SCS-150

Current Version

Version 108 | September 23, 2025

This update supports panel firmware Version 254, which allows you to enable Serial 3 messages to include the panel serial number. If enabled, the panel family and corresponding serial number appear at the end of each Serial 3 message, allowing the monitoring center to identify the correct system if two panels unintentionally use the same account numbers. 

For more information about updating the SCS-150, refer to the SCS-150 Update Installation Sheet. 

To use this feature, the following firmware versions are required:

• XTL Series Version 254 (9/19/25)
• XT30/XT50 Version 254 (9/19/25)
• XR Series Version 254 (9/17/25)
• XT75 Version 254 (9/19/25)
• XF6 Series Version 254 (9/19/25)
• TMSentry Version 254 (9/18/25)
• Com Series Version 254 (9/19/25)

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Previous Version 

Caution: It is not recommended moving panels from the Current Version to a Previous Version.

Version 107 | December 12, 2019

Output Raw CID (ContactID) String

This feature has been added to support the upcoming version 202 firmware of DMP Universal Communicators. This will allow the receiver to process Serial 3 messages received that contain CID (ContactID) event codes within the message. Upon receipt of those messages, it will process only the CID portion of the message out to the Central Station Automation.