What is the difference between a relay and a module?

You power a voltage power current on one side of the circuit that powers an electromagnetic coil which pulls the metal contacts together. Consequently, this allows the current to flow on the other side of the relay. As you may expect, there are different relay module types.

What is a monitoring module?

Monitor modules are used to supervise a circuit of dry-contact input devices, such as conventional heat detectors and pull stations, or monitor and power a circuit of two-wire smoke detectors.

What is relay module in fire alarm system?

A fire relay is a switch that sits between the fire system control panel and the power source to the door locking methods. While there are different types of fire relays and different ways to configure them, the job of a fire relay is simple: when there’s a fire alarm, the fire relay unlocks the selected doors.

How many types of modules are in a fire alarm system?

There are four basic types of panels: coded panels, conventional panels, addressable panels, and multiplex systems.

What is a relay control module?

The Relay Control Module interfaces with the Engine/Powertrain Control Module to provide control of the cooling fan(s), A/C clutch and fuel pump, and Main Power Relay.

Why do we need a relay module?

The relay module is an electrically operated switch that can be turned on or off deciding to let current flow through or not. They are designed to be controlled with low voltages like 3.3V like the ESP32, ESP8266, etc, or 5V like your Arduino.

What is control relay module?

Control Relay Module provides a Form “C” dry relay contact to control external appliances such as door closers, fans, dampers etc. This device does not provide supervision of the state of the relay contact. Instead, the on-board microprocessor ensures that the relay is in the proper ON/OFF state.

What is the function of a relay module?

What does a fire alarm control panel do?

The point of a fire alarm control panel is to activate a quick emergency response when there’s a fire so everyone in the building has a chance to get out safely.

What is relay and relay module?

Relay Modules A power relay module is an electrical switch that is operated by an electromagnet. Held in place by a spring, the armature leaves a gap in the magnetic circuit when the relay is de-energized. While in this position, one of the two sets of contacts is closed while the other set remains open.

Why relay module is used?