These 7 types of fire-fighting modules are used in the automatic fire alarm system of the hotel project
1. Enter the module
Input module The input module is used to receive signal input as part of the fire alarm system, some manufacturers call it a relay module, according to the input signal of the different input modules can be divided into switching input and analog input two.
Switch volume input is to receive a passive contact signal, through the input of the signal into the system, the general input module can be used to receive water flow indicators, pressure switches, signal valves and other equipment alarm, feedback signal; At present, the input module on the market can only receive normally open signal input, there are parameters can be set to receive normal open or normally closed signal input, there are dual input modules, multi-input modules and so on.
Analog input module is generally used to receive current or voltage signal, the general manufacturer’s non-coding detector alarm output is the current signal used to pick up the manufacturer’s addressing interface module, input into the system.
2. Output module
The output module is used to control the start-stop or switching of certain devices, and the non-receiving signal input is generally used to control devices without signal feedback, such as broadcast, sound and light alarms, alarms, etc.
3. Input and output module
Input and output module in some cases also known as control module, in the control requirements can output the signal, or provide a switching volume signal, so that the accused device action, at the same time can receive the equipment feedback signal to report to the host, is an important part of the fire alarm linkage system, the input and output modules on the market can provide a pair of passive normal open / normal closed contacts, to control the accused equipment, some manufacturers of the module can be set by parameters, set into Active output, corresponding to the dual input and output module, multi-input output module and so on.
4. Relay module
Relay modules are generally used to extend the communication distance of the bus in cases where the system communication distance is too far away, and to enhance the anti-jamming capability of the system.
5. Isolation module
The isolation module (also known as the bus isolator) connects the back-end connection part of the system in the event of a short circuit and other failures, so as not to cause the entire system to fail, and the isolator can resume work on its own after the faulty part of the line is repaired.
6. Switch modules
The switching module is used to connect the input and output module and the high current charge device, which acts as a protective function, which acts as a relay.
7. Multi-wire module
Multi-wire modules are also known as switching modules in some cases, and are used to connect multi-wire direct control points and charged devices.
Fire-fighting module is a bridge of fire alarm system, which plays an important role, with people paying more and more attention to fire safety, the application of the module will be more and more perfect.
