# Step 2: Confirm That Your Visionline Site Meets the Requirements

Confirm that your production Visionline site meets the following system and lock requirements:

## System Requirements

Make sure that your computer meets the following requirements:

* Key server:
  * Visionline V1.27 (or newer)
  * Windows 10 1901 (or newer)
  * Hosted in a location where internet traffic is allowed

## Lock Requirements

Make sure that all locks meet the following requirements:

* ASSA ABLOY online locks:
  * Bluetooth modules installed

    See [Step 3: Confirm BLE Module on All Locks](/latest/device-and-system-integration-guides/assa-abloy-visionline-access-control-system/visionline-acs-setup-instructions/developing-and-launching-your-visionline-mobile-key-app/launching-your-visionline-mobile-key-app/step-3-confirm-ble-module-on-all-locks.md).

For more details, see the following ASSA ABLOY Visionline document:


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