From the SMS.

1. Log in to the SMS from a client.
2. On the SMS toolbar, navigate to Devices > All Devices and expand the tab.
3. Select an X-Family IPS device from the display window and do one of the following:
   • Right-click and select Edit > Device Configuration.
   • On the top menu, select Edit > Details > Device Configuration.
   • Double-click the device and click on Device Configuration.
4. On the Device Configuration Wizard screen, click the TSE Settings tab.
5. The Device Configuration (TSE Settings) screen displays.
6. If you want to automatically release IP addresses from quarantine after a specified amount of time, select the "Automatically release addresses from quarantine after specified duration" check box and modify the entry for Quarantine Timeout (Specify the Timeout value in minutes).
7. Click OK to update the device.

From the TPS LSM.

1. From the LSM menu, click Policy > Settings.
2. On the Settings page, look for the Quarantined Addresses section.
3. If you want to automatically release IP addresses from quarantine after a specified amount of time, select the "Automatically release addresses from quarantine after specified duration" check box and modify the entry for Quarantine Timeout (Specify the Timeout value in minutes).
4. Click Apply.

Reference: SMS User Guide
Reference: LSM User Guide