Product details

• Catalog Description:
• DSDX 451 Remote In / Out Expansion Unit
  
• Long Description:

• DSDX 451 Remote In / Out Expansion Unit 20 Ch
  DI 24V 12 DO 0.1-3A
  Plug 4 pos 2664197-4
  Plug 2 pos 2664193-2
  Plug 8 Pos 2664193-8

• Product Net Depth / Length:
• 216 mm
  
• Product Net Height:
• 180 mm
  
• Product Net Width:
• 94.5 mm
  
• Product Net Weight:
• 2.9 kg

What is the specific working principle of the input and output module in the fire alarm system, that is, how the input and output module actually works. Here we will specifically introduce the working principle of the input and output module. In fact, a microprocessor is embedded in the input and output module, and through the microprocessor, communication with the fire alarm controller, power bus failure detection, output control, input signal logic status judgment, input and output line fault detection, status indicator control. After receiving the starting command of the fire alarm controller, the module draws the output relay and lights the indicator. After receiving the answer signal from the device, the input and output module transmits the information to the fire alarm controller. It is mainly used to connect fire linkage equipment that requires fire alarm controller control, such as alarm bell, sound and light alarm, fire shutter door, water pump, smoke exhaust fan, elevator, broadcast switch, etc.

We use 4 devices to specify the working principle of the input and output module: smoke sensor, controller, input and output module, fire pump. When the smoke detector detects a fire, it transmits information to the controller. The controller sends a signal to the fire pump through the output end of the input and output module to start the fire pump. After the fire pump starts, the startup information is transmitted to the controller through the input end of the input and output module. In fact, the input and output module of the fire alarm system works in this way.

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