# Genesis Cordonel Interface Documentation

## GCI Onboarding Overview

![GCI Onboarding Overview](../../images/GCI__Onboarding_Overview_drawio.svg)

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## What is GCI?

Genesis Cordonel Interface (GCI) is a software layer providing controlled access to:

- meter communication
- firmware interaction
- runtime slot management
- register access
- preadjustment workflows
- diagnostics and worker execution

GCI acts as an integration bridge between external applications and internal meter infrastructure.

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## Main Interface Layers

| Page | Description |
|---|---|
| [InterfaceOutsideToGCI](InterfaceOutsideToGCI.md) | External API facade used by applications outside GCI. |
| [InterfaceGCIToLaatzen](InterfaceGCIToLaatzen.md) | Internal bridge and orchestration layer. |
| [PublicModels](PublicModels.md) | Public API models, request DTOs and result DTOs. |

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## Main Areas

- Slot lifecycle management
- Meter login and connection
- Register read/write access
- PCB identification
- Port detection
- Worker diagnostics
- Preadjustment workflows