Question:

What does style B, D, Y & Z mean?

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In Fire Alarm systems it is hard to find what they mean.

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  1. The control panel provides four Class A or B (Style

    D or B) Initiating Circuits, one dedicated Class B (Style B)

    Supervisory Circuit, and four Class B (Style Y) Output Circuits.

    An optional Class A (Style Z) Output Module is available.

    For more detailed information look up Protectowire fire systems on the internet.

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