In this Tech Tip we’re going to how you how to check the event buffer on a DSC Maxsys Commercial Security Alarm Monitoring System. The DSC 4020 Maxsys Commercial Security Alarm Monitoring System is designed for commercial applications like schools, large commercial properties, industrial facilities and more. The Maxsys commercial security alarm system allows for you to review any events which occurred on the system through the “event buffer”. This allows for troubleshooting of issues on the system, or lets you check when the system has been armed or disarmed.