7 types fire alarm modules

Commercial fire alarm, public fire security alarm and fire automatic fighting system installation and operation.
vedard
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Joined: Wed Dec 05, 2018 12:27 am

7 types fire alarm modules

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The module is an important part of automatic fire alarm system. It is used to connect various equipment to fire alarm control panel and enable fire automatic fighting, fire system self monitoring etc.
There are 7 types of fire alarm system modules.
1. Input module
The input module is used to receive signal input. According to the different input signal, it can be divided into switching input module and analog input module. The switching input module is relay contact N/C or N/O connection with input device. It is used to connect water flow indicator, pressure switch, signal valve and other equipment and receive alarm, feedback signals, then transfer to the fire alarm control panel. The analog input module is generally used to receive current or voltage signals and transfer to fire alarm control panel.
2. Output module
The output module is used to control the start and stop or switch of some devices and not receive signal from the device. It is generally used to control devices such as broadcasting, audible and visual alarms, alarm bells and other devices.
3. Input/output module
It is used to control the connected device and receive the feedback signal from the device.
4. Repeat module
The repeat module is used to extend the bus-line communication distance and enhance the anti-interference ability of the system.
5. Isolation module
The isolation module is connected to the protection circuit at the front end of the system. In case of faults such as short circuit, the part connected at the back end will be isolated from the system, which will not cause the whole system to be unable to work normally. The isolator can restore itself after the repair of some faulty lines.
6. Switch module
The switch module is used to connect the input and output modules with the high-current controlled equipment, and works as a protective part, which is equivalent to a relay.
7. Multi-line module
The multi-line module is mainly connected with the fire multi-line control board. The multi-line module directly connected with the field control equipment can realize the action of the field equipment without linkage relationship.
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