Issue
What could be the cause when adding four System Sensor Horn / Strobes to a Wheelock audio visual loop, and the horns are worrking fine but the strobes are not flashing correctly.
Solution
When installing Audio / Visual Appliances, all devices on the loop must be from the same manufacturer. Mixing System Sensor with Wheelock or Gentex or any combination may cause the Horns or the Strobes to work intermittently or not at all. This is because each manufacturer has their own Sync Pulse Protocol to run their notification devices.
