I am looking for suggestions to solve a Sim card problem. In my system I have a microcotroller interfaced to an Lte mode and this resides in an outdoor elevated position. I would like to put the Sim card for the modem in a location which is a couple of metres away. The link to that second piece of electronics contains Ethernet lines and potentially 1-2 extra physical cables.
Are there any existing solutions to allow me to have the Sim itself in the second indoor piece of electronics. Is there such a thing as a Sim bus range extender IC? It should translate the Sim card signals to some format which can be transferred over longer distances. On the other end of the link it should do the opposite.
Any ideas guys?
Lte<-->Sim ic<----->Sim ic<--> actual physical Sim