Tornado Alert Sirens

After-hours testing of a severe weather alert system in a small office building in preparation for a tornado drill the next day. The sirens are Federal Signal SelecTone sirens with a "Slow Whoop" tone module.

Legit questions are okay and as usual, all stupid comments will be deleted.

Category:

Science & Technology

Tags:

• Tornado
• Siren
• Federal
• Signal
• SelecTone

[videogamer24385]

If there is no control panel, then how is the system activated?

[SimplexTech]

@videogamer24385  120VAC (a light switch)

[FACP07]

Does the whoop come from an onboard NA driver or from a driver on the FACP?

[SimplexTech]

@FACP07 If you could read you would see there IS NO FIRE PANEL

[alpha1178]

I been wondering

What do you do to a person that has epileptic seizures because of a strobe light during an evacuation procedure?

[SimplexTech]

@alpha1178 I've never seen or heard of that happening.

[thebiggreen101]

Notice the click after each whoop.

[sfs2040]

@alpha1178

Have you ever noticed that the strobes on all the horns/notification appliances flash in sync with one another? They're set up that way to avoid seizures. If they all flashed out of sync, alarm-related seizures would be more common.

[wileyk209zback]

@SimplexTech That would make sense; there's a school I know that has a Simplex 4208 +4010 fire alarm system with 4051 horns on 4050-80 light plates for the fire alarm, but for the lockdown alarm or severe weather alerts, they use the school bell system (old 6-inch Simplex bells that are flush-mounted and REALLY loud!)

[TssCman123]

@alpha1178 I've been wondering that, too. If it is a procedure, they will probably take that person outside, or to a strobe free area. Usually people only get seizures if the strobes are not synced, and I've never been in a drill where the strobes were not synced.