System Sensor L Series Fire Alarm in BYU Joseph F. Smith Building (JFSB)

I was on my way home and got here just in time to see the fire alarm going off. Just the week prior, they had upgraded the Notification Appliances in this building from SpectrAlert Classic's to the SpectrAlert L-Series. It's a Notifier system. Only the NA's were upgraded, nothing else. This is consistent with the fire alarm upgrades the university is doing in other buildings that have the Classic devices. Slowly but surely, they're being replaced with the L-Series.