes No
FMU125/FMC125/FMM125 Dual Standard SIM Yes No
FMU126 Dual Micro SIM Yes No
FMU130/FMC130/FMM130 Micro SIM Yes No
FMB202/FMB204/FMB206 Micro SIM Yes Yes. Micro SIM + eSIM
FMB207/FMB208 Micro SIM Yes Yes. Micro SIM + eSIM
FMB900/FMB920 Micro SIM Yes Yes. Micro SIM + eSIM
MTB100 Micro SIM Yes No
FMB964/FMB962 Micro SIM Yes Yes. Micro SIM + eSIM
FMC640/FMM640 Dual Standard SIM Yes Yes. 2 x eSIM Possible
FMB640 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
FM3001 Micro SIM Yes No
FM36M1 Standard SIM Yes No
FM3612 Standard SIM Yes No
FM6300 Dual Standard SIM Yes Yes. 2 x eSIM Possible
FMT100 Micro SIM Yes. Special Hardware No. Only 1 SIM type can be used (ether eSIM or Micro SIM)
FMP100 Nano SIM Yes Yes. Nano SIM + eSIM