The eUICC IoT Manager (eIM) is a standardised provisioning component within the SGP.32 architecture. The eIM enables eSIM profiles to be downloaded and managed remotely, both for individual IoT devices and for large-scale device fleets.
Unlike consumer scenarios, the eIM requires no direct user interaction. It also removes the need for complex or inflexible point-to-point integrations with mobile network operators, simplifying the deployment and management of IoT connectivity at scale.
Role in IoT provisioning
The eIM acts as the central control layer within the provisioning architecture. It determines when profiles are made available and coordinates the provisioning process between device-side components, such as the IoT Profile Assistant (IPA), and the profile infrastructure.
To support a wide range of IoT use cases, the eIM supports lightweight communication protocols. This allows provisioning to operate over constrained networks and on devices with limited resources.
Through this combination of central control, standardisation, and efficient communication, the eIM is a key enabler of scalable and manageable IoT connectivity.
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