T-128 AC And dc and ac/dc and generations

[ToasterBanana55]

What is the difference are the ones that look like this with the older ASC logo AC? or are the new ones with the newer logos AC/DC?
is the older ASC logo an older gen?

(IMAGES ARE NOT MINE CREDIT GOES TO WHOEVER TOOK THE PHOTOS)

[07VFDInLCD]

The logo has nothing to do with whether the siren has an AC-only, DC-only, or AC/DC configuration.

The logo simply tells us how old the siren is:

• The blue rectangular logo was used from the 90s to the mid-2000s.

• The circular logo with the three arrows was used from the late-2000s to the mid-2010s.

• The white rectangular logo was used from the mid-2010s to present day.

All Tempest sirens use DC motors. The different configurations are simply how the siren gets its DC power:

• The AC-only config uses an AC-to-DC rectifier; it has no batteries and cannot function without AC line power.

• The DC-only config uses batteries paired with a battery charger. It cannot function without batteries.

• The AC/DC config has everything- rectifier, batteries, battery charger. It runs on AC line power until there is a power outage/failure, which it then switches over to battery power.

[ToasterBanana55]

Okay cool, thank you.