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Question:

How control module relays works in association with fire alarm systems?

And wat kind of relays are used for it?How they are interfaced with HVAC , Door control systems , Security control systems etc.

Answer:

don't panic, be calm . do not stay under the roof ,over it would be better.use stairs ,not lift ,if possible.get cover under a strong table,not termite infested one.don't worry ur instinct will work at that time.
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